MY128316A - Eddy current measuring device - Google Patents
Eddy current measuring deviceInfo
- Publication number
- MY128316A MY128316A MYPI9705980A MY128316A MY 128316 A MY128316 A MY 128316A MY PI9705980 A MYPI9705980 A MY PI9705980A MY 128316 A MY128316 A MY 128316A
- Authority
- MY
- Malaysia
- Prior art keywords
- permanent magnet
- eddy current
- magnetized
- measuring device
- indicator
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents
- G01P3/495—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents where the indicating means responds to forces produced by the eddy currents and the generating magnetic field
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measuring Magnetic Variables (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
AN EDDY CURRENT MEASURING DEVICE FOR A SPEED INDICATOR HAS A RADIALLY MAGNETIZED PERMANENT MAGNET (4) AND A SECOND AXIALLY MAGNETIZED PERMANENT MAGNET (8). THE RADIALLY MAGNETIZED PERMANENT MAGNET (4) SERVES TO GENERATE EDDY CURRENTS IN AN EDDY CURRENT BODY (2), WHICH CONTROLS THE EXCURSION OF AN INDICATOR (7) ATTACHED TO AN INDICATOR SHAFT (1). THE SECOND, AXIALLY MAGNETIZED, PERMANENT MAGNET (8) IS POSITIONED VIS-A-VIS A FIXED HALL ELEMENT (10) AT A MINIMUM DISTANCE FROM IT. TO GENERATE A PARTICULARLY STRONG MAGNETIC FIELD, THE PERMANENT MAGNET (4) OF THE EDDY CURRENT (2) IS DIAMETRICALLY MAGNETIZED. THE SECOND PERMANENT MAGNET (8) HAS SEVERAL MAGNETIC POLE PAIRS AND FACILITATES A HIGH RESOLUTION OF THE ANGLE OF ROTATION OF A DRIVE SHAFT (3).(FIGURE 1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996152082 DE19652082A1 (en) | 1996-12-14 | 1996-12-14 | Eddy current measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
MY128316A true MY128316A (en) | 2007-01-31 |
Family
ID=7814726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MYPI9705980 MY128316A (en) | 1996-12-14 | 1997-12-11 | Eddy current measuring device |
Country Status (7)
Country | Link |
---|---|
JP (1) | JP2001506755A (en) |
KR (1) | KR100733162B1 (en) |
CN (1) | CN1120374C (en) |
BR (1) | BR9714011A (en) |
DE (1) | DE19652082A1 (en) |
MY (1) | MY128316A (en) |
WO (1) | WO1998027436A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050035251A (en) * | 2002-08-01 | 2005-04-15 | 젠트론 아크티엔게젤샤프트 | Magnetic field sensor and method for operating said magnetic field sensor |
JP2004219383A (en) * | 2003-01-17 | 2004-08-05 | Central Japan Railway Co | Wheel speed detection system |
DE102006047896A1 (en) * | 2006-10-10 | 2008-04-17 | Volkswagen Ag | Displaying device for instrument cluster of motor vehicle, has magnetofluid arranged between indicator device and stationary part of displaying device, where magnetic field holds magnetofluid that dampens oscillations of displaying device |
US20150035517A1 (en) * | 2013-07-30 | 2015-02-05 | Delphi Technologies, Inc. | Vehicle instrument panel with magnet equipped pointer |
US10459115B2 (en) * | 2015-03-25 | 2019-10-29 | Daniel Rudolph Krugel | Method and device for detecting a material |
KR20230053391A (en) | 2021-10-14 | 2023-04-21 | 현대자동차주식회사 | Appatus and method for measuring eddy current loss of magnet |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT8053356V0 (en) * | 1980-07-03 | 1980-07-03 | Borletti Spa | IMPROVEMENT OF A SPEEDOMETER DEVICE DRIVEN BY AN ELECTRIC MOTOR |
KR0108468Y1 (en) * | 1993-07-26 | 1995-02-18 | Jung Young Choon | Brushless dc motor |
DE4339599A1 (en) | 1993-11-20 | 1995-06-01 | Vdo Schindling | Eddy current operated measuring mechanism for vehicle tachometer |
DE4440214C2 (en) * | 1994-11-10 | 1997-08-14 | Itt Ind Gmbh Deutsche | Encoder with Hall sensors |
-
1996
- 1996-12-14 DE DE1996152082 patent/DE19652082A1/en not_active Withdrawn
-
1997
- 1997-12-04 CN CN 97180620 patent/CN1120374C/en not_active Expired - Fee Related
- 1997-12-04 JP JP52724498A patent/JP2001506755A/en active Pending
- 1997-12-04 BR BR9714011-2A patent/BR9714011A/en not_active IP Right Cessation
- 1997-12-04 KR KR1019997004776A patent/KR100733162B1/en not_active IP Right Cessation
- 1997-12-04 WO PCT/EP1997/006772 patent/WO1998027436A1/en not_active Application Discontinuation
- 1997-12-11 MY MYPI9705980 patent/MY128316A/en unknown
Also Published As
Publication number | Publication date |
---|---|
KR20000057320A (en) | 2000-09-15 |
DE19652082A1 (en) | 1998-06-18 |
WO1998027436A1 (en) | 1998-06-25 |
CN1240513A (en) | 2000-01-05 |
CN1120374C (en) | 2003-09-03 |
KR100733162B1 (en) | 2007-06-27 |
BR9714011A (en) | 2000-05-09 |
JP2001506755A (en) | 2001-05-22 |
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