WO1998044313B1 - Magnetically actuated control device - Google Patents
Magnetically actuated control deviceInfo
- Publication number
- WO1998044313B1 WO1998044313B1 PCT/US1998/005758 US9805758W WO9844313B1 WO 1998044313 B1 WO1998044313 B1 WO 1998044313B1 US 9805758 W US9805758 W US 9805758W WO 9844313 B1 WO9844313 B1 WO 9844313B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic
- control device
- magnet
- magnetic portion
- disposed
- Prior art date
Links
- 230000004907 flux Effects 0.000 claims abstract 6
- 206010063834 Oversensing Diseases 0.000 claims 3
- 238000010276 construction Methods 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 3
- 230000002349 favourable Effects 0.000 claims 2
- 239000006247 magnetic powder Substances 0.000 claims 2
- 239000011159 matrix material Substances 0.000 claims 2
- 229920000642 polymer Polymers 0.000 claims 2
- 230000005355 Hall effect Effects 0.000 claims 1
- 230000001419 dependent Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000011156 evaluation Methods 0.000 claims 1
- 230000001133 acceleration Effects 0.000 abstract 1
Abstract
A control device (60) useful for adjusting the position, velocity, or acceleration of an apparatus is provided. The control device (60) includes a shaped integral magnet (14) having outer walls of a desired curvature. Radially disposed about the outer walls are one or more magnetic sensors (24). Movement of the magnet (14) changes the magnetic flux passing through the sensors (24), generating a unique transfer function output signal useful to control the apparatus. By varying the curvature of the outer walls, the transfer function voltage curve is tailored for specific applications.
Claims
AMENDED CLAIMS
[received by the International Bureau on 15 October 1998 (15.10.98); original claims 1, 3, 7-8, 14, 18 and 19 amended; remaining claims unchanged (4 pages)]
1. A control device (40), characterized by: a component (10) having a magnetic portion
(14) , said magnetic portion (14) having uniformly convex sidewalls that terminate at opposing polar portions symmetrically disposed about an axially disposed hole (12) , said magnetic portion (14) further having a shape effective to provide a desired transfer function and a construction effective to minimize magnetic flux distortion, cross talk and hysteresis; a shaft (42) extending into said hole (12) ; at least one non-magnetic bushing (46) supporting said component (10) ; and at least one magnetic sensor (24) disposed adjacent to said magnetic portion (14) .
2. The control device (40) of characterized in that said magnetic portion (14) is comprised of a uniform mixture of magnetic powders dispersed in a polymeric matrix.
3. The control device (40) of claim 2 characterized in that said polar portions are planar.
■24-
7. A control device (60), characterized by: a component (10) having a magnetic portion (14) , said magnetic portion (14) having uniformly convex sidewalls that terminate at polar portions symmetrically disposed about an axially disposed hole (12) , said magnetic portion (14) further having a shape effective to provide a desired transfer function and a construction effective to minimize magnetic flux distortion, cross talk and hysteresis; a hollow shaft (42') having first and second opposing ends and extending through said hole (12) ; a handle (44) disposed at said first end of said hollow shaft (42'); a first magnet (68) disposed within said hollow shaft (42') in displacement from said component (10); at least one first magnetic sensor (24) disposed adjacent to said magnetic portion (14) ; and at least one second magnetic sensor (70) mounted to said hollow shaft (42') in apposition to said first magnet (14) .
8. The control device of claim 7 characterized in that said first magnet (68) is generally shaped as a cylinder and has north and south poles disposed along sidewalls of said cylinder.
9. The control device (60) of claim 8 characterized in that said first (24) and said second (70) magnetic sensors are Hall effect sensors.
-25-
14. The control device (60) of claim 13 characterized in that said opposing polar portions are planar.
15. The control device (60) of claim 14 characterized in that opposing ones of said planar polar portions are separated by a distance effective to provide said control device (60) with a desired angle of rotation.
16. The control device (60) of claim 15 characterized in that said magnetic portion (14) is coated with a low coefficient of friction polymer (22) .
17. The control device (60) of either claim 13 or claim 16 characterized in that said magnetic portion (14) has walls with first (26) and second (28) convex portions adjacent to respective north and south poles and a concave portion (30) disposed between said first (26) and second (28) convex portions.
-26
18. A control device (10), characterized by: a magnet in combination with one or more magnetic sensors, said magnet having a shape that is effective to provide an essentially linear relationship with said one or more magnetic sensors between angle position and magnetic flux density and a construction effective to minimize magnetic flux distortion, cross talk and hysteresis, said magnet being formed from a uniform mixture of magnetic powders dispersed in a polymeric matrix wherein said magnet has a shape that is essentially spheroidal with uniformly convex sidewalls that terminate at opposing polar portions.
19. The control device (10) of claim 18 characterized in that said magnet is coated with a low coefficient of friction polymer (22) .
-27-
STATEMENT UNDER ARTICLE 19
In reference to the above-identified International Application, this is a response to the International Search Report under PCT Article 18 and Rules 43 and 44 mailed 24 August, 1998 having a two month period for response that is set to expire on 24 October, 1998. Replacement pages 18, 20, 22 and 23 are provided to replace pages 18, 20, 22 and 23 as originally filed with the International Application. As a result of this amendment, claims 1, 3, 7, 8, 14, 18 and 19 have been amended. The remaining claims are unchanged.
As a result of this amendment, the independent claims have been amended to more precisely identify that the magnetic portion has uniformly convex walls that terminate at opposing polar portions. This limitation appeared originally in dependent claim 3 that the search report did not apply any references against. Accordingly, it is solicited that all claims should now be eligible for a favorable evaluation in the written opinion.
JP 58-66381 discloses a non-magnetic spheroidal member containing an embedded cylindrical magnet. Rotation of the spheroidal member in the presence of a magnetic sensor generates a sinusoidal output. The reference discloses that electronic signal processing is required to convert the sinusoidal output to a linear output.
There is nothing in JP 58-66381 to teach or suggest applicant's invention where a magnetic portion has uniformly convex sidewalls such that a constant air gap is maintained when the magnetic portion is rotated and a linear relationship exists between angle position and magnetic flux density without the need for electronic signal processing.
Favorable consideration in the written opinion is respectfully solicited.
-28-
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU65819/98A AU6581998A (en) | 1997-04-03 | 1998-03-25 | Magnetically actuated control device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/832,269 | 1997-04-03 | ||
US08/832,269 US5850142A (en) | 1997-04-03 | 1997-04-03 | Control device having a magnetic component with convex surfaces |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998044313A1 WO1998044313A1 (en) | 1998-10-08 |
WO1998044313B1 true WO1998044313B1 (en) | 1998-12-03 |
Family
ID=25261176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/005758 WO1998044313A1 (en) | 1997-04-03 | 1998-03-25 | Magnetically actuated control device |
Country Status (4)
Country | Link |
---|---|
US (1) | US5850142A (en) |
AU (1) | AU6581998A (en) |
TW (1) | TW486664B (en) |
WO (1) | WO1998044313A1 (en) |
Families Citing this family (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19753867B4 (en) * | 1997-12-04 | 2007-07-05 | Linde Ag | operating lever |
US6225980B1 (en) * | 1998-02-06 | 2001-05-01 | Carnegie Mellon University | Multi-functional, rotary dial input device for portable computers |
JP2001289928A (en) * | 2000-04-07 | 2001-10-19 | Yazaki Corp | Nonlinear hall ic |
US6466004B1 (en) | 2000-04-27 | 2002-10-15 | Sensotec, Inc. | Apparatus and method for measuring weld circuit |
JP2002007059A (en) * | 2000-06-27 | 2002-01-11 | Nagano Fujitsu Component Kk | Device for inputting coordinates |
JP4291936B2 (en) * | 2000-07-12 | 2009-07-08 | カヤバ工業株式会社 | Rotation angle sensor |
US6584838B2 (en) | 2001-01-11 | 2003-07-01 | Sensor Solutions Corporation | Angular position sensor |
US6564632B2 (en) | 2001-01-11 | 2003-05-20 | Rochester Gauges, Inc. | Liquid level gauge with removable hall device |
US7208939B2 (en) | 2001-02-28 | 2007-04-24 | Bvr Technologies Co. | Methods and apparatus for sensing angular position and speed of a rotatable shaft utilizing linearized annular magnet and commutated ratiometric hall sensors |
JP3664665B2 (en) * | 2001-06-01 | 2005-06-29 | 株式会社カワサキプレシジョンマシナリ | Joystick device |
DE10244703A1 (en) * | 2001-09-27 | 2003-04-10 | Marquardt Gmbh | Device for measuring distances and/or positions has magnet shaped so magnetic field strength along one magnet axis has variable profile, relative movement takes place along this axis |
WO2003069270A1 (en) * | 2002-02-14 | 2003-08-21 | Bvr Technologies Company | Methods and apparatus for sensing angular position of a rotatable shaft |
US6825831B1 (en) | 2002-10-07 | 2004-11-30 | Measurement Systems, Inc. | Position indicating device for harsh environments |
GB0227425D0 (en) * | 2002-11-25 | 2002-12-31 | Penny & Giles Controls Ltd | Joystick controller |
US6992478B2 (en) | 2003-12-22 | 2006-01-31 | Cts Corporation | Combination hall effect position sensor and switch |
US7921873B2 (en) | 2004-01-22 | 2011-04-12 | Rochester Gauges, Inc. | Service valve assembly having a stop-fill device and a liquid level indicating dial |
US7293578B2 (en) | 2004-01-22 | 2007-11-13 | Rochester Gauges, Inc. | Gauge assembly having a stop fill device |
US7726334B2 (en) | 2004-01-22 | 2010-06-01 | Rochester Gauges, Inc. | Service valve assembly having a stop-fill device and remote liquid level indicator |
FR2868525B1 (en) * | 2004-04-05 | 2006-06-09 | Hutchinson Sa | ARRAY ENCODER, DEVICE COMPRISING SUCH ENCODER AND METHOD OF MANUFACTURING SUCH ENCODER |
GB2416826A (en) * | 2004-08-06 | 2006-02-08 | P G Drives Technology Ltd | Control input device with two magnetic sensors for fail-safe sensing |
US7757579B2 (en) | 2004-08-30 | 2010-07-20 | Sauer-Danfoss Inc. | Joystick device with redundant sensor processing |
DE102004056800A1 (en) * | 2004-11-24 | 2006-06-01 | Zf Friedrichshafen Ag | Switching device for a motor vehicle |
WO2006104440A1 (en) * | 2005-03-30 | 2006-10-05 | Gcoder Systems Ab | Control device |
US8089459B2 (en) * | 2005-06-06 | 2012-01-03 | Measurement Systems, Inc. | Manual control device including a magnetoresistive sensor element |
US20070040803A1 (en) * | 2005-08-17 | 2007-02-22 | Sauer-Danfoss Inc. | Method of joining a sintered magnet to a pivot arm |
US8482523B2 (en) * | 2005-08-17 | 2013-07-09 | Sauer-Danfoss Inc. | Magnetic control device |
US20070262959A1 (en) * | 2006-05-12 | 2007-11-15 | Industrial Technology Research Institute | Magnetic joystick |
DE102008013280B4 (en) * | 2007-03-16 | 2019-01-31 | Danfoss Power Solutions Aps | Joystick with a sensor device |
WO2009009286A2 (en) * | 2007-06-21 | 2009-01-15 | Mason Electric Co. | Hall effect methods and systems |
US7690323B2 (en) | 2007-10-31 | 2010-04-06 | Rochester Gauges, Inc. | Gauge head assembly with non-magnetic insert |
US8122783B2 (en) * | 2008-02-22 | 2012-02-28 | Sauer-Danfoss Inc. | Joystick and method of manufacturing the same |
FR2942052B1 (en) * | 2009-02-12 | 2014-08-01 | Guillemot Corp | MINI-JOYSTICK HALL EFFECT WITH DETECTION OF SUPPORT, AND CORRESPONDING CONTROL DEVICE |
EP2218839B1 (en) * | 2009-02-17 | 2013-06-12 | Kwc Ag | Sanitary fitting with a joint |
US9870021B2 (en) | 2009-04-15 | 2018-01-16 | SeeScan, Inc. | Magnetic manual user interface devices |
KR101095032B1 (en) * | 2009-05-20 | 2011-12-20 | 에스엘 주식회사 | Apparatus for electron control transmission |
CN103026322B (en) | 2010-05-18 | 2017-10-31 | 希科泰克股份有限公司 | User interface facilities, apparatus and method |
GB2484452B (en) * | 2010-07-27 | 2014-12-31 | Penny & Giles Controls Ltd | A control device |
EP2606411B1 (en) | 2010-08-20 | 2014-07-30 | SeeScan, Inc. | Magnetic sensing user interface method, device and computer-readable medium |
WO2012051357A1 (en) | 2010-10-12 | 2012-04-19 | Mark Olsson | Magnetic thumbstick user interface devices |
US9134817B2 (en) | 2010-11-08 | 2015-09-15 | SeeScan, Inc. | Slim profile magnetic user interface devices |
EP2671129B1 (en) | 2010-12-02 | 2016-03-09 | SeeScan, Inc. | Magnetically sensed user interface apparatus and devices |
US9678577B1 (en) | 2011-08-20 | 2017-06-13 | SeeScan, Inc. | Magnetic sensing user interface device methods and apparatus using electromagnets and associated magnetic sensors |
US9946293B2 (en) * | 2011-12-12 | 2018-04-17 | Microsoft Technology Licensing, Llc | Magnetic force in a directional input device |
US9417258B2 (en) | 2012-09-10 | 2016-08-16 | United Technologies Corporation | Sensor and tooth arrangement for shaft speed detection |
WO2014186806A1 (en) | 2013-05-17 | 2014-11-20 | SeeScan, Inc. | User interface devices |
FR3026499B1 (en) * | 2014-09-30 | 2017-04-14 | Delphi Tech Inc | HAND-WHEEL CONTROL SYSTEM |
US11086418B2 (en) * | 2016-02-04 | 2021-08-10 | Douzen, Inc. | Method and system for providing input to a device |
US10466314B2 (en) * | 2018-02-15 | 2019-11-05 | Hamilton Sundstrand Corporation | Integrated current sensor |
JP7134059B2 (en) * | 2018-10-15 | 2022-09-09 | 旭化成エレクトロニクス株式会社 | ROTATING ANGLE DETECTION DEVICE, ROTATING ANGLE DETECTION METHOD AND PROGRAM |
US11255697B2 (en) * | 2019-12-17 | 2022-02-22 | Infineon Technologies Ag | Control stick including a single magnetic sensor for twist angle and tilt angle detection |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3331972A (en) * | 1964-04-15 | 1967-07-18 | Bodenseewerk Perkin Elmer Co | Magnetic control stick system |
US4325050A (en) * | 1980-12-08 | 1982-04-13 | Kraft Systems, Inc. | Control stick assembly |
JPS57154001A (en) * | 1981-03-19 | 1982-09-22 | Nippon Seiko Kk | Detection of three dimensional rotary position and motion of object |
JPS5866381A (en) * | 1981-10-15 | 1983-04-20 | Nec Home Electronics Ltd | Joy stick |
US4584577A (en) * | 1982-10-20 | 1986-04-22 | Brookes & Gatehouse Limited | Angular position sensor |
US4490710A (en) * | 1982-11-05 | 1984-12-25 | Kraft Systems, Inc. | Control stick assembly |
US4459578A (en) * | 1983-01-13 | 1984-07-10 | Atari, Inc. | Finger control joystick utilizing Hall effect |
US4520242A (en) * | 1983-03-10 | 1985-05-28 | Kraft Systems, Inc. | Joystick |
US4489303A (en) * | 1983-06-03 | 1984-12-18 | Advanced Control Systems | Contactless switch and joystick controller using Hall elements |
US4853630A (en) * | 1987-08-28 | 1989-08-01 | Houston John S | Magnetic position sensor having spaced toroidal magnets in a state of equilibrium |
US4825157A (en) * | 1988-05-16 | 1989-04-25 | Mikan Peter J | Hall-effect controller |
US5160918A (en) * | 1990-07-10 | 1992-11-03 | Orvitek, Inc. | Joystick controller employing hall-effect sensors |
DK37791A (en) * | 1991-03-01 | 1992-09-02 | Hardi Int As | CONTACT NOW JOYSTIC |
US5266917A (en) * | 1991-11-12 | 1993-11-30 | Xolox Corporation | Linear magnetic sensing device |
GB2265010B (en) * | 1992-03-13 | 1995-08-09 | British Gas Plc | Motion transducer |
US5421694A (en) * | 1993-05-20 | 1995-06-06 | Caterpillar Inc. | Non-contacting joystick |
CH688065A5 (en) * | 1994-02-09 | 1997-04-30 | Genge & Thoma Ag | For two-dimensional or two-dimensional controlling measuring serving arrangement. |
-
1997
- 1997-04-03 US US08/832,269 patent/US5850142A/en not_active Expired - Lifetime
-
1998
- 1998-03-25 WO PCT/US1998/005758 patent/WO1998044313A1/en active Application Filing
- 1998-03-25 AU AU65819/98A patent/AU6581998A/en not_active Abandoned
- 1998-04-02 TW TW087105018A patent/TW486664B/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1998044313B1 (en) | Magnetically actuated control device | |
TW486664B (en) | Magnetically actuated control device | |
US6130535A (en) | Measuring device for determination of rotary angle between stator and rotor | |
US7166996B2 (en) | Position sensor utilizing a linear hall-effect sensor | |
US6576890B2 (en) | Linear output non-contacting angular position sensor | |
EP0733881B1 (en) | Contactless angular position sensor | |
US6018241A (en) | Linkage of position sensor | |
US6498480B1 (en) | Magnetic non-contacting rotary transducer | |
US6703829B2 (en) | Magnetic position sensor | |
JP3361567B2 (en) | Position detection device | |
AU1083999A (en) | Collarless circularly magnetized torque transducer having two phase shaft and method for measuring torque using same | |
CA2190974A1 (en) | Circularly Magnetized Non-Contact Torque Sensor and Method for Measuring Torque Using Same | |
JPH08136558A (en) | Rotational speed detector | |
JP4204294B2 (en) | Rotation angle detector | |
JP2500253B2 (en) | Exercise Transducer | |
SE9700255D0 (en) | magnetic bearings | |
GB2229006A (en) | Rotary position transducer | |
KR900700847A (en) | Angular position sensing device on the shaft | |
US4329672A (en) | Polarized electromagnetic drive for a limited operating range of a control element | |
EP1477773B1 (en) | Magnetic turning angle detector | |
WO2001001066A1 (en) | Linear displacement sensor | |
JP2003185471A (en) | Rotation angle detector | |
EP1583938A1 (en) | Arrangement for determining position | |
TW374122B (en) | Magnet system for an image-forming apparatus | |
JPS5852536Y2 (en) | Movable iron piece type instrument |