可编程动态倍频器在大齿轮在机测量中的应用

The Application of Programmable Dynamic Frequency Doubler on Large Gear Testing in Situ

为解决大齿轮在机测量过程中采用比例驱动跟踪测量技术时转角脉冲当量过大的问题，研究开发了可编程动态倍频器。该倍频器的倍频范围为１～９９９，倍频值可直接由软件选择；该倍频器在输入脉冲宽度变化时能很好地动态跟随，倍频数绝对准确，倍频后的脉冲宽度均匀，完全满足了大齿轮在机测量的要求。

To solve the problem of exaggerated angle pulse in the ratio driving and tracing measuring technique in testing in situ for large gears, the programmable dynamic frequency doubler has been developed. The range of double frequency is from 1 to 999. The double frequency number is selected directly by software. When input pulse width of the frequency doubler changes, output pulse can well trace. The frequency doubler fully meets the needs of testing in situ for large gears.