TWI447358B - 液體位準感測裝置及方法 - Google Patents
液體位準感測裝置及方法 Download PDFInfo
- Publication number
- TWI447358B TWI447358B TW097147179A TW97147179A TWI447358B TW I447358 B TWI447358 B TW I447358B TW 097147179 A TW097147179 A TW 097147179A TW 97147179 A TW97147179 A TW 97147179A TW I447358 B TWI447358 B TW I447358B
- Authority
- TW
- Taiwan
- Prior art keywords
- conductive electrodes
- sets
- liquid level
- capacitance
- controller
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims description 202
- 238000000034 method Methods 0.000 title claims description 28
- 230000008859 change Effects 0.000 claims description 67
- 230000007704 transition Effects 0.000 claims description 43
- 238000005259 measurement Methods 0.000 claims description 24
- 230000004044 response Effects 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000004020 conductor Substances 0.000 description 23
- 239000007789 gas Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 239000003599 detergent Substances 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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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
- G01F23/26—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
Landscapes
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/966,103 US7802471B2 (en) | 2007-12-28 | 2007-12-28 | Liquid level sensing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200930994A TW200930994A (en) | 2009-07-16 |
| TWI447358B true TWI447358B (zh) | 2014-08-01 |
Family
ID=40796500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW097147179A TWI447358B (zh) | 2007-12-28 | 2008-12-04 | 液體位準感測裝置及方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7802471B2 (enExample) |
| JP (1) | JP5527851B2 (enExample) |
| CN (1) | CN101903755B (enExample) |
| TW (1) | TWI447358B (enExample) |
| WO (1) | WO2009085495A1 (enExample) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US8161814B2 (en) * | 2008-06-09 | 2012-04-24 | Luna Labs, Inc. | Self-calibrating capacitive transducer for determining level of fluent materials |
| US7963164B2 (en) * | 2008-06-09 | 2011-06-21 | Rochester Gauges, Inc. | Capacitive sensor assembly 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 |
| US10533887B2 (en) * | 2014-09-15 | 2020-01-14 | Eltek S.P.A. | Sensor for detecting the level of a medium |
| WO2016042456A2 (en) * | 2014-09-15 | 2016-03-24 | Eltek S.P.A. | Sensor for detecting the level of a medium |
| 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 |
| CA3031358C (en) * | 2016-07-21 | 2023-10-10 | 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 |
| CN112789487A (zh) | 2018-08-31 | 2021-05-11 | 耐普罗公司 | 用于提供内容物样位监视的装置、系统和方法 |
| 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 |
| US12409663B2 (en) | 2020-01-28 | 2025-09-09 | Hewlett-Packard Development Company, L.P. | Composite electrode fluid level sensing |
| 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 |
| EP4481338A4 (en) * | 2022-04-18 | 2025-06-18 | Japan Aviation Electronics Industry, Limited | SENSOR UNIT 70 WITH N-COLUMNS OF SENSORS IN WHICH THE ELECTRODE PAIRS 31 ARE ARRANGED |
| JPWO2023218744A1 (enExample) * | 2022-05-12 | 2023-11-16 | ||
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US935173A (en) * | 1909-07-13 | 1909-09-28 | Perry M Stevens | Harness attachment. |
| US20060042376A1 (en) * | 2004-08-31 | 2006-03-02 | Allied Precision Industries, Inc. | Liquid level sensor |
| US7114391B2 (en) * | 2003-12-26 | 2006-10-03 | Ngk Spark Plug Co., Ltd. | Liquid level detection apparatus |
| TWM299846U (en) * | 2006-05-24 | 2006-10-21 | Huang-Lin Wang | Liquid level detector |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO742093L (enExample) * | 1974-06-10 | 1975-12-11 | Navaltronic As | |
| JPS53135363A (en) * | 1977-04-30 | 1978-11-25 | Eastern Eng Kk | Electronic meter for liquid level and volume measurements |
| JPS54122149A (en) * | 1978-03-16 | 1979-09-21 | Sato Masato | Device for electronically measuring level and quantity of liquid |
| US4888989A (en) * | 1986-02-26 | 1989-12-26 | General Signal Corporation | Level sensor system |
| CN2079286U (zh) * | 1990-11-24 | 1991-06-19 | 长春市电力电子研究所 | 一种电容式液位计 |
| US5726908A (en) * | 1995-03-20 | 1998-03-10 | Figgie International Inc. | Liquid quantity sensor and method |
| JPH1030950A (ja) | 1996-07-16 | 1998-02-03 | Seiwa Electron Kk | 液面センサ |
| US6016697A (en) * | 1997-09-09 | 2000-01-25 | American Magnetics, Inc. | Capacitive level sensor and control system |
| JPH11211537A (ja) | 1998-01-22 | 1999-08-06 | Japan Aviation Electronics Ind Ltd | 液位・誘電率センサ |
| JPH11281460A (ja) | 1998-03-31 | 1999-10-15 | Japan Aviation Electronics Ind Ltd | 静電容量式液面レベルセンサ |
| JPH11311562A (ja) | 1998-04-27 | 1999-11-09 | Wako:Kk | 水位センサ |
| US6935173B2 (en) * | 2002-06-25 | 2005-08-30 | Maxima Technologies & Systems, Inc. | Liquid level sensing device |
| US20040129074A1 (en) * | 2003-01-03 | 2004-07-08 | Paul Rudewicz | Sensor capable of operating outside of ambient operating temperature limits |
| CN2643294Y (zh) * | 2003-09-03 | 2004-09-22 | 太原理工天成科技股份有限公司 | 电容式液位传感器 |
| US7432725B2 (en) * | 2006-03-15 | 2008-10-07 | Freescale Semiconductor, Inc. | Electrical field sensors for detecting fluid presence or level |
| US7802471B2 (en) * | 2007-12-28 | 2010-09-28 | Sieh Philip J | Liquid level sensing device and method |
-
2007
- 2007-12-28 US US11/966,103 patent/US7802471B2/en active Active
-
2008
- 2008-11-25 CN CN200880122050.XA patent/CN101903755B/zh active Active
- 2008-11-25 JP JP2010540704A patent/JP5527851B2/ja not_active Expired - Fee Related
- 2008-11-25 WO PCT/US2008/084624 patent/WO2009085495A1/en not_active Ceased
- 2008-12-04 TW TW097147179A patent/TWI447358B/zh not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US935173A (en) * | 1909-07-13 | 1909-09-28 | Perry M Stevens | Harness attachment. |
| US7114391B2 (en) * | 2003-12-26 | 2006-10-03 | Ngk Spark Plug Co., Ltd. | Liquid level detection apparatus |
| US20060042376A1 (en) * | 2004-08-31 | 2006-03-02 | Allied Precision Industries, Inc. | Liquid level sensor |
| TWM299846U (en) * | 2006-05-24 | 2006-10-21 | Huang-Lin Wang | Liquid level detector |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009085495A1 (en) | 2009-07-09 |
| JP2011508236A (ja) | 2011-03-10 |
| US20090165552A1 (en) | 2009-07-02 |
| JP5527851B2 (ja) | 2014-06-25 |
| US7802471B2 (en) | 2010-09-28 |
| CN101903755B (zh) | 2013-01-02 |
| TW200930994A (en) | 2009-07-16 |
| CN101903755A (zh) | 2010-12-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |