Product Code:
Control Systems0043
Description:
Sensor Trainer
Specification:
SENSOR TRAINER -
FEATURES:
Aesthetically designed injection moulded electronic desk.
Master unit with experiment resources like Power supplies, DPMs, computer interface, bar graph LED indicator function generator etc.
Central slot with replaceable experiment panel secured in an ABS molded plastic sturdy enclosure.
Has colorful screw less overlay showing circuit and its connection tag numbers for easy connectivity.
Hands on learning by plotting sensors characteristics.
Set of users guide provided with each Unit .
SPECIFICATIONS:
MASTER UNIT:
Built in power supply
DC supply ± 12V, 500mA, variable 7V to 14V@ 3Amp. For torque measurement experiment.
Built in function generator
O/P waveform sine, triangular and square, TTL O/P frequency 1Hz to 200KHz in ranges with amplitude and frequency control pots, o/p voltage 10Vpp.
On-board measurement
DC voltmeter 2V/20V (1 No) and LED BAR graph with 10 LED indicator to display 0 ~ 2.5V or 0 ~ 4V input .
Operating voltage
220V / 230V ± 10%, 50Hz 75VA.
EXPERIMENTS:
1) Strain Gauge Transducers
Piezo resistive transducer for strain measurement.
Micrometer 0 ~ 20mm (accuracy 0.01mm) for strain generation .
Strain gauges mounted on cantilever in half and full Wheatstone bridge and instrumentation amplifier with zero and span adjustment for calibration .
Experiments on gauge factor determination, strain indicator, displacement measurement using strain gauges.
2) Displacement Sensing Transducers
Micrometer 0 ~ 20mm (accuracy 0.01mm) .
Precision phase sensitive rectifier .
Measurement frequency of 1KHz sine.
Zero and span adjustment for calibration of following transducers:
Resistive linear transducer 0 ~ 20mm.
Capacitive linear transducer 0 ~ 20mm.
Capacitive angular transducer 0 ~ 90 degree.
Inductive linear transducer : 0 ~ 20mm.
LVDT transducer : 0 ~ 20mm or ( -10 ~ + 10mm) .
3) Speed Sensing Transducers
12V DC motor with speed varying from 0 ~ 4000rpm and rotating slotted wheel having 8 slots.
Individual signal conditioning circuit with programmable threshold comparator .
F to V converter with span and zero amplifier.
Speed transducers :
Magnetic pickup.
Photo reflective.
Photo interruptive.
Inductive pickup with envelop detector.
Stroboscope.
Hall sensor .
4) Sound Sensing Transducers
40KHz gated oscillator to generate ultrasonic sound waves.V to I function block to convert voltage O/P into 4 ~ 20mA current loop.
Sound sensors :
Ultrasonic distance measurement.
Dynamic microphone as sound /audio sensor.
5) Light Sensing Transducers
Incandescent lamp with variable intensity light sensors:
Photo diode with I to V converter.
Photo transistor with I to V converter.
Photo resistor/LDR with R to V converter using constant current source.
Photovoltaic cell / solar cell.
Opto coupler, laser diode, infrared LED, red LED.
6) Temperature Sensing Transducers
Instrumentation amplifier to amplify thermocouple signals .
Built in heat bar / mini oven driven by power amplifier of sufficient wattage .
Temperature selection up to 95 degree C in 5 ranges with ON /OFF closed loop control.
Temperature sensors :
Thermocouple J with room temperature calibration pot.
Thermo couple K with room temperature calibration pot.
Thermister (100K).
PT100.
IC sensor.
Bimetallic switch.
7) Vibration Sensor and Air Flow Sensor Experiment Panel
Vibration sensor:
Operation range : Audio frequency (2KHz - 8KHz).
Power amplifier : 1W capacity as a vibration generator.
Piezo electric sensor.
Determination of acceleration (accelerometer), velocity, displacement components.
Air flow sensor :
Preheated thermister = 100 Oham.
DC fan (12V, 1½â€) to generate variable airflow in a mini wind tunnel with manual outlet control.
Bridge amplifier to O/P 0 = 2V at various temperatures (Fan speed).
