KR850002303A - 액체레벨을 측정하기 위한 열 시스템 - Google Patents

액체레벨을 측정하기 위한 열 시스템 Download PDF

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Publication number
KR850002303A
KR850002303A KR1019840006065A KR840006065A KR850002303A KR 850002303 A KR850002303 A KR 850002303A KR 1019840006065 A KR1019840006065 A KR 1019840006065A KR 840006065 A KR840006065 A KR 840006065A KR 850002303 A KR850002303 A KR 850002303A
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KR
South Korea
Prior art keywords
measuring
temperature
liquid
liquid level
signal
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KR1019840006065A
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English (en)
Inventor
쟝보바띠에, (외 3)
Original Assignee
피. 쇼무죠
코미싸리아트 아르 에너지에 아토미크
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Application filed by 피. 쇼무죠, 코미싸리아트 아르 에너지에 아토미크 filed Critical 피. 쇼무죠
Publication of KR850002303A publication Critical patent/KR850002303A/ko

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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
    • 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
    • G01F23/246—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 thermal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7306—Electrical characteristic sensing

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

내용 없음

Description

액체레벨을 측정하기 위한 열 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 액체 레벨 측정시스템에 사용된 열감지기를 계략적으로 예시한 도면. 제3도는 측정된 신호들에 대한 처리회로의 동작 다이어그램.

Claims (6)

  1. 측정 저항기(2)와 펄스 모우드에서 공급된 개장된 가열 저항기(3)를 가지는 열감지기로 구성되어 액체(11)내의 함입 동안액체 레벨을 측정하기 위하여 온도 변화를 검출하여 액체 레벨을 측정하기 위한 열시스템에 있어서, 일정한 전류 공급원(17)에 의해 전류가 공급되는 측정 저항기(2)의 단자(7,8)에서의 전압을 측정하는 정합회로(18)를 구성하며, 상기 정합회로(18)의 출력단자는 상기 가열 공급원과 같은 주파수를 갖는 상기 측정 신호의 교류 성분과 직류 성분을 각각 여파하는 2개의 필터(20,22)에 병렬로 연되며, 컴퓨팅 모듈(29)의 액체의 레벨 값과 온도는 액체매체와 기체 매체의 온도의 변화를 측정하기 위한 수단에 의해 공급된 신호와 상기 필터(20,22)로부터의 출력신호를 기준으로 하여 결정되며, 상기 컴퓨터모듈(29)은 상기 측정 신호의 교류 성분의 시간에 대한 유도함수를 기준으로 액체레벨신호를 처리하기 위하여 공지의 아날로그 회로를 기준으로 하여 설계됨을 특징으로 액체 레벨을 측정하기 위한 열시스템.
  2. 제1항에 있어서, 상기 두 필터(20,22)가 모듈(15)에 의해 발생된 펄스 신호에 의해 제어됨을 특징으로 하는 액체레벨측정하기 위한 열 시스템.
  3. 제1항에 있어서, 상기 컴퓨팅 모듈(29)은 2개의 컴퓨팅 회로(30,31)로 구성되는데, 이 회로의 출력 신호들의 합은 상기 필터(20,22)의 두 출력 신호와 액체 매체와 기체 매체의 온도차를 측정하기 위한 수단으로부터의 신호를 기초로 하여 공급하고, 액체레벨과 액체 온도 측정의 시유도 함수는 2개의 적분기(33,34)내에서 적분되며 이 회로의 출력은 최소 자승법에 따른 레벨과 액체온도의 값을 반복하기 위하여 상기 컴퓨팅 회로의 입력 단자로 인가됨을 특징으로 하는 액체 레벨을 측정하기 위한 열 시스템.
  4. 제1항에 있어서, 상기 온도 측정수단은 써머커플임을 특징으로 하는 액체레벨을 측정하기 위한 열시스템.
  5. 제1항 있어서, 상기 온도 측정 수단은 저항 프로브임을 특징으로 하는 액체레벨을 측정하기 위한 열 시스템.
  6. 제1항에 있어서, 상기 온도 측정 수단은 상기 측정프로브임의 가열신호와 동일한 주파수 및 위상으로 가열되는 저항 프로브임을 특징으로 하는 액체레벨을 측정하기 위한 열시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019840006065A 1983-09-29 1984-09-29 액체레벨을 측정하기 위한 열 시스템 KR850002303A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8315562 1983-09-29
FR8315562A FR2552876B1 (fr) 1983-09-29 1983-09-29 Systeme thermique de mesure de niveau de liquide

Publications (1)

Publication Number Publication Date
KR850002303A true KR850002303A (ko) 1985-05-10

Family

ID=9292677

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840006065A KR850002303A (ko) 1983-09-29 1984-09-29 액체레벨을 측정하기 위한 열 시스템

Country Status (10)

Country Link
US (1) US4590797A (ko)
EP (1) EP0144253B1 (ko)
JP (1) JPS6093315A (ko)
KR (1) KR850002303A (ko)
CA (1) CA1233667A (ko)
DE (1) DE3472299D1 (ko)
ES (1) ES8900024A1 (ko)
FR (1) FR2552876B1 (ko)
YU (1) YU45969B (ko)
ZA (1) ZA847645B (ko)

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KR101055863B1 (ko) * 2008-10-02 2011-08-09 포항공과대학교 산학협력단 액체 혼합물 시료의 레벨 및 성분비 측정 센서

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Also Published As

Publication number Publication date
ZA847645B (en) 1985-05-29
US4590797A (en) 1986-05-27
ES536383A0 (es) 1988-10-16
EP0144253B1 (fr) 1988-06-22
DE3472299D1 (en) 1988-07-28
YU45969B (sh) 1992-12-21
JPS6093315A (ja) 1985-05-25
EP0144253A1 (fr) 1985-06-12
YU165484A (en) 1987-10-31
ES8900024A1 (es) 1988-10-16
JPH043813B2 (ko) 1992-01-24
FR2552876A1 (fr) 1985-04-05
FR2552876B1 (fr) 1985-10-25
CA1233667A (en) 1988-03-08

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