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1. 发明授权

US5440602A Method and device for counting clock pulses for measuring period length 失效
标题翻译：用于计算周期长度的时钟脉冲计数的方法和装置
公开(公告)号：US5440602A
公开(公告)日：1995-08-08
申请号：US234155
申请日：1994-04-28
申请人： Helmut Gimmler , Ulrich Nester , Dinh D. Tu
发明人： Helmut Gimmler , Ulrich Nester , Dinh D. Tu
IPC分类号： G01R23/02 , G01R23/10 , G01F15/00
CPC分类号： G01R23/10 , G01R23/02
摘要： Method and device for counting clock pulses for the purpose of determining period length works in accordance with an absolute time measuring principle, provides at least a single main counter which runs uninterruptedly from the start of measurement to the end of measurement and a channel counter for each of a number n of measuring channels. By stopping a channel counter at the associated measurement period end and reading out the counter reading thereof as well as that of a supplementary upper main counter part which contains the higher-order count positions, a determination is made of the total time elapsed from the start of measurement up to the respective detected period end, and thereafter the target period lengths are determined by forming the difference of successive count values. The invention can be used, for example, for the high-precision measurement of the speed of a system rotating about an axis.
摘要翻译：用于计算时钟脉冲的方法和装置，用于根据绝对时间测量原理确定周期长度工作，提供至少一个从测量开始到测量结束不间断运行的主计数器，以及每个测量的通道计数器的n个测量通道。通过在相关联的测量周期结束时停止通道计数器并读出其计数器读数以及包含高位计数位置的辅助上主计数器部件的计数器读数，确定从开始起经过的总时间的测量直到相应的检测周期结束，然后通过形成连续计数值的差来确定目标周期长度。本发明可以用于例如围绕轴线旋转的系统的速度的高精度测量。

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