Transducers employing gap-bridging shim members

Details Transducers employing gap-bridging shim members Transducers employing gap-bridging shim members

1975-10-22

1976-11-30

Gill, James J.

Electrical resistors

Resistance value responsive to a condition

Gravity stabilized or inertia actuator

338 6, H01L 4110, G01P 1512

Patent

active

039952479

ABSTRACT:
A transducer or accelerometer employs at least one slot or gap located in a seismic mass of a block-like configuration. The relative displacement of the opposing faces of the block, due to the slot, is monitored by means of a shim or similar metallic member, which spans the slot. Secured to the shim is a piezoresistive strain gage whose size and dimensions become relatively independent of the dimension of the slot, therefore enabling accurate and reliable strain detection without attendant temperature problems.

REFERENCES:
patent: 3084300 (1963-04-01), Sanchez
patent: 3102420 (1963-09-01), Mason
patent: 3351880 (1967-11-01), Wilner
patent: 3363471 (1968-01-01), Lovelace et al.
patent: 3636774 (1972-01-01), Allison

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