The results showed that the resonant frequencies measured by the strain gauge method and the 3 - component dynamometer were exactly the same as those measured by the tap tone method 结果显示两种方法所测得之试材共振频率均与由打音法测得者完全相同，故可用来取代打音法。
2.
Results are given for a series of two - tone inter - modulation distortion measurements . it is shown that a 25 db improvement in the inter - modulation margin can be achieved 实现了一个890 915mhz的功率放大器的前馈线性化试验，其双音法测试结果表明，放大器的线性度提高了约25db 。
