Cantilever Beam consists of stainless steel beam fitted with strain gauge elements and displacement transducer. Load is applied by adding weights in the weighing pan, for different load conditions, the Young's modulus can be computed. Strain gauges, and displacement transducers, are two different elements used in this trainer. Four strain gauges are employed in bridge form to measure strain.

The stress component is given by the displacement transducer. By using these two inputs, Young's modulus can be computed by arithmetic. The arithmetic is to be programmed by you in the form of a program, using Computer Applications Trainer, Model DAS-1 or Microprocessor trainer Model MPT-85, with stress and strain components as input parameters. This demonstration module provides an academic exercise to see how simple cantilever measurements can be performed for different load conditions. This interface provides an experimental setup to study how an application oriented instrument works.

Specifications:

a) Strain Gauge Transducer:

• Material of the strip: stainless steel
• Length of the strain gauge foil: 10mm
• Thickness of the strip: 3.5mm
• Supporting line to leading point: 200mm
• Length of the strip: 300mm
• Width of the strip: 25mm
• Resistance of the strain gauge: 350ohms
• Excitation voltage: 9V DC
• Two strain gauges are mounted on one side of the strip. Two more on the other side of the strip.

b) Displacement Transducer:

• Displacement: 5mm
• Excitation frequency: 4Khz
• Excitation voltage: 1V pp
• Case: stainless steel
• All mounted on an elegant Jig.