ELECTROMECHANICAL DEFLECTION SENSING DEVICE
First Claim
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2. The sensing device of claim 1, wherein said strain gage means comprises a bar of piezoresistive material.
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Abstract
A sensing device including an elongated beam having an outer surface of revolution and including a generally conical medial portion whose sides taper toward a point disposed on the beam'"'"''"'"'s longitudinal axis and located within an adjacent end portion in the beam. An elongated ceramic-encapsulated piezoresistive element is bonded through such encapsulating material to the outside of the beam'"'"''"'"'s medial portion, and is disposed in a common plane with the beam'"'"''"'"'s longitudinal axis.
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4 Claims
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2. The sensing device of claim 1, wherein said strain gage means comprises a bar of piezoresistive material.
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3. The sensing device of claim 1, wherein said ceramic medium comprises glass.
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4. The sensing device of claim 1, wherein said tapered region includes a zone on its outer surface having a surface finish with an index no greater than ten microinches (rms), said electrical strain gage means is sized to fit within the boundaries of said zone, and said ceramic bonding medium completely surrounds said strain gage means.
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