提升风洞测力数据采集系统电磁兼容能力初步研究

A Preliminary Study on Improving EMC Capability for Force Measured Data Acquisition System in Wind Tunnel

摘要:

随着风洞试验技术的不断进步，风洞现场的电磁设备越来越多，电磁干扰对风洞测力试验数据的准确性可靠性带来了挑战。研究风洞测力数据采集系统电磁兼容性问题是有效解决电磁干扰保障测力试验顺利进行的前提，是提高风洞试验精度、改善测量数据质量、提升试验能力的重要手段。文章以某主力风洞测力数据采集系统为研究对象，从电磁干扰途径和自身电磁敏感度两个方面对采集系统进行了电磁兼容分析，并结合分析结果通过采取合理有效的电磁兼容措施，提高了风洞测力数据采集系统抗电磁干扰能力，确保了测力试验数据质量的可靠性和稳定性。

Abstract:

With more application of electromagnetic equipments in wind tunnel, electromagnetic interference has seriously affected the accuracy and reliability of force experiments. The research about electromagnetic compatible of force measured data acquisition system can solve the problems of electromagnetic interference, make tests go smoothly. The force measured data acquisition system of wind tunnel was studied as the research object in the paper. With the help of analyzing the electromagnetic sensitivity of the system and the way of electromagnetic interference, some reasonable steps were taken. In the result, the force measured data acquisition system’s capability of anti- electromagnetic interference was improved, the reliability and stability of the test data were ensured.