Constant-current type static resistance strain gauge

The invention relates to a constant current supply and electric analog switch circuit, which are positioned on the input end of bridge circuit. It adopts constant current stimulating electric switching technique to exclude the resistance of electric analog switch circuit out of the variation of brid...

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Bibliographische Detailangaben
1. Verfasser:	SHOUYU DU
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:	The invention relates to a constant current supply and electric analog switch circuit, which are positioned on the input end of bridge circuit. It adopts constant current stimulating electric switching technique to exclude the resistance of electric analog switch circuit out of the variation of bridge measuring circuit, so that the output voltage of straining-meter is relative to stimulating circuit, straining resistance, straining sheet sensitivity index and straining value and non-relative to wire resistance and analog switch resistance. It is suit for measuring constructing stress in the field of mechanism and building project.