KHC Encapsulated Strain Gages
KHC encapsulated strain gages/gauges are hermetically sealed. They consist of a sensing part and a cable to transmit output signals from the sensing part. The sensing part is composed of a metal tube and a flange. The highly heat-resistant metal tube has strain-gage elements and insulation material sealed in. The flange is spot-welded to the measuring targets. The key feature is it enables static strain measurement at normal temperature up to 500ºC and dynamic strain measurement at up to 550ºC. To minimize thermally-induced apparent strain, the half bridge is configured with active and dummy gages. Enclosure is made of Inconel 600 or SUS 321. It has an applicable linear expansion coefficients (×10-6/℃) of 11,13 and 16.
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