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