Accession Number : AD0695329

Title :   A STUDY OF THE PERFORMANCE OF SILICON STRAIN GAGES ON ALTERNATING CURRENT UNDER STATIC AND DYNAMIC CONDITIONS,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Sandulov,A. V. ; Pelenskii,R. A. ; Maryamova,I. I. ; Zaganyach,Yu. N.

Report Date : 30 JAN 1969

Pagination or Media Count : 10

Abstract : The operation of a strain gage based on silicon strain transducers and operating under a-c static or a-c dynamic conditions is described. The transducers used are p-type silicon crystals with either gold or platinum leads soldered to the crystal sides to obtain ohmic contacts. In order to obtain a linear dependence of strain gage output signal on changes in transducer resistance caused by strain, a difference circuit is used for the strain gage. The strain gage output is expressed by an equation in the text. The strain gage was tested under both static and dynamic operating conditions; the strain sensitivity of the silicon transducers was found to be independent of frequency in the 50Hz--50kHz range. A better linear dependence of the output signal on the transducer resistance change was obtained by using the difference circuit described than could have been obtained if a d-c bridge circuit has been used.

Descriptors :   (*SEMICONDUCTOR DEVICES, STRAIN GAGES), (*ALTERNATING CURRENT, STRAIN GAGES), (*STRAIN GAGES, RELIABILITY(ELECTRONICS)), WHISKERS(CRYSTALS), SILICON, PIEZOELECTRIC TRANSDUCERS, DIFFERENTIATING CIRCUITS, ELECTRICAL RESISTANCE, LINEAR SYSTEMS, LOADS(FORCES), RESPONSE, ELECTRIC CONNECTORS, GOLD, PLATINUM, USSR

Subject Categories : Electrical and Electronic Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE