WO2009050813A1 - 静電容量検出装置 - Google Patents

静電容量検出装置 Download PDF

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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
Application number
PCT/JP2007/070372
Other languages
English (en)
French (fr)
Inventor
Kiyoshi Tateishi
Yuji Tawaragi
Original Assignee
Pioneer Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Corporation filed Critical Pioneer Corporation
Priority to PCT/JP2007/070372 priority Critical patent/WO2009050813A1/ja
Priority to JP2009537822A priority patent/JP4975824B2/ja
Priority to US12/738,240 priority patent/US8253426B2/en
Publication of WO2009050813A1 publication Critical patent/WO2009050813A1/ja

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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

Abstract

　測定対象物体に付随する静電容量に応じた電気信号を出力する静電容量検出装置であり、測定対象物体に接触若しくは近接配置されるべき測定端子と、測定端子に接続されて共振回路を形成するインピーダンス変換回路と、共振回路に対して一定周波数の基準位相信号を供給する基準位相発振器と、共振回路に対する基準位相信号の印加に応じて共振回路から抽出される共振信号と基準位相信号との位相差を表す位相差信号を静電容量検出信号として出力する位相比較手段と、位相差信号に基づいて共振回路の共振周波数を調整する共振周波数調整手段と、を有することを特徴とする静電容量検出装置。
PCT/JP2007/070372 2007-10-18 2007-10-18 静電容量検出装置 WO2009050813A1 (ja)

Priority Applications (3)

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
JP2009537822A JP4975824B2 (ja) 2007-10-18 2007-10-18 静電容量検出装置
US12/738,240 US8253426B2 (en) 2007-10-18 2007-10-18 Capacitance detector

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)

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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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US10336361B2 (en) 2016-04-04 2019-07-02 Joyson Safety Systems Acquisition Llc Vehicle accessory control circuit
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US10725549B2 (en) 2018-03-29 2020-07-28 Cirrus Logic, Inc. Efficient detection of human machine interface interaction using 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
US10642435B2 (en) 2018-03-29 2020-05-05 Cirrus Logic, Inc. False triggering prevention in a resonant phase sensing system
US11537242B2 (en) 2018-03-29 2022-12-27 Cirrus Logic, Inc. Q-factor enhancement in resonant phase sensing of resistive-inductive-capacitive sensors
US10908200B2 (en) 2018-03-29 2021-02-02 Cirrus Logic, Inc. Resonant phase sensing of resistive-inductive-capacitive sensors
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DK3654532T3 (da) * 2018-11-16 2022-06-07 Bently Nevada Llc Proksimitetsregistreringssystem med komponentkompatibilitetstestning
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US11536758B2 (en) 2019-02-26 2022-12-27 Cirrus Logic, Inc. Single-capacitor inductive sense systems
US11402946B2 (en) 2019-02-26 2022-08-02 Cirrus Logic, Inc. Multi-chip synchronization in sensor applications
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DE102019117673A1 (de) * 2019-07-01 2021-01-07 Infineon Technologies Ag Spannungsmessung durch referenzschaltungsbasierte Impedanzdetektion
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US11821761B2 (en) * 2021-03-29 2023-11-21 Cirrus Logic Inc. Maximizing dynamic range in resonant sensing
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Cited By (9)

* Cited by examiner, † Cited by third party
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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