WO2009050813A1 - 静電容量検出装置 - Google Patents
静電容量検出装置 Download PDFInfo
- Publication number
- WO2009050813A1 WO2009050813A1 PCT/JP2007/070372 JP2007070372W WO2009050813A1 WO 2009050813 A1 WO2009050813 A1 WO 2009050813A1 JP 2007070372 W JP2007070372 W JP 2007070372W WO 2009050813 A1 WO2009050813 A1 WO 2009050813A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- resonance
- resonance circuit
- electrostatic capacity
- reference phase
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/125—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by capacitive pick-up
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/08—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by electric charge or by variation of electric resistance or capacitance
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/02—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using ferroelectric record carriers; Record carriers therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
- G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Gyroscopes (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/738,240 US8253426B2 (en) | 2007-10-18 | 2007-10-18 | Capacitance detector |
PCT/JP2007/070372 WO2009050813A1 (ja) | 2007-10-18 | 2007-10-18 | 静電容量検出装置 |
JP2009537822A JP4975824B2 (ja) | 2007-10-18 | 2007-10-18 | 静電容量検出装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2007/070372 WO2009050813A1 (ja) | 2007-10-18 | 2007-10-18 | 静電容量検出装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009050813A1 true WO2009050813A1 (ja) | 2009-04-23 |
Family
ID=40567105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/070372 WO2009050813A1 (ja) | 2007-10-18 | 2007-10-18 | 静電容量検出装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8253426B2 (ja) |
JP (1) | JP4975824B2 (ja) |
WO (1) | WO2009050813A1 (ja) |
Cited By (7)
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---|---|---|---|---|
JP2015040841A (ja) * | 2013-08-23 | 2015-03-02 | 株式会社前川製作所 | 固液二相流体の固相率測定装置、冷却システム及び固相率計測方法 |
JP2019027943A (ja) * | 2017-07-31 | 2019-02-21 | 日立金属株式会社 | ガスセンサ |
JPWO2018037463A1 (ja) * | 2016-08-22 | 2019-06-20 | パイオニア株式会社 | 静電容量検出装置及び光波長選択フィルタ装置 |
US10551192B2 (en) | 2014-05-23 | 2020-02-04 | Hitachi Automotive Systems, Ltd. | Inertial sensor |
CN110907880A (zh) * | 2019-11-27 | 2020-03-24 | 深圳天溯计量检测股份有限公司 | 一种电容测试仪的校准方法 |
JP2020187018A (ja) * | 2019-05-15 | 2020-11-19 | 株式会社東芝 | センサ |
WO2024024886A1 (ja) * | 2022-07-28 | 2024-02-01 | カヤバ株式会社 | 流体性状検出装置 |
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GB201011785D0 (en) * | 2010-07-13 | 2010-08-25 | Oxford Rf Sensors Ltd | Permittivity sensor |
US8789092B2 (en) | 2010-08-12 | 2014-07-22 | Lucid Commerce, Inc. | Targeting television ads using keywords |
US8768770B2 (en) | 2010-08-30 | 2014-07-01 | Lucid Commerce, Inc. | System and method for attributing multi-channel conversion events and subsequent activity to multi-channel media sources |
DE102011084903A1 (de) * | 2011-10-20 | 2013-04-25 | TAKATA Aktiengesellschaft | Sensorsysteme für ein Kraftfahrzeug |
US20140009176A1 (en) * | 2012-07-06 | 2014-01-09 | Apple Inc. | Capacitance measurement circuit |
CN102854399B (zh) * | 2012-09-07 | 2014-07-23 | 江苏物联网研究发展中心 | 一种电容式mems传感器的检测电路 |
CZ201384A3 (cs) * | 2013-02-07 | 2014-03-26 | České vysoké učení technické v Praze - Fakulta elektrotechnická | Zařízení pro automatické testování výkonových kondenzátorů |
GB201313725D0 (en) * | 2013-07-31 | 2013-09-11 | Salunda Ltd | Fluid sensor |
DE112015002408B4 (de) | 2014-05-22 | 2022-10-27 | Joyson Safety Systems Acquisition Llc | Systeme und Verfahren zum Abschirmen eines Handsensorsystems in einem Lenkrad |
CN111422238B (zh) | 2014-06-02 | 2022-10-25 | Tk控股公司 | 用于在方向盘的传感器垫上印刷传感器电路的系统和方法 |
EP3208634B1 (de) * | 2016-02-17 | 2018-08-15 | ELMOS Semiconductor Aktiengesellschaft | Ultraschallmesssystem, insbesondere zur abstandsmessung und/oder als parkhilfe bei fahrzeugen |
US10336361B2 (en) | 2016-04-04 | 2019-07-02 | Joyson Safety Systems Acquisition Llc | Vehicle accessory control circuit |
US10408870B2 (en) * | 2016-06-28 | 2019-09-10 | Himax Technologies Limited | Capacitor sensor apparatus and sensing method thereof |
CN109689441B (zh) | 2016-07-20 | 2021-12-07 | 均胜安全系统收购有限责任公司 | 乘员检测和分类系统 |
US11211931B2 (en) | 2017-07-28 | 2021-12-28 | Joyson Safety Systems Acquisition Llc | Sensor mat providing shielding and heating |
CN111788084A (zh) * | 2018-01-24 | 2020-10-16 | 捷温汽车有限公司 | 用于感测方向盘上的乘员或座椅中的乘员的手的存在的方向盘或座椅的电容感测和加热系统 |
US11537242B2 (en) | 2018-03-29 | 2022-12-27 | Cirrus Logic, Inc. | Q-factor enhancement in resonant phase sensing of resistive-inductive-capacitive sensors |
US10921159B1 (en) | 2018-03-29 | 2021-02-16 | Cirrus Logic, Inc. | Use of reference sensor in resonant phase sensing system |
US10908200B2 (en) | 2018-03-29 | 2021-02-02 | Cirrus Logic, Inc. | Resonant phase sensing of resistive-inductive-capacitive sensors |
US10642435B2 (en) | 2018-03-29 | 2020-05-05 | Cirrus Logic, Inc. | False triggering prevention in a resonant phase sensing system |
US11092657B2 (en) * | 2018-03-29 | 2021-08-17 | Cirrus Logic, Inc. | Compensation of changes in a resonant phase sensing system including a resistive-inductive-capacitive sensor |
US10725549B2 (en) | 2018-03-29 | 2020-07-28 | Cirrus Logic, Inc. | Efficient detection of human machine interface interaction using a resonant phase sensing system |
EP3654532B1 (en) * | 2018-11-16 | 2022-05-18 | Bently Nevada, LLC | Proximity sensing system with component compatibility testing |
US10948313B2 (en) | 2019-02-26 | 2021-03-16 | Cirrus Logic, Inc. | Spread spectrum sensor scanning using resistive-inductive-capacitive sensors |
US11402946B2 (en) | 2019-02-26 | 2022-08-02 | Cirrus Logic, Inc. | Multi-chip synchronization in sensor applications |
US11536758B2 (en) | 2019-02-26 | 2022-12-27 | Cirrus Logic, Inc. | Single-capacitor inductive sense systems |
US10935620B2 (en) | 2019-02-26 | 2021-03-02 | Cirrus Logic, Inc. | On-chip resonance detection and transfer function mapping of resistive-inductive-capacitive sensors |
US11171641B2 (en) | 2019-06-03 | 2021-11-09 | Cirrus Logic, Inc. | Compensation for air gap changes and temperature changes in a resonant phase detector |
DE102019117673A1 (de) * | 2019-07-01 | 2021-01-07 | Infineon Technologies Ag | Spannungsmessung durch referenzschaltungsbasierte Impedanzdetektion |
US11079874B2 (en) | 2019-11-19 | 2021-08-03 | Cirrus Logic, Inc. | Virtual button characterization engine |
US11579030B2 (en) | 2020-06-18 | 2023-02-14 | Cirrus Logic, Inc. | Baseline estimation for sensor system |
US11835410B2 (en) | 2020-06-25 | 2023-12-05 | Cirrus Logic Inc. | Determination of resonant frequency and quality factor for a sensor system |
US11868540B2 (en) | 2020-06-25 | 2024-01-09 | Cirrus Logic Inc. | Determination of resonant frequency and quality factor for a sensor system |
US11619519B2 (en) | 2021-02-08 | 2023-04-04 | Cirrus Logic, Inc. | Predictive sensor tracking optimization in multi-sensor sensing applications |
US11808669B2 (en) | 2021-03-29 | 2023-11-07 | Cirrus Logic Inc. | Gain and mismatch calibration for a phase detector used in an inductive sensor |
US11821761B2 (en) * | 2021-03-29 | 2023-11-21 | Cirrus Logic Inc. | Maximizing dynamic range in resonant sensing |
US11507199B2 (en) | 2021-03-30 | 2022-11-22 | Cirrus Logic, Inc. | Pseudo-differential phase measurement and quality factor compensation |
US11979115B2 (en) | 2021-11-30 | 2024-05-07 | Cirrus Logic Inc. | Modulator feedforward compensation |
US11854738B2 (en) | 2021-12-02 | 2023-12-26 | Cirrus Logic Inc. | Slew control for variable load pulse-width modulation driver and load sensing |
DE102022212172A1 (de) * | 2022-11-16 | 2024-05-16 | Forschungszentrum Jülich GmbH | Verfahren und Vorrichtung zur Ermittlung sehr kleiner Kapazitätsänderungen |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS568563A (en) * | 1979-07-02 | 1981-01-28 | Toshiba Corp | Measuring device for reactance change |
JPH08278336A (ja) * | 1995-04-10 | 1996-10-22 | Murata Mfg Co Ltd | 静電センサ装置 |
JPH08307199A (ja) * | 1995-01-11 | 1996-11-22 | Yoshiro Tomikawa | 静電型変換手段の容量成分低減回路および静電型変換手段の駆動装置ならびに検出装置 |
JPH0949736A (ja) * | 1995-08-08 | 1997-02-18 | Yoshiro Tomikawa | 振動型ジャイロスコープの駆動装置 |
JP2000193737A (ja) * | 1998-12-25 | 2000-07-14 | Matsushita Electric Works Ltd | 超音波センサの送受波回路 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3047241B2 (ja) | 1989-10-11 | 2000-05-29 | 日立電子エンジニアリング株式会社 | 液状半導体形成材料気化供給装置 |
US5321366A (en) * | 1992-08-31 | 1994-06-14 | Murata Mfg. Co. Ltd. | Capacitance sensor apparatus of divided multi-electrode type |
JP3126872B2 (ja) | 1994-05-12 | 2001-01-22 | 三菱電機株式会社 | 燃料の混合比率検知装置 |
JP3233791B2 (ja) * | 1994-08-25 | 2001-11-26 | 株式会社山武 | 差動容量反転積分器及びこれを用いた静電容量変化量検出装置 |
US7102366B2 (en) * | 2001-02-09 | 2006-09-05 | Georgia-Pacific Corporation | Proximity detection circuit and method of detecting capacitance changes |
JP4098689B2 (ja) | 2002-09-11 | 2008-06-11 | 康雄 長 | 誘電体再生装置、誘電体記録装置及び誘電体記録再生装置 |
JP4455201B2 (ja) * | 2004-07-20 | 2010-04-21 | 富士通マイクロエレクトロニクス株式会社 | 検出回路 |
JP2007046927A (ja) | 2005-08-08 | 2007-02-22 | Wacoh Corp | 加速度・角速度センサおよびその製造方法 |
JP5341807B2 (ja) * | 2010-03-26 | 2013-11-13 | 株式会社東芝 | 加速度センサ |
-
2007
- 2007-10-18 US US12/738,240 patent/US8253426B2/en not_active Expired - Fee Related
- 2007-10-18 JP JP2009537822A patent/JP4975824B2/ja not_active Expired - Fee Related
- 2007-10-18 WO PCT/JP2007/070372 patent/WO2009050813A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS568563A (en) * | 1979-07-02 | 1981-01-28 | Toshiba Corp | Measuring device for reactance change |
JPH08307199A (ja) * | 1995-01-11 | 1996-11-22 | Yoshiro Tomikawa | 静電型変換手段の容量成分低減回路および静電型変換手段の駆動装置ならびに検出装置 |
JPH08278336A (ja) * | 1995-04-10 | 1996-10-22 | Murata Mfg Co Ltd | 静電センサ装置 |
JPH0949736A (ja) * | 1995-08-08 | 1997-02-18 | Yoshiro Tomikawa | 振動型ジャイロスコープの駆動装置 |
JP2000193737A (ja) * | 1998-12-25 | 2000-07-14 | Matsushita Electric Works Ltd | 超音波センサの送受波回路 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015040841A (ja) * | 2013-08-23 | 2015-03-02 | 株式会社前川製作所 | 固液二相流体の固相率測定装置、冷却システム及び固相率計測方法 |
US10551192B2 (en) | 2014-05-23 | 2020-02-04 | Hitachi Automotive Systems, Ltd. | Inertial sensor |
JPWO2018037463A1 (ja) * | 2016-08-22 | 2019-06-20 | パイオニア株式会社 | 静電容量検出装置及び光波長選択フィルタ装置 |
JP2019027943A (ja) * | 2017-07-31 | 2019-02-21 | 日立金属株式会社 | ガスセンサ |
US11054385B2 (en) | 2017-07-31 | 2021-07-06 | Hitachi Metals, Ltd. | Gas sensor |
JP2020187018A (ja) * | 2019-05-15 | 2020-11-19 | 株式会社東芝 | センサ |
JP7204576B2 (ja) | 2019-05-15 | 2023-01-16 | 株式会社東芝 | センサ |
CN110907880A (zh) * | 2019-11-27 | 2020-03-24 | 深圳天溯计量检测股份有限公司 | 一种电容测试仪的校准方法 |
WO2024024886A1 (ja) * | 2022-07-28 | 2024-02-01 | カヤバ株式会社 | 流体性状検出装置 |
Also Published As
Publication number | Publication date |
---|---|
US20100231239A1 (en) | 2010-09-16 |
JP4975824B2 (ja) | 2012-07-11 |
US8253426B2 (en) | 2012-08-28 |
JPWO2009050813A1 (ja) | 2011-02-24 |
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