公开(公告)号：US09030188B2

公开(公告)日：2015-05-12

申请号：US13420303

申请日：2012-03-14

申请人： Edward Hopsecger ,  David R. Goodnetter

发明人： Edward Hopsecger ,  David R. Goodnetter

IPC分类号： G01R23/02 ,  G01R23/10

CPC分类号： G01R23/10

摘要： A frequency monitor provides high resolution frequency monitoring over a range of input signal frequencies by measuring the time period of the signal to produce a raw frequency value and then filtering the raw frequency value with a low pass filter to remove an error component caused by quantization effects at high input signal frequencies. The system automatically accommodates changes in the input frequency eliminating a need for manual adjustment of the system based on anticipated measured frequencies.

摘要翻译： 频率监视器通过测量信号的时间周期来产生原始频率值，然后用低通滤波器对原始频率值进行滤波，从而在一系列输入信号频率上提供高分辨率的频率监测，以消除由量化效应引起的误差分量 在高输入信号频率。 系统自动适应输入频率的变化，无需根据预期的测量频率对系统进行手动调整。

公开(公告)号：US20130241531A1

公开(公告)日：2013-09-19

申请号：US13420303

申请日：2012-03-14

申请人： Edward Hopsecger ,  David R. Goodnetter

发明人： Edward Hopsecger ,  David R. Goodnetter

IPC分类号： G01R23/02

CPC分类号： G01R23/10

摘要： A frequency monitor provides high resolution frequency monitoring over a range of input signal frequencies by measuring the time period of the signal to produce a raw frequency value and then filtering the raw frequency value with a low pass filter to remove an error component caused by quantization effects at high input signal frequencies. The system automatically accommodates changes in the input frequency eliminating a need for manual adjustment of the system based on anticipated measured frequencies.

摘要翻译： 频率监视器通过测量信号的时间周期来产生原始频率值，然后用低通滤波器对原始频率值进行滤波，从而在一系列输入信号频率上提供高分辨率的频率监测，以消除由量化效应引起的误差分量 在高输入信号频率。 系统自动适应输入频率的变化，无需根据预期的测量频率对系统进行手动调整。