绪言近几年来,在航空工业的发展中,已经从实践中认识到航空发动机强度的研究和测试是个薄弱环节,其中以旋转部件的测试技术更为突出,目前正在有计划地开展这方面的工作。过去曾采用水银引电器在旋转部件上测量静动应力,从中获得大量的有价值的数据,为新型发动机的研究提供了可靠的依据。但因水银引电器的使用寿命太短,工作温度较低,通道数不多,且对环境污染严重,危害操作人员的健康,致使该技术的推广使用受到 INTRODUCTION In recent years, in the development of the aviation industry, it has been recognized in practice that the study and testing of the strength of aeroengines is a weak link. Among them, testing techniques for rotating components are more prominent and work is being planned in this area . In the past, hydrostatic mercury gauges were used to measure the hydrostatic stress on rotating parts, and a great deal of valuable data was obtained from them, which provided a reliable basis for the research on new engines. However, due to the service life of the mercury injector is too short, the working temperature is low, the number of channels, and serious environmental pollution, endangering the health of operators, resulting in the promotion of the use of the technology by