CN205230178U - Magnetic sensor with than high sensitivity - Google Patents
Magnetic sensor with than high sensitivity Download PDFInfo
- Publication number
- CN205230178U CN205230178U CN201520944696.3U CN201520944696U CN205230178U CN 205230178 U CN205230178 U CN 205230178U CN 201520944696 U CN201520944696 U CN 201520944696U CN 205230178 U CN205230178 U CN 205230178U
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- China
- Prior art keywords
- chip
- modulating device
- cavity volume
- permanent magnet
- magnetic
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Abstract
The utility model provides a magnetic sensor with than high sensitivity, including casing, chip, first modulating device, permanent magnet, second modulating device and circuit device, the chip first modulating device the permanent magnet with the second modulating device is arranged in in the casing, the chip includes magnetic induction membrane and chip land, first modulating device is including the portion of bending, convex part and first appearance chamber, the circuit device includes circuit board, circuit board pad, lead wire and display device. The beneficial effects of the utility model are that owing to adopt above -mentioned technical scheme, set up the permanent magnet in the magnetism sensilla, the permanent magnet can magnetize weak magnetism sign, improves magnetic sensor's sensitivity, and the existence of magnetism sign is more convenient a little less than the response, has simple structure, and easy maintenance uses extensively advantages such as availability factor height.
Description
Technical field
The utility model belongs to field of precision measurement, especially relates to a kind of Magnetic Sensor with higher sensitivity.
Background technology
In existing technology, in some valuable bills, antifraud marker generally is magnetic mark, the true and false of valuable bills can be judged by detecting magnetic mark, but be not only provided with strong magnetic mark in medium at present, also has weak magnetic mark, to improve anti-counterfeit capability, but weak magnetic mark itself does not have magnetic, can not respond to by magnetic inductor, due to this technical matters, the magnetic inductor sold in the market can not differentiate the true and false of more existing valuable bills.
Summary of the invention
The purpose of this utility model is to provide a kind of Magnetic Sensor with higher sensitivity, especially the existence of the weak magnetic mark of induction is applicable to, permanent magnet has been set up in magnetic strength device, permanent magnet can magnetize weak magnetic mark, improve the sensitivity of Magnetic Sensor, this magnetic sensor arrangement is simple, easy to operate, be widely used, service efficiency is high.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of Magnetic Sensor with higher sensitivity, comprise housing, chip, first modulating device, permanent magnet, second modulating device and line unit, it is characterized in that: described chip, described first modulating device, described permanent magnet and described second modulating device are placed in described housing, described chip comprises magnetic induction film and chip bonding pad, described magnetic induction film is for responding to the magnetic field of anti-counterfeiting mark in testee, described chip bonding pad is connected with described magnetic induction film as the input end of described chip, described first modulating device comprises bending part, protuberance and the first cavity volume, described protuberance is located at the inner side of described bending part, described bending part and described protuberance define described first cavity volume, the second cavity volume is provided with in described second modulating device, described permanent magnet is placed in described second cavity volume, described line unit comprises wiring board, circuit pads, lead-in wire and display device, described chip is fixed on described wiring board, described wiring board is placed in described second cavity volume, the input end of described chip is connected with described wiring board, described lead-in wire one end is connected with described circuit pads, the other end stretches out described shell and is connected with described display device.
Preferably, the described protuberance of described first modulating device is located at the inner side of described bending part, and described protuberance reduces the opening of described first cavity volume, but completely not closed, defines the cavity volume that young tripe is large.
Preferably, described housing adopts non-magnetic metal or nonmetally to make, and is provided with magnetosphere on its surface, and described chip is placed in the detection faces side of described housing.
The advantage that the utility model has and good effect are: owing to adopting technique scheme, in magnetic strength device, set up permanent magnet, and permanent magnet can magnetize weak magnetic mark, improves the sensitivity of Magnetic Sensor, responds to the existence of weak magnetic mark, convenient; There is structure simple, easy to maintenance, be widely used, service efficiency advantages of higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is partial structurtes enlarged diagram of the present utility model.
In figure: 1, housing; 2, chip; 2-1, magnetic induction film; 2-2, chip bonding pad; 3, the first modulating device; 3-1, bending part; 3-2, protuberance; 3-3, the first cavity volume; 4, permanent magnet; 5, the second modulating device, 5-1, the second cavity volume; 6, line unit; 6-1, wiring board; 6-2, circuit pads; 6-3, lead-in wire; 6-4, display device.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, to embodiment of the present utility model, effect and principle of work etc. as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
As Fig. 1, shown in Fig. 2, the utility model provides a kind of Magnetic Sensor with higher sensitivity, comprise housing 1, chip 2, first modulating device 3, permanent magnet 4, second modulating device 5 and line unit 6, it is characterized in that: chip 2, first modulating device 3, permanent magnet 4 and the second modulating device 5 are placed in housing 1, chip 2 comprises magnetic induction film 2-1 and chip bonding pad 2-2, magnetic induction film 2-1 is for responding to the magnetic field of anti-counterfeiting mark in testee, chip bonding pad 2-2 is connected with magnetic induction film 2-2 as the input end of chip 2, first modulating device 3 comprises bending part 3-1, protuberance 3-2 and the first cavity volume 3-3, protuberance 3-2 is located at the inner side of bending part 3-1, bending part 3-1 and protuberance 3-2 defines the first cavity volume 3-3, the second cavity volume 5-1 is provided with in second modulating device 5, permanent magnet 4 is placed in the second cavity volume 5-1, line unit 6 comprises wiring board 6-1, circuit pads 6-2, lead-in wire 6-3 and display device 6-4, chip 2 is fixed on wiring board 6-1, wiring board 6-1 is placed in 5-1 in the second cavity volume, the input end of chip 2 is connected with wiring board 6-1, lead-in wire 6-3 one end is connected with circuit pads 6-2, the other end stretches out shell 1 and is connected with display device 6-4.
Preferably, the protuberance 3-2 of the first modulating device 3 is located at the inner side of bending part 3-1, and protuberance 3-2 reduces the opening of the first cavity volume 3-3, but completely not closed, defines the cavity volume that young tripe is large.
Preferably, housing 1 adopts non-magnetic metal or nonmetally to make, and is provided with magnetosphere on its surface, and chip 2 is placed in the detection faces side of housing 2.
The course of work of this example: housing 1 surface is provided with magnetosphere, bill to be measured is pressed close to detection faces, magnetic induction film 2-1 can sense that magnetic identifies, if for strong magnetic mark can directly be responded to, if weak magnetic mark, the permanent magnet 4 being positioned over the second cavity volume 5-1 can be magnetized, and chip 2 obtains input signal, be sent to display device 6-4 by wiring board 6-1 and lead-in wire 6-3, display device 6-4 can show the true and false of valuable bills.
The advantage that the utility model has and good effect are: owing to adopting technique scheme, in magnetic strength device, set up permanent magnet, and permanent magnet can magnetize weak magnetic mark, improves the sensitivity of Magnetic Sensor, responds to the existence of weak magnetic mark, convenient; There is structure simple, easy to maintenance, be widely used, service efficiency advantages of higher.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (3)
1. one kind has the Magnetic Sensor of higher sensitivity, comprise housing, chip, first modulating device, permanent magnet, second modulating device and line unit, it is characterized in that: described chip, described first modulating device, described permanent magnet and described second modulating device are placed in described housing, described chip comprises magnetic induction film and chip bonding pad, described magnetic induction film is for responding to the magnetic field of anti-counterfeiting mark in testee, described chip bonding pad is connected with described magnetic induction film as the input end of described chip, described first modulating device comprises bending part, protuberance and the first cavity volume, described protuberance is located at the inner side of described bending part, described bending part and described protuberance define described first cavity volume, the second cavity volume is provided with in described second modulating device, described permanent magnet is placed in described second cavity volume, described line unit comprises wiring board, circuit pads, lead-in wire and display device, described chip is fixed on described wiring board, described wiring board is placed in described second cavity volume, the input end of described chip is connected with described wiring board, described lead-in wire one end is connected with described circuit pads, the other end stretches out described shell and is connected with described display device.
2. a kind of Magnetic Sensor with higher sensitivity according to claim 1, it is characterized in that: the described protuberance of described first modulating device is located at the inner side of described bending part, described protuberance reduces the opening of described first cavity volume, but completely not closed, defines the cavity volume that young tripe is large.
3. a kind of Magnetic Sensor with higher sensitivity according to claim 1, is characterized in that: described housing adopts non-magnetic metal or nonmetally to make, and is provided with magnetosphere on its surface, and described chip is placed in the detection faces side of described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520944696.3U CN205230178U (en) | 2015-11-23 | 2015-11-23 | Magnetic sensor with than high sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520944696.3U CN205230178U (en) | 2015-11-23 | 2015-11-23 | Magnetic sensor with than high sensitivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230178U true CN205230178U (en) | 2016-05-11 |
Family
ID=55905226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520944696.3U Expired - Fee Related CN205230178U (en) | 2015-11-23 | 2015-11-23 | Magnetic sensor with than high sensitivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205230178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109676A1 (en) * | 2017-12-07 | 2019-06-13 | 威海华菱光电股份有限公司 | Magnetic image sensor |
-
2015
- 2015-11-23 CN CN201520944696.3U patent/CN205230178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019109676A1 (en) * | 2017-12-07 | 2019-06-13 | 威海华菱光电股份有限公司 | Magnetic image sensor |
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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: 20160511 Termination date: 20171123 |