Sensors/Transducers Resistance Temperature Device (RTD) resistance-based temperature measurement Thermistor resistance-based temperature measurement 300 Ω resistor in voltage divider circuit 10000 Ω resistor in voltage divider circuit Model: U.S. Sensor PPG102C1 Transducer: voltage divider (R = 300 Ω) Wires: red power (5 V), black ground, blue output voltage Response: linear Model: Vishay BCcomponents 2381-640-64103 Transducer: voltage divider (R = 10000 Ω) Wires: red power (5 V), black ground, blue output voltage Response: semi-log
Sensors/Transducers Photocell resistance-based luminescence measurement Humidity Sensor capacitive-based humidity measurement 300 Ω resistor in voltage divider circuit integrated transducer & signal conditioners Model: Senba GL5528 Transducer: voltage divider (R = 300 Ω) Wires: red power (5 V), black ground, blue output voltage Response: log-log Model: Honeywell HIH-4030 Transducer: none Wires: red power (5 V), black ground, blue output voltage Response: linear
Sensors/Transducers 3-Axis Accelerometer capacitance-based acceleration measurement Pressure Transducer capacitance-based pressure/flow measurement tube for port 1 tube for port 2 integrated transducer & signal conditioners Model: Analog Devices ADXL335 Transducer: integrated Wires: red power (3.3 V), black ground, blue output voltage (x-acceleration), white output voltage (y-acceleration), green output voltage (z-acceleration) Response: linear integrated transducer & signal conditioners Model: Freescale Semiconductor MPXH6400A Transducer: integrated Wires: red power (5V), black ground, blue output voltage (port 1), white output voltage (port 2) Response: linear
Sensors/Transducers Strain Gage resistance-based strain/deflection measurement Model: Measurements Group CEA-13-125UW-120 Transducer: Wheatstone Bridge Wires: N/A Response: linear
Signal Conditioners Reconfigurable Signal Conditioning Box reconfigurable junction box to generate amplified or filtered data BNC input port (-V) various resistor & capacitor ports for multiple op/amp and filter configurations BNC output port input power BNC input port (+V)
Voltmeters and Signal Processors Sensor Interface Box DC voltmeter and signal processor for multiple sensors multiple input ports depending on sensor configuration Advantages: portable, configured for class sensors, configured for 2 sensors, multiple connection styles, compatible with external recording Disadvantages: fixed resolution, voltmeter only multiple 3-pin output connections to connect to external digital recording device
Voltmeters and Signal Processors Craftsman 82345 Handheld Multimeter meter and signal processor for multiple measurements dial to select resistance, AC or DC voltage, current, or air temperature measurement high current input Advantages: portable, multiple measurement capabilities, multiple resolutions (low to high) Disadvantages: not configured for class sensors, single connection style, not compatible with external recording voltage, low current, resistance of temperature input ground or reference line input
Voltmeters and Signal Processors Hewlett-Packard 3468A Benchtop Multimeter meter and signal processor for multiple measurements Advantages: multiple measurement capabilities, very high resolution, 2- and 4-wire resistance measurement for high accuracy Disadvantages: not portable, not configured for class sensors, single connection style, not compatible with external recording buttons to select resistance, AC or DC voltage, or current measurement inputs
Voltmeters and Signal Processors Tektronix TDS 3012B Digital Oscilloscope voltmeter and signal processor for high-speed measurements output screen with signal waveform inputs Advantages: high speed measurements up to 100 (MHz), extracts waveform, multiple channels, data recording Disadvantages: not portable, voltage measurements only
Voltmeters and Signal Processors Vernier LabQuest Sensor Box signal processor for multiple sensors Can interface with Sensor Interface Box to digitally record voltage output
Power Supplies Tektronix PS282 DC Power Supply Used to apply DC power to an experimental apparatus typically to drive a physical stimulus but also for powering the measurement apparatus including the sensors, Signal Conditioning Box, and Sensor Interface Box connecting ports
Power Supplies BK Precision 4007DDS Function Generator Used to apply AC power to an experimental apparatus typically to drive (or mimic) a physical stimulus waveform selection connecting ports