CN208671910U - A kind of Hall-type Double deference displacement measurement sensor probe - Google Patents
A kind of Hall-type Double deference displacement measurement sensor probe Download PDFInfo
- Publication number
- CN208671910U CN208671910U CN201821677710.8U CN201821677710U CN208671910U CN 208671910 U CN208671910 U CN 208671910U CN 201821677710 U CN201821677710 U CN 201821677710U CN 208671910 U CN208671910 U CN 208671910U
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- China
- Prior art keywords
- hall element
- hall
- permanent magnet
- push rod
- magnet pieces
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- Expired - Fee Related
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The utility model is related to a kind of Hall-type Double deference displacement measurement sensor probe, which includes Hall element A(1), Hall element B(2), Hall element C(3), Hall element D(4), permanent magnet pieces (5) and push rod (6).Hall element A(1) and Hall element D(4) in the left side of permanent magnet pieces (5), Hall element B(2) and Hall element C(3) on the right side in permanent magnet pieces (5).Hall element A(1) and Hall element B(2) above, Hall element C(3) and Hall element D(4) below.The left end fixing permanent magnet piece (5) of push rod (6).Hall element A(1), Hall element B(2), Hall element C(3), Hall element D(4) constitute a kind of symmetrical structure displacement measurement probe, be conducive to improve sensitivity and the linearity.
Description
Technical field
The utility model is related to electronic technology, sensing technology and measuring technique, especially by electronic technology and sensing technology
It symmetrically pops one's head in conjunction with a kind of four Hall element of displacement measurement is designed.
Background technique
Micro-displacement measurement commonly uses Hall element, and common is single or two Hall elements, and this sonde configuration is simple,
But sensitivity and symmetry are difficult to ensure, design a kind of highly sensitive symmetrical probe of four Hall elements thus.
Summary of the invention
In Hall process measurement displacement, in order to improve sensitivity and symmetry, the highly sensitive of four Hall elements of one kind is designed
The symmetrical probe of degree.Device Hall element A(1), Hall element B(2), Hall element C(3), Hall element D(4), permanent magnet pieces
(5) and push rod (6)；Hall element A(1) and Hall element D(4) in the left side of permanent magnet pieces (5), Hall element B(2) and Hall
Element C(3) on the right side in permanent magnet pieces (5)；Hall element A(1) and Hall element B(2) above, Hall element C(3) and
Hall element D(4) below；The left end fixing permanent magnet piece (5) of push rod (6).Hall element A(1) and Hall element B(2) with
Permanent magnet pieces (5) be left and right axial symmetry, Hall element D(4) with Hall element C(3) with permanent magnet pieces (5) be left and right axial symmetry；
Hall element B(2) in the top of push rod, Hall element C(3) in the lower section of push rod (6), push rod (6) Hall element B(2) with
Hall element C(3) centre.Push rod (6) is mounted on the right of permanent magnet pieces (5), and permanent magnet pieces (5) and push rod (6) can be on a left sides
Right direction minute movement.Hall element A(1), Hall element B(2), Hall element C(3), Hall element D(4) use same model
Linear hall element.
The usefulness of the utility model is to use four Hall elements symmetrical, has high sensitivity and symmetry.
Detailed description of the invention
Fig. 1 is sonde configuration schematic diagram, and Fig. 2 is support circuit schematic diagram；Wherein, 1 it is Hall element A, 2 is Hall element
B, 3 it is Hall element C, 4 is Hall element D, 5 is permanent magnet pieces, 6 is push rod, 7 is instrument amplifier A, and 8 be instrument amplifier
B, 9 be instrument amplifier C.
Specific embodiment
Device Hall element A(1), Hall element B(2), Hall element C(3), Hall element D(4), permanent magnet pieces (5)
With push rod (6)；Hall element A(1) and Hall element D(4) in the left side of permanent magnet pieces (5), Hall element B(2) and Hall member
Part C(3) on the right side in permanent magnet pieces (5)；Hall element A(1) and Hall element B(2) above, Hall element C(3) and suddenly
You are element D(4) below；The left end fixing permanent magnet piece (5) of push rod (6).Hall element A(1) and Hall element B(2) with forever
Flat thin magnet (5) be left and right axial symmetry, Hall element D(4) with Hall element C(3) with permanent magnet pieces (5) be left and right axial symmetry；Suddenly
You are element B(2) in the top of push rod, Hall element C(3) in the lower section of push rod (6), push rod (6) is in Hall element B(2) and suddenly
Your element C(3) centre.Push rod (6) is mounted on the right of permanent magnet pieces (5), and permanent magnet pieces (5) and push rod (6) can be in left and right
Direction minute movement.Hall element A(1), Hall element B(2), Hall element C(3), Hall element D(4) using with model
Linear hall element.
In the embodiment, using Fig. 2 as sensor processing circuit, Hall element A(1) and Hall element B(2) connection instrument
Table amplifier A(7), Hall element C(3) and Hall element D(4) connection instrument amplifier B(8), instrument amplifier A(7) and instrument
Table amplifier B(8) it is connected to instrument amplifier C(9).
In the embodiment, when permanent magnet pieces (5) are located at Hall element A(1) it is intermediate with Hall element B(2) when, Hall element
A(1), Hall element B(2), Hall element C(3) and Hall element D(4) output same size voltage, the instrument after differential amplification
Table amplifier C(9) output voltage be 0；
Further, when permanent magnet pieces (5) move to left, Hall element A(1) output voltage be greater than Hall element B(2) it is defeated
Voltage out, instrument amplifier A(7) it exports as negative voltage；Hall element D(4) output voltage be greater than Hall element C(3) it is defeated
Voltage out, instrument amplifier B(8) output be positive voltage, instrument amplifier C(9) output be positive voltage；
Further, when permanent magnet pieces (5) move to right, Hall element A(1) output voltage be less than Hall element B(2) it is defeated
Voltage out, instrument amplifier A(7) it exports as positive voltage；Hall element D(4) output voltage be less than Hall element C(3) it is defeated
Voltage out, instrument amplifier B(8) output be negative voltage, instrument amplifier C(9) output be negative voltage.
Claims (4)
1. a kind of Hall-type Double deference displacement measurement sensor probe, feature includes Hall element A(1), Hall element B(2),
Hall element C(3), Hall element D(4), permanent magnet pieces (5) and push rod (6)；Hall element A(1) and Hall element D(4) forever
The left side of flat thin magnet (5), Hall element B(2) and Hall element C(3) on the right side in permanent magnet pieces (5)；Hall element A(1)
With Hall element B(2) above, Hall element C(3) and Hall element D(4) below；The left end fixing permanent magnet of push rod (6)
Piece (5).
2. a kind of Hall-type Double deference displacement measurement sensor probe according to claim 1, it is characterized in that Hall element A
(1) with Hall element B(2) with permanent magnet pieces (5) be left and right axial symmetry, Hall element D(4) with Hall element C(3) with permanent magnet
Piece (5) is left and right axial symmetry；Hall element B(2) in the top of push rod, Hall element C(3) in the lower section of push rod (6), push rod
(6) in Hall element B(2) and Hall element C(3) centre.
3. a kind of Hall-type Double deference displacement measurement sensor probe according to claim 1, it is characterized in that push rod (6) is pacified
On the right of the permanent magnet pieces (5), permanent magnet pieces (5) and push rod (6) can minute movements in left and right directions.
4. a kind of Hall-type Double deference displacement measurement sensor probe according to claim 1, it is characterized in that Hall element A
(1), Hall element B(2), Hall element C(3), Hall element D(4) using with model linear hall element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821677710.8U CN208671910U (en) | 2018-10-17 | 2018-10-17 | A kind of Hall-type Double deference displacement measurement sensor probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821677710.8U CN208671910U (en) | 2018-10-17 | 2018-10-17 | A kind of Hall-type Double deference displacement measurement sensor probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208671910U true CN208671910U (en) | 2019-03-29 |
Family
ID=65820809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821677710.8U Expired - Fee Related CN208671910U (en) | 2018-10-17 | 2018-10-17 | A kind of Hall-type Double deference displacement measurement sensor probe |
Country Status (1)
| Country | Link |
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| CN (1) | CN208671910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115097A (en) * | 2018-10-17 | 2019-01-01 | 湖南科技学院 | A kind of symmetrical displacement measurement sensor probe of four Hall elements |
| CN111830903A (en) * | 2020-06-16 | 2020-10-27 | 天津大学 | Absolute zero sensor applied to linear displacement table and positioning method |
-
2018
- 2018-10-17 CN CN201821677710.8U patent/CN208671910U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115097A (en) * | 2018-10-17 | 2019-01-01 | 湖南科技学院 | A kind of symmetrical displacement measurement sensor probe of four Hall elements |
| CN111830903A (en) * | 2020-06-16 | 2020-10-27 | 天津大学 | Absolute zero sensor applied to linear displacement table and positioning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20201017 |