CA2010625A1 - Accelerometer with dual-magnet sensing mass - Google Patents
Accelerometer with dual-magnet sensing massInfo
- Publication number
- CA2010625A1 CA2010625A1 CA002010625A CA2010625A CA2010625A1 CA 2010625 A1 CA2010625 A1 CA 2010625A1 CA 002010625 A CA002010625 A CA 002010625A CA 2010625 A CA2010625 A CA 2010625A CA 2010625 A1 CA2010625 A1 CA 2010625A1
- Authority
- CA
- Canada
- Prior art keywords
- sensing mass
- magnetic
- passage
- accelerometer
- spacer
- 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.)
- Abandoned
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 43
- 230000001133 acceleration Effects 0.000 claims abstract description 38
- 238000013016 damping Methods 0.000 claims abstract description 28
- 230000004907 flux Effects 0.000 claims abstract description 27
- 230000035699 permeability Effects 0.000 claims abstract description 13
- 230000004044 response Effects 0.000 claims abstract description 10
- 239000000696 magnetic material Substances 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 230000003247 decreasing effect Effects 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 10
- 230000006903 response to temperature Effects 0.000 claims description 4
- 230000000979 retarding effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052742 iron Inorganic materials 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 18
- 229910052802 copper Inorganic materials 0.000 description 18
- 239000010949 copper Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000002939 deleterious effect Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 101100166829 Mus musculus Cenpk gene Proteins 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 102100026827 Protein associated with UVRAG as autophagy enhancer Human genes 0.000 description 1
- 101710102978 Protein associated with UVRAG as autophagy enhancer Proteins 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/10—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
- B24B49/105—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means using eddy currents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/003—Details of instruments used for damping
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/006—Details of instruments used for thermal compensation
-
- 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
- G01P15/135—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 making use of contacts which are actuated by a movable inertial mass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
- H01H2300/052—Controlling, signalling or testing correct functioning of a switch
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US321,369 | 1989-03-09 | ||
| US07/321,369 US4933515A (en) | 1989-03-09 | 1989-03-09 | Accelerometer with dual-magnet sensing mass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2010625A1 true CA2010625A1 (en) | 1990-09-09 |
Family
ID=23250331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002010625A Abandoned CA2010625A1 (en) | 1989-03-09 | 1990-02-21 | Accelerometer with dual-magnet sensing mass |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4933515A (show.php) |
| EP (1) | EP0386942A3 (show.php) |
| JP (1) | JPH02281524A (show.php) |
| KR (1) | KR930001731B1 (show.php) |
| AU (1) | AU620219B2 (show.php) |
| CA (1) | CA2010625A1 (show.php) |
Families Citing this family (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6270116B1 (en) | 1992-05-05 | 2001-08-07 | Automotive Technologies International, Inc. | Apparatus for evaluating occupancy of a seat |
| US6116639A (en) * | 1994-05-09 | 2000-09-12 | Automotive Technologies International, Inc. | Vehicle interior identification and monitoring system |
| US6820897B2 (en) | 1992-05-05 | 2004-11-23 | Automotive Technologies International, Inc. | Vehicle object detection system and method |
| US6513833B2 (en) | 1992-05-05 | 2003-02-04 | Automotive Technologies International, Inc. | Vehicular occupant motion analysis system |
| US6168198B1 (en) | 1992-05-05 | 2001-01-02 | Automotive Technologies International, Inc. | Methods and arrangements for controlling an occupant restraint device in a vehicle |
| US6422595B1 (en) | 1992-05-05 | 2002-07-23 | Automotive Technologies International, Inc. | Occupant position sensor and method and arrangement for controlling a vehicular component based on an occupant's position |
| US6869100B2 (en) | 1992-05-05 | 2005-03-22 | Automotive Technologies International, Inc. | Method and apparatus for controlling an airbag |
| US6712387B1 (en) | 1992-05-05 | 2004-03-30 | Automotive Technologies International, Inc. | Method and apparatus for controlling deployment of a side airbag |
| US6942248B2 (en) | 1992-05-05 | 2005-09-13 | Automotive Technologies International, Inc. | Occupant restraint device control system and method |
| US6910711B1 (en) | 1992-05-05 | 2005-06-28 | Automotive Technologies International, Inc. | Method for controlling deployment of an occupant protection device |
| US6412813B1 (en) | 1992-05-05 | 2002-07-02 | Automotive Technologies International Inc. | Method and system for detecting a child seat |
| US6039139A (en) * | 1992-05-05 | 2000-03-21 | Automotive Technologies International, Inc. | Method and system for optimizing comfort of an occupant |
| US7467809B2 (en) | 1992-05-05 | 2008-12-23 | Automotive Technologies International, Inc. | Vehicular occupant characteristic determination system and method |
| US6778672B2 (en) | 1992-05-05 | 2004-08-17 | Automotive Technologies International Inc. | Audio reception control arrangement and method for a vehicle |
| US6735506B2 (en) | 1992-05-05 | 2004-05-11 | Automotive Technologies International, Inc. | Telematics system |
| US5153393A (en) * | 1990-03-22 | 1992-10-06 | David S. Breed | Crash sensor for a passive motor vehicle occupant restraint system |
| KR950011297B1 (ko) * | 1990-07-16 | 1995-09-30 | 센서 테크놀로지 가부시까기이샤 | 충돌센서 |
| JP2884742B2 (ja) | 1990-08-23 | 1999-04-19 | タカタ株式会社 | 加速度センサの製作方法 |
| JPH04104061A (ja) * | 1990-08-23 | 1992-04-06 | Takata Kk | 加速度センサ |
| US5149925A (en) * | 1990-09-05 | 1992-09-22 | Automotive Systems Laboratory, Inc. | Quick-response accelerometer |
| US5369231A (en) * | 1990-09-05 | 1994-11-29 | Automotive Systems Laboratory, Inc. | Quick-response accelerometer with increased contact dwell time |
| US5430334A (en) * | 1990-11-19 | 1995-07-04 | Echlin, Inc. | Impact sensor for vehicle safety restraint system |
| US5608270A (en) * | 1990-11-19 | 1997-03-04 | Meister; Jack B. | Vehicle safety restraint system with linear output impact sensor |
| DE59007876D1 (de) * | 1990-12-06 | 1995-01-12 | Siemens Ag | Crashsensor für ein Rückhaltesystem eines Fahrzeuges. |
| JP3030864B2 (ja) * | 1990-12-25 | 2000-04-10 | タカタ株式会社 | 加速度センサ |
| JP3028609B2 (ja) * | 1990-12-25 | 2000-04-04 | タカタ株式会社 | 加速度センサ |
| DE4107853A1 (de) * | 1991-03-12 | 1992-09-17 | Geraberger Thermometerwerk Gmb | Elektronisches fieberthermometer |
| US5178410A (en) * | 1991-06-14 | 1993-01-12 | Breed Automotive Technology, Inc. | Velocity change sensor with lateral shock absorber |
| JPH05273228A (ja) * | 1992-03-30 | 1993-10-22 | Takata Kk | 加速度センサ |
| US6254127B1 (en) | 1992-05-05 | 2001-07-03 | Automotive Technologies International Inc. | Vehicle occupant sensing system including a distance-measuring sensor on an airbag module or steering wheel assembly |
| US6325414B2 (en) | 1992-05-05 | 2001-12-04 | Automotive Technologies International Inc. | Method and arrangement for controlling deployment of a side airbag |
| US6793242B2 (en) | 1994-05-09 | 2004-09-21 | Automotive Technologies International, Inc. | Method and arrangement for obtaining and conveying information about occupancy of a vehicle |
| JPH0674970A (ja) * | 1992-08-25 | 1994-03-18 | Takata Kk | 加速度センサ |
| US5393943A (en) * | 1992-08-25 | 1995-02-28 | Takata Corporation | Acceleration sensor |
| JPH0682475A (ja) * | 1992-08-31 | 1994-03-22 | Takata Kk | 加速度センサ |
| DE4492128C2 (de) | 1993-03-31 | 2003-01-02 | Automotive Tech Int | Positions- und Geschwindigkeitssensor für Fahrzeuginsassen |
| DE4447960B4 (de) * | 1993-03-31 | 2007-09-27 | Automotive Technologies International, Inc. | Positions- und Geschwindigkeitssensor für Fahrzeuginsassen |
| US5901978A (en) * | 1994-05-09 | 1999-05-11 | Automotive Technologies International, Inc. | Method and apparatus for detecting the presence of a child seat |
| US5614700A (en) * | 1994-10-11 | 1997-03-25 | Automotive Systems Laboratory, Inc. | Integrating accelerometer capable of sensing off-axis inputs |
| US5635887A (en) * | 1996-02-01 | 1997-06-03 | Sentrol, Inc. | Compact rare earth magnet security switch assembly |
| US5844458A (en) * | 1997-04-08 | 1998-12-01 | Slc Technologies, Inc. | Resilient and compressible magnet module for door channel installation |
| US6064928A (en) * | 1997-04-24 | 2000-05-16 | Automation Systems Laboratory, Inc. | Mechanical sensor diagnostic method and system |
| US6161439A (en) * | 1997-05-12 | 2000-12-19 | Stanley; James Gregory | Seat belt tension prediction |
| DE19757289C2 (de) * | 1997-12-22 | 1999-11-18 | Siemens Ag | Bidirektionaler Beschleunigungssensor |
| FR2788163B1 (fr) * | 1998-12-30 | 2001-03-16 | Sextant Avionique | Actionneur electromagnetique equipe de moyens d'ajustement de la position de son element polaire mobile |
| US6087951A (en) * | 1999-04-05 | 2000-07-11 | The Cherry Corporation | Magnetic accelerometer |
| US6736231B2 (en) | 2000-05-03 | 2004-05-18 | Automotive Technologies International, Inc. | Vehicular occupant motion detection system using radar |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3061754A (en) * | 1960-03-18 | 1962-10-30 | Gen Precision Inc | Temperature compensating element for a traveling wave tube periodic array |
| US4093836A (en) * | 1976-06-28 | 1978-06-06 | King Radio Corporation | Acceleration sensitive switch |
| AU3825078A (en) * | 1977-10-17 | 1980-01-24 | Sundstrand Data Control | Servoed accelerometer |
| US4266107A (en) * | 1979-08-20 | 1981-05-05 | The United States Of America As Represented By The United States Department Of Energy | Acceleration switch |
| DE3727351A1 (de) * | 1987-06-06 | 1988-12-22 | Bosch Gmbh Robert | Mechanisch betaetigter beschleunigungsaufnehmer |
| US4873401A (en) * | 1988-09-19 | 1989-10-10 | Bendix Electronics Limited | Electromagnetic damped inertia sensor |
| US4827091A (en) * | 1988-09-23 | 1989-05-02 | Automotive Systems Laboratory, Inc. | Magnetically-damped, testable accelerometer |
-
1989
- 1989-03-09 US US07/321,369 patent/US4933515A/en not_active Expired - Lifetime
-
1990
- 1990-02-21 CA CA002010625A patent/CA2010625A1/en not_active Abandoned
- 1990-03-01 EP EP19900302192 patent/EP0386942A3/en not_active Withdrawn
- 1990-03-02 AU AU50693/90A patent/AU620219B2/en not_active Ceased
- 1990-03-09 KR KR1019900003132A patent/KR930001731B1/ko not_active Expired - Lifetime
- 1990-03-09 JP JP2056816A patent/JPH02281524A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| KR900014893A (ko) | 1990-10-25 |
| JPH0532853B2 (show.php) | 1993-05-18 |
| US4933515A (en) | 1990-06-12 |
| EP0386942A3 (en) | 1992-11-25 |
| EP0386942A2 (en) | 1990-09-12 |
| AU620219B2 (en) | 1992-02-13 |
| AU5069390A (en) | 1990-09-20 |
| KR930001731B1 (ko) | 1993-03-12 |
| JPH02281524A (ja) | 1990-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4933515A (en) | Accelerometer with dual-magnet sensing mass | |
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| US4922065A (en) | Temperature-compensating accelerometer | |
| US5149925A (en) | Quick-response accelerometer | |
| EP0434694A1 (en) | Electromagnetic damped inertia sensor | |
| US4914263A (en) | Magnetically-damped, testable accelerometer | |
| JP3194950B2 (ja) | センサ | |
| US5614700A (en) | Integrating accelerometer capable of sensing off-axis inputs | |
| US5372041A (en) | Acceleration sensor with magnetic flux directing device | |
| US5369231A (en) | Quick-response accelerometer with increased contact dwell time | |
| US6556114B1 (en) | Electromagnetic actuator equipped with means for adjusting its mobile polar element | |
| GB2367110A (en) | A vibration isolation mount | |
| JP2004184364A (ja) | 変位量センサ | |
| Hashimoto et al. | Development of a thermally controlled magnetization actuator (TCMA) for a micromachined motor | |
| JPH01100462A (ja) | センサ | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |