CN107148556B - 确定保护感测电容性传感器的电容的电容测量电路和方法 - Google Patents

确定保护感测电容性传感器的电容的电容测量电路和方法 Download PDF

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Publication number
CN107148556B
CN107148556B CN201580057451.1A CN201580057451A CN107148556B CN 107148556 B CN107148556 B CN 107148556B CN 201580057451 A CN201580057451 A CN 201580057451A CN 107148556 B CN107148556 B CN 107148556B
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China
Prior art keywords
capacitance
digital
output
signal
wave generator
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CN201580057451.1A
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English (en)
Chinese (zh)
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CN107148556A (zh
Inventor
L·拉梅施
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IEE International Electronics and Engineering SA
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IEE International Electronics and Engineering SA
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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)
CN201580057451.1A 2014-11-06 2015-11-04 确定保护感测电容性传感器的电容的电容测量电路和方法 Active CN107148556B (zh)

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 (2)

Publication Number Publication Date
CN107148556A CN107148556A (zh) 2017-09-08
CN107148556B true CN107148556B (zh) 2019-12-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201580057451.1A Active CN107148556B (zh) 2014-11-06 2015-11-04 确定保护感测电容性传感器的电容的电容测量电路和方法

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)

Families Citing this family (5)

* 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
DE102018222288A1 (de) * 2018-12-19 2020-06-25 Continental Teves Ag & Co. Ohg Hochfrequenzgenerator

Citations (8)

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US20090295460A1 (en) * 2008-05-14 2009-12-03 Texas Instruments Deutschland Gmbh Electronic device and method for evaluating a variable capacitance
CN102067450A (zh) * 2008-06-13 2011-05-18 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
US20120043973A1 (en) * 2006-11-14 2012-02-23 Viktor Kremin Capacitance to code converter with sigma-delta modulator
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
CN103947169A (zh) * 2011-11-25 2014-07-23 唯听助听器公司 用于助听器的自动fsk调谐电路和方法
WO2014166881A1 (en) * 2013-04-09 2014-10-16 Iee International Electronics & Engineering S.A. Capacitive sensing device
WO2014166780A1 (en) * 2013-04-09 2014-10-16 Iee International Electronics & Engineering S.A. Capacitive sensing device

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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
US8570053B1 (en) 2007-07-03 2013-10-29 Cypress Semiconductor Corporation Capacitive field sensor with sigma-delta modulator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120043973A1 (en) * 2006-11-14 2012-02-23 Viktor Kremin Capacitance to code converter with sigma-delta modulator
US20090295460A1 (en) * 2008-05-14 2009-12-03 Texas Instruments Deutschland Gmbh Electronic device and method for evaluating a variable capacitance
CN102067450A (zh) * 2008-06-13 2011-05-18 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
CN103947169A (zh) * 2011-11-25 2014-07-23 唯听助听器公司 用于助听器的自动fsk调谐电路和方法
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
WO2014166881A1 (en) * 2013-04-09 2014-10-16 Iee International Electronics & Engineering S.A. Capacitive sensing device
WO2014166780A1 (en) * 2013-04-09 2014-10-16 Iee International Electronics & Engineering S.A. Capacitive sensing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A Low-Power, Wide-Dynamic-Range Semi-Digital Universal Sensor Readout Circuit Using Pulsewidth Modulation;JuliaHsin-LinLu et al.;《IEEE SENSORS JOURNAL》;20110531;第11卷(第5期);第1134-1144页 *

Also Published As

Publication number Publication date
US10222241B2 (en) 2019-03-05
DE112015005072T5 (de) 2017-07-13
CN107148556A (zh) 2017-09-08
WO2016071407A1 (en) 2016-05-12
US20170314971A1 (en) 2017-11-02
LU92592B1 (enExample) 2016-05-09

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