Apparatus for Determining Strain Gauge Factor of Strain Gauges Model MT 058

Sci-tech Apparatus for determining the Gauge Factor of Strain Gauges Model MT 058 allows the measurement of deflection and strain in a bar and the determination of the gauge factor of strain gauges.

Sci-tech Apparatus for determining the Gauge Factor of Strain Gauges Model MT 058 is used to measure deformation in a bar by means of a dial gauge and four strain gauges in full bridge configuration. The gauge factor is calculated through several measurements taken with the strain gauges.

Item Description

The gauge factor (or strain factor) of a strain gauge is the ratio of relative change in electrical resistance to the mechanical strain. The signal obtained with a strain gauge is processed by a strain measurement amplifier to visualize the resulting strain in a display.

To evaluate the measurements given by the measuring device and the reading shown in the display, it is necessary know the gauge factor of the strain gauge.

 

Technical Specifications

– Unit mounted on a metallic frame.
– A bending bar:
Material: stainless steel. Dimensions: 680 x 25 x 12 mm
The bar is supported on ball bearings at two points, allowing to apply a purely bending stress. It includes two strain gauges on the tension side and two strain gauges on the compression side in full bridge configuration:
Strain gauge measuring point: full bridge, 350Ω.
– A mechanical load application device. It includes a spindle, a cross-arm and a flywheel.
– Dial gauge with adjustable dial for direct deflection measurement, range: 0-20mm., graduations: 0.01mm.
– Electronic console (in separate metallic box), including:
– Strain gauge connector.
– Digital display for the strain gauge.
– Cables and accessories, for normal operation.
– Manuals: This unit is supplied with the following manuals: Required Services, Assembly and Installation, Starting-up, Safety, Maintenance & Practices Manuals.