基本信息
摘要：1,236,385. Semi-conductor strain gauges. PLESSEY CO. Ltd. 13 Sept., 1968 [14 Sept., 1967], No.42027/67. Heading H1K. A semi-conductor substrate providing the sensitive element of a strain gauge also has as an integral part thereof an integrated circuit for amplifying the output from the element or for indicating whether the strain on the element is above or below a predetermined level. In the former case the circuit comprises an amplifier using MOS or bipolar transistors and in the latter case it comprises a Schmitt trigger circuit. The substrate may be of Si and may be selfsupporting or mounted on a fibreglass support. The sensitive element may comprise the entire substrate or may consist of a diffused resistor region therein.
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