JPS5679912A - Liquid level measuring apparatus - Google Patents

Liquid level measuring apparatus

Info

Publication number
JPS5679912A
JPS5679912A JP15828479A JP15828479A JPS5679912A JP S5679912 A JPS5679912 A JP S5679912A JP 15828479 A JP15828479 A JP 15828479A JP 15828479 A JP15828479 A JP 15828479A JP S5679912 A JPS5679912 A JP S5679912A
Authority
JP
Japan
Prior art keywords
liquid level
bridge
buoyancy
coil
fluctuations
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
JP15828479A
Other languages
Japanese (ja)
Inventor
Akio Murase
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.)
T I SHII SHICHIZUN KK
TIC CITIZEN KK
Original Assignee
T I SHII SHICHIZUN KK
TIC CITIZEN KK
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 T I SHII SHICHIZUN KK, TIC CITIZEN KK filed Critical T I SHII SHICHIZUN KK
Priority to JP15828479A priority Critical patent/JPS5679912A/en
Publication of JPS5679912A publication Critical patent/JPS5679912A/en
Pending legal-status Critical Current

Links

Landscapes

  • Level Indicators Using A Float (AREA)

Abstract

PURPOSE: To obtain a liquid level measuring apparatus that has no moving mass of a movable part by converting fluctuations of buoyancy exerting on a body through fluctuations of the liquid level of a liquid into force required to hold the body at a constant position and then by measuring this force electrically.
CONSTITUTION: Body 3 moving up and down with rod 4 guided by guide 5 is held within liquid 1 and the buoyancy fluctuation measuring means consisting of moving iron core 6b and coil 6a is provided at the tip of rod 4. Further, needle 7a of potentiometer 7 constituting bridge 8 is coupled with rod 4 and the output of bridge 8 is supplied to coil 6a by way of operational amplifier 9 and ammeter 10. As liquid level 2 fluctuates, the buoyancy exerting on body 3 varies and the balance of the bridge is lost, but the unbalance voltage of bridge 8 is amplified by amplifier 9 and supplied to coil 6a to keep the balance of bridge 8. For this purpose, the buoyancy on body 3, i.e. fluctuations of the liquid level can be found by displaying the current at that time by ammeter 10.
COPYRIGHT: (C)1981,JPO&Japio
JP15828479A 1979-12-05 1979-12-05 Liquid level measuring apparatus Pending JPS5679912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15828479A JPS5679912A (en) 1979-12-05 1979-12-05 Liquid level measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15828479A JPS5679912A (en) 1979-12-05 1979-12-05 Liquid level measuring apparatus

Publications (1)

Publication Number Publication Date
JPS5679912A true JPS5679912A (en) 1981-06-30

Family

ID=15668226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15828479A Pending JPS5679912A (en) 1979-12-05 1979-12-05 Liquid level measuring apparatus

Country Status (1)

Country Link
JP (1) JPS5679912A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875370A (en) * 1988-02-08 1989-10-24 Witronic Elektronische Gerate Gesellschaft M.B.H. Apparatus for measuring the contents of a tank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875370A (en) * 1988-02-08 1989-10-24 Witronic Elektronische Gerate Gesellschaft M.B.H. Apparatus for measuring the contents of a tank

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