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Calibration of pull wire displacement sensor under variable angle working condition

CUI Yanmei;LI Tao;ZHOU Ning;OUYANG Haining;GAO Zhanpeng;TANG Wei;Changcheng Institute of Metrology & Measurement;Aircraft Strength Research Insititute;  
In order to solve the measurement problem caused by the two-dimensional angle deflection of the pull wire sensor in the static strength deformation measurement test, the turntable provided the standard deflection angle, and the method of orthogonal installation test broke through the calibration technology of the pull wire sensor under the variable angle working condition, and the sensitivity coefficient calibration method based on the orthogonal installation proposed. The calibration device constructed, and through the synthesis of the sensitivity coefficients in two orthogonal directions, The establishment method of the orthogonal error model of the pull wire sensor proposed, which finally provided a scheme for the field error measurement under the variable angle working condition, realized the rapid evaluation of the deformation measurement in the static strength test, and the exploration of the calibration method of the pull wire sensor, promotes its application in other testing fields.
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