JPS5590820A - Device for measuring liquid level difference - Google Patents

Device for measuring liquid level difference

Info

Publication number
JPS5590820A
JPS5590820A JP16433478A JP16433478A JPS5590820A JP S5590820 A JPS5590820 A JP S5590820A JP 16433478 A JP16433478 A JP 16433478A JP 16433478 A JP16433478 A JP 16433478A JP S5590820 A JPS5590820 A JP S5590820A
Authority
JP
Japan
Prior art keywords
liquid level
meter
pressure
level difference
type liquid
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
JP16433478A
Other languages
Japanese (ja)
Other versions
JPS584970B2 (en
Inventor
Noboru Hayakawa
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.)
Nishihara Environment Co Ltd
Original Assignee
Nishihara Environmental Sanitation Research 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 Nishihara Environmental Sanitation Research Corp filed Critical Nishihara Environmental Sanitation Research Corp
Priority to JP16433478A priority Critical patent/JPS584970B2/en
Publication of JPS5590820A publication Critical patent/JPS5590820A/en
Publication of JPS584970B2 publication Critical patent/JPS584970B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

PURPOSE: To provide a device for measuring liquid level difference with simple construction by combining a pressure conversion type liquid level meter and a bubble tube type liquid level meter and measuring the liquid level difference as the electrostatic capacity change.
CONSTITUTION: A synthetic rubber diaphragm 9 movable in response to the variation in hydraulic pressure is disposed under the first liquid level meter 5 to be sealed therein, and air of predetermined pressure is supplied from a purge set 10 through a pressure conduit 3 communicating with a bubble tube type liquid level meter 4 to the first meter 5. The air pressure supplied to the meter 5 is varied depending upon the water level at the outside of a screen 1, and the height of the fresh water of the meter is defined by the air pressure. Accordingly, a liquid level converter 7 converts the height of the fresh water as electrostatic capacity to an electric signal and displays it on a meter to thereby measure the liquid level difference between the inflow side and outflow side of the screen.
COPYRIGHT: (C)1980,JPO&Japio
JP16433478A 1978-12-29 1978-12-29 Liquid level difference measuring device Expired JPS584970B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16433478A JPS584970B2 (en) 1978-12-29 1978-12-29 Liquid level difference measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16433478A JPS584970B2 (en) 1978-12-29 1978-12-29 Liquid level difference measuring device

Publications (2)

Publication Number Publication Date
JPS5590820A true JPS5590820A (en) 1980-07-09
JPS584970B2 JPS584970B2 (en) 1983-01-28

Family

ID=15791189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16433478A Expired JPS584970B2 (en) 1978-12-29 1978-12-29 Liquid level difference measuring device

Country Status (1)

Country Link
JP (1) JPS584970B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6799457B2 (en) * 2001-03-08 2004-10-05 Hydro-Quebec Bubble level meter and related method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6799457B2 (en) * 2001-03-08 2004-10-05 Hydro-Quebec Bubble level meter and related method

Also Published As

Publication number Publication date
JPS584970B2 (en) 1983-01-28

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