ES489454A1 - Perfeccionamientos en captadores de desplazamiento - Google Patents
Perfeccionamientos en captadores de desplazamientoInfo
- Publication number
- ES489454A1 ES489454A1 ES489454A ES489454A ES489454A1 ES 489454 A1 ES489454 A1 ES 489454A1 ES 489454 A ES489454 A ES 489454A ES 489454 A ES489454 A ES 489454A ES 489454 A1 ES489454 A1 ES 489454A1
- Authority
- ES
- Spain
- Prior art keywords
- coils
- metal piece
- type used
- current type
- differential sensor
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0033—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means
- G01L9/0036—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means using variations in inductance
-
- 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
- G01D5/20—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 inductance, e.g. by a movable armature
- G01D5/2006—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 inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
- G01D5/202—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 inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by movable a non-ferromagnetic conductive element
-
- 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
- G01D5/20—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 inductance, e.g. by a movable armature
- G01D5/22—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 inductance, e.g. by a movable armature differentially influencing two coils
- G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/007—Transmitting or indicating the displacement of flexible diaphragms using variations in inductance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/10—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in inductance, i.e. electric circuits therefor
- G01L9/105—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in inductance, i.e. electric circuits therefor with temperature compensating means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Perfeccionamientos en captadores de desplazamiento, que comprenden dos bobinas sensiblemente idénticas de las cuales una al menos coopera con una pieza conductora de la que se trata de medir los desplazamientos, medios para aplicar a estas bobinas, respectivamente en serie con dos resistencias, señales rectangulares de baja frecuencia, medios para detectar los valores de crestas de las tensiones respectivamente recogidos en los puntos comunes entre las bobinas respectivas y las resistencias correspondientes y medios para determinar la diferencia entre estos valores de cresta, caracterizados, en combinación , porque la pieza es de metal no ferromagnético, porque las dos bobinas se conectan directamente a un punto común de aplicación de las señales, y porque un diodo de rueda libre conecta el punto común al punto común de la resistencias.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7906206A FR2451566A1 (fr) | 1979-03-12 | 1979-03-12 | Capteur de deplacement a courants de foucault |
Publications (1)
Publication Number | Publication Date |
---|---|
ES489454A1 true ES489454A1 (es) | 1980-09-16 |
Family
ID=9223003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES489454A Expired ES489454A1 (es) | 1979-03-12 | 1980-03-12 | Perfeccionamientos en captadores de desplazamiento |
Country Status (8)
Country | Link |
---|---|
US (1) | US4365517A (es) |
JP (1) | JPS56500102A (es) |
CH (1) | CH641896A5 (es) |
ES (1) | ES489454A1 (es) |
FR (1) | FR2451566A1 (es) |
GB (1) | GB2060900B (es) |
IT (1) | IT1129630B (es) |
WO (1) | WO1980001951A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1138465B (it) * | 1981-07-29 | 1986-09-17 | Kent Tieghi Spa | Trasmettitore elettronico di valori di pressione di fluidi di processi industriali |
CA1181256A (en) * | 1981-10-05 | 1985-01-22 | Combustion Engineering, Inc. | Bridge for reactive detector circuit |
US5490424A (en) * | 1993-03-09 | 1996-02-13 | Matsushita Electric Industrial Co., Ltd. | Pressure sensor with moisture resistance and uniform characteristics |
DE19630015A1 (de) * | 1996-07-25 | 1998-01-29 | Daimler Benz Ag | Vorrichtung zur berührungsfreien elektrischen Messung des Reifendruckes an einem umlaufenden Reifen, insbesondere bei Kraftfahrzeugen |
US6667615B2 (en) * | 2000-02-10 | 2003-12-23 | Sankyo Seiki Mfg. Co., Ltd. | Coin identifying device using magnetic sensors |
US6960911B2 (en) * | 2002-01-29 | 2005-11-01 | Kabushiki Kaisha Toshiba | Strain sensor |
DE102012202639A1 (de) * | 2012-02-21 | 2013-08-22 | Robert Bosch Gmbh | Sensoranordnung zur Erfassung von Drehwinkeln an einem rotierenden Bauteil in einem Fahrzeug |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2959962A (en) * | 1957-10-02 | 1960-11-15 | Epstein Saul | Electromagnetic fluid pressure responsive device |
US3336525A (en) * | 1963-01-08 | 1967-08-15 | Kaman Aircraft Corp | Variable impedance displacement transducer |
FR1427236A (fr) * | 1964-12-31 | 1966-02-04 | Kaman Aircraft Corp | Perfectionnements apportés aux transducteurs, notamment du type fonctionnant par courants de foucault |
DE1903051B2 (de) * | 1969-01-22 | 1972-05-18 | Perthen, Johannes, Dr.-Ing., 3000 Hannover | Elktronisches laengenmessgeraet |
JPS587182B2 (ja) * | 1974-03-08 | 1983-02-08 | 横河電機株式会社 | サアツオウドウソウチ |
SU509800A1 (ru) * | 1974-12-03 | 1976-04-05 | Подмосковный Государственныйпроектно-Конструкторский И Экспери-Ментальный Институт Горного Машиностроения | Устройство дл измерени давлени |
DE2724064C3 (de) * | 1977-05-27 | 1980-10-09 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Induktiver Winkelgeber |
IT1088352B (it) * | 1977-10-12 | 1985-06-10 | Magneti Marelli Spa | Rilevatore di spostamenti lineari |
-
1979
- 1979-03-12 FR FR7906206A patent/FR2451566A1/fr active Granted
-
1980
- 1980-03-11 US US06/224,506 patent/US4365517A/en not_active Expired - Lifetime
- 1980-03-11 JP JP50067180A patent/JPS56500102A/ja active Pending
- 1980-03-11 GB GB8035570A patent/GB2060900B/en not_active Expired
- 1980-03-11 WO PCT/FR1980/000034 patent/WO1980001951A1/fr active Application Filing
- 1980-03-11 CH CH834080A patent/CH641896A5/fr not_active IP Right Cessation
- 1980-03-12 IT IT20530/80A patent/IT1129630B/it active
- 1980-03-12 ES ES489454A patent/ES489454A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH641896A5 (fr) | 1984-03-15 |
JPS56500102A (es) | 1981-02-05 |
WO1980001951A1 (fr) | 1980-09-18 |
IT8020530A0 (it) | 1980-03-12 |
FR2451566B1 (es) | 1984-10-19 |
IT1129630B (it) | 1986-06-11 |
US4365517A (en) | 1982-12-28 |
GB2060900B (en) | 1983-10-05 |
GB2060900A (en) | 1981-05-07 |
FR2451566A1 (fr) | 1980-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970612 |