IT1176774B - Dispositivo per determinare lo spostamento del pistone di gruppi idraulici, pneumatici od idropneumatici - Google Patents
Dispositivo per determinare lo spostamento del pistone di gruppi idraulici, pneumatici od idropneumaticiInfo
- Publication number
- IT1176774B IT1176774B IT22790/84A IT2279084A IT1176774B IT 1176774 B IT1176774 B IT 1176774B IT 22790/84 A IT22790/84 A IT 22790/84A IT 2279084 A IT2279084 A IT 2279084A IT 1176774 B IT1176774 B IT 1176774B
- Authority
- IT
- Italy
- Prior art keywords
- hydropneumatic
- pneumatic
- piston
- hydraulic
- groups
- 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
- F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
- G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
- G01D5/2412—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying overlap
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3334636A DE3334636C1 (de) | 1983-09-24 | 1983-09-24 | Vorrichtung zur Wegbestimmung eines Kolbens von hydraulischen, pneumatischen oder hydropneumatischen Aggregaten |
| DE3338443A DE3338443C1 (de) | 1983-10-22 | 1983-10-22 | Vorrichtung zur Wegbestimmung eines Kolbens von hydraulischen, pneumatischen oder hydropneumatischen Aggregaten |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| IT8422790A0 IT8422790A0 (it) | 1984-09-21 |
| IT8422790A1 IT8422790A1 (it) | 1986-03-21 |
| IT1176774B true IT1176774B (it) | 1987-08-18 |
Family
ID=25814292
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT8423271U IT8423271V0 (it) | 1983-09-24 | 1984-09-21 | Dispositivo per determinare lo spostamento del pistone di gruppi idraulici, pneumatici od idropneumatici. |
| IT22790/84A IT1176774B (it) | 1983-09-24 | 1984-09-21 | Dispositivo per determinare lo spostamento del pistone di gruppi idraulici, pneumatici od idropneumatici |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT8423271U IT8423271V0 (it) | 1983-09-24 | 1984-09-21 | Dispositivo per determinare lo spostamento del pistone di gruppi idraulici, pneumatici od idropneumatici. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4587850A (it) |
| BR (1) | BR8403400A (it) |
| ES (1) | ES8502782A1 (it) |
| FR (1) | FR2552539B1 (it) |
| GB (1) | GB2147105B (it) |
| IT (2) | IT8423271V0 (it) |
| MX (1) | MX159662A (it) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3430045C2 (de) * | 1984-08-16 | 1986-07-17 | Boge Gmbh, 5208 Eitorf | Vorrichtung zur Wegbestimmung eines Kolbens |
| US4788489A (en) * | 1985-07-12 | 1988-11-29 | Nissan Motor Co., Ltd. | Position sensor for use in variable height automotive suspension or the like |
| US4862063A (en) * | 1986-11-14 | 1989-08-29 | Nissan Motor Company, Limited | Electrostatic capacity-type stroke sensor and dielectric material therefor |
| DK165562C (da) * | 1987-02-20 | 1993-04-26 | Niels Hvilsted | Hydraulisk cylinder med indbygget induktiv stempelpositionsgiver. |
| US4798369A (en) * | 1987-11-03 | 1989-01-17 | The Firestone Tire & Rubber Company | Ultrasonic air spring system |
| US4961055A (en) * | 1989-01-04 | 1990-10-02 | Vickers, Incorporated | Linear capacitance displacement transducer |
| JPH04175533A (ja) * | 1990-11-05 | 1992-06-23 | Nissan Motor Co Ltd | 圧電アクチュエータの変位拡大機構 |
| US5125681A (en) * | 1990-11-26 | 1992-06-30 | Monroe Auto Equipment Company | Method and apparatus for determining the displacement of a piston within a shock absorber |
| US5170866A (en) * | 1991-04-01 | 1992-12-15 | Motorola, Inc | Motion-damping device using electrorheological fluid |
| WO1994006002A1 (en) * | 1992-09-10 | 1994-03-17 | David Sarnoff Research Center, Inc. | Capacitive sensor and method of measuring changes in capacitance |
| US5585733A (en) * | 1992-09-10 | 1996-12-17 | David Sarnoff Research Center | Capacitive sensor and method of measuring changes in capacitance |
| WO2004099724A2 (en) * | 2003-05-06 | 2004-11-18 | Sri International | Hydraulic cylinder with piston and a magnetic layer on the piston rod for piston position determination |
| KR20060052774A (ko) * | 2003-07-01 | 2006-05-19 | 티악스 엘엘씨 | 용량성 위치 센서 및 감지 방법 |
| WO2007011402A2 (en) * | 2004-10-26 | 2007-01-25 | Georgia Tech Research Corporation | Displacement sensor |
| US7259553B2 (en) | 2005-04-13 | 2007-08-21 | Sri International | System and method of magnetically sensing position of a moving component |
| DE102005043107A1 (de) * | 2005-09-10 | 2007-03-22 | Indeas Eingabe- Und Antriebs-Systeme Gmbh | Vorrichtung zum Bestimmen der Position eines Gegenstands |
| US7372255B2 (en) * | 2006-09-13 | 2008-05-13 | Sunpower, Inc. | Detection of the instantaneous position of a linearly reciprocating member using high frequency injection |
| US20090058430A1 (en) * | 2007-09-05 | 2009-03-05 | Sentrinsic | Systems and Methods for Sensing Positions of Components |
| DE202008010230U1 (de) * | 2008-07-31 | 2009-12-10 | Liebherr-Elektronik Gmbh | Positionsmeßvorrichtung für einen fluidischen Zylinder |
| GB2464114B (en) * | 2008-10-02 | 2012-06-13 | Cellnovo Ltd | Linear capacitive displacement sensor |
| JP2013519882A (ja) * | 2010-02-11 | 2013-05-30 | エスアールアイ インターナショナル | 磁気符号化を用いた変位測定システム及び方法 |
| US8307700B2 (en) * | 2010-02-19 | 2012-11-13 | Sunpower, Inc. | Internal position and limit sensor for free piston machines |
| US10743794B2 (en) * | 2011-10-04 | 2020-08-18 | Nuvasive Specialized Orthopedics, Inc. | Devices and methods for non-invasive implant length sensing |
| CN103374902B (zh) * | 2012-04-13 | 2015-12-09 | 江苏武进液压启闭机有限公司 | 远程可感知高精度陶瓷活塞杆液压启闭机系统 |
| DE102013018342A1 (de) * | 2013-10-31 | 2015-04-30 | Liebherr-Elektronik Gmbh | Kolbenzylindereinheit mit Auswerteeinheit zur Positionsbestimmung des Kolbens |
| US10441717B2 (en) | 2014-04-15 | 2019-10-15 | Insulet Corporation | Monitoring a physiological parameter associated with tissue of a host to confirm delivery of medication |
| US11241532B2 (en) | 2018-08-29 | 2022-02-08 | Insulet Corporation | Drug delivery system with sensor having optimized communication and infusion site |
| US11499845B2 (en) | 2019-02-07 | 2022-11-15 | Texas Instruments Incorporated | Compensation of mechanical tolerance in a capacitive sensing control element |
| WO2020163176A1 (en) * | 2019-02-07 | 2020-08-13 | Texas Instruments Incorporated | Compensation of mechanical tolerance in a capacitive sensing control element |
| US11061047B2 (en) | 2019-03-28 | 2021-07-13 | Toyota Motor Engineering & Manufacturing North America, Inc. | Systems and methods for determining measurement characteristics of an object with a time displacement sensor |
| WO2022072823A2 (en) | 2020-10-02 | 2022-04-07 | Insulet Corporation | Fluid delivery device having multiple penetrating elements |
| US12433512B2 (en) | 2020-12-18 | 2025-10-07 | Insulet Corporation | Adhesive pad with a metallic coil for securing an on-body medical device |
| US12496398B2 (en) | 2021-05-28 | 2025-12-16 | Insulet Corporation | Threshold based automatic glucose control response |
| US12359903B2 (en) | 2021-05-28 | 2025-07-15 | Insulet Corporation | Spring-based status sensors |
| US12406760B2 (en) | 2021-06-07 | 2025-09-02 | Insulet Corporation | Exercise safety prediction based on physiological conditions |
| CN114234782B (zh) * | 2021-12-13 | 2024-08-13 | 山东高速股份有限公司 | 一种桥梁结构位移测量装置及测量方法 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1248959B (de) * | 1967-08-31 | Sogenique (Electronics) Limited, Newport Pagnell, Buckinghamshire (Großbritannien) | Kapazitiver Meßumformer | |
| US2978638A (en) * | 1959-01-26 | 1961-04-04 | Sperry Rand Corp | Coercion-free capacitance bridge pick-off |
| FR1525363A (fr) * | 1967-04-07 | 1968-05-17 | Compteurs Et Moteurs Aster | Vérin comportant un dispositif de contrôle et de commande de sa position |
| DE1299432B (de) * | 1967-12-30 | 1969-07-17 | Maurer Ludwig | Verfahren und Vorrichtung zur Stellwegmessung bei einer mit einem Druckmedium beaufschlagten Kolben-zylinder-Einheit |
| GB1219666A (en) * | 1968-07-02 | 1971-01-20 | Nat Res Dev | Improvements in or relating to measuring |
| US3805150A (en) * | 1970-08-17 | 1974-04-16 | Ade Corp | Environment immune high precision capacitive gauging system |
| US3833094A (en) * | 1973-02-05 | 1974-09-03 | S Grossman | Shock absorber warning system |
| US4107975A (en) * | 1976-08-23 | 1978-08-22 | Cargile William P | Method and apparatus for testing shock absorbers and the like |
| CH614042A5 (it) * | 1977-04-20 | 1979-10-31 | Hans Ulrich Meyer | |
| GB1557765A (en) * | 1978-03-03 | 1979-12-12 | Griffiths J A | Capacitive transducer |
| CH642432A5 (de) * | 1978-05-11 | 1984-04-13 | Rotovolumetric Ag | Einrichtung mit einem zylinder, einem in diesem verschiebbaren kolben und einem kapazitiven messwandler. |
| GB2022840B (en) * | 1978-05-31 | 1982-10-13 | Automatic Systems Lab Ltd | Capacitve displacement transducer |
| US4483546A (en) * | 1981-04-08 | 1984-11-20 | Lucas Industries Public Limited Company | Self-levelling suspension |
| GB2106651A (en) * | 1981-06-30 | 1983-04-13 | Air Power And Hydraulics Limit | Displacement indication device |
| DE3244891C2 (de) * | 1982-12-04 | 1985-07-11 | Angewandte Digital Elektronik Gmbh, 2051 Brunstorf | Einrichtung zur berührungslosen Positionsmessung |
-
1984
- 1984-05-24 ES ES532751A patent/ES8502782A1/es not_active Expired
- 1984-06-29 MX MX201834A patent/MX159662A/es unknown
- 1984-07-09 BR BR8403400A patent/BR8403400A/pt unknown
- 1984-07-30 GB GB08419411A patent/GB2147105B/en not_active Expired
- 1984-08-16 FR FR848412874A patent/FR2552539B1/fr not_active Expired
- 1984-09-21 IT IT8423271U patent/IT8423271V0/it unknown
- 1984-09-21 IT IT22790/84A patent/IT1176774B/it active
- 1984-09-24 US US06/653,930 patent/US4587850A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB8419411D0 (en) | 1984-09-05 |
| FR2552539B1 (fr) | 1989-08-25 |
| FR2552539A1 (fr) | 1985-03-29 |
| IT8422790A0 (it) | 1984-09-21 |
| US4587850A (en) | 1986-05-13 |
| GB2147105B (en) | 1986-10-22 |
| ES532751A0 (es) | 1985-01-16 |
| IT8422790A1 (it) | 1986-03-21 |
| GB2147105A (en) | 1985-05-01 |
| BR8403400A (pt) | 1985-06-18 |
| MX159662A (es) | 1989-07-27 |
| ES8502782A1 (es) | 1985-01-16 |
| IT8423271V0 (it) | 1984-09-21 |
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