DE102004047436A1 - Inductive sensor apparatus with pulse synchronization and having a sample and hold member connected to the output of a pulse source - Google Patents
Inductive sensor apparatus with pulse synchronization and having a sample and hold member connected to the output of a pulse source Download PDFInfo
- Publication number
- DE102004047436A1 DE102004047436A1 DE200410047436 DE102004047436A DE102004047436A1 DE 102004047436 A1 DE102004047436 A1 DE 102004047436A1 DE 200410047436 DE200410047436 DE 200410047436 DE 102004047436 A DE102004047436 A DE 102004047436A DE 102004047436 A1 DE102004047436 A1 DE 102004047436A1
- Authority
- DE
- Germany
- Prior art keywords
- output
- coil
- sample
- measuring device
- pulse source
- 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.)
- Ceased
Links
Classifications
-
- 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
- G01D5/2013—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 a movable ferromagnetic element, e.g. a core
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren eines induktiven Sensors mit Pulsanregung und pulssynchroner Messwertabtastung.The The invention relates to an apparatus and a method of an inductive Sensors with pulse excitation and pulse-synchronous measured value sampling.
Es
sind verschiedene induktive Sensoren bekannt, die die Nähe eines
leitfähigen
Gegenstands als Funktion der Induktanz einer Spule messen, die sich
im Sensor befindet. Solche Sensoren stützen sich auf die bekannte
Beziehung zwischen der Induktanz eines elektrischen Leiters und
der Nähe
des Leiters zu einem leitfähigen
Gegenstand, siehe Khazan, A.D., Prentice Hall, New Jersey (1994).
Ein Nachteil dieser induktiven Sensoren ist die Empfindlichkeit gegenüber externen, variierenden, inhomogenen magnetischen und elektrischen Feldern, wie sie z. B. in der Nähe von Elektromotoren, Netztransformatoren, etc. vorkommen..One Disadvantage of these inductive sensors is the sensitivity to external, varying, inhomogeneous magnetic and electric fields, as they are z. B. nearby of electric motors, mains transformers, etc. occur ..
Ausgehend von diesem Nachteil liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zu schaffen, mit denen ein induktiver Sensor auch in inhomogenen, variierenden Feldern betrieben werden kann.outgoing From this disadvantage, the invention has the object, a Device and to provide a method by which an inductive sensor can also be operated in inhomogeneous, varying fields.
Erfindungsgemäß wird diese Aufgabe durch eine Vorrichtung mit den Merkmalen des 1. Patentanspruchs und durch ein Verfahren mit den Merkmalen des 4. Patentanspruchs gelöst.According to the invention this Task by a device having the features of the first claim and by a method having the features of the fourth claim solved.
Ein
Grundgedanke der Erfindung ist, durch breitbandige Anregung des
induktiven Sensors mit Pulssynchronisation bei der Messwertaufnahme
und der Messwertermittlung über
eine große
Anzahl von Pulsen den Einfluss von Störfeldern zu minimieren.
Eine
Ausführungsform
ist in
Der
Kollektorwiderstand (
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410047436 DE102004047436A1 (en) | 2004-09-28 | 2004-09-28 | Inductive sensor apparatus with pulse synchronization and having a sample and hold member connected to the output of a pulse source |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410047436 DE102004047436A1 (en) | 2004-09-28 | 2004-09-28 | Inductive sensor apparatus with pulse synchronization and having a sample and hold member connected to the output of a pulse source |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004047436A1 true DE102004047436A1 (en) | 2006-04-13 |
Family
ID=36088681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410047436 Ceased DE102004047436A1 (en) | 2004-09-28 | 2004-09-28 | Inductive sensor apparatus with pulse synchronization and having a sample and hold member connected to the output of a pulse source |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004047436A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011087677A1 (en) * | 2011-12-02 | 2013-06-06 | Continental Automotive Gmbh | Digital sensor |
-
2004
- 2004-09-28 DE DE200410047436 patent/DE102004047436A1/en not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011087677A1 (en) * | 2011-12-02 | 2013-06-06 | Continental Automotive Gmbh | Digital sensor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0990123B1 (en) | Eddy current sensor | |
DE3786970T2 (en) | CAPACITIVE SENSOR AND METAL DETECTOR FOR DETECTING HIDDEN PRODUCTS. | |
EP2666023B1 (en) | Current measuring device | |
DE19631438A1 (en) | Eddy current sensor | |
DE102006034579A1 (en) | Current detection device and method for current detection | |
EP2783245A2 (en) | Metal sensor | |
EP3893006A1 (en) | Electrical circuit and method for galvanically separate, all-current sensitive differential current measurement with high resolution | |
DE102005034859A1 (en) | Measuring arrangement for measuring the inductance and the resistance value of an inductive sensor | |
EP2981851B1 (en) | Object locater and method for locating a metallic and/or magnetizable object | |
DE3637801A1 (en) | DEVICE FOR MEASURING A PERIODICALLY CONSTANT OR CHANGING MAGNETIC FIELD | |
DE102004047436A1 (en) | Inductive sensor apparatus with pulse synchronization and having a sample and hold member connected to the output of a pulse source | |
DE102007032300A1 (en) | Current sensor for direct current or alternating current measurements, comprises two flux gate sensors, where every flux gate sensor has magnetic core, and current carrying conductor is assigned two conductive sections | |
DE19632457C1 (en) | Switching circuit for function monitoring for vehicle wheel RPM measuring sensor | |
WO2005098458A1 (en) | Current sensor | |
EP3824323B1 (en) | Detector for detecting electrically conductive material | |
DE102021101455A1 (en) | Capacitive sensor device, steering wheel with a capacitive sensor device, method for operating a capacitive sensor device and/or a steering wheel, and vehicle with a capacitive sensor device | |
EP3074726B1 (en) | Inductive measuring probe and method for operating an inductive measuring probe | |
DE3312756A1 (en) | Proximity switch | |
DE3824267C2 (en) | ||
EP2348637A1 (en) | Inductive proximity sensor and method for detecting proximity | |
WO2010108805A2 (en) | Magnetic-inductive flow measurement device and method for operation thereof | |
DE2142351B2 (en) | Device for checking the mix-up and structure of ferromagnetic materials | |
DE3533011C2 (en) | ||
DE2343550C3 (en) | Method and device for measuring parameters of the components of a complex circuit | |
DE19752497C2 (en) | Eddy current sensor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8131 | Rejection |