CN205175336U - Radioresistance LVDT sensor - Google Patents
Radioresistance LVDT sensor Download PDFInfo
- Publication number
- CN205175336U CN205175336U CN201520825719.9U CN201520825719U CN205175336U CN 205175336 U CN205175336 U CN 205175336U CN 201520825719 U CN201520825719 U CN 201520825719U CN 205175336 U CN205175336 U CN 205175336U
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- coil
- radioresistance
- wire
- inner casing
- lvdt sensor
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Abstract
The utility model relates to a radioresistance LVDT sensor, include and follow shell, coil skeleton and the iron core that sets gradually in the extroversion, the last winding of coil skeleton has the coil, be equipped with the inner shell between shell and the coil skeleton, the inner shell adopts the radioresistance material, and the material of just should radiationing hardening is lead, lead alloy or tungsten alloy, it has the filling layer to fill between coil and the inner shell, the filling layer adopts polyphenylene sulfide fibre material. According to the technical solution provided by the utility model, the LVDT sensor, the inner shell adopts radioresistance materials such as plumbous, lead alloy or tungsten alloy, it has the filling layer that adopts polyphenylene sulfide fibre material to pack between coil and inner shell, makes this LVDT sensor have higher radioresistance ability, can be at steady operation under the radiation environment.
Description
Technical field
The utility model relates to displacement transducer technology field, is specifically related to a kind of radioresistance LVDT sensor.
Background technology
Linear variable difference transformer (LinearVariableDifferentialTransformer, LVDT) can be interpreted as the movable transformer of iron core simply.It is made up of the parts such as a primary coil, two secondary coils, iron core, coil rack, shells.Iron core is the moving element of LVDT, and when moving freely in the coil of slush molding, difference and the iron core displacement of two output voltages of secondary coil are linear.Therefore, poor by measuring voltage, after calculating, just can obtain the position of iron core.LVDT applies in a lot of industrial control system, is mainly used in measuring linear displacement signal.
Current LVDT sensor is by improving loop construction, coil winding method and redundancy structure, the performance of sensor is improve in anti-vibration, resistance to mechanical impact, heat shock resistance and resistant to damage etc., but existing LVDT sensor does not make targeted design to radiation environment, the radiation-resistant performance requirement of sensor cannot be met.
Utility model content
The purpose of this utility model is to provide a kind of radioresistance LVDT sensor, and this LVDT sensor has higher capability of resistance to radiation, can in stable operation under radiation environment.
For achieving the above object, the utility model have employed following technical scheme:
A kind of radioresistance LVDT sensor, comprises the shell, coil rack and the iron core that set gradually from outside to inside; Described coil rack is wound with coil; Inner casing is provided with between described shell and coil rack; Described inner casing adopts radiation resistance material, and this radiation resistance material is lead, lead alloy or tungalloy; Packed layer is filled with between described coil and inner casing; Described packed layer adopts polyphenylene sulfide fibre material.
Described shell comprises the cylinder blanket cavity of both ends open and is fixedly connected on two outer top covers at cylinder blanket cavity two ends respectively; Described outer top cover offers the first through hole be mechanically connected for iron core and measured device.
Described inner casing comprises the cylindrical inner casing cavity of both ends open and is fixedly connected on two internal head covers at cylindrical inner casing cavity two ends respectively; Described internal head cover offers the second through hole be mechanically connected for iron core and measured device.
Offer the through hole for iron core movement in the middle of described coil rack, and this coil rack adopts polyphenylene sulfide fibre material.
One end of described coil is connected with the lead-in wire for connecting external circuit; Described lead-in wire comprises wire and gauze screen; Described wire is plumbous wire, and its inner is connected with coil, and its outer end is placed on outer side through outer top cover; Described gauze screen is wrapped in the outside of wire outer end, and this gauze screen and outer top cover are weldingly connected.
From above technical scheme, the utility model, by adopting the inner casing of the radiation resistance materials such as lead, lead alloy or tungalloy, can play mechanical protection and radiation-resistant effect; By being filled with the packed layer adopting polyphenylene sulfide fibre material between inner casing and coil, packed layer can be made to have certain capability of resistance to radiation as insulation course; By adopting polyphenylene sulfide fibre material to make coil rack, coil rack is made also to have certain capability of resistance to radiation while as coil supporter; By adopting plumbous wire and gauze screen to be made into the lead-in wire connecting external circuit, the capability of resistance to radiation of LVDT sensor can be improved further.Therefore, LVDT sensor described in the utility model, has higher capability of resistance to radiation, can in stable operation under radiation environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein:
1, shell, 2, inner casing, 3, outer top cover, 4, internal head cover, 5, iron core, 6, packed layer, 7, coil rack, 8, coil, 9, wire, 10, gauze screen.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
A kind of radioresistance LVDT sensor as shown in Figure 1, comprises the shell 1, inner casing 2, coil rack 7 and the iron core 5 that set gradually from outside to inside.Described coil rack 7 is wound with coil 8.Described coil is wound on coil rack according to certain rule, is the carrier of working current.Packed layer 6 is filled with between described coil 8 and inner casing 2.Described packed layer 6 adopts polyphenylene sulfide fibre material.Polyphenylene sulfide fibre material has stronger capability of resistance to radiation, is filled between coil and inner casing by the packed layer adopting polyphenylene sulfide fibre material to make, and packed layer can be made to play insulation and radiation-resistant effect.
Described shell 1 comprises the cylinder blanket cavity of both ends open and is welded on two outer top covers 3 at cylinder blanket cavity two ends respectively.Described outer top cover 3 offers the first through hole be mechanically connected for iron core and measured device.Described shell adopts steel matter, for the protection of the inner structure of LVDT sensor.
Described inner casing 2 comprises the cylindrical inner casing cavity of both ends open and is fixedly connected on two internal head covers 4 at cylindrical inner casing cavity two ends respectively.Described internal head cover 4 offers the second through hole be mechanically connected for iron core and measured device.Described inner casing adopts the radiation resistance material manufactures such as lead, lead alloy or tungalloy; play the effect of the inner structure of protection LVDT sensor further; and by adopting the radiation resistance materials such as lead, lead alloy or tungalloy, make LVDT sensor have stronger capability of resistance to radiation.
Offer the through hole for iron core movement in the middle of described coil rack 7, and this coil rack adopts polyphenylene sulfide fibre material.The utility model makes coil rack by adopting the polyphenylene sulfide fibre material with stronger radiation protection ability, makes coil rack also have certain capability of resistance to radiation while as coil supporter.
One end of described coil 8 is connected with the lead-in wire for connecting external circuit; Described lead-in wire comprises wire 9 and gauze screen 10; Described wire 9 is plumbous wire, and its inner is connected with coil 8, and its outer end (the outer end guide line of described wire, through outer end cap, is exposed to the part of outer side) is placed on outside shell 1 through outer top cover 3.Described wire is wound around between two by the plumbous wire of multiply, is made in pairs.Described gauze screen 10 is wrapped in wire 9 outer end, and this gauze screen 10 is weldingly connected with outer top cover 3.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (4)
1. a radioresistance LVDT sensor, comprises the shell, coil rack and the iron core that set gradually from outside to inside; Described coil rack is wound with coil; It is characterized in that: between described shell and coil rack, be provided with inner casing; Described inner casing adopts radiation resistance material, and this radiation resistance material is lead, lead alloy or tungalloy; Packed layer is filled with between described coil and inner casing; Described packed layer adopts polyphenylene sulfide fibre material.
2. a kind of radioresistance LVDT sensor according to claim 1, is characterized in that: described inner casing comprises the cylindrical inner casing cavity of both ends open and is fixedly connected on two internal head covers at cylindrical inner casing cavity two ends respectively; Described internal head cover offers the second through hole be mechanically connected for iron core and measured device.
3. a kind of radioresistance LVDT sensor according to claim 1, is characterized in that: offer the through hole for iron core movement in the middle of described coil rack, and this coil rack adopts polyphenylene sulfide fibre material.
4. a kind of radioresistance LVDT sensor according to claim 1, is characterized in that: one end of described coil is connected with the lead-in wire for connecting external circuit; Described lead-in wire comprises wire and gauze screen; Described wire is plumbous wire, and its inner is connected with coil, and its outer end is placed on outer side through outer top cover; Described gauze screen is wrapped in the outside of wire outer end, and this gauze screen and outer top cover are weldingly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520825719.9U CN205175336U (en) | 2015-10-25 | 2015-10-25 | Radioresistance LVDT sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520825719.9U CN205175336U (en) | 2015-10-25 | 2015-10-25 | Radioresistance LVDT sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175336U true CN205175336U (en) | 2016-04-20 |
Family
ID=55739318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520825719.9U Expired - Fee Related CN205175336U (en) | 2015-10-25 | 2015-10-25 | Radioresistance LVDT sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205175336U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448973A (en) * | 2018-12-20 | 2019-03-08 | 安徽感航电子科技有限公司 | Double redundancy LVDT anticrossed jam design method |
| CN111739709A (en) * | 2020-08-07 | 2020-10-02 | 宁波中车时代传感技术有限公司 | Lightweight suspension sensor and preparation method thereof |
| CN114184118A (en) * | 2021-12-13 | 2022-03-15 | 中国核动力研究设计院 | High-temperature-resistant strong-radiation LVDT sensor and assembly process thereof |
-
2015
- 2015-10-25 CN CN201520825719.9U patent/CN205175336U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448973A (en) * | 2018-12-20 | 2019-03-08 | 安徽感航电子科技有限公司 | Double redundancy LVDT anticrossed jam design method |
| CN111739709A (en) * | 2020-08-07 | 2020-10-02 | 宁波中车时代传感技术有限公司 | Lightweight suspension sensor and preparation method thereof |
| CN111739709B (en) * | 2020-08-07 | 2020-11-13 | 宁波中车时代传感技术有限公司 | Lightweight suspension sensor and preparation method thereof |
| CN114184118A (en) * | 2021-12-13 | 2022-03-15 | 中国核动力研究设计院 | High-temperature-resistant strong-radiation LVDT sensor and assembly process thereof |
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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: 20160420 Termination date: 20181025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |