# QuickStick Repeatability Analysis

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 QuickStick Repeatability Analysis Purpose This application note presents the variables that can affect the repeatability of positioning using a QuickStick system. Introduction Repeatability and accuracy are almost universally considered to be important attributes of any precision electro-motive system. The goal of this document is to provide information on how to design a track to optimize the repeatability of the Quickstick (QS) LSM. Throughout this document repeatability and accuracy are defined as follows: Repeatability the tolerance within which the system will repeat a position Accuracy the tolerance from the ordered position the system achieves Figure 1: Repeatability and Accuracy Within this document, we will consider both of these characteristics as internal to the system. This means that all distances are taken relative to the location commanded in software or to a point on the track. This can only be used in reference to an external reference point if the ordered location has already been determined experimentally and the system is fixed relative to the reference point. Repeatability is considered bidirectionally, with vehicles arriving from both directions being considered. Repeatability and accuracy are key factors in many applications, especially those involving interactions with other machines. In many applications the repeatability is more important than accuracy since the accuracy of a high repeatability system can be improved by applying fixed adjustments to the motion command. For this reason, it is very useful to be able to determine how closely the vehicle can repeat a move to a MagneMotion Proprietary Information Page 1 of 7

2 position. Hence, the remainder of this document will focus on repeatability. There are two factors in determining the repeatability of movements on a system: the capabilities of the motors and the hardware configuration of the track. The capabilities of the motor are the same on any track. Quick Stick motors employ Hall Effect Sensor (HES) technology for position feedback. The HES implementation has a theoretical resolution of less than one micron and a practical resolution of two microns when measurement noise is considered. In an ideal system, i.e. with no track to vehicle interaction, this is the positional repeatability for any single magnet array or vehicle to that position. The velocity accuracy has a theoretical resolution of less than 1 mm/s. The hardware characteristics of the track are what determine the actual repeatability. Hardware selection can affect both positional repeatability and velocity variation for movements within a system. We will examine the effects of: 1. Friction 2. Guidance system selection 3. Vehicle construction tolerances 4. Track construction discrepancies 5. Track Rigidity 6. Payload 7. Motor Spacing MagneMotion Proprietary Information Page 2 of 7

3 Static and Dynamic Friction The difference between static and dynamic friction can induce variations in positioning. Dynamic friction determines the amount of force needed to keep the vehicle moving at a constant speed. Static friction determines the force necessary to start moving a vehicle from rest. In certain systems, the static friction can be significantly larger than the dynamic friction. This means that when starting or stopping, the two actions that determine repeatability, there is already a friction variation inherent in the system. In a closed-loop system such as QS with PID controller, friction affects accuracy and repeatability by introduction of non-linearity into the servo system. In general higher degrees of system non-linearity require higher servo bandwidth from the PID controller which is employed in the QS control system if the same level of motion accuracy and repeatability performance is required. Variations in friction within the system will make it more difficult to tune for optimal repeatability. As the friction in your system approaches the thrust limit of your motor, the consistency of the friction of your system plays a larger role. As the thrust produced by the motor is needed to both overcome friction and accelerate the vehicle, increasing the amount of thrust required to overcome friction will decrease the amount available for the quick acceleration needed for exactly positioning the vehicle. Therefore variations in friction near the high limit of the motor can result in insufficient thrust being available for fine vehicle positioning. The following actions can compensate for friction and increase repeatability: 1. Tune the PID controller of your system for the friction that is present. A properly tuned system will result in improved repeatability. 2. Minimize static and dynamic friction. This will increase thrust available for dynamic adjustment and reduce the thrust requirements to break the hold of static friction, which makes tuning significantly easier. In the case of a theoretically perfect guidance system with no friction, the control loop would result in positional repeatability equal to the resolution of the motor. 3. Minimize the difference between static and dynamic friction. This will help ensure the friction remains constant even when approaching a stop. Using preloaded bearings can aid in this and keep friction curves smoother. 4. If not possible, keep dynamic friction consistent. This will ensure that the PID controller can be tuned far more exactly as it needs to account for less variation in thrust requirements. MagneMotion Proprietary Information Page 3 of 7

4 Guidance System Selection There are a variety of guidance systems that can be used to support a vehicle relative to the motors. These include many permutations of wheels on rails, a flat platform on rollers, a surface sliding on another surface, maglev, air tables, or many other options. The selection of a guidance system affects the friction present in a system. For example, a guidance system utilizing wheels and rails has a lower coefficient of friction than a surface sliding on another surface. This leaves more thrust available for precise vehicle control as noted in the previous section. The guidance system also affects the consistency of the friction applied. As an example, consider a system using rails as opposed to a system using a flat platform riding on rollers. Figure 2: A Roller Based Guidance System Figure 3: A Wheel and Rail Guidance System The system using wheels on rails continuously experiences a more consistent friction. In the system using rollers, the vehicle intermittently impacts stopped rollers and is riding on different numbers of rollers at different times, resulting in changing friction and degrading repeatability. The guidance system can also create settling points, which are areas where a vehicle will prefer to stop. These could be a gap between rails, a joint in a surface, or an area with higher than average friction as examples. If one of these areas is near a station, a vehicle might tend to settle into it, degrading repeatability. MagneMotion Proprietary Information Page 4 of 7

6 Motor Spacing On the QuickStick Motors, reduced repeatability at the motor spacing is expected due to disruption in drive patterns. For this reason, it is preferable to have all repeatability critical operations occurring with full magnet array coverage over a motor, rather than over a space. Summary The track and vehicle construction play a very large role in the actual repeatability that a system can achieve. The same motors can have different motion quality on different tracks and from vehicle to vehicle. The best way to determine a system s movement characteristics is to build a prototype section of the type of track that will be used and test the vehicle on that prototype. This can help determine the effects of the bearing type, track material, motor spacing, and vehicle construction on repeatability. MagneMotion Proprietary Information Page 6 of 7

7 Appendix 1: Example Data On a system used at MagneMotion for testing, servo repeatability of less than 0.5 mm was achieved. When the PID function controlling positioning was tuned to the specific movement and the specific payload being transported, servo repeatability of less than 0.2mm was achieved. The track for the system consisted of aluminum extrusion, attached together with T-nuts. The guidance method used was rubber wheels on riding on the aluminum extrusion. The entire rail for the observed path was a single piece of extruded aluminum with no joints. Horizontally oriented bearings with rubber wheels provided lateral guidance. The vehicles weighed roughly 7kg. Pictures of the vehicle and track are shown below. Figure 4: Example System Figure 5: Example Rails Figure 6: Example Guidance System Figure 7: Example Vehicle More Information MagneMotion website: Questions & Comments: MagneMotion Proprietary Information Page 7 of 7

### APPLICATION NOTE QuickStick 100 Power Cable Sizing and Selection

APPLICATION NOTE QuickStick 100 Power Cable Sizing and Selection Purpose This document will provide an introduction to power supply cables and selecting a power cabling architecture for a QuickStick 100

### APPLICATION NOTE Electrostatic Discharge Protection on QuickStick Systems

APPLICATION NOTE Electrostatic Discharge Protection on QuickStick Systems Purpose This application note presents both the Electro-static Discharge (ESD) rating of the QuickStick (QS) system and methods

### Lecture 19. Magnetic Bearings

Lecture 19 Magnetic Bearings 19-1 Magnetic Bearings It was first proven mathematically in the late 1800s by Earnshaw that using only a magnet to try and support an object represented an unstable equilibrium;

### Config file is loaded in controller; parameters are shown in tuning tab of SMAC control center

Forces using LCC Force and Current limits on LCC The configuration file contains settings that limit the current and determine how the current values are represented. The most important setting (which

### Config file is loaded in controller; parameters are shown in tuning tab of SMAC control center

Measuring Forces Force and Current limits on LCC The configuration file contains settings that limit the current and determine how the current values are represented. The most important setting (which

### Extruded Positioning Stage

Extruded Positioning Stage Single-axis stage Turnkey operation Modular aluminum construction with integral brushless linear motor, linear encoder, limit switches, cable carrier, linear bearings and bellows

### Extruded Positioning Stage

Sold by Servo Systems Co. 53 Green Pond Road, Suite #2 Rockaway, NJ 07866 Toll Free: (800) 922-1103 Phone: (973) 335-1007 Fax: (973) 335-1661 www.servosystems.com Extruded Positioning Stage The Extruded

### Replace your belt, ball screw or rack and pinion mechanism with a simple and economical linear servo motor actuator

LINEAR SERVO ECONO-SLIDE Ultimate Solution for High Throughput Precision Positioning Replace your belt, ball screw or rack and pinion mechanism with a simple and economical linear servo motor actuator

### Ultra Series: Crossed Roller Ultra Precision Stages

Ultra Series: Crossed Roller Ultra Precision Stages Bayside Motion Group, has developed Ultra Positioning Stages for applications requiring the ultimate in accuracy. Available with a linear motor, ball

### Step Motor. Mechatronics Device Report Yisheng Zhang 04/02/03. What Is A Step Motor?

Step Motor What is a Step Motor? How Do They Work? Basic Types: Variable Reluctance, Permanent Magnet, Hybrid Where Are They Used? How Are They Controlled? How To Select A Step Motor and Driver Types of

### Repeatability. Prototyping. High Precision Lead Screws

High Repeatability High accuracy Short Lead times Fast Prototyping High Precision Lead Screws Offering smooth, precise, cost effective positioning, lead screws are the ideal solution for your application.

### Modelling of electronic throttle body for position control system development

Chapter 4 Modelling of electronic throttle body for position control system development 4.1. INTRODUCTION Based on the driver and other system requirements, the estimated throttle opening angle has to

### Six keys to achieving better precision in linear motion control applications

profile Drive & Control Six keys to achieving better precision in linear motion control applications Achieving precise linear motion Consider these factors when specifying linear motion systems: Equipped

### Couplings and Collars

Couplings and Collars Selection Guide The couplings featured in this catalogue have been carefully selected to accoodate varying degrees of shaft misalignment whilst offering minimum distortion of rotation.

### Good Winding Starts the First 5 Seconds Part 2 Drives Clarence Klassen, P.Eng.

Good Winding Starts the First 5 Seconds Part 2 Drives Clarence Klassen, P.Eng. Abstract: This is the second part of the "Good Winding Starts" presentation. Here we discuss the drive system and its requirements

### Anti-Cog Technology. Introduction

Anti-Cog Technology Introduction Ironcore linear motors have traditionally suffered from a phenomenon known as cogging. This is seen as a periodically varying resistive force when the motor is pushed by

### Independent cart technology. Linear Motors provide magnetic propulsion and control of multiple carts

Independent cart technology Linear Motors provide magnetic propulsion and control of multiple carts Moving conveyors forward Advances in linear motion are changing the way manufacturing and material handling

### GEEPLUS. Characteristics & Selection of Voice Coil Motors. Voice Coil Motor Characteristics

Characteristics & Selection of Voice Coil Motors Voice Coil Motor Characteristics Voice Coil Motors are highly controllable electrical actuators suitable for applications needing only limited displacement.

### Tuning the System. I. Introduction to Tuning II. Understanding System Response III. Control Scheme Theory IV. BCU Settings and Parameter Ranges

I. Introduction to Tuning II. Understanding System Response III. Control Scheme Theory IV. BCU Settings and Parameter Ranges a. Determining Initial Settings The Basics b. Determining Initial Settings -

### Screw Driven automation tables

automation tables Precise multi-axis positioning systems play an integral part in today s semiconductor, computer peripheral, solar power, flat panel, life sciences, lab automation, biomedical and electronics

### Understanding the benefits of using a digital valve controller. Mark Buzzell Business Manager, Metso Flow Control

Understanding the benefits of using a digital valve controller Mark Buzzell Business Manager, Metso Flow Control Evolution of Valve Positioners Digital (Next Generation) Digital (First Generation) Analog

### Variable Valve Drive From the Concept to Series Approval

Variable Valve Drive From the Concept to Series Approval New vehicles are subject to ever more stringent limits in consumption cycles and emissions. At the same time, requirements in terms of engine performance,

### Motor Technologies Motor Sizing 101

Motor Technologies Motor Sizing 101 TN-2003 REV 161221 PURPOSE This technical note addresses basic motor sizing with simple calculations that can be done to generally size any motor application. It will

### test with confidence HV Series TM Test Systems Hydraulic Vibration

test with confidence HV Series TM Test Systems Hydraulic Vibration Experience. Technology. Value. The Difference. HV Series TM. The Difference. Our philosophy is simple. Provide a system designed for optimum

### Overview of Air Bearings and Design Configurations Richard Pultar OPTI521 December 14, 2016

Overview of Air Bearings and Design Configurations Richard Pultar OPTI521 December 14, 2016 Introduction Air bearings are a type of bearing that use pressurized air to create an air gap between two surfaces.

### TRANSLATION (OR LINEAR)

5) Load Bearing Mechanisms Load bearing mechanisms are the structural backbone of any linear / rotary motion system, and are a critical consideration. This section will introduce most of the more common

### IPB-IB ELECTRIC ACTUATORS FOR INDUSTRIAL PROCESS CONTROL INDUSTRIAL STEAM BOILERS. BECK VIDEO Scan w/ Smartphone 1

IPB-IB R ELECTRIC ACTUATORS FOR INDUSTRIAL PROCESS CONTROL INDUSTRIAL STEAM BOILERS BECK VIDEO Scan w/ Smartphone 1 Increasing Business Pressures Necessitate Boiler Control Improvements Today s industrial

### Linear Shaft Motors in Parallel Applications

Linear Shaft Motors in Parallel Applications Nippon Pulse s Linear Shaft Motor (LSM) has been successfully used in parallel motor applications. Parallel applications are ones in which there are two or

### Precise, flexible, efficient automation solutions for the semiconductor industry

Precise, flexible, efficient automation solutions for the semiconductor industry 3 Wafer Handling High rigidity, no overshoot, no backlash: Rexroth wafer handling solutions are designed for perfect balance

### MECHATRONICS LAB MANUAL

MECHATRONICS LAB MANUAL T.E.(Mechanical) Sem-VI Department of Mechanical Engineering SIESGST, Nerul, Navi Mumbai LIST OF EXPERIMENTS Expt. No. Title Page No. 1. Study of basic principles of sensing and

### Reduction of Self Induced Vibration in Rotary Stirling Cycle Coolers

Reduction of Self Induced Vibration in Rotary Stirling Cycle Coolers U. Bin-Nun FLIR Systems Inc. Boston, MA 01862 ABSTRACT Cryocooler self induced vibration is a major consideration in the design of IR

### Guide Wheel System Properties, Selection & Sizing

Guide System Properties, Selection & Sizing Brett Frederick, Project Engineer, C.G. Bretting Manufacturing Kevin Kegel, AssemblySpecialist, C.G. Bretting Manufacturing Paper dust particulates wreak havoc

### Appendix A: Motion Control Theory

Appendix A: Motion Control Theory Objectives The objectives for this appendix are as follows: Learn about valve step response. Show examples and terminology related to valve and system damping. Gain an

### Application Note : Comparative Motor Technologies

Application Note : Comparative Motor Technologies Air Motor and Cylinders Air Actuators use compressed air to move a piston for linear motion or turn a turbine for rotary motion. Responsiveness, speed

### Linear Motion Technology Handbook. The Drive & Control Company

Linear Motion Technology Handbook The Drive & Control Company 1-2 Bosch Rexroth AG Linear Motion Technology Handbook R310EN 2017 (2006.07) Linear Motion and Assembly Technologies www.boschrexroth.com/brl

### CHAPTER THREE DC MOTOR OVERVIEW AND MATHEMATICAL MODEL

CHAPTER THREE DC MOTOR OVERVIEW AND MATHEMATICAL MODEL 3.1 Introduction Almost every mechanical movement that we see around us is accomplished by an electric motor. Electric machines are a means of converting

### COMPARING SLOTTED vs. SLOTLESS BRUSHLESS DC MOTORS

COMPARING SLOTTED vs. SLOTLESS Authored By: Engineering Team Members Pittman Motors Slotless brushless DC motors represent a unique and compelling subset of motors within the larger category of brushless

### Development of Engine Clutch Control for Parallel Hybrid

EVS27 Barcelona, Spain, November 17-20, 2013 Development of Engine Clutch Control for Parallel Hybrid Vehicles Joonyoung Park 1 1 Hyundai Motor Company, 772-1, Jangduk, Hwaseong, Gyeonggi, 445-706, Korea,

### FEASIBILITY STYDY OF CHAIN DRIVE IN WATER HYDRAULIC ROTARY JOINT

FEASIBILITY STYDY OF CHAIN DRIVE IN WATER HYDRAULIC ROTARY JOINT Antti MAKELA, Jouni MATTILA, Mikko SIUKO, Matti VILENIUS Institute of Hydraulics and Automation, Tampere University of Technology P.O.Box

### Identifying the Motorized RGS part number codes when ordering

RGS04 Motorized with 28000 Series Size11 DS RGS04 Linear Rail for Hybird 28000 Series Size 11 Double Stacks and RGS04 for 43000 Series Size 17 Single and Double Stacks (See Page 4) RGS04 Linear Rail with

### PRECISION BELLOWS COUPLINGS

PRECISION BELLOWS COUPLINGS Bellows couplings are used where precise rotation, high speeds, and dynamic motion must be transmitted. They exhibit zero backlash and a high level of torsional stiffness, offering

### VOLVO GENUINE Brake PARTS PRODUCT INFORMATION

VOLVO GENUINE Brake PARTS PRODUCT INFORMATION VOLVO GENUINE BRAKE DISCS The brake disc is a part of the complete braking system and contributes to vehicle braking by transferring kinetic energy into heat

### 3/3-Way-Proportional Valve

3/3-Way-Proportional Valve Content Page General Description 1 Design 2 Function 2 Technical Data 3 Options 4 Dimensions 5 Accessories 6 Flow Curves 7 General Description This proportional valve in combination

### How New Angular Positioning Sensor Technology Opens A Broad Range of New Applications. WhitePaper

How New Angular Positioning Sensor Technology Opens A Broad Range of New Applications WhitePaper How New Angular Positioning Sensor Technology Opens A Broad Range of New Applications A new generation of

### Experimental Evaluation of a New Braking System for Use in Passive Haptic Displays

Experimental Evaluation of a New Braking System for Use in Passive Haptic Displays S.Munir, L. Tognetti and W.J.Book George W.Woodruff School of Mechanical Engineering Georgia Institute Of Technology Atlanta,

### Electromagnetic Fully Flexible Valve Actuator

Electromagnetic Fully Flexible Valve Actuator A traditional cam drive train, shown in Figure 1, acts on the valve stems to open and close the valves. As the crankshaft drives the camshaft through gears

### TL4076 Top 5 Tips Get to know your TL4076

TL4076 Top 5 Tips Get to know your TL4076 Thermal Break with Teflon liner (behind fan) Hot End Assembly Fan Heat Block Extruder with toothed gear(brass) and idler (steel) Filament Guide Tube Nozzle Cable

### Transmission Error in Screw Compressor Rotors

Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Transmission Error in Screw Compressor Rotors Jack Sauls Trane Follow this and additional

### CHAPTER 1 INTRODUCTION

1 CHAPTER 1 INTRODUCTION 1.1 MOTIVATION OF THE RESEARCH Electrical Machinery is more than 100 years old. While new types of machines have emerged recently (for example stepper motor, switched reluctance

### ABS. Prof. R.G. Longoria Spring v. 1. ME 379M/397 Vehicle System Dynamics and Control

ABS Prof. R.G. Longoria Spring 2002 v. 1 Anti-lock Braking Systems These systems monitor operating conditions and modify the applied braking torque by modulating the brake pressure. The systems try to

### QS 100 LSM Power Management

990000717 Revision A Table of Contents Revision History...2 Overview...3 Soft Start not complete fault...3 Under voltage fault...4 Under voltage warning limit...5 Over voltage maximum limit...5 Over voltage

### T-MAX SERIES Direct Drive Rotary Servo

T-MAX SERIES Direct Drive Rotary Servo T-MAX SERIES Direct Drive Rotary Servo Low Profile Direct-drive Rotary Stage Smooth Brushless Servo-drive Positioning Motion Integrated High Resolution Rotary Encoder

### Nanomotion Technical Design Guide

Nanomotion Technical Design Guide 1 Table of Contents Quick Reference Guide 3 Introduction 4 Core Mechanical Design: Managing Normal Force 4 Linear & Rotary Designs 4-10 Mounting Tolerances 11 Motor Sizing

### LECTURE 27 SERVO VALVES FREQUENTLY ASKED QUESTIONS

LECTURE 27 SERVO VALVES FREQUENTLY ASKED QUESTIONS 1. Define a servo valve Servo valve is a programmable orifice. Servo valve is an automatic device for controlling large amount of power by means of very

### IC Engine Control - the Challenge of Downsizing

IC Engine Control - the Challenge of Downsizing Dariusz Cieslar* 2nd Workshop on Control of Uncertain Systems: Modelling, Approximation, and Design Department of Engineering, University of Cambridge 23-24/9/2013

### Selecting the Optimum Motion Control Solution for the Application By Festo Corporation

Selecting the Optimum Motion Control Solution for the Application By Festo Corporation The successful machine builder develops products that offer superior price, performance, reliability, and the ability

### Active Isolation System AIS

Active Isolation System AIS Active electronic-pneumatic vibration insulation system with powerful real-time control for the highest demands on effective insulation, deflection and constant level. n Active

### Getting to Know: Matthew Tongue, Norbar Torque Tools Ltd

Getting to Know: Matthew Tongue, Norbar Torque Tools Ltd Introducing maxon s new series of customer interviews. By Karen Whittaker Tell us little about your background. How did you come to the industry?

### Heavy Duty Ball Screw Linear Actuators

Heavy Duty Ball Screw Linear Actuators Thrust From 2,000 to 25,000 lbf Heavy Wall Steel Construction Longest Life Simultaneous High Thrust with High Speed Piston with Rugged Anti Rotation Feature Sealed

### Steer-by-Wire Systems with Integrated Torque Feedback Improve Steering Performance and Reduce Cost

Steer-by-Wire Systems with Integrated Torque Feedback Improve Steering Performance and Reduce Cost Geoff Rondeau, Product Manager Thomson Industries, Inc. Wood Dale, IL 540-633-3549 www.thomsonlinear.com

### stage from resolution accuracies is 400 peak) and the from an to outpu positioning (as shown N] continuous continuous needs

Earthquake Simulation Using Single or Dual-Axis Linear Motion Stages With the goal of safer buildings and saving lives, scientists and engineers, through the simulation of many recent earthquakes, need

### Causes and Symptoms of Roll Feed Length Inaccuracy

Causes and Symptoms of Roll Feed Length Inaccuracy 1.0 Feed Roll Gear Backlash Feed roll gearing backlash can cause erratic feed lengths as the tooth mesh position varies with the final positioning of

### S-SERIES DISPLACEMENT TRANSDUCERS

user manual S-SERIES DISPLACEMENT TRANSDUCERS Index Section Title Page 1.0 Introduction.................. 3 2.0 Installation................... 4 2.1 Mounting the Transducer........ 4 2.2 Cores.......................

### Theory of Machines II EngM323 Laboratory User's manual Version I

Theory of Machines II EngM323 Laboratory User's manual Version I Table of Contents Experiment /Test No.(1)... 2 Experiment /Test No.(2)... 6 Experiment /Test No.(3)... 12 EngM323 Theory of Machines II

### Development of a PID Controlled Arduino-Based Stabiliser

Development of a PID Controlled Arduino-Based Stabiliser Yee Lyn Wah 1, Choon Lih Hoo 2,*, Yen Myan Felicia Wong 1 and Jun Jet Tai 1 1 School of Engineering, Mechanical Engineering, Taylor s University,

### Direct Drive Rotary An Increasingly Attractive Servo Choice

Direct Drive Rotary An Increasingly Attractive Servo Choice DDR systems are available in frameless, housed and the newly developed Cartridge motor format. While many engineers are familiar with the basics

### Key words: torque sensor, force sensor, torque measurement, embedded sensor, planar coils, pcb coils, ferrite, planar system

Contact-free electro-magnetic reactance based mechanical tension sensors Anatol Schwersenz; Philipp Cörlin; Christian Leiser; Tobias Kitzler; Tobias Senkbeil; ; Sebastian Schwiertz; Lutz May 1 TRAFAG GmbH

### LEAD SCREWS 101 A BASIC GUIDE TO IMPLEMENTING A LEAD SCREW ASSEMBLY FOR ANY DESIGN

LEAD SCREWS 101 A BASIC GUIDE TO IMPLEMENTING A LEAD SCREW ASSEMBLY FOR ANY DESIGN Released by: Keith Knight Kerk Products Division Haydon Kerk Motion Solutions Lead Screws 101: A Basic Guide to Implementing

### Kaydon white paper. The importance of properly mounting thin section bearings. an SKF Group brand. by Rob Roos, Senior Product Engineer

The importance of properly mounting thin section by Rob Roos, Senior Product Engineer an SKF Group brand Figure 1 Radial Load Reversing Thrust Overturning Moment Thin section ball have a much thinner cross-section

### r) Technologies, Inc. Linear Stepper Motor Travel 144 inches [3.6 m] Velocity 80 inches / sec [2 m/s] Acceleration 1 G 1 G Peak Force 65 lbs [289 N] C

Cs GROUP SIX LehriAG Avim SEI Ki CO LTD. Linear Stepper Motors - Single and Dual Axis Motors - Great Transport Motion Systems - Full, Half or Microstepping Contact Us! 800-433-3434 USA Email info@grp6.com

### ACTIVE AXIAL ELECTROMAGNETIC DAMPER

ACTIVE AXIAL ELECTROMAGNETIC DAMPER Alexei V. Filatov, Larry A. Hawkins Calnetix Inc., Cerritos, CA, 973, USA afilatov@calnetix.com Venky Krishnan, Bryan Lam Direct Drive Systems Inc., Cerritos, CA, 973,

### Designing Drive Systems for Low Web Speeds

Designing Drive Systems for Low Web Speeds Web Tension Control at Low Speeds Very low web speeds can provide challenges to implementing drive systems with accurate tension control. UNWIND LOAD CELL COOLING

### AGN 076 Alternator Bearings

Application Guidance Notes: Technical Information from Cummins Generator Technologies AGN 076 Alternator Bearings BEARING TYPES In the design of STAMFORD and AvK alternators, the expected types of rotor

### LECTURE-23: Basic concept of Hydro-Static Transmission (HST) Systems

MODULE-6 : HYDROSTATIC TRANSMISSION SYSTEMS LECTURE-23: Basic concept of Hydro-Static Transmission (HST) Systems 1. INTRODUCTION The need for large power transmissions in tight space and their control

### Features of the LM Guide

Features of the Functions Required for Linear Guide Surface Large permissible load Highly rigid in all directions High positioning repeatability Running accuracy can be obtained easily High accuracy can

### Flexible Waveform Generation Accomplishes Safe Braking

Flexible Waveform Generation Accomplishes Safe Braking Just as the antilock braking sytem (ABS) has become a critical safety feature in automotive vehicles, it perhaps is even more important in railway

### Wheeled Mobile Robots

Wheeled Mobile Robots Most popular locomotion mechanism Highly efficient on hard and flat ground. Simple mechanical implementation Balancing is not usually a problem. Three wheels are sufficient to guarantee

### Introducing Galil's New H-Bot Firmware

March-16 Introducing Galil's New H-Bot Firmware There are many applications that require movement in planar space, or movement along two perpendicular axes. This two dimensional system can be fitted with

### LEAD SCREW LINEAR ACTUATORS: WHEN TO APPLY EXTERNAL, NON-CAPTIVE AND CAPTIVE STEP MOTOR ACTUATORS

LEAD SCREW LINEAR ACTUATORS: WHEN TO APPLY EXTERNAL, NON-CAPTIVE AND CAPTIVE STEP MOTOR ACTUATORS Authored By: Frank Morton and Engineering Team Members Haydon Kerk Motion Solutions A common way to generate

### Fig Electromagnetic Actuator

This type of active suspension uses linear electromagnetic motors attached to each wheel. It provides extremely fast response, and allows regeneration of power consumed by utilizing the motors as generators.

### MPN Mechanical pneumatic level control for Bilz air springs

50 MPN Mechanical pneumatic level control for Bilz air springs Bilz mechanical pneumatic level control for air spring systems with FAEBI and FAEBI -HD rubber or BiAir membrane air springs. Powerful vibration

### UTILIZATION OF PNEUMATIC ACTUATOR

UTILIZATION OF PNEUMATIC ACTUATOR Rupesh Parkhi 1 UG Student, Department of Mech, G.H.Raisoni College of Engineering, Nagpur, RTMN University ABSTRACT The pneumatic actuator represents the main force control

### INDIAN INSTITUTE OF TECHNOLOGY KHARAGPUR NPTEL ONLINE CERTIFICATION COURSE. On Industrial Automation and Control

INDIAN INSTITUTE OF TECHNOLOGY KHARAGPUR NPTEL ONLINE CERTIFICATION COURSE On Industrial Automation and Control By Prof. S. Mukhopadhyay Department of Electrical Engineering IIT Kharagpur Topic Lecture

### SHOCK ABSORBER/DAMPER TESTING MACHINE

SHOCK ABSORBER/DAMPER TESTING MACHINE Dampening force of a shock absorber is directly proportional to velocity and this parameter needs to be precisely controlled. A small variation of 1mm in a stroke

### Figure 1: Forces Are Equal When Both Their Magnitudes and Directions Are the Same

Moving and Maneuvering 1 Cornerstone Electronics Technology and Robotics III (Notes primarily from Underwater Robotics Science Design and Fabrication, an excellent book for the design, fabrication, and

### Features of the LM Guide

Features of the Functions Required for Linear Guide Surface Large permissible load Highly rigid in all directions High positioning repeatability Running accuracy can be obtained easily High accuracy can

### Introduction to hmtechnology

Introduction to hmtechnology Today's motion applications are requiring more precise control of both speed and position. The requirement for more complex move profiles is leading to a change from pneumatic

### DOUBLE ROW LOOP-COILCONFIGURATION FOR HIGH-SPEED ELECTRODYNAMIC MAGLEV SUSPENSION, GUIDANCE, PROPULSION AND GUIDEWAY DIRECTIONAL SWITCHING

DOUBLE ROW LOOP-COILCONFIGURATION FOR HIGH-SPEED ELECTRODYNAMIC MAGLEV SUSPENSION, GUIDANCE, PROPULSION AND GUIDEWAY DIRECTIONAL SWITCHING Jianliang He and Donald M Rote DISCLAIMER 0 OD cv This report

### Integration Guide TPE-500 SERIES. Force Sensing Resistor

Integration Guide TPE-500 SERIES To be used in conjunction with current single-point sensor data-sheets available at www.tangio.ca Tangio TPE-500 Series Integration Guide: Force Sensing Resistor v2.0 Jan

### motion table of contents: squarebot assembly 3.2 concepts to understand 3.3 subsystems interfaces 3.21 motion subsystem inventory 3.

The subsystem of the robot is responsible for exactly that,. It includes both the motors that generate, and the wheels and gears that transfer and transform that into the desired forms. With the structural

### using Class 2-C (Centralizing) tolerances. Jack lift shaft lead tolerance is approximately 0.004" per foot.

WORM GEAR JACK MODELS WORM GEAR ACTIONJAC JACKS Jack systems are ruggedly designed and produced in standard models with load handling capacities from 1/4 ton to 100 tons. They may be used individually

### The Synaptic Damping Control System:

The Synaptic Damping Control System: increasing the drivers feeling and perception by means of controlled dampers Giordano Greco Magneti Marelli SDC Vehicle control strategies From passive to controlled

### Technical Reference H-37

tepper Technical Reference H-37 tructure of tepper The figures below show two cross-sections of a.72 stepper motor. The stepper motor consists primarily of two parts: a stator and rotor. The rotor is made

### Higher, Faster, Further. damping control for turntable ladders. dspace Magazine 2/2009 dspace GmbH, Paderborn, Germany

PAGE 30 Universität Stuttgart / IVECO magirus Higher, Faster, Further Active damping control for turntable ladders PAGE 31 Turntable ladders nowadays are required to go higher, faster, further and be safer.

### Rotary Tables. Z Theta system

Rotary Tables High force Air bearings Roller bearings XY tables Z Theta system Cartesian systems Linear stepping motors and systems Linear brushless motors and systems Linear measurement systems Semiconductor/Electronics

### Air Bearing Shaker for Precision Calibration of Accelerometers

Air Bearing Shaker for Precision Calibration of Accelerometers NOMENCLATURE Jeffrey Dosch PCB Piezotronics 3425 Walden Avenue, Depew NY DUT Device Under Test S B DUT sensitivity to magnetic field [(m/sec