JP6748000B2 - 圧力センサ - Google Patents
圧力センサ Download PDFInfo
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- JP6748000B2 JP6748000B2 JP2017021102A JP2017021102A JP6748000B2 JP 6748000 B2 JP6748000 B2 JP 6748000B2 JP 2017021102 A JP2017021102 A JP 2017021102A JP 2017021102 A JP2017021102 A JP 2017021102A JP 6748000 B2 JP6748000 B2 JP 6748000B2
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- 238000001514 detection method Methods 0.000 claims description 39
- 238000005259 measurement Methods 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000005856 abnormality Effects 0.000 claims description 6
- 238000012937 correction Methods 0.000 claims description 6
- 239000006227 byproduct Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000000231 atomic layer deposition Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910052594 sapphire Inorganic materials 0.000 description 2
- 239000010980 sapphire Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/12—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor
- G01L9/125—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance, i.e. electric circuits therefor with temperature compensating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0016—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a diaphragm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/12—Alarms or signals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L27/00—Testing or calibrating of apparatus for measuring fluid pressure
- G01L27/002—Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0042—Constructional details associated with semiconductive diaphragm sensors, e.g. etching, or constructional details of non-semiconductive diaphragms
- G01L9/0044—Constructional details of non-semiconductive diaphragms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
- G01L9/0075—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance using a ceramic diaphragm, e.g. alumina, fused quartz, glass
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
Description
Claims (5)
- 測定対象からの圧力を受けて変位するダイアフラムを備え、前記ダイアフラムの変位を他の物理量の変化に変換する検出デバイスと、
前記ダイアフラムの変位による前記他の物理量の変化を圧力値に変換して出力するように構成された圧力値出力部と、
前記検出デバイスの所定の温度範囲における温度変化に対する前記圧力値の変化を示す温度特性を記憶する記憶部と、
測定されている前記検出デバイスの温度を元に前記記憶部に記憶されている前記温度特性で前記圧力値出力部が出力する圧力値を補正するように構成された補正部と、
前記検出デバイスの温度を前記所定の温度範囲で変化させるように構成された温度制御部と、
前記温度制御部を動作させて前記検出デバイスの温度を前記所定の温度範囲で変化させ、前記検出デバイスの温度が変化している状態で前記圧力値出力部より出力される圧力値の変化を測定するように構成された圧力値変化測定部と、
前記温度制御部の動作による前記検出デバイスの温度の変化と、前記圧力値変化測定部が測定した圧力値の変化とから前記検出デバイスの温度特性を算出するように構成された温度特性算出部と、
前記記憶部に記憶されている温度特性と、前記温度特性算出部が算出した温度特性との特性差を求めるように構成された特性差算出部と、
前記特性差算出部が求めた特性差が更新基準値を超えた場合、前記温度特性算出部が算出した温度特性で前記記憶部に記憶されている温度特性を更新するように構成された更新部と
を備えることを特徴とする圧力センサ。 - 請求項1記載の圧力センサにおいて、
前記特性差算出部が求めた特性差が異常判定値を超えた場合に警報を発令するように構成された警報出力部
を備えることを特徴とする圧力センサ。 - 請求項1または2記載の圧力センサにおいて、
前記特性差算出部は、前記記憶部に記憶されている温度特性と、前記温度特性算出部が算出した温度特性との差の、前記所定の温度範囲における積分値を前記特性差として求める
ことを特徴とする圧力センサ。 - 請求項1または2記載の圧力センサにおいて、
前記特性差算出部は、前記所定の温度範囲の最大値または最小値において、前記記憶部に記憶されている温度特性と前記温度特性算出部が算出した温度特性との差を前記特性差として求める
ことを特徴とする圧力センサ。 - 請求項1〜4のいずれか1項に記載の圧力センサにおいて、
前記検出デバイスは、前記ダイアフラムと離間して前記ダイアフラムを支持する基台と、前記ダイアフラムに設けられた第1の電極と、前記基台に設けられ前記第1の電極と向いあう第2の電極とを有し、
前記圧力値出力部は、前記ダイアフラムの変位による前記第1の電極と前記第2の電極との間の容量変化を前記圧力値に変換して出力することを特徴とする圧力センサ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017021102A JP6748000B2 (ja) | 2017-02-08 | 2017-02-08 | 圧力センサ |
KR1020180009852A KR102008093B1 (ko) | 2017-02-08 | 2018-01-26 | 압력 센서 |
CN201810083919.XA CN108398204B (zh) | 2017-02-08 | 2018-01-29 | 压力传感器 |
US15/889,974 US10161821B2 (en) | 2017-02-08 | 2018-02-06 | Pressure sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017021102A JP6748000B2 (ja) | 2017-02-08 | 2017-02-08 | 圧力センサ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018128334A JP2018128334A (ja) | 2018-08-16 |
JP6748000B2 true JP6748000B2 (ja) | 2020-08-26 |
Family
ID=63037100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017021102A Active JP6748000B2 (ja) | 2017-02-08 | 2017-02-08 | 圧力センサ |
Country Status (4)
Country | Link |
---|---|
US (1) | US10161821B2 (ja) |
JP (1) | JP6748000B2 (ja) |
KR (1) | KR102008093B1 (ja) |
CN (1) | CN108398204B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110017935B (zh) * | 2019-04-18 | 2024-09-13 | 广东万和热能科技有限公司 | 一种风压传感器 |
US11984334B2 (en) * | 2021-04-13 | 2024-05-14 | Accenture Global Solutions Limited | Anomaly detection method and system for manufacturing processes |
CN115790963A (zh) * | 2022-12-25 | 2023-03-14 | 兰州空间技术物理研究所 | 一种mems电容薄膜真空计微电容检测装置及标定方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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US3643510A (en) * | 1969-12-17 | 1972-02-22 | Liquidonics Inc | Fluid displacement pressure gauges |
US3844173A (en) * | 1973-04-19 | 1974-10-29 | Atomic Energy Commission | Method and apparatus for measuring pressures in fluid lines |
JP2570420B2 (ja) * | 1988-06-23 | 1997-01-08 | 富士電機株式会社 | 静電容量式圧力検出器 |
JP3107516B2 (ja) * | 1996-05-01 | 2000-11-13 | 株式会社日立製作所 | 複合センサ |
US6237394B1 (en) * | 1999-02-25 | 2001-05-29 | Redwood Microsystems, Inc. | Apparatus and method for correcting drift in a sensor |
KR100404904B1 (ko) * | 2001-06-09 | 2003-11-07 | 전자부품연구원 | 차동 용량형 압력센서 및 그 제조방법 |
JP5222457B2 (ja) * | 2005-09-26 | 2013-06-26 | 株式会社日立製作所 | センサおよびセンサモジュール |
JP2009133838A (ja) * | 2007-11-06 | 2009-06-18 | Canon Anelva Technix Corp | 静電容量型隔膜式圧力センサ |
JP5101356B2 (ja) * | 2008-03-17 | 2012-12-19 | 日産自動車株式会社 | 圧力センサおよびこれを備えた圧力測定装置 |
US7918135B2 (en) * | 2009-02-03 | 2011-04-05 | Infineon Technologies Ag | Pressure sensor including thermal selftest |
DE102009027899A1 (de) * | 2009-07-21 | 2011-01-27 | Endress + Hauser Gmbh + Co. Kg | Verfahren zur Druckmessung bei veränderlichen Temperaturen und Druckmessaufnehmer zur Druckmessung bei veränderlichen Temperaturen |
US20120216621A1 (en) * | 2011-02-25 | 2012-08-30 | Seiko Epson Corporation | Physical quantity detector and method of manufacturing the same |
JP5757439B2 (ja) * | 2011-05-31 | 2015-07-29 | 国立研究開発法人科学技術振興機構 | センサにおける温度補償方法、該温度補償方法の演算プログラム、演算処理装置、及び、センサ |
JP5798194B2 (ja) * | 2011-10-05 | 2015-10-21 | キヤノンアネルバ株式会社 | 隔膜型圧力計 |
US9568387B2 (en) * | 2012-08-08 | 2017-02-14 | Rosemount Inc. | Thermal diagnostic for single-crystal process fluid pressure sensor |
US9103738B2 (en) * | 2012-09-07 | 2015-08-11 | Dynisco Instruments Llc | Capacitive pressure sensor with intrinsic temperature compensation |
JP6002016B2 (ja) | 2012-11-30 | 2016-10-05 | アズビル株式会社 | 静電容量型圧力センサ |
WO2014188817A1 (ja) * | 2013-05-24 | 2014-11-27 | 日立金属株式会社 | 圧力センサ及びそれを用いたマスフローメータ並びにマスフローコントローラ |
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2017
- 2017-02-08 JP JP2017021102A patent/JP6748000B2/ja active Active
-
2018
- 2018-01-26 KR KR1020180009852A patent/KR102008093B1/ko active IP Right Grant
- 2018-01-29 CN CN201810083919.XA patent/CN108398204B/zh active Active
- 2018-02-06 US US15/889,974 patent/US10161821B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20180224347A1 (en) | 2018-08-09 |
CN108398204B (zh) | 2020-12-25 |
US10161821B2 (en) | 2018-12-25 |
CN108398204A (zh) | 2018-08-14 |
JP2018128334A (ja) | 2018-08-16 |
KR102008093B1 (ko) | 2019-08-06 |
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