JPS60213822A - 液位計測装置 - Google Patents

液位計測装置

Info

Publication number
JPS60213822A
JPS60213822A JP59069858A JP6985884A JPS60213822A JP S60213822 A JPS60213822 A JP S60213822A JP 59069858 A JP59069858 A JP 59069858A JP 6985884 A JP6985884 A JP 6985884A JP S60213822 A JPS60213822 A JP S60213822A
Authority
JP
Japan
Prior art keywords
circuit
liquid level
electrodes
terminal
circuits
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP59069858A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0246885B2 (zh
Inventor
Yoshihiko Sunakawa
砂川　慶彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Keiso Co Ltd
Original Assignee
Tokyo Keiso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Keiso Co Ltd filed Critical Tokyo Keiso Co Ltd
Priority to JP59069858A priority Critical patent/JPS60213822A/ja
Publication of JPS60213822A publication Critical patent/JPS60213822A/ja
Publication of JPH0246885B2 publication Critical patent/JPH0246885B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
JP59069858A 1984-04-07 1984-04-07 液位計測装置 Granted JPS60213822A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59069858A JPS60213822A (ja) 1984-04-07 1984-04-07 液位計測装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59069858A JPS60213822A (ja) 1984-04-07 1984-04-07 液位計測装置

Publications (2)

Publication Number Publication Date
JPS60213822A true JPS60213822A (ja) 1985-10-26
JPH0246885B2 JPH0246885B2 (zh) 1990-10-17

Family

ID=13414922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59069858A Granted JPS60213822A (ja) 1984-04-07 1984-04-07 液位計測装置

Country Status (1)

Country Link
JP (1) JPS60213822A (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0587728A1 (en) * 1991-05-29 1994-03-23 Lee/Maatuk Engineering, Inc. Digital level sensing probe system
EP1744132A1 (en) * 2005-07-11 2007-01-17 Siemens Milltronics Process Instruments Inc. Capacitive level sensor with a plurality of segments comprising each a capacitor and a circuit
CN105572479A (zh) * 2015-11-27 2016-05-11 贵州铜仁高新区科创互联生产力促进中心 可叠加扩展的用于电容容量测量的电路模块、扩展方便的液位高度检测电路
WO2017189009A1 (en) 2016-04-29 2017-11-02 Hewlett-Packard Development Company, L.P. Printing apparatus and methods for detecting fluid levels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007218740A (ja) * 2006-02-16 2007-08-30 Taiheiyo Cement Corp 液面センサ装置、コンクリート製品、及び、浸水状況検知システム

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0587728A1 (en) * 1991-05-29 1994-03-23 Lee/Maatuk Engineering, Inc. Digital level sensing probe system
EP0587728A4 (zh) * 1991-05-29 1994-04-27 Lee/Maatuk Engineering, Inc.
EP1744132A1 (en) * 2005-07-11 2007-01-17 Siemens Milltronics Process Instruments Inc. Capacitive level sensor with a plurality of segments comprising each a capacitor and a circuit
WO2007006788A1 (en) * 2005-07-11 2007-01-18 Siemens Milltronics Process Instruments, Inc. Capacitive level sensor with a plurality of segments comprising each a capacitor and a circuit
CN105572479A (zh) * 2015-11-27 2016-05-11 贵州铜仁高新区科创互联生产力促进中心 可叠加扩展的用于电容容量测量的电路模块、扩展方便的液位高度检测电路
WO2017189009A1 (en) 2016-04-29 2017-11-02 Hewlett-Packard Development Company, L.P. Printing apparatus and methods for detecting fluid levels
CN109070617A (zh) * 2016-04-29 2018-12-21 惠普发展公司，有限责任合伙企业 用于检测液位的打印装置和方法
US20190126631A1 (en) * 2016-04-29 2019-05-02 Hewlett-Packard Development Company, L.P. Printing apparatus and methods for detecting fluid levels
EP3448688A4 (en) * 2016-04-29 2019-12-25 Hewlett-Packard Development Company, L.P. PRINTING APPARATUS AND METHODS FOR DETECTING FLUID LEVELS
US10926548B2 (en) 2016-04-29 2021-02-23 Hewlett-Packard Development Company, L.P. Printing apparatus and methods for detecting fluid levels

Also Published As

Publication number Publication date
JPH0246885B2 (zh) 1990-10-17

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term