DE602006009611D1 - Freifalldetektor und Freifalldetektionsverfahren - Google Patents

Freifalldetektor und Freifalldetektionsverfahren

Info

Publication number
DE602006009611D1
DE602006009611D1 DE602006009611T DE602006009611T DE602006009611D1 DE 602006009611 D1 DE602006009611 D1 DE 602006009611D1 DE 602006009611 T DE602006009611 T DE 602006009611T DE 602006009611 T DE602006009611 T DE 602006009611T DE 602006009611 D1 DE602006009611 D1 DE 602006009611D1
Authority
DE
Germany
Prior art keywords
free
fall
detection method
detector
fall detection
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.)
Active
Application number
DE602006009611T
Other languages
English (en)
Inventor
Ernesto Lasalandra
Tommaso Ungaretti
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.)
STMicroelectronics SRL
Original Assignee
STMicroelectronics SRL
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 STMicroelectronics SRL filed Critical STMicroelectronics SRL
Publication of DE602006009611D1 publication Critical patent/DE602006009611D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G11B19/041—Detection or prevention of read or write errors
    • G11B19/043—Detection or prevention of read or write errors by detecting a free-fall condition
    • 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
    • G01P15/0891—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 with indication of predetermined acceleration values
    • 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
    • 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
    • G01P15/13—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 measuring the force required to restore a proofmass subjected to inertial forces to a null position
    • G01P15/131—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 measuring the force required to restore a proofmass subjected to inertial forces to a null position with electrostatic counterbalancing means
    • 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
    • G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/12—Raising and lowering; Back-spacing or forward-spacing along track; Returning to starting position otherwise than during transducing operation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gyroscopes (AREA)
DE602006009611T 2006-01-20 2006-01-20 Freifalldetektor und Freifalldetektionsverfahren Active DE602006009611D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06425026A EP1811309B1 (de) 2006-01-20 2006-01-20 Freifalldetektor und Freifalldetektionsverfahren

Publications (1)

Publication Number Publication Date
DE602006009611D1 true DE602006009611D1 (de) 2009-11-19

Family

ID=36580470

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006009611T Active DE602006009611D1 (de) 2006-01-20 2006-01-20 Freifalldetektor und Freifalldetektionsverfahren

Country Status (4)

Country Link
US (1) US7802476B2 (de)
EP (1) EP1811309B1 (de)
JP (1) JP5148120B2 (de)
DE (1) DE602006009611D1 (de)

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* Cited by examiner, † Cited by third party
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JP5043549B2 (ja) * 2007-07-30 2012-10-10 キヤノン株式会社 電子機器および撮像装置、電子機器の制御方法
JP5045616B2 (ja) * 2007-08-30 2012-10-10 株式会社デンソー 容量式物理量検出装置
JP5603597B2 (ja) 2007-09-21 2014-10-08 株式会社村田製作所 落下検知装置、磁気ディスク装置および携帯電子機器
JP5067257B2 (ja) * 2008-05-15 2012-11-07 富士通株式会社 落下を検知する情報機器
JP4905592B2 (ja) * 2008-07-23 2012-03-28 株式会社村田製作所 落下検知装置、磁気ディスク装置および携帯電子機器
US8497690B2 (en) * 2008-10-27 2013-07-30 Microchip Technology Incorporated Automated capacitive touch scan
CH700376A2 (de) * 2009-02-11 2010-08-13 Baumer Innotec Ag Kapazitiver Sensor und Verfahren zur kapazitiven Erfassung eines Objektabstandes.
JP5414546B2 (ja) 2010-01-12 2014-02-12 キヤノン株式会社 容量検出型の電気機械変換素子
DE102010002656A1 (de) * 2010-03-08 2011-09-08 Robert Bosch Gmbh Frei-Fall Erkennungssystem zum Schutz von Festplatten in mobilen Geräten
US8363344B2 (en) 2010-10-04 2013-01-29 Dell Products, Lp System and method for improved free fall detection
US9047907B2 (en) 2011-06-23 2015-06-02 Western Digital Technologies, Inc. Electronic device avoiding false detection of free fall event based on detected operating modes
US9195269B2 (en) * 2013-03-27 2015-11-24 Nvidia Corporation System and method for mitigating shock failure in an electronic device
KR20140123258A (ko) * 2013-04-12 2014-10-22 삼성전기주식회사 3축 가속도 센서의 가속도 측정 회로
US8953274B1 (en) 2013-06-06 2015-02-10 Western Digital Technologies, Inc. Deceleration of spindle motor in disk drive
US8885285B1 (en) 2013-07-23 2014-11-11 Western Digital Technologies, Inc. Impact detection for data storage device
US9076471B1 (en) 2013-07-31 2015-07-07 Western Digital Technologies, Inc. Fall detection scheme using FFS
US9058826B1 (en) 2014-02-13 2015-06-16 Western Digital Technologies, Inc. Data storage device detecting free fall condition from disk speed variations
CN112098809B (zh) * 2020-09-25 2023-03-14 华东光电集成器件研究所 一种mems微镜晶圆级全自动电学测试方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054833A (en) * 1976-06-11 1977-10-18 Setra Systems, Inc. Capacitance measuring system
JP3216455B2 (ja) * 1994-12-22 2001-10-09 株式会社村田製作所 容量型静電サーボ加速度センサ
JP3262013B2 (ja) * 1997-02-24 2002-03-04 三菱電機株式会社 容量型センサインターフェース回路
JP4178658B2 (ja) * 1998-06-30 2008-11-12 株式会社デンソー 容量式物理量検出装置
JP2000249717A (ja) * 1999-02-26 2000-09-14 Japan Aviation Electronics Industry Ltd 無重力センサ
JP2001174321A (ja) * 1999-12-15 2001-06-29 Matsushita Electric Ind Co Ltd 振動情報取得装置およびそれを用いた感震装置
US6879056B2 (en) * 2000-12-29 2005-04-12 Intel Corporation Converting sensed signals
ITTO20010157A1 (it) * 2001-02-21 2002-08-21 St Microelectronics Srl Metodo e circuito di rilevamento di spostamenti tramite sensori micro-elettro-meccanici con compensazione di capacita' parassite e di movime
ITTO20010699A1 (it) * 2001-07-17 2003-01-17 St Microelectronics Srl Metodo e circuito di rilevamento di spostamenti tramite sensori micro-elettro-meccanici con compensazione di capacita' parassite e di movime
JP3978728B2 (ja) * 2003-07-17 2007-09-19 日立金属株式会社 多軸センサ装置
JP2005241503A (ja) * 2004-02-27 2005-09-08 Hitachi Metals Ltd 落下時加速度履歴記録装置及びそれに用いられる加速度センサ装置
US7078916B2 (en) * 2004-04-06 2006-07-18 Analog Devices, Inc. Linearity enhancement for capacitive sensors
US7562573B2 (en) * 2005-07-21 2009-07-21 Evigia Systems, Inc. Integrated sensor and circuitry and process therefor

Also Published As

Publication number Publication date
US20070188969A1 (en) 2007-08-16
EP1811309A9 (de) 2007-11-14
EP1811309B1 (de) 2009-10-07
JP2007192826A (ja) 2007-08-02
US7802476B2 (en) 2010-09-28
JP5148120B2 (ja) 2013-02-20
EP1811309A1 (de) 2007-07-25

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