CN203687863U - Magnetic steel displacement sensor based on linear magneto-sensitive element - Google Patents
Magnetic steel displacement sensor based on linear magneto-sensitive element Download PDFInfo
- Publication number
- CN203687863U CN203687863U CN201420042203.2U CN201420042203U CN203687863U CN 203687863 U CN203687863 U CN 203687863U CN 201420042203 U CN201420042203 U CN 201420042203U CN 203687863 U CN203687863 U CN 203687863U
- Authority
- CN
- China
- Prior art keywords
- linear
- linear magneto
- magnetic steel
- sensor
- magneto 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 - Fee Related
Links
Images
Abstract
A magnetic steel displacement sensor based on linear magneto-sensitive elements includes a bar-shaped circuit board, and a piece of magnetic steel positioned on one side of the bar-shaped circuit board. Multiple linear magneto-sensitive elements are sequentially and linearly arranged on the bar-shaped circuit board at equal intervals. Each linear magneto-sensitive element is connected with a control module through a signal processing module. The control module is connected with a communication module. The magnetic steel displacement sensor based on the linear magneto-sensitive elements employs the linear magneto-sensitive elements, uses an added corresponding control circuit to process a signal, can realize high-precision and wide-range linear measurement on the displacement of a piece of tested magnetic steel, and is low in production cost and small in size.
Description
Technical field
The utility model relates to a kind of displacement transducer, particularly a kind of magnetic steel displacement sensor based on linear magneto sensor.
Background technology
Along with the rapid raising of industrial automatization, displacement transducer is being brought into play more and more important effect in scientific research and production practices.Conventional displacement transducer mainly contains capacitor and inductor formula displacement transducer, laser displacement sensor, grating displacement sensor, magnetic displacement transducer etc. at present.Capacitor and inductor formula displacement transducer precision is high, but is subject to the impact of testee shape, material and test environment temperature, humidity; Ultrasonic displacement sensor measurement range is wide, but precision is not high; Grating displacement sensor measuring accuracy is high, but production cost is high, volume is fragile greatly; Existing magnetic displacement transducer adopts switching value output, and measuring accuracy is low, and can not realize the linear measurement to testee displacement.
Summary of the invention
For having overcome shortcoming of the prior art, the utility model provides a kind of magnetic steel displacement sensor based on linear magneto sensor.Adopt linear magneto sensor, add corresponding control circuit signal is processed, can realize the displacement of tested magnet steel is carried out to high-accuracy wide-range linear measurement, and production cost is low, volume is little.
The technical scheme that the utility model is taked is: the magnetic steel displacement sensor based on linear magneto sensor, comprise strip circuit plate, be positioned at the magnet steel of strip circuit plate one side, multiple linear magneto sensors equidistantly, successively linear array on strip circuit plate, each linear magneto sensor is by a signal processing module link control module, and control module connects communication module.
The sensitive direction of any one linear magneto sensor is parallel to the orientation of linear magneto sensor.
Spacing between any two linear magneto sensors is less than the linear sensing interval of linear magneto sensor
Described linear magneto sensor is linear reluctance, linear giant magnetoresistance or linear magnetic tunnel junction element.
Described control module is one-chip computer module.
The magnetic steel displacement sensor of the utility model based on linear magneto sensor, technique effect is as follows:
1), this displacement transducer adopts linear magneto sensor as sensitive element, gathers the changes of magnetic field information that tested magnet steel produces in motion process, can realize the contactless high-precision linear measurement to magnetic steel displacement.This magnetic steel displacement sensor can be realized the displacement of tested magnet steel is carried out to high-accuracy wide-range linear measurement.
2), displacement measurement precision is up to 0.01mm, and production cost is low, volume is little.
3), by regulating the arrangement pitches of some linear magneto sensors on bar shaped circuit board, can also adjust this utility model and measure the range of displacement, communication module can realize information transfer function.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the linear output interval schematic diagram of magneto sensor of the present utility model;
Wherein: arrow a represents magnet steel direction of motion; Arrow b represents magnetic susceptibility direction of principal axis;
Fig. 3 is circuit module connection diagram of the present utility model.
Embodiment
As shown in Figure 1, Figure 3, magnetic steel displacement sensor based on linear magneto sensor, comprise strip circuit plate 1, multiple linear magneto sensors 2 equidistantly, successively linear array on strip circuit plate 1, each linear magneto sensor 2 is by signal processing module 3 link control modules 4, and control module 4 connects communication module 5.Described control module 4 is one-chip computer module.
Described linear magneto sensor 2 is the one in linear reluctance, linear giant magnetoresistance or linear magnetic tunnel junction element.They are as the sensitive element of this displacement transducer, with a determining deviation successively linear array on strip circuit plate.
Claims (5)
1. the magnetic steel displacement sensor based on linear magneto sensor, comprise strip circuit plate (1), be positioned at the magnet steel (6) of strip circuit plate (1) one side, it is characterized in that, multiple linear magneto sensors (2) equidistantly, successively linear array on strip circuit plate (1), each linear magneto sensor (2) is by a signal processing module (3) link control module (4), and control module (4) connects communication module (5).
2. the magnetic steel displacement sensor based on linear magneto sensor according to claim 1, is characterized in that, the sensitive direction of any one linear magneto sensor (2) is parallel to the orientation of linear magneto sensor (2).
3. the magnetic steel displacement sensor based on linear magneto sensor according to claim 1, is characterized in that, the spacing between any two linear magneto sensors (2) is less than the linear sensing interval of linear magneto sensor (2).
4. according to the magnetic steel displacement sensor based on linear magneto sensor described in claim 1 or 2 or 3, it is characterized in that, described linear magneto sensor (2) is linear reluctance, linear giant magnetoresistance or linear magnetic tunnel junction element.
5. the magnetic steel displacement sensor based on linear magneto sensor according to claim 1, is characterized in that, described control module (4) is one-chip computer module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042203.2U CN203687863U (en) | 2014-01-17 | 2014-01-17 | Magnetic steel displacement sensor based on linear magneto-sensitive element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042203.2U CN203687863U (en) | 2014-01-17 | 2014-01-17 | Magnetic steel displacement sensor based on linear magneto-sensitive element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203687863U true CN203687863U (en) | 2014-07-02 |
Family
ID=51009750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420042203.2U Expired - Fee Related CN203687863U (en) | 2014-01-17 | 2014-01-17 | Magnetic steel displacement sensor based on linear magneto-sensitive element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203687863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974569A (en) * | 2017-12-27 | 2019-07-05 | Tdk株式会社 | Magnetic Sensor |
-
2014
- 2014-01-17 CN CN201420042203.2U patent/CN203687863U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974569A (en) * | 2017-12-27 | 2019-07-05 | Tdk株式会社 | Magnetic Sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203719811U (en) | Weak voltage signal detection device of micro-voltage sensor | |
| CN204101635U (en) | A kind of microresistivity survey instrument and electronic product process units | |
| CN103235189B (en) | A kind of micro-resistance high-precision measuring method based on double-current voltage ratio method and realize the measuring system of the method | |
| CN201795805U (en) | Magnetic encoder adopting giant-Hall-effect magnetic sensing element | |
| da Rocha et al. | Capacitive sensor for three-axis force measurements and its readout electronics | |
| CN108917587B (en) | A kind of resistance-strain type curvature sensor based on favour stone full-bridge principle | |
| CN203687863U (en) | Magnetic steel displacement sensor based on linear magneto-sensitive element | |
| CN102645582A (en) | High-accuracy frequency measurement system | |
| CN203224207U (en) | Magnetic grid ruler precision measurement instrument | |
| CN108759652B (en) | A kind of curvature measurement method based on favour stone full-bridge principle | |
| CN104776791B (en) | A kind of method of displacement sensor and measurement displacement | |
| CN203376085U (en) | High precision double-end fixing resonant tuning fork type pressure sensor | |
| CN202562673U (en) | Strain acquisition system based on voltage compensation | |
| CN201503273U (en) | Position detection device and signal processing device thereof | |
| CN201083518Y (en) | Waveform height measuring systems | |
| CN203241176U (en) | Non-linear compensating circuit of pressure sensor | |
| CN201387313Y (en) | Hall straight line displacement sensor | |
| CN202048885U (en) | Magnetic induction type position detecting device | |
| CN202533177U (en) | Control circuit of novel improved infrared thermometer | |
| CN112161560B (en) | Displacement sensing device and method based on permanent magnet flux measurement | |
| CN203981183U (en) | A kind of gear sensor | |
| CN103808244A (en) | Magnetic encoder for position measurement | |
| CN205080181U (en) | High temperature resistant hall current sensor | |
| CN203191103U (en) | Environment analog quantity acquisition module | |
| CN202956122U (en) | Environment data collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140702 Termination date: 20170117 |