CN202083410U - Detecting device for Hall element - Google Patents
Detecting device for Hall element Download PDFInfo
- Publication number
- CN202083410U CN202083410U CN2011202109674U CN201120210967U CN202083410U CN 202083410 U CN202083410 U CN 202083410U CN 2011202109674 U CN2011202109674 U CN 2011202109674U CN 201120210967 U CN201120210967 U CN 201120210967U CN 202083410 U CN202083410 U CN 202083410U
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- China
- Prior art keywords
- hall element
- detected
- pick
- threaded rod
- magnetic field
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- Expired - Lifetime
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Abstract
The utility model discloses a detecting device for a Hall element, which comprises a supporting seat for placing the Hall element to be detected, a detecting circuit connected with two output ends of the Hall element to be detected, and a magnetic field generating component in sliding fit with the supporting seat. By using the magnetic induction characteristics of the Hall element, when the magnetic field strength is enough, the Hall element transfers an induced magnetic signal to the detecting circuit connected with the Hall element. The detecting device provided by the utility model has a simple structure, and not only can the basic functions of the Hall element be tested, but also the consistency of the magnetic induction distance of the Hall element can be tested.
Description
Technical field
The utility model relates to a kind of pick-up unit, particularly a kind of device that is used for the detection of Hall element supplied materials.
Background technology
Hall element is a kind of Magnetic Sensor based on Hall effect, has many advantages, their sound construction, volume is little, in light weight, the life-span is long, and is easy for installation, power consumption is little, frequency height (can reach 1MHz), vibration resistance, the pollution or the corrosion of not being afraid of dust, greasy dirt, steam and salt fog etc., developed into a Magnetic Sensor product family numerous in variety, obtained widespread use in fields such as motor speed measuring, position probing, isolated controlling.
Hall element generally is applied in the key position of product, and quality, the performance of Hall element are significant to product.Electronic component market brand is various now, and capability and performance is uneven.Guarantee raw material quality, except selecting the regular supply merchant, also should strengthen ingredient inspection.At present, also do not have special pick-up unit on the market, only can't guarantee the consistance of Hall element function and magnetic induction distance, and then have influence on the performance of product with the detection of product appearance, weldability at Hall element.
The utility model content
The utility model provides a kind of Hall element pick-up unit, can carry out the basic function test to Hall element, and the consistance of its magnetic induction distance is tested.
A kind of Hall element pick-up unit comprises the bearing that is used to place Hall element to be detected, the testing circuit that is connected with two output terminals of Hall element to be detected, and the magnetic field production part that is slidingly matched with bearing.
Utilize Hall element magnetic induction characteristic, when magnetic field intensity was enough, Hall element was passed to the testing circuit that is attached thereto with the magnetic signal of sensing, testing circuit work.
Described magnetic field production part is a magnet, and described bearing is provided with threaded rod, and and this threaded rod between the slide block of threaded engagement, described magnet is fixedly mounted on this slide block.Move by rotation threaded rod drive slide block and magnet, the change of magnet and Hall element distance for Hall element, produces the magnetic field of varying strength.
Described bearing is provided with the scale of arranging along the threaded rod direction.Scale is used for measuring the distance between magnet and the Hall element, changes Hall element, and duplicate detection also writes down the pairing position of rule of magnet, and relatively whether the magnetic induction distance with a collection of Hall element is consistent, detects its consistance to the magnetic induction distance.
Described testing circuit can be selected testing circuit well known in the prior art, as preferably, described testing circuit comprises light emitting diode, resistance and electric capacity, in parallel after described light emitting diode is connected with described resistance with described electric capacity, be connected then between two output terminals of Hall element to be detected.When Hall element was sensed magnetic field, light emitting diode was bright, illustrate the Hall element function of surveying intact; When Hall element induction during less than magnetic field, light emitting diode goes out, illustrate to survey Hall element defective.
The utility model Hall element pick-up unit, simple in structure, not only can carry out the basic function test to Hall element, can also test the consistance of its magnetic induction distance.
Description of drawings
Fig. 1 is the stereographic map of the utility model Hall element pick-up unit;
Fig. 2 is the vertical view of the utility model Hall element pick-up unit;
Fig. 3 is the circuit diagram of testing circuit in the utility model Hall element pick-up unit.
Embodiment
In order to understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with accompanying drawing and preferred implementation.
Referring to Fig. 1, Fig. 2, the utility model Hall element pick-up unit comprises the bearing 3 that is used to place Hall element to be detected, rotating threaded rod 4 is installed on the bearing 3, threaded engagement between slide block 5 and the threaded rod 4, slide block 5 can slide along threaded rod 4 axis when threaded rod 4 rotated.
Fig. 3 is the circuit diagram of this Hall element pick-up unit testing circuit, and is in parallel with capacitor C after light emitting diode D connects with resistance R, inserts two output terminals of Hall element (HALL) then.When Hall element is experienced magnetic field, bright as the light emitting diode D of pilot lamp 8 (among Fig. 1,2 as seen), illustrate to survey the Hall element function intact.Write down the scale of the pairing scale of slide block this moment, change Hall element, duplicate detection and the position of writing down the pairing scale of slide block, relatively whether the magnetic induction distance with a collection of Hall element is consistent, detects its consistance to the magnetic induction distance.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a Hall element pick-up unit comprises the bearing that is used to place Hall element to be detected, it is characterized in that, is provided with the testing circuit that is connected with two output terminals of Hall element to be detected, and the magnetic field production part that is slidingly matched with described bearing.
2. Hall element pick-up unit according to claim 1 is characterized in that, described magnetic field production part is a magnet.
3. Hall element pick-up unit according to claim 2 is characterized in that described bearing is provided with threaded rod, and and this threaded rod between the slide block of threaded engagement, described magnet is fixedly mounted on this slide block.
4. Hall element pick-up unit according to claim 3 is characterized in that, described bearing is provided with the scale of arranging along the threaded rod direction.
5. according to each described Hall element pick-up unit of claim 1 to 4, it is characterized in that, described testing circuit comprises light emitting diode, resistance and electric capacity, in parallel after described light emitting diode is connected with described resistance with described electric capacity, be connected then between two output terminals of Hall element to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202109674U CN202083410U (en) | 2011-06-21 | 2011-06-21 | Detecting device for Hall element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202109674U CN202083410U (en) | 2011-06-21 | 2011-06-21 | Detecting device for Hall element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202083410U true CN202083410U (en) | 2011-12-21 |
Family
ID=45344036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202109674U Expired - Lifetime CN202083410U (en) | 2011-06-21 | 2011-06-21 | Detecting device for Hall element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202083410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252710A (en) * | 2011-06-21 | 2011-11-23 | 天津奥美自动化系统有限公司 | Hall element detection device |
| CN105318895A (en) * | 2014-06-20 | 2016-02-10 | 宝山钢铁股份有限公司 | Steel wire liner conveyor belt joint sensing device |
-
2011
- 2011-06-21 CN CN2011202109674U patent/CN202083410U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252710A (en) * | 2011-06-21 | 2011-11-23 | 天津奥美自动化系统有限公司 | Hall element detection device |
| CN105318895A (en) * | 2014-06-20 | 2016-02-10 | 宝山钢铁股份有限公司 | Steel wire liner conveyor belt joint sensing device |
| CN105318895B (en) * | 2014-06-20 | 2019-04-23 | 宝山钢铁股份有限公司 | Steel wire lining conveyor belt belt lacing sensing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |