Regulatable creep strain gauges and process for obtaining such gauges

A strain gauge for compensating the creep of a support and a process for obtaining a strain gauge. The gauge is bonded to a support and includes a piezoresistive pattern etched on one face of a flexible film. A layer of a material subject to relaxation is deposited on the other face of the film. The...

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Bibliographische Detailangaben
Hauptverfasser:	DESTANNES, LOUIS
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING MEASURING ANGLES MEASURING AREAS MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A strain gauge for compensating the creep of a support and a process for obtaining a strain gauge. The gauge is bonded to a support and includes a piezoresistive pattern etched on one face of a flexible film. A layer of a material subject to relaxation is deposited on the other face of the film. The relaxation layer is bonded to a test piece of the same material as the support. A constant force is applied for producing a creep on the test piece and the resistance of gauge as a function of time is measured. The thickness of the relaxation layer is adjusted to cancel out the evolution of the resistance of the gauge.