CN203178300U - Magneto-electric relative speed sensor - Google Patents
Magneto-electric relative speed sensor Download PDFInfo
- Publication number
- CN203178300U CN203178300U CN 201320168783 CN201320168783U CN203178300U CN 203178300 U CN203178300 U CN 203178300U CN 201320168783 CN201320168783 CN 201320168783 CN 201320168783 U CN201320168783 U CN 201320168783U CN 203178300 U CN203178300 U CN 203178300U
- Authority
- CN
- China
- Prior art keywords
- cavity
- coil
- spring leaf
- spring sheet
- magneto
- 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 - Fee Related
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a magneto-electric relative speed sensor comprising a top rod, a first spring sheet, a second spring sheet, a first cavity, a second cavity, a third cavity, magnetic steel, a coil, an outgoing line and a shell. The top rod is positioned inside the shell along a central line. The first spring sheet is positioned inside the first cavity. One end of the first spring sheet is connected with the top rod, and the other end of the first spring sheet is connected with the inner wall of the first cavity. The magnetic steel is positioned inside the second cavity. The coil and the second spring sheet are positioned inside the third cavity. The coil and the magnetic steel are positioned on the top rod. The top end of the top rod is connected with one end of the second spring sheet, and the other end of the second spring sheet is connected with the inner wall of the third cavity. The coil is connected with the outgoing line. The passivation configuration can be realized by the magneto-electric relative speed sensor, and the measuring method is simple and the cost is low. The output signal can be transmitted in a long distance without being conditioned and amplified so that stability of working performance is enhanced, the coil can be protected against being broken and is convenient to replace. Therefore, the measuring accuracy of the sensor is enhanced.
Description
Technical field
The utility model relates to a kind of sensor, relates in particular to a kind of magneto-electric relative velocity sensor.
Background technology
The used magnetoelectric sensor of measurement mechanical vibration both at home and abroad all is the velocity profile sensor at present, and two kinds of versions are generally arranged.A kind of is that shell and the center magnet steel of sensor is affixed, and pornographic movie is bearing in shell to coil and the magnet steel annular is asked between the crack by playing. shell and coil that another kind of version is sensor are affixed, and magnet steel supports with spring leaf.When sensor is installed on the vibrating object, make magnet steel and coil produce relative motion, thereby generation is proportional to the voltage signal of vibration velocity, want the measuring vibrations acceleration, then need connect differentiating circuit in addition, rate signal is transformed into acceleration signal, because the error that differential produces is bigger, thereby make the distortion of acceleration waveform, can not get acceleration signal accurately.
The utility model content
The purpose of this utility model provides a kind of magneto-electric relative velocity sensor simple in structure, with low cost with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises push rod, first spring leaf, second spring leaf, first cavity, second cavity, the 3rd cavity, magnet steel, coil, extension line and housing, described push rod is arranged in the described housing along center line, described first spring leaf is arranged in described first cavity, one end of described first spring leaf is connected with described push rod, the other end of described first spring leaf is connected with described first cavity inner wall, described magnet steel is arranged in described second cavity, described coil and described second spring leaf are arranged in the 3rd cavity, described coil and described magnet steel are arranged on the described push rod, the top of described push rod is connected with an end of described second spring leaf, the other end of described second spring leaf is connected with the inwall of described the 3rd cavity, and described coil is connected with described extension line.
Further, described first spring leaf can be one or more.
The beneficial effects of the utility model are:
The utility model can be realized passiveization design, and measuring method is simple, and cost is lower; output signal can be amplified and can transmit at a distance without conditioning, has improved the stability of serviceability, and the protection coil is difficult for fractureing; be convenient to replacing, thereby improved the measuring accuracy of sensor.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1-push rod, 2 first spring leafs, 3-magnet steel, 4-housing, 5-coil, 6-extension line, 7-second spring leaf, 8-second cavity, 9-first cavity, 10-the 3rd cavity.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises push rod 1, first spring leaf 2, second spring leaf 7, magnet steel 3, coil 5, first cavity 9, second cavity 8, the 3rd cavity 10, extension line 6 and housing 4, push rod 1 is arranged in the described housing 4 along center line, first spring leaf 2 is arranged in first cavity 9, one end of first spring leaf 2 is connected with push rod 1, the other end of first spring leaf 2 is connected with first cavity, 9 inwalls, magnet steel 3 is arranged in second cavity 9, coil 5 and second spring leaf 7 are arranged in the 3rd cavity 10, coil 5 is arranged on the push rod 1 with magnet steel 3, the top of push rod 1 is connected with an end of second spring leaf 7, the other end of second spring leaf 7 is connected with the inwall of the 3rd cavity 10, coil 5 is connected with extension line 6, and first spring leaf 2 can be one or more
Principle of work of the present utility model: be used for the relative vibration velocity between two parts in the measuring vibrations system, housing 4 is fixed on the parts, and push rod 1 is connected with another parts.Thereby make the coil 5 of sensor internal and magnet steel 3 produce relative motion, send corresponding electromotive force, connect measuring equipment by extension line, its advantage is not need additional power source, output signal can be amplified and can transmit at a distance without conditioning, and this is very easily in actual long term monitoring.
Claims (2)
1. magneto-electric relative velocity sensor, it is characterized in that: comprise push rod, first spring leaf, second spring leaf, first cavity, second cavity, the 3rd cavity, magnet steel, coil, extension line and housing, described push rod is arranged in the described housing along center line, described first spring leaf is arranged in described first cavity, one end of described first spring leaf is connected with described push rod, the other end of described first spring leaf is connected with described first cavity inner wall, described magnet steel is arranged in described second cavity, described coil and described second spring leaf are arranged in the 3rd cavity, described coil and described magnet steel are arranged on the described push rod, the top of described push rod is connected with an end of described second spring leaf, the other end of described second spring leaf is connected with the inwall of described the 3rd cavity, and described coil is connected with described extension line.
2. magneto-electric relative velocity sensor according to claim 1, it is characterized in that: described first spring leaf can be one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320168783 CN203178300U (en) | 2013-04-08 | 2013-04-08 | Magneto-electric relative speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320168783 CN203178300U (en) | 2013-04-08 | 2013-04-08 | Magneto-electric relative speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178300U true CN203178300U (en) | 2013-09-04 |
Family
ID=49074979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320168783 Expired - Fee Related CN203178300U (en) | 2013-04-08 | 2013-04-08 | Magneto-electric relative speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203178300U (en) |
-
2013
- 2013-04-08 CN CN 201320168783 patent/CN203178300U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140408 |