公开(公告)号：US3680841A

公开(公告)日：1972-08-01

申请号：US3680841D

申请日：1970-06-23

申请人： YOKOGAWA ELECTRIC WORKS LTD

发明人： YAGI EIICHI ,  KOJIMA KENKO ,  IKEDA HISAYUKI ,  YAUCHI SHIRO ,  SHIMIZU TSUTOMU ,  TAMATE TOKUTARO ,  IKEGAWA HIROYUKI

IPC分类号： G01N27/07 ,  B08B3/12 ,  G01N27/00 ,  G01N27/06 ,  G01N27/28 ,  G01N27/38 ,  B01F11/02 ,  G01N29/00

CPC分类号： B08B3/12 ,  G01N27/06 ,  G01N27/28 ,  G01N27/38 ,  G01N2291/02863

摘要： A liquid characteristic measuring instrument having a container enclosing a liquid to be measured, an ultrasonic vibrator, and means for transmitting ultrasonic waves from the vibrator to the liquid in the container, in which precipitation of scale of the liquid being measured is prevented by the ultrasonic waves to ensure accurate measurement.

摘要翻译： 一种液体特性测量仪器，其具有容纳被测量液体的容器，超声波振动器，以及用于将超声波从振动器传递到容器内的液体的装置，其中通过超声波 波浪确保准确的测量。

公开(公告)号：US3677925A

公开(公告)日：1972-07-18

申请号：US3677925D

申请日：1970-07-22

申请人： YOKOGAWA ELECTRIC WORKS LTD

发明人： TAMATE TOKUTARO ,  IKEDA HISAYUKI ,  YAGI EIICHI

IPC分类号： G01N27/36

CPC分类号： G01N27/36

摘要： A GLASS ELECTRODE HAVING SUPPORT TUBE MEANS, AN INNER ELECTRODE DISPOSED THEREIN, A CAP FORMED OF AN INSULATING MATERIAL AND FIXED ON THE TOP OF THE SUPPORT TUBE MEANS, A GLASS ELECTRODE TERMINAL PROVIDED ON THE CAP AND CONNECTED WITH THE INNER ELECTRODE, A GUARD RING FIXED ON THE PERIPHERY OF THE CAP AND A GUARD RING TERMINAL, IN WHICH A NEGATIVE FEEDBACK VOLTAGE FROM A NEGATIVE FEEDBACK AMPLIFIER IS IMPRESSED TO THE GUARD TERMINAL, THE NEGATIVE FEEDBACK AMPLIFIER AMPLIFYING A SIGNAL DERIVED AT THE GLASS ELECTRODE TERMINAL.

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