Encapsulated Strain Gages
Encapsulated strain gages 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.
Enable static strain measurement at 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.
|Materials Resistive element||NiCr alloy wire|
|Materials Base||Heat-resistant metal|
|Operating temperature in combination with major adhesives after curing (°C)||(Spot welding) -196 to 550ºC|
|Operating temperature in combination with major leadwire cables (°C)||MI Cable: -196 to 550ºC|
|Self-temperature-compensation (°C)||Normal temperature to 500ºC|
|Applicable linear expansion coefficients (×10-6/℃)||11, 13, 16|
|Strain limits at normal temp. (approx. %)||-|
|Fatigue lives at normal temp. (times)||-|
To Ensure Safe Usage
The specifications are for reference purpose only.
Actual values may vary depending on operating conditions including temperatures.