公开(公告)号：US5000041A

公开(公告)日：1991-03-19

申请号：US350036

申请日：1989-05-10

申请人： Yoshikazu Miyamoto ,  Kimio Toriyabe ,  Kazuo Tsuge ,  Hideaki Ikeda ,  Teruhisa Kojima ,  Masayuki Komaki ,  Yutaka Morita ,  Takatoshi Murakami ,  Yasuo Sato ,  Yasuo Koketu

发明人： Yoshikazu Miyamoto ,  Kimio Toriyabe ,  Kazuo Tsuge ,  Hideaki Ikeda ,  Teruhisa Kojima ,  Masayuki Komaki ,  Yutaka Morita ,  Takatoshi Murakami ,  Yasuo Sato ,  Yasuo Koketu

IPC分类号： G01F1/10 ,  G01F1/115 ,  G01F1/12 ,  G01F15/02 ,  G01F25/00

CPC分类号： G01F1/125 ,  G01F1/10 ,  G01F1/115

摘要： Disclosed is a control apparatus for correcting the measurement of flow rates for use with a turbine-type flow meter in which the rotation of a turbine rotating in response to the flow velocity of fluid to be measured is detected to produce pulses which are, in turn, integrated to measure the flow rate of the fluid. The apparatus operates to obtain a value representing the rate of reduction in the flow rate from the pulse cycle in order to detect a first time at which the reduction rate increases above a first predetermined value and a second time at which the reduction rate decreases below a second predetermined value, produce a correction value on the basis of the pulse cycle at the second time and the time lag between the first and second times, and integrate pulses other than those generated in the period of time between the first and second times, adding the correction value from the correction value producing means to the integrated value.

摘要翻译： 公开了一种用于校正与涡轮型流量计一起使用的流量的测量的控制装置，其中响应于待测流体的流速而旋转的涡轮机的旋转产生脉冲， ，用于测量流体的流速。 该装置用于获得表示来自脉冲周期的流量减小速率的值，以便检测减速率增加到高于第一预定值的第一时间和减少率降低到低于第一时间的第二时间 第二预定值，基于第二时间的脉冲周期和第一次和第二次之间的时间滞后产生校正值，并且将在第一次和第二次之间的时间段内生成的脉冲之外的脉冲积分， 从校正值产生装置的校正值到积分值。