近程无线电遥测技术目前被广泛用来测试高速旋转件的动态参数,如温度、应力、扭矩、转速等。由于这项技术取代了传统的集流环,使测试系统的精度和可靠性都有较大的提高,基本满足了动测的需要。但在实际现场应用时,如何选择遥测仪的耦合天线一直没有一定的依据,使用户在天线的调整上浪费了很多的时间。因此,耦合天线的选择方法是在遥测技术应用中需要解决的一个较为重要的问题。 Short-range radio telemetry is now widely used to test dynamic parameters of high-speed rotating parts such as temperature, stress, torque, speed and so on. As the technology to replace the traditional slip ring, the test system accuracy and reliability have greatly improved, and basically meet the needs of dynamic measurements. However, in the actual field application, how to choose a telemeter coupling antenna has not been a certain basis, allowing users to waste a lot of time on the antenna adjustment. Therefore, the choice of coupling antenna is a more important issue to be solved in the application of telemetry.