JP2001512836A - 非常に小さな容量を求めるための方法およびこれにより構想されたセンサ - Google Patents

非常に小さな容量を求めるための方法およびこれにより構想されたセンサ

Info

Publication number
JP2001512836A
JP2001512836A JP2000506535A JP2000506535A JP2001512836A JP 2001512836 A JP2001512836 A JP 2001512836A JP 2000506535 A JP2000506535 A JP 2000506535A JP 2000506535 A JP2000506535 A JP 2000506535A JP 2001512836 A JP2001512836 A JP 2001512836A
Authority
JP
Japan
Prior art keywords
capacitor
measuring
voltage
capacitance
charge
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2000506535A
Other languages
English (en)
Japanese (ja)
Inventor
フォン バッセ パウル−ヴェルナー
ヴィラー ヨーゼフ
シャイター トーマス
マルクシュタイナー シュテファン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of JP2001512836A publication Critical patent/JP2001512836A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
JP2000506535A 1997-08-05 1998-07-23 非常に小さな容量を求めるための方法およびこれにより構想されたセンサ Pending JP2001512836A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19733865.8 1997-08-05
DE19733865 1997-08-05
PCT/DE1998/002078 WO1999008121A1 (fr) 1997-08-05 1998-07-23 Procede pour determiner de tres faibles capacites et detecteur conçu a cet effet

Publications (1)

Publication Number Publication Date
JP2001512836A true JP2001512836A (ja) 2001-08-28

Family

ID=7838065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000506535A Pending JP2001512836A (ja) 1997-08-05 1998-07-23 非常に小さな容量を求めるための方法およびこれにより構想されたセンサ

Country Status (7)

Country Link
EP (1) EP1000362A1 (fr)
JP (1) JP2001512836A (fr)
KR (1) KR20010022575A (fr)
CN (1) CN1266494A (fr)
BR (1) BR9811837A (fr)
MX (1) MXPA00001276A (fr)
WO (1) WO1999008121A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002257508A (ja) * 2001-03-05 2002-09-11 Mitsubishi Electric Corp 凹凸検出センサ
WO2013153845A1 (fr) * 2012-04-10 2013-10-17 オムロン株式会社 Appareil de détection d'énergie de vibration et système de détection d'énergie de vibration

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10333154A1 (de) * 2003-07-22 2005-02-24 Vega Grieshaber Kg Verfahren und Schaltungsanordnung zum Auswerten einer Messkapazität
JP4036798B2 (ja) * 2003-07-29 2008-01-23 アルプス電気株式会社 容量検出回路および検出方法並びに指紋センサ
US7075316B2 (en) * 2003-10-02 2006-07-11 Alps Electric Co., Ltd. Capacitance detector circuit, capacitance detection method, and fingerprint sensor using the same
CN100394202C (zh) * 2006-01-24 2008-06-11 东北大学 高压交流激励法微小电容测量电路
CN101526989B (zh) * 2008-03-06 2011-02-09 奇景光电股份有限公司 电容式指纹感应器及其面板
FR2938344B1 (fr) * 2008-11-07 2010-11-19 Continental Automotive France Dispositif de mesure d'une variation de la capacitance d'une structure capacitive variable
CN103679163B (zh) * 2012-09-18 2017-03-22 成都方程式电子有限公司 新型电容式指纹图像采集系统
CN105631432B (zh) * 2016-01-04 2020-12-08 京东方科技集团股份有限公司 指纹探测电路及驱动方法和显示装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039940A (en) * 1976-07-30 1977-08-02 General Electric Company Capacitance sensor
FR2675583B1 (fr) * 1991-04-18 1993-08-27 Marelli Autronica Procede et dispositif de mesure de condensateur.
US5907627A (en) * 1995-11-06 1999-05-25 Dew Engineering And Development Limited Contact imaging device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002257508A (ja) * 2001-03-05 2002-09-11 Mitsubishi Electric Corp 凹凸検出センサ
JP4511064B2 (ja) * 2001-03-05 2010-07-28 三菱電機株式会社 凹凸検出センサ
WO2013153845A1 (fr) * 2012-04-10 2013-10-17 オムロン株式会社 Appareil de détection d'énergie de vibration et système de détection d'énergie de vibration
JP2013217804A (ja) * 2012-04-10 2013-10-24 Omron Corp 振動エネルギー検出装置、振動エネルギー検出システム

Also Published As

Publication number Publication date
EP1000362A1 (fr) 2000-05-17
KR20010022575A (ko) 2001-03-26
CN1266494A (zh) 2000-09-13
BR9811837A (pt) 2000-08-15
MXPA00001276A (es) 2002-03-27
WO1999008121A1 (fr) 1999-02-18

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Effective date: 20011113