Dynamic Testing Method for Yarn TensionAhshmct Various dynamic test devices of tam tension are described comprehensively and a new type of testing method for ring spindle spurning tensionis proposed. The yarn tension is dynamic detected and controled in real time场adopting transducer technology and computer system. The method ofers the path to process automation and enhancemnet of quality of products.Keywords Rings pindles pine Yam tension Test Transducer