CN101903755B - 液位感测器件和方法 - Google Patents

液位感测器件和方法 Download PDF

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Publication number
CN101903755B
CN101903755B CN200880122050.XA CN200880122050A CN101903755B CN 101903755 B CN101903755 B CN 101903755B CN 200880122050 A CN200880122050 A CN 200880122050A CN 101903755 B CN101903755 B CN 101903755B
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China
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conductive electrode
liquid level
capacitance
coupled
sense wire
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Chinese (zh)
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CN101903755A (zh
Inventor
菲利普·J·西耶
罗伯特·L·约翰逊
布赖斯·T·欧索伊纳赫
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NXP USA Inc
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Freescale Semiconductor Inc
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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
    • G01F23/26—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
    • G01F23/26—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
    • G01F23/268—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 mounting arrangements of probes

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
CN200880122050.XA 2007-12-28 2008-11-25 液位感测器件和方法 Active CN101903755B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/966,103 US7802471B2 (en) 2007-12-28 2007-12-28 Liquid level sensing device and method
US11/966,103 2007-12-28
PCT/US2008/084624 WO2009085495A1 (en) 2007-12-28 2008-11-25 Liquid level sensing device and method

Publications (2)

Publication Number Publication Date
CN101903755A CN101903755A (zh) 2010-12-01
CN101903755B true CN101903755B (zh) 2013-01-02

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CN200880122050.XA Active CN101903755B (zh) 2007-12-28 2008-11-25 液位感测器件和方法

Country Status (5)

Country Link
US (1) US7802471B2 (https=)
JP (1) JP5527851B2 (https=)
CN (1) CN101903755B (https=)
TW (1) TWI447358B (https=)
WO (1) WO2009085495A1 (https=)

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US8047073B2 (en) * 2007-05-14 2011-11-01 Samsung Sdi Co., Ltd. Capacitive liquid level detector for direct methanol fuel cell systems
US7802471B2 (en) * 2007-12-28 2010-09-28 Sieh Philip J Liquid level sensing device and method
DE102008014773A1 (de) * 2008-03-18 2009-10-08 Delo Industrieklebstoffe Gmbh & Co. Kg Behälter für fließfähige Substanzen
US7963164B2 (en) * 2008-06-09 2011-06-21 Rochester Gauges, Inc. Capacitive sensor assembly for determining level of fluent materials
US8161814B2 (en) * 2008-06-09 2012-04-24 Luna Labs, Inc. Self-calibrating capacitive transducer for determining level of fluent materials
US9027595B2 (en) * 2010-06-17 2015-05-12 Avinash Girish Bhardwaj Transparent fluid recirculation reservoir system
CN102128662B (zh) * 2010-12-31 2012-08-22 北京遥测技术研究所 一种分节电容式连续液位传感器
US9261395B2 (en) * 2012-02-13 2016-02-16 Goodrich Corporation Liquid level sensing system
US9921125B2 (en) 2014-03-27 2018-03-20 Nxp Usa, Inc. Leak detector using capacitance sensor
EP3194909B1 (en) * 2014-09-15 2024-11-13 Eltek S.p.A. Sensor for detecting the level of a medium
CN107110690A (zh) * 2014-09-15 2017-08-29 埃尔特克有限公司 用于检测介质的水平的传感器
CN104296830A (zh) * 2014-10-24 2015-01-21 杰克缝纫机股份有限公司 一种液位传感器及其液位检测方法
CN104457907B (zh) * 2014-12-10 2017-10-13 华帝股份有限公司 一种用于测量绝缘容器内液位的非接触式检测装置
KR101707002B1 (ko) * 2015-03-04 2017-02-15 숭실대학교산학협력단 복합 감지형 센서 및 제조방법
KR101725157B1 (ko) * 2015-04-06 2017-04-12 주식회사 지니틱스 정전용량센서를 이용한 도전물질감지장치
FR3037649B1 (fr) * 2015-06-16 2017-07-07 Coutier Moulage Gen Ind Dispositif et procede de mesure de hauteur de liquide dans un conteneur
US10753815B2 (en) 2015-10-28 2020-08-25 Hewlett-Packard Development Company, L.P. Relative pressure sensor
US10175085B2 (en) * 2015-11-13 2019-01-08 CiES, Inc. Comparative fuel-level detection system
WO2017210271A1 (en) * 2016-05-31 2017-12-07 Pointwatch Systems Llc Liquid handling system monitoring systems and methods
US10371555B2 (en) * 2016-07-21 2019-08-06 Touchsensor Technologies, Llc Capacitive continuous fluid level sensor
CN107518851B (zh) * 2017-08-02 2020-06-30 佛山市顺德区美的洗涤电器制造有限公司 洗碗机及其液位检测装置和液位检测方法
CN108507638A (zh) * 2018-03-27 2018-09-07 招商局重工（江苏）有限公司 基于无线通信技术的平台液位遥测系统
EP3844462B1 (en) * 2018-08-31 2024-10-30 Nypro Inc. Apparatus, system, and method of providing a content level monitor
CN109443489B (zh) * 2018-11-13 2024-11-15 世强先进(深圳)科技股份有限公司 一种电容式液位测量装置及方法
EP3685994B1 (de) 2019-01-24 2025-09-17 Ivoclar Vivadent AG Stereolithographie-vorrichtung
US11674838B2 (en) 2019-04-04 2023-06-13 Poseidon Systems Llc Capacitive fringe field oil level sensor with integrated humidity and temperature sensing
CN111076790B (zh) * 2019-12-30 2021-06-22 上海科勒电子科技有限公司 一种液位监测方法、存储介质和电子设备
WO2021154217A1 (en) 2020-01-28 2021-08-05 Hewlett-Packard Development Company, L.P. Composite electrode fluid level sensing
ES2919665B2 (es) * 2021-01-26 2023-03-30 Cebi Electromechanical Components Spain S A Sensor capacitivo para la medicion de nivel de una sustancia en un deposito
CN115704707B (zh) * 2021-08-13 2025-10-14 中国科学院理化技术研究所 液位传感装置
CN118922692A (zh) * 2022-04-18 2024-11-08 日本航空电子工业株式会社 用于确定界面的位置的传感器、液位计
WO2023218744A1 (ja) * 2022-05-12 2023-11-16 日本航空電子工業株式会社 界面の位置を特定するためのセンサ、液位計
CN116045406A (zh) * 2022-12-16 2023-05-02 珠海格力电器股份有限公司 一种加湿器的控制方法、电子设备和存储介质
CN117213580B (zh) * 2023-10-30 2024-09-27 深圳市赛元微电子股份有限公司 一种电容比例式液位检测方法和检测装置

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Also Published As

Publication number Publication date
US7802471B2 (en) 2010-09-28
CN101903755A (zh) 2010-12-01
US20090165552A1 (en) 2009-07-02
TW200930994A (en) 2009-07-16
WO2009085495A1 (en) 2009-07-09
TWI447358B (zh) 2014-08-01
JP5527851B2 (ja) 2014-06-25
JP2011508236A (ja) 2011-03-10

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Address after: Texas in the United States

Patentee after: NXP America Co Ltd

Address before: Texas in the United States

Patentee before: Fisical Semiconductor Inc.