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Strain Gages for Measuring Axial Tension of Bolts
Overview
If it is difficult to bond a strain gage to the surface of a bolt for measuring the tightening stress, these gages enable the measurement by embedding into a hole, 2 mm in diameter, bored from the top head of the bolt.

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Technical Information
Major Properties
Materials Resistive element CuNi alloy foil
Materials Base Polyimide
Operating temperature in combination with major adhesives after curing (°C) EP-370: Normal temp. to 50ºC
Operating temperature in combination with major leadwire cables (°C) φ0.14 Polyester-coated copper cable 5 cm long
Self-temperature-compensation (°C) -
Applicable linear expansion coefficients (×10^-6/℃) -
Strain limits at normal temp. (approx. %) -
Fatigue lives at normal temp. (times) -
Remarks
Bore diameter 2
*We have offered service with our sophisticated bonding work of strain gage onto bolts provided by our customers.
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