基于雙恒流源法的高精度應變測量技術

提出了一種新穎的基于雙恒流源法六端比例測量原理的應變測量技術，介紹了其測量原理及誤差分析和校準技術，實現了高精度應變測量。給出了利用該測量原理設計的多通道應變儀測試結果。實驗室測試及在某大型離心載荷試驗中運行表明，該應變儀具有較高的測量精度、穩定性、抗干擾性和可靠性，其設計原理和方法對于工程設計與應用具有一定的參考價值。

In this paper, a novel high-accuracy strain measuring technology based on the method of dual invariable-current, six end connecting and proportional measurement is proposed. The measurement principles, measurement errors analysis and self-calibration technology are described in detail. Lab test data by self-designed multi-channel strain measuring instrument based on the principles and technology is illustrated. The lab test and practical centrifugal load experimentation indicate that the measurement principles and technology are right, and the accuracy, stability, anti-interference and reliability are excellent. The principles and technology for stain measurement are worthwhile in practical engineering applications.