SCOPE OF LEARNING:
· Study of Strain Measurement using Strain Gauge Transducer.
· Parameter Measured: Strain in Terms of Grams on a cantilever beam.
· TECHNICAL SPECIFICATIONS:
Power Supplies:
· DC Dual Power Supply IC Regulated +5V DC, 150mA.
· Operated on Mains power 230V, 50Hz +10%
Digital Meters:
· 3.5Digit Meter 200mV (Weights in mV)
Measurement Systems:
a) Weights
Transducer with Electronic Instrumentation
Strain Sensor:
ü 4 Number of Strain Rosette fixed to plate
ü Transducer: Temperature Compensated Strain Gauge
ü Type: Cu-Ni foil with polyamide carrier base.
ü Gauge Resistance: 350 Ohms (Normal)
ü Gauge Length: 6mm
ü Gauge Width: 4mm
ü Gauge Base: 5mmx 4.3mm
ü Gauge Factor: 2:1 (Approx)
ü Transducer: Strain gauges mounted on a stainless steel Measurement Cantilever Beam.
ü Configuration: Bridge with 2 Arms as Strain Gauges (Wheatstone Principle)
ü Range: Upto 1 Kilogram
ü Actual Strain: By Various weights to be placed in a pan fixed with the beam.
ü Excitation Source: DC Regulated Source.
ü Tare Adjustment: Zero Adjustment by a Potentiometer.
ü Readout: 3.5 Digit display to indicate Strain in Kilograms.
ü Test Points: Test Points are provided at various stages in the circuit to observe waveforms and voltages.
ü Strain Sensor Mounted on External Base with Output Carrying out through 9 Pin D Connector
ü Weight Box for Weight Measurement.
ü Power Requirements: 230V, 50Hz +10%
Components are mounted on the panels are:
· Resistors
· Capacitors
· IC AD620
· Variable Resistor For Gain and Zero Setting
· Bridge Circuit on Board.
· Differential Amplifier With Feedback
· Lead Compensation System
· O/P Provided On Test Points for Monitoring & Controlling.
SALIENT FEATURES:
· Front panel built with high class insulated Printed Circuit Board sheet with well printed circuits and symbols.
· Instruction manual.
· Connections are brought out through 2mm Colored Sockets.
· Patch Cords 2mm.
· The trainer is housed in ABS Plastic cabinet.
· Size of the trainer set 12”x8”