Transducer for dynamometer

Details Transducer for dynamometer Transducer for dynamometer

1982-09-27

1984-10-09

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to force

338 5, G01L 122

Patent

active

044754094

ABSTRACT:
The measuring element for a dynamometer consists of a band-shaped substrate of amorphous metal. The band-shaped substrate has one or two necked-down sections on which strain gauge resistors are arranged in the direction of load application. The resistor or resistors may be connected in a bridge circuit together with reference resistors. The load-dependent elongation of the resistors unbalances the bridge circuit to create the desired output measuring signal. Use of a suitable alloy of amorphous metal results in good mechanical characteristic of the measuring element. Specifically, there is a high resistance to creep and to hysteresis effects, while relatively high loads may be measured. Further, such a measuring element is also immune to temperature variations.

REFERENCES:
patent: 3602041 (1971-08-01), Weinert
patent: 3780817 (1973-12-01), Videon
patent: 4140010 (1979-02-01), Kulpmann et al.
patent: 4166384 (1979-09-01), Matsuda et al.
patent: 4298382 (1981-11-01), Stempin et al.
patent: 4331035 (1982-05-01), Eisele et al.
patent: 4381506 (1983-04-01), Linn et al.

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