Instrumentation Lab

Measurement Of Strain Using Strain Gauge

• Parameter Measured : Strain in terms of Kilograms on a cantilever beam. 
• Measurement System : a] Weights b] Transducer with electronic instrumentation. 
• Transducer : Temperature compensated strain gauge. 
• Type : Cu-Ni foil with polyamide carrier base. 
• Gauge Resistance : 350 Ohms (Nominal). 
• Gauge Length : 6mm. 
• Gauge Width : 2.4 mm. 
• Gauge Base : 12.5 mm x 4.3 mm. 
• Gauge Factor : 2:1 (approx.) 
• Transducer : Strain gauges mounted on a stainless steel Measurement cantilever beam. 
• Configuration : Bridge with two arms as strain gauges (Wheatstones Bridge principle). 
• Range : 10 Kilograms. 
• Actual Strain : By various weights to be placed in a pan fixed with the beam. 
• Excitation Source : DC Regulated source. 
• Tare Adjustment : Zero adjustment by a ten turn potentiometer. 
• Readout : 3.5 digit digital display to indicate strain in kilograms. 
• Test Points : Multicoloured test points are provided at various stages in the circuit to observe waveforms and voltages. 
• Indicator : Mains ON/OFF. 
• Power Requirements 
• Standard Accessories : Detailed Instruction Manual.

Load Cell (strain Gauge) Trainer

• Demonstrate the principle and working of load cell and its applications for measuring load 0-2 Kg. 
• Supply required : 230 V, 50Hz AC. 
• Built in I.C. based DC regulated power supply with short circuit protection and LED indication for supply ON. 
• Bridge made up of 4 strain gauges mounted on a specially alloy materials type load cell. 
• Built in excitation voltage for the bridge. 
• Built in 3.5 digit seven segment display for direct reading stain in Kg. 
• Built in highly sensitive signal amplifier. 
• Different loads provided for building up of load. 
• Set of patch cords . 
• Housed in an elegant with a well spread intelligently designed circuit layout on front panel. 
• Strongly supported by a comprehensive instruction manual complete with theory and operating details. 
• With essential Test Points and detailed Instructional Manual 230V AC Operated and with required Patch cords.

MEASUREMENT OF ANGULAR DISPLACEMENT USING 

• To study of servo potentiometer as angular displacement measurement transducer. 
• 0 to 350 º. 
• op amp in signal conditioner circuit 
• Offset adder for position modulation 
• calibrated dial with 1º resolution 
• 3.5 digit DPM to read displacement 
• Cal constant 
• Block Diagram Printed on PCB.
• Built in IC regulated power supply 
• Detailed instruction manual 

Photo Transistor Trainer

• Study of Photo Transistor trainer 
• Circuit diagram printed on board 
• Set oh patch cords 
• Inbuilt power supply 
• User’s Manual 

Light Dependent Resistance (LDR)

• Study of Light Dependent Resistor as light intensity measuring transducer 
• Sockets for LDR to measure resistance at different intensity levels to determine the non - linear nature 
• 3.5 digit DPM as light intensity indicator 
• Sockets at different places to study the process to find out the error rate 
• Detailed instruction manual 

Photo Diode Trainer

• Study of Photo Diode trainer 
• Circuit diagram printed on board 
• Set oh patch cords 
• Inbuilt power supply 
• User’s Manual 

PRESSURE MEASUREMENT TRAINER 

To study of Pressure 

• Range :- 300mm. 
• Pressure Cell 
• Sockets at different places for observing / measuring the signals 
• 3.5 digit DPM indication of Pressure 
• 220V, Built in IC regulated power supply 
• Enclosed in an attractive ABS plastic cabinet with cover for safety of components. 
• Pressure generator with dial display. 
• Detailed instruction manual 

Measurement Of Displacement Using Lvdt

SPECIFICATION 
To study of LVDT as displacement transducer 
Built in AC excitation source 2.5 kHz typical 
Linear variable differential transformer in non metallic structure 
Micrometer attachment with mechanical displacement system 
Displacement range 10 mm/+5mm to -5mm 
Sockets at different places for observing / measuring the signals 
Balanced demodulator IC based 
3.5 digit DPM as displacement indicator 
Circuit diagram printed on PCB. 
220 V, Built in IC regulated power supply 
Enclosed in an attractive ABS plastic cabinet with cover. 
Detailed instruction manual 

Measurement of temperature using r. T. D.  

Specification 
Study of rtd as temperature measuring transducer 
RTD ( pt - 100 ) probe with protection cover 
3. 5 digit dpm as temperature indicator 
Bridge circuit for transducer 
Differential amplifier with feedback 
Lead compensation system 
O/p provided on test points for monitoring & controlling.  
Heater & glass thermometer for reference 
Detailed instruction manual 

Measurement of temperature using thermocouple 

Specification 
Thermocouple with digital panel meter 
O/p provided on test points for monitoring & controlling.  
Test pins for monitoring at all stages 
mercury thermometer & heater 10 watts 
220 v,built in ic regulated power supply 
Enclosed in an attractive abs plastic cabinet with cover for safety of components.  
Detailed instruction manual 

Measurement of temperature using thermocouple 

Specification 
Thermocouple with digital panel meter 
O/p provided on test points for monitoring & controlling.  
Test pins for monitoring at all stages 
Mercury thermometer & heater 10 watts 
220 v,built in ic regulated power supply 
Enclosed in an attractive abs plastic cabinet with cover for safety of components.  
Detailed instruction manual 

Measurement of distance using magnetic pickup 

Specification 
Dtudy of distance measurement by magnetic pickup.  
Distance measurement simulation using motor and wheel.  
Electromagnetic pick up 
Signal conditioner circuitry based upon op amps 
Excitation voltage for pick up 
4 digit digital counter 
Test points at various places to study the process 
Rotation and distance in cm upto 0 – 999. 9 cm.  
Built in ic regulated supplies 
Enclosed in an attractive abs plastic cabinet with cover for safety of components.  
Detailed instruction manual

Measurement of speed of DC motor using photo electric pick up 

Specification:
Study of speed measurement by light interrupt method 
12 v, 2400 rpm permanent magnet dc motor 
Speed controller 
Opto interrupter disc 
LED as light source 
Photo diode as sensor 
Signal conditioning circuitry based upon op amps 
4 digit digital counter as speed indicator 
Test points at various places to study the process 
The motor and transducer unit is covered with acrylic sheet 
Built in ic regulated power supplies for motor and process circuit 
Detailed instruction manual.  

Sample & hold trainer 

Specification:
Onboard adc 0809 & dac 0800.  
Digital output display on led's.  
Sample & hold selectable by toggle switch.  
Conversion time 100 m sec.  
Onboard variable dc signal (0-5v).  
220 v,built in ic regulated power supply 
Enclosed in an attractive abs plastic cabinet with cover for safety of components.  
Detailed instruction manual 

Measurement of air flow rate by anemometer 

General specification 
Measurement of air flow 
Display: fnd display 
Max. Show value: 1999 (3 ½) 
Sampling time: approx. 5 second 
Probe (fan) operating environment: 
Variable air flow generation using fan and variable supply 

Water tank level control & reaction vessel 
Sensors to detect different levels of water and switch off the water supply (logic controlled). This module is provided along with the water tank and sensors, required accessories 
reaction vessel to control the temperature of water set by the thermostat at a particular temperature by the user.

Fan control simulator 

Controls the speed of fan at various steps. This module should be provided along with fan as an experimental model and switch to be provided to change the speed of the fan through switching.

Seven segment display 

Simulator for displaying a message.  

Thermister trainer 

Specification 
Study of thermistor as 
Temperature measuring transducer 0-70c 
Thermistor ( ntc ) mounted in metallic tubing and protected from corrosion 
Study of non - linear ( exponential ) characteristics 
Unbalance bridge circuit with 1st degree linearization 
Differential gain amplifier 
3. 5 digit dpm as temperature scale 
Glass thermometer for reference, heater & jar.  
Detailed instruction manual 

Measurement Of Water Level Using Strain Gauge Based Water Level Transducer

Specification:
Study of Water Level Transducer Trainer. 
Range : 0 - 250 mm 
Jar with Scale 
Strain Gauge Transducer 
Sockets at different places for observing / measuring he signals 
3.5digit DPM for indication 
220V Built in IC regulated power supply 
Enclosed in an attractive ABS plastic cabinet with cover for savety of components. 
Detailed instruction manual 

Measurement Of Distance Using Magnetic Pickup

Specification
Study of distance measurement by Magnetic Pickup. 
Distance measurement simulation using motor and wheel. 
Electromagnetic pick up 
Signal conditioner circuitry based upon Op amps 
Excitation voltage for pick up 
4 digit digital counter 
Test points at various places to study the process 
Rotation and distance in cm upto 0 – 999.9 cm. 
Built in IC regulated supplies 
Enclosed in an attractive ABS plastic cabinet with cover for safety of components. 
Detailed instruction manual 

Programmable Logic Controller Trainer

Microcontroller Based modular Mini PLC Trainer 
PLC Trainer consisting of main unit, Hand held programming unit 
16 input signals (24V) and 16 outputs for controlling the process on D-type sub connector. 
Analog output : 12 bit 
Analog input : 16 channels (single ended) 8 channels (differential) 
Programming unit: Hand held model with 28 keys and 6 digit display. 
Static process control simulator board consisting of switches and 16 LEDs for input simulation and 16 LEDs for output indications respectively. 
RAM module with battery backup to store the programmes. 
RS232C port available for uploading & downloading of files from PC. 
Powerful commands like AND, OR, ANI, ORI, SET, RST, LD, LDI, OUT, TIMER, COUNTER, ANB, ORB, IL, ILC, etc. directly executable 
Model Programmes for the following process provided for the guidance of the User. 
Execution or programs are posible even without hand held unit 
Standard EPROM module which is affixed on ZIF socket to store the programmes provided with the trainer. 
Main unit and Hand held Key pad are housed in attractive metallic unit. 
User should be able to develop his own logics, store them in Hard Disk Drive 
Detailed manual to carry out the experiments along with the instructions 
Operating voltage: 220V, 50Hz AC, ±10% at 50°C. 
INTERFACING EXPERIMENTAL MODULES 
Following static process simulator board/model setup are required to test the developed programs: 

LIFT CONTROL 

Experimental model of lift which is truly operational, totally controlled by manual switches to select the floors, set the priority through the program logics. 

Pick & Place Control

Using electromagnetic relays to control the displacement and energization of electromagnet to pick a small object and place it at the destination as per the logics made.

Sequential Switching Of Motors

Sequential switching of motors with two nos. of 220V AC/5A output to connect motor (Without Motor )

Linear Motion Potentiometer

Specification
To study of measurement of linear displacement by potentiometer 
Linear Motion Potentiometer as transducer 
Motion travel 0 - 75mm 
Mechanical attachment with vernier 
3.5 digit DPM as displacement indicator 
Calibration constant 
Offset adder for position modulation 
Op - amp in signal condition circuit 
Block Diagram Printed on PCB. Block Diagram Printed on PCB.
Built in IC regulated power supply 
Detailed instruction manual 

Capacitive Pickup Trainer (ANGULAR 0-90º 

Specification
Variable condenser as transducer 
V/F convertor 
gain amplifier 
0 -90 degree acurray +/-1 degree +/- 1%. 
Test Point for measuring Signals 
3.5 digit DPM for indication of displacement 
220V, IC regulated Power supply 
Block Diagram Printed on PCB.
Sockets at different places for observing / measuring the signals 
Enclosed in an attractive ABS plastic cabinet with cover for safety of components. 
Detailed instruction manual 

Temperature Transducer Trainer

Specification:
Transducers : 4 nos. (NTC Thermistor, Platinum RTD, Type K Thermocouple, IC Temperature Sensor. 
Heat. Source : Wirewound Resistance 
Signal Conditioning Circuitry : Instrumentation Amplifier, X100 Amplifier, DC Amplifier, Comparator, Electronic Switch 
Input Circuits : Rotary & Slide 
Output circuits : Relay & Buzzer 
Interconnections : 2/4 mm banana sockets. 
Supply : 230 VAC ± 10% / 50 Hz 
Standard Accessories : Detachable Mains Cords, Instruction & Experiment Manual. 

Optical Transducer –  Photo Conductive, Photo Voltaic, Photo – Diode, Photo – Transistor.

Specification:
Transducers : 4 nos. (Photo conductive Cell, Photo Transistor, Photo voltaic Cell & Pin photo diode 
Light. Source : Onboard light source provided. 
Signal Conditioning Circuitry : DC Amplifier, Power Amplifier, Buffer, Comparator, Current Amplifier & Electronics Switch 
Input Circuits : Rotary & Slide 
Output circuits : Relay & LED. 
Interconnections : 2/4 mm banana sockets. 
Supply : 230 VAC ± 10% / 50 Hz 
Standard Accessories : Detachable Mains Cords, Instruction & Experiment Manual.