发明名称 Radio-frequency tuned-circuit microdisplacement transducer
摘要 An inductance-capacitance loop defines a resonant circuit and is arranged in a member subject to stress. Strains resulting from the stress vary the inductance or capacitance of the circuit, and its resonant frequency. A dip meter is used to detect the resonant frequency and thus provides a reading indicative of the stress in the member.
申请公布号 US4114428(A) 申请公布日期 1978.09.19
申请号 US19760726140 申请日期 1976.09.24
申请人 POPENOE, CHARLES H. 发明人 POPENOE, CHARLES H.
分类号 G01B7/16;G01D5/241;G01D5/243;G01L1/14;G01L5/24;(IPC1-7):G01L5/00 主分类号 G01B7/16
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