DE2720006C3 - Einrichtung zur Überwachung der Lage einer Niveaugrenzfläche - Google Patents

Einrichtung zur Überwachung der Lage einer Niveaugrenzfläche

Info

Publication number
DE2720006C3
DE2720006C3 DE2720006A DE2720006A DE2720006C3 DE 2720006 C3 DE2720006 C3 DE 2720006C3 DE 2720006 A DE2720006 A DE 2720006A DE 2720006 A DE2720006 A DE 2720006A DE 2720006 C3 DE2720006 C3 DE 2720006C3
Authority
DE
Germany
Prior art keywords
foam
level
electrodes
operational amplifier
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.)
Expired
Application number
DE2720006A
Other languages
German (de)
English (en)
Other versions
DE2720006B2 (de
DE2720006A1 (de
Inventor
Frank Montreal Kitzinger
Frank Ville St. Laurent Rosenblum
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.)
Noranda Inc
Original Assignee
Noranda Inc
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 Noranda Inc filed Critical Noranda Inc
Publication of DE2720006A1 publication Critical patent/DE2720006A1/de
Publication of DE2720006B2 publication Critical patent/DE2720006B2/de
Application granted granted Critical
Publication of DE2720006C3 publication Critical patent/DE2720006C3/de
Expired 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
    • G01F23/24—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 resistance of resistors due to contact with conductor fluid
    • G01F23/241—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 resistance of resistors due to contact with conductor fluid for discrete levels
    • G01F23/243—Schematic arrangements of probes combined with measuring circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
DE2720006A 1976-05-06 1977-05-04 Einrichtung zur Überwachung der Lage einer Niveaugrenzfläche Expired DE2720006C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA251,933A CA1053778A (en) 1976-05-06 1976-05-06 Froth level monitor

Publications (3)

Publication Number Publication Date
DE2720006A1 DE2720006A1 (de) 1977-11-24
DE2720006B2 DE2720006B2 (de) 1979-07-05
DE2720006C3 true DE2720006C3 (de) 1980-03-13

Family

ID=4105886

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2720006A Expired DE2720006C3 (de) 1976-05-06 1977-05-04 Einrichtung zur Überwachung der Lage einer Niveaugrenzfläche

Country Status (6)

Country Link
US (1) US4059016A (https=)
JP (1) JPS52135767A (https=)
CA (1) CA1053778A (https=)
DE (1) DE2720006C3 (https=)
FI (1) FI62594C (https=)
GB (1) GB1540341A (https=)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176553A (en) * 1978-12-21 1979-12-04 Ford Motor Company Liquid level measuring system
JPS645237Y2 (https=) * 1981-01-07 1989-02-09
JPS58156755A (ja) * 1982-03-10 1983-09-17 Nissan Motor Co Ltd 自動変速機の油圧制御装置
US4602344A (en) * 1984-10-25 1986-07-22 Air Products And Chemicals, Inc. Method and system for measurement of liquid level in a tank
US4736329A (en) * 1984-10-25 1988-04-05 Air Products And Chemicals, Inc. Method and system for measurement of liquid level in a tank
IT1211347B (it) * 1987-07-31 1989-10-18 Fiat Auto Spa Dispositivo di misura del quantitativo di liquido contenuto all interno di un serbatoio
DE3737607A1 (de) 1987-11-05 1989-05-24 Hoefelmayr Bio Melktech Verfahren und vorrichtung zur durchfuehrung von messungen an einer schaeumenden fluessigkeit
DE3881394T2 (de) * 1988-11-05 1993-09-09 Able Corp Detektion der oberflaeche einer fluessigkeit oder schaumschicht.
SI9200073A (sl) * 1992-05-06 1993-12-31 Andrej Zatler Nivojsko stikalo
US5583544A (en) * 1994-10-06 1996-12-10 Videojet Systems International, Inc. Liquid level sensor for ink jet printers
US6121602A (en) * 1998-06-18 2000-09-19 Nalco/Exxon Energy Chemicals, L.P. Method for monitoring foam and gas carry under and for controlling the addition of foam inhibiting chemicals
NL1010213C2 (nl) * 1998-09-29 2000-03-30 Haffmans Bv Werkwijze en inrichting voor het vaststellen van de stabiliteit van een schuimlaag op een vloeistofkolom.
KR200272969Y1 (ko) * 2002-01-30 2002-04-20 김홍배 가정용 두유,순두부,두부 제조장치의 거품 감지차단장치
KR100499377B1 (ko) 2003-05-27 2005-07-05 김홍배 가정용 두유두부제조기의 스팀 공급장치
KR200329861Y1 (ko) * 2003-07-24 2003-10-10 김홍배 가정용 두유 두부 제조기의 과열 방지장치
KR200331665Y1 (ko) * 2003-08-06 2003-10-30 김홍배 가정용 두유 두부 제조기의 가열 제어장치
KR200336989Y1 (ko) 2003-09-17 2004-01-03 김홍배 가정용 두유두부 제조기의 모터 체결력 보강장치
KR200338470Y1 (ko) * 2003-10-08 2004-01-16 김홍배 증기토출기능을 구비한 가정용 두유두부 제조기
KR200338469Y1 (ko) * 2003-10-08 2004-01-16 김홍배 자중결합 기능을 갖는 가정용 두유 두부 제조기
KR200338466Y1 (ko) * 2003-10-08 2004-01-16 김홍배 가정용 두유 두부 제조기의 대용량 스위치를 이용한일차측 전원 차단장치
KR200338468Y1 (ko) * 2003-10-08 2004-01-16 김홍배 가정용 두유 두부 제조기의 에어 벤트장치
KR200338467Y1 (ko) * 2003-10-08 2004-01-16 김홍배 가정용 두유 두부 제조기의 손잡이 겸용 록킹장치
US20080053316A1 (en) * 2003-10-08 2008-03-06 Hong-Bae Kim Household bean milk and bean curd maker closed by gravity
US20090000494A1 (en) * 2003-10-08 2009-01-01 Hong-Bae Kim Household soybean milk and tofu maker
KR200338530Y1 (ko) * 2003-10-14 2004-01-16 김홍배 가정용 두유 두부 제조기의 실리콘 팩킹 결합 장치
FI20051073A0 (fi) * 2005-10-24 2005-10-24 Geol Tutkimuskeskus Gtk Mittauslaite ja menetelmä vaahdotuspedin laadun ja sen sisäisten vaihteluiden luonnehtimiseksi mittaamalla sekä vaahdon että sen alla olevan nesteen/lietteen johtavuutta
WO2018081867A1 (en) * 2016-11-04 2018-05-11 Commonwealth Scientific And Industrial Research Organisation Interface detection device and system for dispersed multi-phase fluids
US10455968B1 (en) 2016-12-15 2019-10-29 Nicholas J. Singer Coffee dispenser
US9826856B1 (en) 2016-12-15 2017-11-28 Nicholas J. Singer Coffee dispenser

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911744A (en) * 1974-04-10 1975-10-14 Liquidometer Corp Liquid level gauging apparatus
US3935739A (en) * 1974-04-10 1976-02-03 Liquidometer Corporation Liquid level gauging apparatus

Also Published As

Publication number Publication date
FI62594B (fi) 1982-09-30
US4059016A (en) 1977-11-22
CA1053778A (en) 1979-05-01
JPS52135767A (en) 1977-11-14
DE2720006B2 (de) 1979-07-05
GB1540341A (en) 1979-02-07
DE2720006A1 (de) 1977-11-24
FI771439A7 (https=) 1977-11-07
FI62594C (fi) 1983-01-10

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee