Easy-to-Use High-Temperature Strain-Sensor Systems

Easy-to-use high-temperature strain-sensor systems based on strain gauges made from Pd/Cr-alloy wires have been developed. These systems include strain-gauge units comprising Pd/Cr wires bonded to high-temperature metal-alloy shims by flame spraying of ceramic materials. Optionally, a strain-gauge unit can be supplied alone, but ordinarily, it is delivered as part of a system that also includes an integral, weldable-terminal high-temperature cable and a bridge-circuit-completion module at the cool end of the cable (see figure).