DE112015005072T5 - Kapazitäts-Messschaltung für kapazitive Messsensoren ohne Schutzelektrode, die in einem Modus zum Messen eines Verschiebungsstroms, der durch das Vorliegen eines geerdeten Objekts bewirkt wird, betrieben wird - Google Patents

Kapazitäts-Messschaltung für kapazitive Messsensoren ohne Schutzelektrode, die in einem Modus zum Messen eines Verschiebungsstroms, der durch das Vorliegen eines geerdeten Objekts bewirkt wird, betrieben wird Download PDF

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Publication number
DE112015005072T5
DE112015005072T5 DE112015005072.8T DE112015005072T DE112015005072T5 DE 112015005072 T5 DE112015005072 T5 DE 112015005072T5 DE 112015005072 T DE112015005072 T DE 112015005072T DE 112015005072 T5 DE112015005072 T5 DE 112015005072T5
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DE
Germany
Prior art keywords
digital
capacitance
signal
microcontroller
measuring
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
DE112015005072.8T
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German (de)
English (en)
Inventor
Laurent Lamesch
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.)
IEE International Electronics and Engineering SA
Original Assignee
IEE International Electronics and Engineering SA
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 IEE International Electronics and Engineering SA filed Critical IEE International Electronics and Engineering SA
Publication of DE112015005072T5 publication Critical patent/DE112015005072T5/de
Pending legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
    • B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
    • B60N2/0035—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor data transmission, e.g. wired connections or wireless transmitters therefor; characterised by the sensor data processing, e.g. seat sensor signal amplification or electric circuits for providing seat sensor information
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
    • B60N2210/10—Field detection presence sensors
    • B60N2210/12—Capacitive; Electric field
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/0153—Passenger detection systems using field detection presence sensors
    • B60R21/01532—Passenger detection systems using field detection presence sensors using electric or capacitive field sensors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
DE112015005072.8T 2014-11-06 2015-11-04 Kapazitäts-Messschaltung für kapazitive Messsensoren ohne Schutzelektrode, die in einem Modus zum Messen eines Verschiebungsstroms, der durch das Vorliegen eines geerdeten Objekts bewirkt wird, betrieben wird Pending DE112015005072T5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
LULU92592 2014-11-06
LU92592A LU92592B1 (enExample) 2014-11-06 2014-11-06
PCT/EP2015/075731 WO2016071407A1 (en) 2014-11-06 2015-11-04 Capacitance measurement circuit for sense-only capacitive sensors operated in mode of measuring a displacement current caused by the presence of a grounded object

Publications (1)

Publication Number Publication Date
DE112015005072T5 true DE112015005072T5 (de) 2017-07-13

Family

ID=51982732

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112015005072.8T Pending DE112015005072T5 (de) 2014-11-06 2015-11-04 Kapazitäts-Messschaltung für kapazitive Messsensoren ohne Schutzelektrode, die in einem Modus zum Messen eines Verschiebungsstroms, der durch das Vorliegen eines geerdeten Objekts bewirkt wird, betrieben wird

Country Status (5)

Country Link
US (1) US10222241B2 (enExample)
CN (1) CN107148556B (enExample)
DE (1) DE112015005072T5 (enExample)
LU (1) LU92592B1 (enExample)
WO (1) WO2016071407A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018222288A1 (de) * 2018-12-19 2020-06-25 Continental Teves Ag & Co. Ohg Hochfrequenzgenerator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6708463B2 (ja) * 2016-04-01 2020-06-10 ローム株式会社 漏電検出回路および漏電遮断器
US10649015B1 (en) * 2017-08-21 2020-05-12 Cirrus Logic, Inc. Capacitive sensor including compensation for phase shift
CN108075779A (zh) * 2017-11-29 2018-05-25 四川知微传感技术有限公司 一种高位电容式传感器检测系统
WO2019146281A1 (ja) * 2018-01-25 2019-08-01 アルプスアルパイン株式会社 センサ装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3329370B2 (ja) 1997-09-03 2002-09-30 日本電気株式会社 乗員検知システム
US8547114B2 (en) * 2006-11-14 2013-10-01 Cypress Semiconductor Corporation Capacitance to code converter with sigma-delta modulator
US8570053B1 (en) 2007-07-03 2013-10-29 Cypress Semiconductor Corporation Capacitive field sensor with sigma-delta modulator
DE102008023535B4 (de) * 2008-05-14 2011-05-12 Texas Instruments Deutschland Gmbh Elektronische Vorrichtung und Verfahren zur Auswertung einer variablen Kapazität
CN102067450B (zh) * 2008-06-13 2014-04-30 皇家飞利浦电子股份有限公司 电容性接近性设备和包括电容性接近性设备的电子设备
CN201837401U (zh) * 2010-08-14 2011-05-18 桂林广陆数字测控股份有限公司 绝对位置测量容栅位移传感器
DK2783493T3 (en) * 2011-11-25 2018-11-26 Widex As AUTOMATIC FSK VOTING CIRCUIT FOR A HEARING AND PROCEDURE
JP2013253796A (ja) * 2012-06-05 2013-12-19 Nsk Ltd レゾルバ励磁回路及び電動パワーステアリング装置の制御装置
LU92178B1 (en) * 2013-04-09 2014-10-10 Iee Sarl Capacitive sensing device
LU92179B1 (en) * 2013-04-09 2014-10-10 Iee Sarl Capacitive sensing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018222288A1 (de) * 2018-12-19 2020-06-25 Continental Teves Ag & Co. Ohg Hochfrequenzgenerator

Also Published As

Publication number Publication date
US10222241B2 (en) 2019-03-05
CN107148556A (zh) 2017-09-08
WO2016071407A1 (en) 2016-05-12
US20170314971A1 (en) 2017-11-02
CN107148556B (zh) 2019-12-03
LU92592B1 (enExample) 2016-05-09

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