Mechanical quantity sensor element

Details Mechanical quantity sensor element Mechanical quantity sensor element

1987-01-08

1988-11-15

Myracle, Jerry W.

Measuring and testing

Dynamometers

Responsive to torque

73DIG2, 324209, G01L 112

Patent

active

047840030

ABSTRACT:
A mechanical quantity sensor element making use of a stress-magneto effect of noncrystalline magnetic alloy. This mechanical quantity sensor element is manufactured by coupling a piece of noncrystalline magnetic alloy having positive magnetostriction with another material such as, for example, thermo-setting resin at a temperature exceeding an operating temperature range of the mechanical quantity sensor element, and then cooling them to the operating temperature range. Due to a difference in a coefficient of thermal expansion between the piece and the material, compression strain is preliminarily given to the noncrystalline magnetic alloy piece, and the mechanical quantity sensor element has an excellent linearity and a wide detectable range for mechanical quantities.

REFERENCES:
patent: 3313675 (1967-04-01), Petropoulos et al.
patent: 4627298 (1986-12-01), Sahashi et al.
patent: 4631796 (1986-12-01), Inomata et al.
Sasada, I. et al., A New Method . . . Amorphous Ribbons, IEEE Transactions, vol. Mag.-19, No. 5, Sep. 1983, pp. 2148-2150.

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