发明名称 |
CORPUSCLE COUNTER |
摘要 |
PURPOSE:To reduce the power consumption of laser tube and to prolong its life by switching a laser beam emission device from a continuous operation state to an intermittent operation state automatically and reversibly when the variation rate of a measured value of corpuscle concentration decreases below a constant value. CONSTITUTION:A power source control circuit part C for a laser carries out basically the sequence of a continuous measurement mode wherein the laser beam emission device L is operated continuously. The variation rate of the measured value of the corpuscle concentration fed back from a measurement (arithmetic) circuit part D is detected by a differential arithmetic or sequential subtracting means at all times and when the variation rate is larger than the constant value, the laser beam emission device L is put in continuous operation to perform measurement continuously; when the variation rate decreases below the constant value, the laser beam emission device L is operated intermittently to perform automatic control so that the measurement is performed intermittently.
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申请公布号 |
JPS63290944(A) |
申请公布日期 |
1988.11.28 |
申请号 |
JP19870127434 |
申请日期 |
1987.05.23 |
申请人 |
HORIBA LTD;KURITA WATER IND LTD |
发明人 |
AKIYAMA SHIGEYUKI;SUZUKI RIICHIRO;TAKAMATSU SHUJI;SHIGEMI KOKI;KUMAGAI TOSHIO |
分类号 |
G01N15/06;G01N15/14;G01N21/49 |
主分类号 |
G01N15/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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