KR920015123A - 상태광원 및 외부 테스트 특성을 갖춘 물질수위표시장치 - Google Patents

상태광원 및 외부 테스트 특성을 갖춘 물질수위표시장치 Download PDF

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KR920015123A
KR920015123A KR1019920000205A KR920000205A KR920015123A KR 920015123 A KR920015123 A KR 920015123A KR 1019920000205 A KR1019920000205 A KR 1019920000205A KR 920000205 A KR920000205 A KR 920000205A KR 920015123 A KR920015123 A KR 920015123A
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probe
housing
material level
circuit
circuit means
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KR1019920000205A
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KR100196450B1 (ko
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에프. 마쉬 노만
티. 아이크베르거 로버트
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에프. 마쉬 노만
빈디케이터 캄파니
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    • 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
    • G01F23/282—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 for discrete levels
    • 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
    • G01F23/14—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 measurement of pressure
    • G01F23/18—Indicating, recording or alarm devices actuated electrically
    • 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
    • G01F23/226—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 measuring the braking of a rotatable element
    • 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
    • G01F23/26—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/265—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
    • 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
    • G01F23/26—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor
    • 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
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • 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
    • G01F23/296—Acoustic waves
    • G01F23/2966—Acoustic waves making use of acoustical resonance or standing waves
    • G01F23/2967—Acoustic waves making use of acoustical resonance or standing waves for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
    • G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
    • G01F25/24—Testing proper functioning of electronic circuits

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

내용 없음

Description

상태광원 및 외부 테스트 특성을 갖춘 물질수위표시장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도 내지 제5도는 본 발명의 또다른 실시예의 개략적 회로도.

Claims (6)

  1. 물질 수위가 검출되는 소망의 높이에 대응하는 위치에 용기내에 위치하는 탐침수단(14 또는 70 또는 100 포는 140), 용기로부터 떨어져 위치한 전력원(52), 상기 탐침수단에 연결되고 물질 수위가 상기 탐침수단으로부터 떨어져 있는 제1동작특성과 물질수위가 상기 탐침수단으로부터 근접할때의 제2동작특성사이의 동작특성에서의 변화를 검출하기 위한 상기 탐침수단의 동작특성에 응하고, 상기 탐침수단상에 장착된 밀폐 하우징(2O)내에 포함되어 있고, 상기 전원으로 부터 전력을 수신하기 위하여 상기 전원에 접속되어 있는 회로수단(18 또는 74 또는 108 내지 116도는 136또는 152), 상기 전원으로부터 상기 회로 수단에의 전력인가를 표시하기 위하여 상기 회로수단에 연결된 상기 하우징상의 제1상태 램프수단(56), 용내안의 물질 수위가 상기 탐침수단으로부터 각각 떨어져 있거나 근접하여 있을때 상기 탐침수단의 상기 제l 및 제2동작특성중 하나의 검출을 표시하기 위하여 상기 회로수단에 결합된 상기 하우징위의 제2상태램프수단(48), 상기 l동작 특성을 시뮬레이트하고 상기 제2램프수단을 조명하기 위하여 상기 스위치 수단에 에너지를 인가하는 수단(68)으로 구성되며, 상기 회로 수단은 상기 탐침수단에서 실제 물질 수위와 독립하여 상기 탐침수단에서 상기 제1 및 제2동작특성중 하나를 시뮬레이트하기 위하여 상기 회로수단에 결합된 스위치수단(64)을 더 포함하는 것을 특징으로 하는 용기(12)내의 물질(l6)의 수위를 표시하는 장치.
  2. 제1항에 있어서, 상기 스위치 수단(64)은 상기 하우징내에 위치하고 상기 하우징 외부로부터 상기 하우징을 통하여 에너지의 인가에 응답하는 것을 특징으로 하는 장치.
  3. 제2항에 있어서, 상기 회로수단은 상기 전원과 상기 회로수단사이에 단일 접속을 제공하는 2-배선상호접속수단(54)에 의하여 상기 전원에 접속되는 것을 특징으로 하는 장치.
  4. 제3항에 있어서, 상기 회로수단은 상기 탐침수단에서 상기 제1 및 제2동작상태에 대응하는 제1 및 제2크기로 상기 2-배선 상호접속 수단을 통하여 전류를 유도하기 위한 수단을 포함하는 것을 특징으로 하는 장치.
  5. 제2항에 있어서, 상기 스위치수단(64)은 리드 스위치로 구성되며, 상기 에너지 인가수단(68)은 영구자석으로 구성되는 것을 특징으로 하는 장치.
  6. 제1항에 있어서, 상기 제1 및 제2상태 램프수단(56 및 48)은 각각 LED로 구성되는 것을 특징으로 하는 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920000205A 1991-01-09 1992-01-09 상태광원 및 외부 테스트 특성을 갖춘 물질수위표시장치 KR100196450B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63981591A 1991-01-09 1991-01-09
US7/639,815 1991-01-09

Publications (2)

Publication Number Publication Date
KR920015123A true KR920015123A (ko) 1992-08-26
KR100196450B1 KR100196450B1 (ko) 1999-06-15

Family

ID=24565659

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Application Number Title Priority Date Filing Date
KR1019920000205A KR100196450B1 (ko) 1991-01-09 1992-01-09 상태광원 및 외부 테스트 특성을 갖춘 물질수위표시장치

Country Status (6)

Country Link
EP (1) EP0494398B2 (ko)
JP (1) JPH04315921A (ko)
KR (1) KR100196450B1 (ko)
AU (1) AU638882B2 (ko)
CA (1) CA2057556C (ko)
DE (1) DE69110442T3 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485401A (en) * 1993-06-14 1996-01-16 Scully Signal Company Method and apparatus for testing overfill protection devices
US5446444A (en) * 1993-12-17 1995-08-29 Robertshaw Controls Company Capacitive threshold detector test circuit
DE4402234C1 (de) * 1994-01-26 1995-04-20 Endress Hauser Gmbh Co Verfahren und Anordnung zur Feststellung und/oder Überwachung eines vorbestimmten Füllstands in einem Behälter
DE10023305C2 (de) * 2000-05-15 2002-10-17 Grieshaber Vega Kg Verfahren zur Ansteuerung einer Wandlereinrichtung in Füllstandmessgeräten und Vorrichtung zur Durchführung des Verfahrens
DE10347333A1 (de) * 2003-10-11 2005-05-12 Walther Spritz Lackiersyst Verfahren zum schonenden Fördern von empfindlichen Klebstoffen sowie Anordnung zur Durchführung eines solchen Verfahrens
CN109724672B (zh) * 2019-03-01 2021-02-02 北京锐达仪表有限公司 电磁波料位开关的发射器及电磁波料位开关

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147906A (en) * 1977-11-07 1979-04-03 Bindicator Company Rotation paddle bin level indicator
US4279078A (en) * 1980-02-12 1981-07-21 Conoco, Inc. Fluid presence detector
US4499766A (en) * 1982-08-25 1985-02-19 Berwind Corporation Capacitance-type material level indicator
US4539547A (en) * 1983-04-25 1985-09-03 Ford Motor Company Low liquid level sensing and warning circuit
JPS61160212U (ko) * 1985-03-27 1986-10-04
US4695685A (en) * 1986-07-28 1987-09-22 Berwind Corporation Rotating paddle bin level indicator
US5048335A (en) * 1987-10-01 1991-09-17 Bindicator Company Capacitance-type material level indicator

Also Published As

Publication number Publication date
KR100196450B1 (ko) 1999-06-15
EP0494398B1 (en) 1995-06-14
CA2057556A1 (en) 1992-07-10
DE69110442D1 (de) 1995-07-20
EP0494398A3 (en) 1993-05-19
EP0494398A2 (en) 1992-07-15
AU638882B2 (en) 1993-07-08
DE69110442T3 (de) 2000-02-17
AU8968691A (en) 1992-07-16
JPH04315921A (ja) 1992-11-06
EP0494398B2 (en) 1999-07-28
DE69110442T2 (de) 1995-10-12
CA2057556C (en) 1995-12-12

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