WO2000023717A1 - Precision sensor for a hydraulic cylinder - Google Patents
Precision sensor for a hydraulic cylinder Download PDFInfo
- Publication number
- WO2000023717A1 WO2000023717A1 PCT/US1999/024287 US9924287W WO0023717A1 WO 2000023717 A1 WO2000023717 A1 WO 2000023717A1 US 9924287 W US9924287 W US 9924287W WO 0023717 A1 WO0023717 A1 WO 0023717A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- transducer
- translating member
- cylinder
- spring
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/283—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using a cable wrapped on a drum and attached to the piston
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D5/00—Control of dimensions of material
- G05D5/02—Control of dimensions of material of thickness, e.g. of rolled material
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69925851T DE69925851T2 (en) | 1998-10-20 | 1999-10-18 | FINE SENSOR OF A HYDRAULIC CYLINDER |
AU14469/00A AU1446900A (en) | 1998-10-20 | 1999-10-18 | Precision sensor for a hydraulic cylinder |
EP99970715A EP1123464B1 (en) | 1998-10-20 | 1999-10-18 | Precision sensor for a hydraulic cylinder |
AT99970715T ATE298045T1 (en) | 1998-10-20 | 1999-10-18 | FINE SENSOR OF A HYDRAULIC CYLINDER |
CA002346678A CA2346678C (en) | 1998-10-20 | 1999-10-18 | Precision sensor for a hydraulic cylinder |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10488698P | 1998-10-20 | 1998-10-20 | |
US60/104,886 | 1998-10-20 | ||
US09/302,701 | 1999-04-30 | ||
US09/302,701 US6234061B1 (en) | 1998-10-20 | 1999-04-30 | Precision sensor for a hydraulic cylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000023717A1 true WO2000023717A1 (en) | 2000-04-27 |
WO2000023717A9 WO2000023717A9 (en) | 2001-02-01 |
Family
ID=26802046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/024287 WO2000023717A1 (en) | 1998-10-20 | 1999-10-18 | Precision sensor for a hydraulic cylinder |
Country Status (7)
Country | Link |
---|---|
US (1) | US6234061B1 (en) |
EP (1) | EP1123464B1 (en) |
AT (2) | ATE350588T1 (en) |
AU (1) | AU1446900A (en) |
CA (1) | CA2346678C (en) |
DE (2) | DE69934729T2 (en) |
WO (1) | WO2000023717A1 (en) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6694861B2 (en) * | 1998-10-19 | 2004-02-24 | Control Products Inc. | Precision sensor for a hydraulic cylinder |
US7290476B1 (en) * | 1998-10-20 | 2007-11-06 | Control Products, Inc. | Precision sensor for a hydraulic cylinder |
DE10028930A1 (en) * | 2000-06-10 | 2002-01-03 | Deere & Co | Harrow |
WO2003029753A2 (en) * | 2001-10-03 | 2003-04-10 | Measurement Specialties, Inc. | Modular non-contacting position sensor |
US7552671B2 (en) * | 2002-01-04 | 2009-06-30 | Parker-Hannifin Corporation | Cylinder with fiber optical position sensing device and method |
EP1461585B1 (en) * | 2002-01-04 | 2010-12-08 | Parker Hannifin Corporation | Cylinder with optical sensing device and method |
US7093361B2 (en) * | 2002-01-23 | 2006-08-22 | Control Products, Inc. | Method of assembling an actuator with an internal sensor |
US6866545B2 (en) * | 2003-03-10 | 2005-03-15 | Control Products, Inc., (Us) | Electrical cordset with integral signal conditioning circuitry |
US6935204B2 (en) | 2003-10-31 | 2005-08-30 | Caterpillar Inc | Automated manual transmission and shift method |
US7197974B2 (en) * | 2004-01-15 | 2007-04-03 | Control Products Inc. | Position sensor |
US7609055B2 (en) * | 2004-07-21 | 2009-10-27 | Control Products, Inc. | Position sensing device and method |
US7300289B2 (en) * | 2005-09-30 | 2007-11-27 | Control Products Inc. | Electrical cordset having connector with integral signal conditioning circuitry |
DE102005058776B4 (en) * | 2005-12-09 | 2018-03-01 | Zf Friedrichshafen Ag | Device for controlling and / or regulating a hydraulically actuated switching element of a transmission device and transmission device |
DE202006001807U1 (en) | 2006-02-02 | 2007-06-06 | Sensor-Technik Wiedemann Gmbh | Measuring arrangement with magnet |
SE529291C2 (en) * | 2006-06-27 | 2007-06-19 | Hagloef Sweden Ab | Electronic tape measure comprises roller on which tape measure can be wound and unwound by rotation of roller |
DE102006062129B4 (en) | 2006-12-22 | 2010-08-05 | Wirtgen Gmbh | Road construction machine and method for measuring the cutting depth |
WO2009112895A1 (en) * | 2008-03-10 | 2009-09-17 | Timothy Webster | Position sensing of a piston in a hydraulic cylinder using a photo image sensor |
US7982459B2 (en) * | 2008-06-30 | 2011-07-19 | Eaton Corporation | Hydraulic cylinder rod position sensing method |
US8146417B2 (en) * | 2009-06-03 | 2012-04-03 | Control Products, Inc. | Hydraulic accumulator with position sensor |
BE1018847A3 (en) * | 2009-07-30 | 2011-10-04 | Cnh Belgium Nv | A BALEN PRESS WITH A FRICTION SENSOR. |
US8156798B1 (en) * | 2010-07-09 | 2012-04-17 | Hongfeng Bi | High pressure high temperature fluid densitometer |
US8558408B2 (en) | 2010-09-29 | 2013-10-15 | General Electric Company | System and method for providing redundant power to a device |
US20120134783A1 (en) | 2010-11-30 | 2012-05-31 | General Electric Company | System and method for operating a compressor |
US8278779B2 (en) | 2011-02-07 | 2012-10-02 | General Electric Company | System and method for providing redundant power to a device |
US9234735B2 (en) | 2012-06-26 | 2016-01-12 | Control Products, Inc. | System and method of manufacture for a linear position sensor |
US10006763B2 (en) | 2014-06-02 | 2018-06-26 | Reel Power Licensing Corp. | Accumulator assembly fixture |
US10279443B2 (en) | 2014-06-02 | 2019-05-07 | Reel Power Licensing Corp. | Accumulator assembly fixture |
FR3027037B1 (en) * | 2014-10-13 | 2018-01-26 | Groupe Mecalac | TOOL HOLDER FOR CONSTRUCTION OR PUBLIC WORKS EQUIPMENT |
US10246946B2 (en) | 2015-03-25 | 2019-04-02 | Columbia Trailer Co., Inc. | Method and apparatus for transporting and steering a heavy load |
US10358876B2 (en) | 2015-07-22 | 2019-07-23 | Columbia Trailer Co., Inc. | Method and apparatus for transporting and steering a heavy load |
US10113883B1 (en) | 2016-01-08 | 2018-10-30 | Control Products, Inc. | Hybrid sensor system and method of use |
US10563678B2 (en) | 2016-08-09 | 2020-02-18 | Industries Mailhot, Inc. | Pressure vessel arrangement providing piston position feedback, pressure vessel, and method for providing piston position feedback in a pressure vessel |
GB2554655B (en) * | 2016-09-30 | 2019-10-02 | Caterpillar Inc | A hydraulic actuator arrangement |
CN112566839A (en) | 2018-08-17 | 2021-03-26 | 哥伦比亚车辆有限公司 | Method and device for transporting and steering heavy loads |
US10779506B1 (en) * | 2018-10-24 | 2020-09-22 | Matthew J. Ulrich | Fully automated, sensor-driven, catch system for a hydraulic livestock squeeze chute |
US11692563B2 (en) | 2020-01-28 | 2023-07-04 | Caterpillar Paving Products Inc. | Milling machine having a valve current based height measurement system |
US11629735B2 (en) | 2020-01-28 | 2023-04-18 | Caterpillar Paving Products Inc. | Milling machine having a fluid flow based height measurement system |
US11255059B2 (en) | 2020-01-28 | 2022-02-22 | Caterpillar Paving Products Inc. | Milling machine having a non-contact leg-height measurement system |
US11578737B2 (en) | 2020-03-12 | 2023-02-14 | Caterpillar Paving Products Inc. | Distance based actuator velocity calibration system |
US11566387B2 (en) | 2020-03-12 | 2023-01-31 | Caterpillar Paving Products Inc. | Relative velocity based actuator velocity calibration system |
IT202100028070A1 (en) | 2021-11-04 | 2023-05-04 | Tpi S R L | “CONTACTLESS LINEAR POSITION TRANSDUCER.” |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2635614A1 (en) * | 1976-08-07 | 1978-02-09 | Georg Rudolf Sillner | Control potentiometer with external setting - has spiral groove in which contact driven by pressure element moves to change setting |
US4121504A (en) * | 1977-01-21 | 1978-10-24 | Inovec, Inc. | Cylinder positioning systems |
US4288196A (en) | 1979-06-14 | 1981-09-08 | Sutton Ii James O | Computer controlled backhoe |
EP0325787A2 (en) * | 1987-12-29 | 1989-08-02 | Eaton Corporation | Multiturn shaft position sensor |
DE3835782A1 (en) * | 1988-10-20 | 1990-04-26 | Rexroth Mannesmann Gmbh | Device for measuring angles of rotation |
US4945221A (en) | 1987-04-24 | 1990-07-31 | Laser Alignment, Inc. | Apparatus and method for controlling a hydraulic excavator |
EP0505297A1 (en) * | 1991-03-22 | 1992-09-23 | Gec Alsthom-Societe D'etudes Et De Montages | Hydraulic actuator with piston positioning means |
US5404661A (en) | 1994-05-10 | 1995-04-11 | Caterpillar Inc. | Method and apparatus for determining the location of a work implement |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403365A (en) * | 1964-05-04 | 1968-09-24 | Gen Electric | Shielded transducer having means to reduce core movement |
US4286386A (en) * | 1977-09-06 | 1981-09-01 | Long Irvin E | Electro-mechanical displacement measuring device |
SE419709B (en) | 1979-02-21 | 1981-08-24 | Roland Kaufeldt | SET AND DEVICE FOR ASTADCOMMATING QUICK TIME AND SOFT BRAKING AND AN EXACTLY DETERMINED FINAL ROOM WITH A GREAT ROBOT FRAME |
US4231700A (en) | 1979-04-09 | 1980-11-04 | Spectra-Physics, Inc. | Method and apparatus for laser beam control of backhoe digging depth |
US4386552A (en) * | 1980-06-16 | 1983-06-07 | Foxwell W John | Power cylinder with internally mounted position indicator |
GB2216268B (en) | 1988-03-31 | 1992-04-15 | Schlumberger Ind Ltd | Rotary displacement transducers |
JPH02186102A (en) * | 1989-01-10 | 1990-07-20 | Nakamura Koki Kk | Piston position detecting device for piston type accumulator |
US5341724A (en) * | 1993-06-28 | 1994-08-30 | Bronislav Vatel | Pneumatic telescoping cylinder and method |
US5694042A (en) | 1995-09-15 | 1997-12-02 | Turck, Inc. | Angular displacement sensor for rotationally reciprocating elements |
US5701793A (en) | 1996-06-24 | 1997-12-30 | Catepillar Inc. | Method and apparatus for controlling an implement of a work machine |
US5752811A (en) | 1996-11-15 | 1998-05-19 | Petro; John P. | Linear actuator mechanism for converting rotary to linear movement including one end pulley Line attached to the stationary anchor and other end attached to the take-up drum |
-
1999
- 1999-04-30 US US09/302,701 patent/US6234061B1/en not_active Expired - Lifetime
- 1999-10-18 CA CA002346678A patent/CA2346678C/en not_active Expired - Lifetime
- 1999-10-18 DE DE69934729T patent/DE69934729T2/en not_active Expired - Lifetime
- 1999-10-18 DE DE69925851T patent/DE69925851T2/en not_active Expired - Lifetime
- 1999-10-18 WO PCT/US1999/024287 patent/WO2000023717A1/en active IP Right Grant
- 1999-10-18 AT AT04009658T patent/ATE350588T1/en not_active IP Right Cessation
- 1999-10-18 AU AU14469/00A patent/AU1446900A/en not_active Abandoned
- 1999-10-18 EP EP99970715A patent/EP1123464B1/en not_active Expired - Lifetime
- 1999-10-18 AT AT99970715T patent/ATE298045T1/en not_active IP Right Cessation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2635614A1 (en) * | 1976-08-07 | 1978-02-09 | Georg Rudolf Sillner | Control potentiometer with external setting - has spiral groove in which contact driven by pressure element moves to change setting |
US4121504A (en) * | 1977-01-21 | 1978-10-24 | Inovec, Inc. | Cylinder positioning systems |
US4288196A (en) | 1979-06-14 | 1981-09-08 | Sutton Ii James O | Computer controlled backhoe |
US4945221A (en) | 1987-04-24 | 1990-07-31 | Laser Alignment, Inc. | Apparatus and method for controlling a hydraulic excavator |
EP0325787A2 (en) * | 1987-12-29 | 1989-08-02 | Eaton Corporation | Multiturn shaft position sensor |
DE3835782A1 (en) * | 1988-10-20 | 1990-04-26 | Rexroth Mannesmann Gmbh | Device for measuring angles of rotation |
EP0505297A1 (en) * | 1991-03-22 | 1992-09-23 | Gec Alsthom-Societe D'etudes Et De Montages | Hydraulic actuator with piston positioning means |
US5404661A (en) | 1994-05-10 | 1995-04-11 | Caterpillar Inc. | Method and apparatus for determining the location of a work implement |
Also Published As
Publication number | Publication date |
---|---|
ATE298045T1 (en) | 2005-07-15 |
WO2000023717A9 (en) | 2001-02-01 |
CA2346678C (en) | 2007-11-20 |
ATE350588T1 (en) | 2007-01-15 |
DE69925851D1 (en) | 2005-07-21 |
EP1123464A1 (en) | 2001-08-16 |
DE69934729D1 (en) | 2007-02-15 |
CA2346678A1 (en) | 2000-04-27 |
EP1123464B1 (en) | 2005-06-15 |
AU1446900A (en) | 2000-05-08 |
DE69934729T2 (en) | 2007-10-18 |
US6234061B1 (en) | 2001-05-22 |
DE69925851T2 (en) | 2006-05-11 |
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