HIGH-TEMPERATURE METAL OXIDE STRAIN GAUGE Russian patent published in 2023 - IPC G01B7/16 

FIELD: measuring technology.

SUBSTANCE: invention relates namely to high-temperature strain gauges used as sensitive elements in the design of sensors used to measure the values of alternating mechanical stresses and strains. The technical result is the creation of a strain gauge design that eliminates the need to place intermediate elements that distort the pattern of deformations between the strain gauge element and the surface of the test object, and ensures the formation of strain gauge elements on complex surfaces and undercuts due to synthesis on the surface of the test object, by the method of plasma electrolytic processing. The high-temperature strain gauge contains strain-sensitive and dielectric films synthesized in a single polycrystalline layer of metal oxide ceramics, including intermetallic compounds, made without the formation of a physical surface and an interface based on valve metals and their alloys, forming a deformable metal surface of the test object.

EFFECT: creation of a strain gauge design that eliminates the need to place intermediate elements that distort the pattern of deformations between the strain gauge element and the surface of the test object, and ensures the formation of strain gauge elements on complex surfaces and undercuts due to synthesis on the surface of the test object, by the method of plasma electrolytic processing.

1 cl, 1 dwg