JPS57135317A - Level gauge - Google Patents

Level gauge

Info

Publication number
JPS57135317A
JPS57135317A JP2057781A JP2057781A JPS57135317A JP S57135317 A JPS57135317 A JP S57135317A JP 2057781 A JP2057781 A JP 2057781A JP 2057781 A JP2057781 A JP 2057781A JP S57135317 A JPS57135317 A JP S57135317A
Authority
JP
Japan
Prior art keywords
liquid level
float
varied
level gauge
electrode
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
JP2057781A
Other languages
Japanese (ja)
Other versions
JPS6260651B2 (en
Inventor
Kunihiko Watanabe
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP2057781A priority Critical patent/JPS57135317A/en
Publication of JPS57135317A publication Critical patent/JPS57135317A/en
Publication of JPS6260651B2 publication Critical patent/JPS6260651B2/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
    • G01F23/30—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 floats
    • G01F23/64—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 floats of the free float type without mechanical transmission elements
    • G01F23/68—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means
    • G01F23/686—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 floats of the free float type without mechanical transmission elements using electrically actuated indicating means using opto-electrically actuated indicating means

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE:To prevent a mulfunction of a float indicating a liquid level, by applying voltage to an electrode and the float provided on the upper part of a level gauge, and detecting the height of a liquid level by use of an electrooptic crystal. CONSTITUTION:When a liquid level of a tank 1 is varied, a liquid level 6 in a level gauge is varied, in accordance with which a float 7 moves up and down. In this case, when voltage is applied to an electrode 11 and a float 7, an electric field generated between them is varied, this electric field variation is detected by an electrooptic crystal 14, and a detecting signal is transferred to a liquid level indicator 16 by an optical fiber 15. In this way, height of a liquid level is detected.
JP2057781A 1981-02-13 1981-02-13 Level gauge Granted JPS57135317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2057781A JPS57135317A (en) 1981-02-13 1981-02-13 Level gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2057781A JPS57135317A (en) 1981-02-13 1981-02-13 Level gauge

Publications (2)

Publication Number Publication Date
JPS57135317A true JPS57135317A (en) 1982-08-20
JPS6260651B2 JPS6260651B2 (en) 1987-12-17

Family

ID=12031054

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2057781A Granted JPS57135317A (en) 1981-02-13 1981-02-13 Level gauge

Country Status (1)

Country Link
JP (1) JPS57135317A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997027061A1 (en) * 1996-01-22 1997-07-31 Canon Kabushiki Kaisha Method and device for determining the quantity of product present in a reservoir, notably that of ink in an image forming device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997027061A1 (en) * 1996-01-22 1997-07-31 Canon Kabushiki Kaisha Method and device for determining the quantity of product present in a reservoir, notably that of ink in an image forming device
US6254212B1 (en) 1996-01-22 2001-07-03 Canon Kabushiki Kaisha Method and device for determining the quantity of product present in a reservoir, notably that of ink present in an image forming device

Also Published As

Publication number Publication date
JPS6260651B2 (en) 1987-12-17

Similar Documents

Publication Publication Date Title
DE3573160D1 (en) Device for detecting the level of a liquid contained in a tank
IT1085277B (en) INDICATOR DEVICE TO DETECT THE LEVEL OF LIQUIDS IN LIQUID TANKS
IT7948966A0 (en) APPARATUS AND PROCEDURE FOR DETERMINING THE LEVEL OF A LIQUID IN A TANK
ES549339A0 (en) IMPROVEMENTS IN MEASUREMENT PROBES OF THE LEVEL OF A LIQUID OF A TANK
GB2006959B (en) Apparatus for detecting the level of liquid in a tank
GB2089516B (en) Liquid container having electrode plates to detect liquid level by measuring capacitance
IT8048755A0 (en) FLOAT FOR LIQUID LEVEL MEASUREMENT DEVICES IN TANKS
JPS57135317A (en) Level gauge
IT1115209B (en) MINIMUM LEVEL INDICATOR FOR LIQUID TANKS IN VEHICLES
MX151354A (en) IMPROVEMENTS IN LIQUID LEVEL ELECTRICAL SIGNAL TRANSMITTER IN VEHICLE FUEL TANKS
JPS55143424A (en) Checking method for liquid leakage of porcelain container
JPS57161601A (en) Scale
IT8867028A0 (en) CONTROL DEVICE FOR AN INSTRUMENT FOR INDICATING THE LEVEL OF A LIQUID IN A TANK
JPS5635022A (en) Optical fiber liquid level indicator
KR900010359A (en) Device with liquid level indicator
BR8102580A (en) LIQUID LEVEL MONITORING INDICATOR AND SET
GB2029006B (en) Displacement sensing device and liquid gas tank gas level indicating system
IT8648564A0 (en) DEVICE FOR MEASURING AND INDICATION OF THE FILLING LEVEL OF THE FUEL TANK OF A VEHICLE
IT1164787B (en) DEVICE FOR CHECKING THE LEVEL OF A LIQUID IN A TANK
AR231589A1 (en) DETECTION DEVICE OF THE LEVEL OF A LIQUID IN A TANK
JPS52141264A (en) Float type liquid level gauge structure
IT1097369B (en) LIQUID LEVEL INDICATOR CONTAINED IN A TANK
JPS5317357A (en) Analog display device
IT8768125A0 (en) CONTROL DEVICE FOR AN INSTRUMENT FOR INDICATING THE LEVEL OF A LIQUID IN A TANK
JPS5379575A (en) Electrode for electrostatic liquid level meter