Self-Temperature-Compensated Ceramic Strain Gauges

Ceramic static-strain gauges capable of generating mechanical-strain signals much larger than spurious thermal signals have been invented. These gauges are intended for use at temperatures from room temperature to 1,250 °C. Heretofore, external circuits have been used to provide temperature compensation for (that is, to correct for or suppress the spurious signals of) strain gauges. No such external temperature-compensation circuits are needed for temperature compensation of the present developmental strain gauges.