CN202853630U - Target applicable to inductance type miniaturized circle proximity sensor - Google Patents
Target applicable to inductance type miniaturized circle proximity sensor Download PDFInfo
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- CN202853630U CN202853630U CN 201220429376 CN201220429376U CN202853630U CN 202853630 U CN202853630 U CN 202853630U CN 201220429376 CN201220429376 CN 201220429376 CN 201220429376 U CN201220429376 U CN 201220429376U CN 202853630 U CN202853630 U CN 202853630U
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- inductance type
- pedestal
- proximity transducer
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Abstract
Disclosed is a target applicable to an inductance type miniaturized circle proximity sensor, comprising a T-shaped base, and a target block (3) made of soft-magnetic material, wherein the target block (3) is a cuboid which upper surface is made into a curvature radius arc surface/plane; the transverse symmetric center line of the target block (3) is not coincided with the X-direction central axis of a chassis (2); the target block (3) is fixed upon the circular chassis (2) and forms a target assembly together with the chassis (2); the target assembly is located upon and fixedly connected with the step side of the circular hole of the T-shaped base (1); and a positioning pin (4) is fixedly connected below the target assembly chassis (2). According to the utility model, when the lateral motion of the target relative to the sensor is limited within a small range (-3mm to +3mm), the output inductance of the sensor is no less than 5mH, or the output inductance of the sensor is no greater than 5mH. Therefore, the movable range of the moving object is made to be more definite and concentrative.
Description
Technical field
The utility model is the target of measuring about being mainly used in inductance type Miniature Circular proximity transducer.
Background technology
In the prior art, the mensuration that is used for inductance type Miniature Circular proximity transducer and measurand target range, the target that adopts, mostly be and the suitable cylindrical soft magnetic material parts of (about Φ 16.4mm) of the end face diameter of inductance type Miniature Circular proximity transducer, its material trademark and thickness all have regulation (thick 2.5mm), be defined as the standard target, it is that sensor approaches and leave the whether qualified calibrating target of characteristic, in both relative motions along sensor axis to carrying out, and the definition axis of orientation is Z axis, but the sideway movement of the relative sensor Z axis of target is adopted in many places, realizes that target is toward or away from sensor.Defining this axis of orientation is X-axis, and X-axis is perpendicular to Z axis.The customer requirements target reaches little displacement, and Z axis is the axis of symmetry of directions X, when directions X motion surpasses Z axis ± 3mm, and sensors inductance output＜5mH.At present, the Application standard target when Z≤4mm, the scope of X will 〉=± 6mm, the inductance value La＜5mH of proximity transducer output this moment.And when Z≤2.5mm, the scope of X must 〉=± 8.8mm, the inductance value La＜5mH of proximity transducer output this moment.For this reason, carried out design of the present utility model, design object is target, and this target is defined as special-shaped target.
Summary of the invention
The purpose of this utility model is during for the motion of the tested object side direction (X axis) of inductance type proximity transducer, provide a kind of can the scope of activities of moving object is more definite, concentrate, can reach the target of little displacement request.
The purpose of this utility model can reach by following measures.A kind of target for inductance type Miniature Circular proximity transducer, the target piece that has a T shape pedestal and made by soft magnetic material, it is characterized in that, described target piece 3 is cuboids that a upper surface is shaped with radius-of-curvature arc surface or plane, and its lateral symmetry center line does not overlap with the X-direction central axis on chassis 2, target piece 3 is fixed on the circular base plate 2 and chassis 2 forms a target assembly, this target assembly is located and connects firmly on the step card of above-mentioned T shape pedestal 1 circular port, and register pin 4 is connected firmly below target assembly chassis 2.
The utility model has following effect than prior art.
1. existing target is defined as the standard target, this target after the Z-direction distance is definite, Z=(2.5 ± 0.2 for example) mm, when directions X proximity transducer outputting inductance value 〉=5mH, the scope of X will be ± 8.8mm; And the utility model can be realized: after Z-direction distance is determined, and Z=(2.5 ± 0.2 for example) mm, in the time of in directions X ± 3mm, proximity transducer outputting inductance value 〉=5mH; Otherwise, sensor outputting inductance value＜5mH then.
2. the utility model can be realized target with respect to the sensor sideway movement, be limited among a small circle (when for example ± 3mm) moving, sensor outputting inductance 〉=5mH, otherwise sensor outputting inductance≤5mH.The scope of activities that makes moving object is more definite, concentrated.
Description of drawings
Fig. 1 is the overall cut-open view of the utility model abnormity target.
Fig. 2 is the vertical view of Fig. 1.
Among the figure: 1 pedestal, 2 chassis, 3 target pieces, 4 register pins.
Embodiment
Further specify the utility model below in conjunction with drawings and Examples, but therefore the utility model is not limited among the described scope of embodiments.
Consult Fig. 1, Fig. 2.A kind of target for inductance type Miniature Circular proximity transducer, having 1, one of a T shape pedestal can require carry out the difformity setting to the different distance of reaction of sensor output 5mH according to the user, the rectangular parallelepiped target piece 3 of being made by soft magnetic material.Material is that the rectangular parallelepiped length * wide * height of soft magnetism magnetic conductor is 11 * 7 * 2.5mm
3, upper surface is the larger arc surface of radius-of-curvature, also can be as required the plane.Radius of curvature R=the 28mm of upper surface arc surface.Target piece 3 is fixed on the circular base plate 2.The center is made by non-magnetic stainless steel with the disk pedestal 1 of double-screw bolt, and the register pin 4 that it and non-magnetic stainless steel make welds together, and is shaped with the positioning mark of regulation on the disk.The chassis 2 that target piece 3 is laid is the disks that non-magnetic metal forms, and the above carries out positioning mark required when welding, and it and target piece 3 usefulness laser bonding form a global facility together.The lateral symmetry center line of target piece 3 does not overlap with the X-direction central axis on chassis 2.The target block edge aligns with chassis edge.Target piece 3 is fixed on the circular base plate 2 and chassis 2 forms a target assembly, and this target assembly is located and connects firmly on the step card of above-mentioned T shape pedestal 1 circular port, and register pin 4 is connected firmly below target assembly chassis 2.
Position and direction during for assurance target and main body installation are fixed on register pin 4 on the pedestal 1 in advance.The abnormity target is connected by the double-screw bolt on the pedestal 1 with main body, penetrates the main frame reserving installation hole, and with the double-screw bolt on the mounting nuts screw-in pedestal 1, realization is connected with main frame.Process chassis 2, pedestal 1, behind the register pin 4, carry out components welding: register pin 4 is welded in the pilot hole on the pedestal 1, and is parallel to the T shape coupling shaft (being double-screw bolt) of pedestal 1.For reducing welding heat affected zone, can adopt laser bonding to form the product of Fig. 1 shape.
Claims (5)
1. target that is used for inductance type Miniature Circular proximity transducer, the target piece (3) that has a T shape pedestal (1) and made by soft magnetic material, it is characterized in that, described target piece (3) is the cuboid that a upper surface is shaped with radius-of-curvature arc surface or plane, and its lateral symmetry center line does not overlap with the X-direction central axis of chassis (2), target piece (3) is fixed on the upper and target assembly of chassis (2) formation of circular base plate (2), this target assembly is located and connects firmly on the step card of above-mentioned T shape pedestal (1) circular port, and register pin (4) is connected firmly below on target assembly chassis (2).
2. the target for inductance type Miniature Circular proximity transducer according to claim 1 is characterized in that, material is that the rectangular parallelepiped length * wide * height of soft magnetism magnetic conductor is 11 * 7 * 2.5mm
3, the radius of curvature R=28mm of upper surface arc surface.
3. the target for inductance type Miniature Circular proximity transducer according to claim 1, it is characterized in that, the center is made by non-magnetic stainless steel with the disk pedestal (1) of double-screw bolt, the register pin (4) that it and non-magnetic stainless steel form welds together, and is shaped with the positioning mark of regulation on the disk.
4. the target for inductance type Miniature Circular proximity transducer according to claim 1 is characterized in that, the chassis (2) that target piece (3) is laid is a disk that non-magnetic metal forms.
5. the target for inductance type Miniature Circular proximity transducer according to claim 1 is characterized in that, register pin (4) is welded in the pilot hole on the pedestal (1), and is parallel to the T shape coupling shaft of pedestal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429376 CN202853630U (en) | 2012-08-28 | 2012-08-28 | Target applicable to inductance type miniaturized circle proximity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220429376 CN202853630U (en) | 2012-08-28 | 2012-08-28 | Target applicable to inductance type miniaturized circle proximity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853630U true CN202853630U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220429376 Expired - Fee Related CN202853630U (en) | 2012-08-28 | 2012-08-28 | Target applicable to inductance type miniaturized circle proximity sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853630U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248336A (en) * | 2016-07-31 | 2016-12-21 | 成都凯天电子股份有限公司 | The preparation method of black box high impact shock test target |
-
2012
- 2012-08-28 CN CN 201220429376 patent/CN202853630U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248336A (en) * | 2016-07-31 | 2016-12-21 | 成都凯天电子股份有限公司 | The preparation method of black box high impact shock test target |
| CN106248336B (en) * | 2016-07-31 | 2019-09-20 | 成都凯天电子股份有限公司 | The preparation method of black box high impact shock test target |
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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 |
Granted publication date: 20130403 Termination date: 20210828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |