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在广阔的工程领域中,如雷达、导航以及导弹的制导、遥测、遥控等,频率测量的准确与否起着非常重要的作用。随着科学与技术的发展,现在已普遍地使用电子计数器进行测频(或测周)。在这种测量方式的误差中,“±1”误差占有重要的比重,降低此误差除了从测试系统上采用频率倍增法、差频周期法以及差频倍增法之外,还可以在不增加任何没备的情况下,采用下述几种人为的方法。
In the vast field of engineering, such as radar, navigation and missile guidance, telemetry, remote control, frequency measurement accuracy or not plays a very important role. With the development of science and technology, electronic counters are commonly used for frequency measurement (or measurement week). In this measurement error, “± 1” error occupies an important proportion, to reduce this error in addition to the test system using the frequency multiplication method, the difference between the frequency method and frequency difference multiplication method, but also without any increase Not prepared the case, the use of the following man-made approach.