Accession Number : AD0693418

Title :   TESTS AND CALIBRATION OF THE STATIC ELECTRIC RESISTANCE STRAIN GAGE,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Tsao,Sheng-an

Report Date : 17 JUN 1969

Pagination or Media Count : 27

Abstract : This article points out problems existing in the techniques of authenticating an electric resistance strain gage. After a brief explanation of technical requirements of the electric resistance strain gage in static strain measurements, the test and calibration methods of the double-bridge zero-reading type electric resistance strain gage are introduced. Gage calibration includes three parts, namely, structural inspections, operating performance tests, and calibration. The special feature of the proposed method is that the standard delta R/R used in the calibration is not the resistance change produced by strains in resistance strain strips, but is produced by an electric method; therefore, accuracy is high. Design and construction data for a strain gage calibrator are also given. The calibration methods and calibrator proposed have been proved to have high accuracy by practical application and guarantee that electric resistance strain gage error after calibration will be less than plus or minus 1%. (Author)

Descriptors :   (*STRAIN GAGES, CALIBRATION), TEST METHODS, TEST SETS, GALVANOMETERS, ELECTRIC BRIDGES, ELECTRICAL RESISTANCE, RELIABILITY(ELECTRONICS), INSTRUCTION MANUALS, INSTRUMENT DIALS, SENSITIVITY, ACCURACY, ERRORS, CORRECTIONS, SPECIAL FUNCTIONS(MATHEMATICAL), DESIGN, STRAIN(MECHANICS), CHINA

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE