Tension Calibration Technique for Pre-tightened Wire Rope with Both Ends Fixed Measured by Tensiometer

Abstract

The tension precision of pre-tightened wire rope with both ends fixed (PWRBEF) was very important for closed loop configuration (CCL) module of the satellite solar array. A high-precision, high-reliability and high-efficiency tension calibration technology for PWRBEF measured by tensiometer was presented in this paper. With the technique, a portable tension calibration system was established to carry on the calibration experiments, which can decouple the measurement error caused by all factors. The single or multiple factors relationship were analysed to eliminate the measurement error of PWRBEF. Depending on the experiments results, the calibration database was built to test and adjust the tension of the PWRBEF in the CCL module. The high compliance and consistency between the adjustment results of tension and the design requirements had been achieved. The deployment synchronization and deployment reliability of the solar array were effectively ensured.