论文部分内容阅读
风洞天平的性能在很大程度上决定着空气动力试验的准确性和可靠性。目前通常采用电阻式应变天平进行测量试验,但电阻式应变计的先天劣势使得电阻式应变天平无法满足复杂工作环境的测量要求,所以在传统的六分量杆式应变天平的基础之上,希望有性能更加优越的天平能够取代之,使其不仅具有较高的精度、准度、灵敏度,还具备面对复杂环境的稳定性。近年来,国内外已出现光纤应变计应用在风洞天平方面的研究。光纤传感器具有非常广阔的应用前景,全球范围内对
The performance of wind tunnel balances largely determines the accuracy and reliability of aerodynamic tests. At present, resistive strain gauges are usually used for the measurement test. However, the inherent disadvantages of the resistive strain gauges make the resistive strain gauges unable to meet the measurement requirements of complex working environments. Therefore, based on the traditional six-component strain gauge, More superior performance balance can be replaced, so that it not only has high accuracy, accuracy, sensitivity, but also has the face of complex environment stability. In recent years, studies on the application of optical fiber strain gauges in wind tunnel scales have appeared at home and abroad. Optical fiber sensor has a very broad application prospects, worldwide