[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5779412A - Liquid level indicator - Google Patents

Liquid level indicator

Info

Publication number
JPS5779412A
JPS5779412A JP15627680A JP15627680A JPS5779412A JP S5779412 A JPS5779412 A JP S5779412A JP 15627680 A JP15627680 A JP 15627680A JP 15627680 A JP15627680 A JP 15627680A JP S5779412 A JPS5779412 A JP S5779412A
Authority
JP
Japan
Prior art keywords
liquid
change
panel
emitting elements
light emitting
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.)
Pending
Application number
JP15627680A
Other languages
English (en)
Inventor
Yukihisa Oda
Takeo Hara
Hiroaki Fukuda
Shigeharu Kita
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP15627680A priority Critical patent/JPS5779412A/ja
Publication of JPS5779412A publication Critical patent/JPS5779412A/ja
Pending 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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)
JP15627680A 1980-11-05 1980-11-05 Liquid level indicator Pending JPS5779412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15627680A JPS5779412A (en) 1980-11-05 1980-11-05 Liquid level indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15627680A JPS5779412A (en) 1980-11-05 1980-11-05 Liquid level indicator

Publications (1)

Publication Number Publication Date
JPS5779412A true JPS5779412A (en) 1982-05-18

Family

ID=15624267

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15627680A Pending JPS5779412A (en) 1980-11-05 1980-11-05 Liquid level indicator

Country Status (1)

Country Link
JP (1) JPS5779412A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5950487A (en) * 1996-09-20 1999-09-14 Vista Research, Inc. Gauge for measuring liquid levels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5950487A (en) * 1996-09-20 1999-09-14 Vista Research, Inc. Gauge for measuring liquid levels

Similar Documents

Publication Publication Date Title
ES282970U (es) Cubeta para la determinacion de compuestos quimicos en liquidos por evaluacion fotometrica espectral
DE69005245D1 (de) Mikrowellen-füllstandsmesser.
FR2487510B1 (fr) Indicateur de niveau de liquide
JPS6413417A (en) Optical sensor
BE847950A (fr) Dispositif indicateur a diodes emettant de la lumiere pour clavier de boutons-poussoirs,
DE3579764D1 (de) Optischer verschiebungsdetektor.
ES243641Y (es) Indicador de nivel de liquido.
JPS5779412A (en) Liquid level indicator
BE857477A (fr) Oxa-1 diaza-4,8 spiro(4,5)decanes, utilisables comme stabilisants a la lumiere
BR8502544A (pt) Indicador de nivel de liquido
DE3166368D1 (en) Arrangement for representing the result of count-on-drum counters in the form of electric signals
DE68912759D1 (de) Flüssigkeitsniveauanzeiger.
ES518008A0 (es) Instalacion medidora del nivel de llenado de un deposito.
JPS5582918A (en) Encoder
GB1553642A (en) Liquid level detector for detecting a liquid level when reaching a prescribed height
JPS57163259A (en) Lens positioning device of copying machine
MX150832A (es) Mejoras a un portador de botellas
JPS57128813A (en) Photoelectric type displacement measuring device
JPS57198813A (en) Optoelectrical encoder
JPS5412773A (en) Optical liquid level detector
JPS5761728A (en) Fused special structured yarn
SU601574A1 (ru) Поплавковый уровнемер
FR2652645B3 (fr) Indicateur de niveau a flotteur.
JPS5294186A (en) Modulated light type photoelectric detecting circuit
JPS5788327A (en) Liquid level detector