JP5588243B2 - 検出手段として静電気干渉を使用するモノリシック真空マノメータ - Google Patents
検出手段として静電気干渉を使用するモノリシック真空マノメータ Download PDFInfo
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- JP5588243B2 JP5588243B2 JP2010148577A JP2010148577A JP5588243B2 JP 5588243 B2 JP5588243 B2 JP 5588243B2 JP 2010148577 A JP2010148577 A JP 2010148577A JP 2010148577 A JP2010148577 A JP 2010148577A JP 5588243 B2 JP5588243 B2 JP 5588243B2
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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
- G01L9/0072—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
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/08—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
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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
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- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Description
なお、この出願は、2009年7月1日に出願された米国仮特許出願第61/222,184号に優先権を主張するものであり、その教示の全てをその内容全体を参照することで本明細書に引用する。
本発明の原理のシステム及び方法のより完全な理解は、後述される発明の詳細な説明を添付図面とともに参照することによって得られるであろう。
Claims (6)
- 真空マノメータであって、
上表面及び底表面を備える中心部分よりも高く伸張する側壁を有する基部と、
基部の中心部分によって画定される開口を貫いて伸張する第1、第2及び第3の電気的導体と、
基部の上表面の少なくとも一部分に付着されるガラス被膜と、
ガラス被膜上に成膜され、第1、第2及び第3の電気的導体の各々と電気的に接続される複数の導電性素子と、
側壁と接続され、導電性素子の上部に延在しているダイヤフラムと、
第1、第2及び第3の電気的導体と電気的に接続された回路であって、位相が反対で且つ同じ振幅を有する交流電気信号を第1及び第2の電気的導体に供給し、ダイヤフラムの動きに応じて、第1及び第2の電気的導体の各々に接続された導電素子と第3の電気的導体に接続された導電素子との間における寄生容量結合に干渉して生じる信号を、第3の電気的導体を介して受信する回路と
を備えることを特徴とする真空マノメータ。 - 請求項1記載の真空マノメータにおいて、導電性素子はガラス被膜上の蒸着層であることを特徴とする真空マノメータ。
- 請求項1記載の真空マノメータにおいて、該真空マノメータはさらに、第1、第2及び第3の電気的導体がそれぞれ通過する開口の内側表面に接続される複数のガラスフィードスルーを備え、ガラスフィードスルーは真空密封を提供することを特徴とする真空マノメータ。
- 請求項1記載の真空マノメータにおいて、複数の導電性素子は、3つの導電性素子を1組とする複数の組を含み、各組の3つの導電性素子において、隣接する導電性素子間で寄生容量結合が生成されるよう配置されていることを特徴とする真空マノメータ。
- 請求項4記載の真空マノメータにおいて、
第1の電気的導体に接続された複数の導電性素子は、基部を貫いて伸張する第1の電気的導体に接続された第1のガラスフィードスルーからガラス被膜上で半径方向内向きに伸張する第1の直線導電性ストリップから円周方向に伸張し、
第2の電気的導体に接続された複数の導電性素子は、基部を貫いて伸張する第2の電気的導体に接続された第2のガラスフィードスルーからガラス被膜上で半径方向外向きに伸張する第2の直線導電性ストリップから円周方向に伸張し、
第3の電気的導体に接続された複数の導電性素子は、基部を貫いて伸張する第3の電気的導体に接続された第3のガラスフィードスルーからガラス被膜上で半径方向内向きに伸張する第3の直線導電性ストリップから円周方向に伸張する
ことを特徴とする真空マノメータ。 - 請求項1記載の真空マノメータにおいて、基部は金属であることを特徴とする真空マノメータ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22218409P | 2009-07-01 | 2009-07-01 | |
US61/222,184 | 2009-07-01 |
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JP2011013218A JP2011013218A (ja) | 2011-01-20 |
JP5588243B2 true JP5588243B2 (ja) | 2014-09-10 |
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JP2010148577A Active JP5588243B2 (ja) | 2009-07-01 | 2010-06-30 | 検出手段として静電気干渉を使用するモノリシック真空マノメータ |
Country Status (3)
Country | Link |
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US (2) | US8141430B2 (ja) |
JP (1) | JP5588243B2 (ja) |
KR (1) | KR101657714B1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8432727B2 (en) | 2010-04-29 | 2013-04-30 | Qualcomm Incorporated | Invalid write prevention for STT-MRAM array |
US8316717B2 (en) * | 2010-06-29 | 2012-11-27 | Rogue Valley Microdevices, Inc. | Wireless self-powered monolithic integrated capacitive sensor and method of manufacture |
US9408555B2 (en) | 2010-06-30 | 2016-08-09 | Indiana University Research And Technology Corporation | Supersensitive linear pressure transducer |
EP2674392B1 (en) | 2012-06-12 | 2017-12-27 | ams international AG | Integrated circuit with pressure sensor and manufacturing method |
US9454158B2 (en) | 2013-03-15 | 2016-09-27 | Bhushan Somani | Real time diagnostics for flow controller systems and methods |
US9330929B1 (en) * | 2014-10-13 | 2016-05-03 | Infineon Technologies Dresden Gmbh | Systems and methods for horizontal integration of acceleration sensor structures |
US10983538B2 (en) | 2017-02-27 | 2021-04-20 | Flow Devices And Systems Inc. | Systems and methods for flow sensor back pressure adjustment for mass flow controller |
CN106918423A (zh) * | 2017-04-11 | 2017-07-04 | 哈尔滨亿华电站配套设备有限公司 | 一种夹层玻璃抽真空生产线在线检测装置 |
GB2567403B (en) * | 2017-06-03 | 2021-12-15 | Zedsen Ltd | Air pressure sensor |
JP6947041B2 (ja) * | 2018-01-09 | 2021-10-13 | 日立金属株式会社 | 多心ケーブルの検査方法、多心ケーブルアセンブリの製造方法、及び多心ケーブルの検査装置 |
KR102044627B1 (ko) * | 2018-04-30 | 2019-11-13 | 주식회사 이너센서 | 전계 효과를 이용한 압력 센서 및 이의 제조 방법 |
Family Cites Families (17)
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JPS59144515U (ja) * | 1983-03-18 | 1984-09-27 | 横河電機株式会社 | 容量式変換装置 |
US4730496A (en) | 1986-06-23 | 1988-03-15 | Rosemount Inc. | Capacitance pressure sensor |
US4701826A (en) * | 1986-10-30 | 1987-10-20 | Ford Motor Company | High temperature pressure sensor with low parasitic capacitance |
US4823603A (en) * | 1988-05-03 | 1989-04-25 | Vacuum General, Inc. | Capacitance manometer having stress relief for fixed electrode |
JPH04204339A (ja) * | 1990-11-30 | 1992-07-24 | Sumitomo Electric Ind Ltd | 静電容量式圧力検知装置 |
JPH0832089A (ja) * | 1994-07-21 | 1996-02-02 | Tokin Corp | 静電容量型圧力センサ |
US5528452A (en) * | 1994-11-22 | 1996-06-18 | Case Western Reserve University | Capacitive absolute pressure sensor |
EP0862051A4 (en) * | 1996-09-19 | 1999-12-08 | Hokuriku Elect Ind | CAPACITIVE PRESSURE CONVERTER |
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WO2000011444A1 (en) * | 1998-08-19 | 2000-03-02 | Wisconsin Alumni Research Foundation | Sealed capacitive pressure sensors |
JP2001324398A (ja) * | 2000-03-07 | 2001-11-22 | Anelva Corp | 耐蝕型真空センサ |
US6910381B2 (en) | 2002-05-31 | 2005-06-28 | Mykrolis Corporation | System and method of operation of an embedded system for a digital capacitance diaphragm gauge |
US6701790B2 (en) | 2002-06-13 | 2004-03-09 | Mykrolis Corporation | Temperature regulator for use with a pressure sensing device |
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JP4585426B2 (ja) * | 2005-10-31 | 2010-11-24 | アルプス電気株式会社 | 静電容量型圧力センサ |
RU2377518C1 (ru) | 2008-06-02 | 2009-12-27 | Открытое акционерное общество "Научно-исследовательский институт физических измерений" | Емкостной преобразователь абсолютного давления |
US8590387B2 (en) * | 2011-03-31 | 2013-11-26 | DePuy Synthes Products, LLC | Absolute capacitive micro pressure sensor |
-
2010
- 2010-06-30 JP JP2010148577A patent/JP5588243B2/ja active Active
- 2010-06-30 US US12/827,531 patent/US8141430B2/en active Active
- 2010-07-01 KR KR1020100063530A patent/KR101657714B1/ko active IP Right Grant
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- 2012-01-09 US US13/346,207 patent/US8511169B2/en active Active
Also Published As
Publication number | Publication date |
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US20110000303A1 (en) | 2011-01-06 |
KR101657714B1 (ko) | 2016-09-19 |
KR20110002444A (ko) | 2011-01-07 |
JP2011013218A (ja) | 2011-01-20 |
US8511169B2 (en) | 2013-08-20 |
US20120103102A1 (en) | 2012-05-03 |
US8141430B2 (en) | 2012-03-27 |
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