CN207991567U - A kind of changeable type novel fiber grating sensor - Google Patents
A kind of changeable type novel fiber grating sensor Download PDFInfo
- Publication number
- CN207991567U CN207991567U CN201820512735.6U CN201820512735U CN207991567U CN 207991567 U CN207991567 U CN 207991567U CN 201820512735 U CN201820512735 U CN 201820512735U CN 207991567 U CN207991567 U CN 207991567U
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- moving casing
- horizontal
- sensing part
- hole
- center sensing
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Abstract
A kind of changeable type novel fiber grating sensor, is related to photoelectric cell, and in particular to the improved technology of grating sensor mounting structure.Including center sensing part, fibre-optical splice, pedestal and moving casing；Two pedestals are symmetrical set and are located on same axis, and the horizontal through hole that left and right penetrates through is arranged at pedestal top, has convex edge, horizontal through hole exterior side port internal thread to be connected with fixed thread ring on the inside of horizontal through hole；Moving casing is provided in horizontal through hole, moving casing inner end is provided with spring leaf；It is extended to outside moving casing end face in path end self-retaining screwed ring on the outside of moving casing；One open slot is penetrated into from impact faces in moving casing endoporus, and opening well width is equal with moving casing diameter of bore；From in the moving casing that open slot is inserted in left and right, fibre-optical splice is connect with center sensing part one end at center sensing part or so end.It needs to rotate bolt, comparatively laborious, inconvenient problem with use when solving replacing sensor described in background technology.
Description
Technical field
The utility model is related to photoelectric cells, and in particular to the improved technology of grating sensor mounting structure.
Background technology
Grating sensor is a kind of sensor measuring displacement using grating Moire fringe principle.Grating is in a block length
Intensive equidistant parallel groove, incisure density are 10~100 lines per millimeters on the optical glass of bar shaped.It is formed by grating folded
Grizzly bar line has optical amplifier effect and error average effect, thus can improve measurement accuracy.Sensor is by scale grating, instruction
Grating, light path system and four part of measuring system composition.When scale grating is moved relative to indication grating, just formed substantially by just
The light and dark Moire fringe of string rule distribution.These stripeds are moved with the speed of related movement of grating, and are shone directly into
On photoelectric cell, a string of electric pulses are obtained in their output end, number is generated by amplification, shaping, sensing and number system
Signal exports, and directly displays tested displacement.Grating sensor is applied in program-controlled, numerically-controlled machine tool and three-dimensional coordinates measurement mechanism
In, it can measure quiet, dynamic straight-line displacement and full circle angular displacement.Also there is application in fields such as mechanical oscillation measurement, deformation measurements.
Chinese patent literature ZL201710191919.7 discloses a kind of replaceable high tired fiber Bragg grating strain sensor,
The patent uses the design method that center sensing part is detached with sensor base, is convenient for the replacement or maintenance of center sensing part, adopts
With unique package technique, sensor structure has more high fatigue resistance.
The sensor of above-mentioned patent is using core pin and connecting rod and is set to fixed link L-shaped in connecting rod 242；
And be threaded outside anchoring piece outside the anchor head of center sensing part both ends, under sensor base position fixing situation, it can lead to
Overregulate nut to adjust the left and right position of center sensing part, centered on sensing part apply certain pretension.The sensor
It needing to rotate bolt when replacement, when installation, also needs to rotation bolt, and bolt pine or tension excessively have an impact global facility performance, and
Operate it is comparatively laborious, it is inconvenient to use.
Utility model content
The utility model provides a kind of changeable type novel fiber grating sensor, and the utility model solves background technology
It needs to rotate bolt, comparatively laborious, inconvenient problem with use when the replacing sensor.
To solve the above problems, the utility model adopts the following technical solution：A kind of changeable type novel fiber grating biography
Sensor, including center sensing part, fibre-optical splice, pedestal and moving casing；Two pedestals are symmetrical set and are located at same axis
On line, the horizontal through hole that left and right penetrates through is arranged at pedestal top, has convex edge, horizontal through hole exterior side port internal thread to connect on the inside of horizontal through hole
It is connected to fixed thread ring；Moving casing is provided in horizontal through hole, moving casing inner end is provided with spring leaf；On the outside of moving casing
Path end self-retaining screwed ring in extend to outside moving casing end face；One open slot penetrates into movable sleeve from impact faces
In pipe orifice, opening well width is equal with moving casing diameter of bore；Center sensing part or so end is inserted in left and right from open slot
Moving casing in, fibre-optical splice is connect with center sensing part one end.
The advantages of the utility model：Simply, conveniently, easy to use, the center sensing part structure after installation can for mounting means
To realize tensioning, stable structure.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the sectional view of pedestal.
Symbol description in figure：Center sensing part 1, induction element 11, fibre-optical splice 2, pedestal 3, chassis 3-1, horizontal through hole
3-2, moving casing 4, fixed thread ring 5, spring leaf 6, compressed spring 7 clamp rubber head 8, open slot 9.
Specific implementation mode
The utility model is described in detail with best embodiment below.
As shown in Figs. 1-2, a kind of changeable type novel fiber grating sensor, including center sensing part 1, fibre-optical splice 2,
Pedestal 3 and moving casing 4；Two pedestals 3 are symmetrical set and on same axis, and pedestal 3 has chassis 3-1, bottom below
The mounting hole of installation bolt on disk 3-1.The horizontal through hole 3-2 that left and right penetrates through, the insides horizontal through hole 3-2 are arranged at 3 top of pedestal
There are convex edge, horizontal through hole 3-2 exterior side port internal threads to be connected with fixed thread ring 5, screwed ring 5 can be open and opened with split ring
Mouth slot 9 penetrates through；Moving casing 4 is provided in horizontal through hole 3-2,4 inner end of moving casing is provided with spring leaf 6, and spring leaf 6 is withstood on
On the inside of horizontal through hole 3-2 on convex edge and 4 inner face of moving casing；In the path end self-retaining screwed ring 5 in 4 outside of moving casing
It extends to outside 4 end face of moving casing；One open slot 9 is penetrated into from above pedestal 3 in 4 endoporus of moving casing, 9 width of open slot
It is equal with 4 diameter of bore of moving casing；The end of center sensing part 1 or so is from the moving casing 4 that open slot 9 is inserted in left and right, light
2 spiral of fine connector is connected to right side 4 exterior side port of moving casing, and fibre-optical splice 2 is connect with center sensing part 1.
Center sensing part 1 can also be fixedly clamped, also may be used by the way that rubber pad is arranged in moving casing endoporus when use
Center sensing part 1 is fixed in such a way that use is following.4 endoporus both sides of moving casing are respectively there are one radial aperture, in aperture
It is provided with compressed spring 7, aperture port position, which is provided with, clamps rubber head 8, clamps 8 inner end of rubber head and connects compressed spring 7, compresses bullet
7 inner end of spring can be adhered to aperture bottom.8 outer end of clamping rubber head, which is held out against, fastens center sensing part 1 in 1 both sides of center sensing part
In 4 endoporus of moving casing.
When working sensor for a period of time after, when needing replacing or safeguard due to the problems such as shelf-life or failure, unscrew
Fibre-optical splice 2 is removed, then center sensing part 1 is extracted from open slot 9, that is, completes the work for removing center sensing part 1；Installation is new
Center sensing part 1 when, inwardly push moving casing 4 path end, center sensing part 1 is packed into from open slot 9, clamp glue
First 8 are anchored on center sensing part 1 in 4 endoporus of moving casing, unclamp again the path end of moving casing 4, the movable sleeve of left and right
Center sensing part 1 is tensioned by pipe 4 by the effect of spring leaf 6；Connect fibre-optical splice 2, you can continue to supervise measurand
It surveys.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And it does not limit the embodiments.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among changes and variations that derived from are still in the scope of protection of the utility model.
Claims (2)
1. a kind of changeable type novel fiber grating sensor, which is characterized in that including center sensing part, fibre-optical splice, pedestal
And moving casing；Two pedestals are symmetrical set and are located on same axis, and the horizontal through hole that left and right penetrates through is arranged at pedestal top,
There are convex edge, horizontal through hole exterior side port internal thread to be connected with fixed thread ring on the inside of horizontal through hole；Work is provided in horizontal through hole
Dynamic casing, moving casing inner end is provided with spring leaf；Activity is extended in path end self-retaining screwed ring on the outside of moving casing
Outside box face；One open slot is penetrated into from impact faces in moving casing endoporus, in opening well width and moving casing
Bore dia is equal；From in the moving casing that open slot is inserted in left and right, fibre-optical splice is sensed with center at center sensing part or so end
Part one end connects.
2. a kind of changeable type novel fiber grating sensor as described in claim 1, which is characterized in that moving casing endoporus
Both sides are provided with compressed spring, aperture port position is provided with clamping rubber head, clamps glue respectively there are one radial aperture in aperture
Head inner end connects compressed spring, and clamping rubber head outer end is held out against is anchored on moving casing in center sensing part both sides by center sensing part
In endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820512735.6U CN207991567U (en) | 2018-04-12 | 2018-04-12 | A kind of changeable type novel fiber grating sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820512735.6U CN207991567U (en) | 2018-04-12 | 2018-04-12 | A kind of changeable type novel fiber grating sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207991567U true CN207991567U (en) | 2018-10-19 |
Family
ID=63830773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820512735.6U Expired - Fee Related CN207991567U (en) | 2018-04-12 | 2018-04-12 | A kind of changeable type novel fiber grating sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207991567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781152A (en) * | 2019-01-18 | 2019-05-21 | 西北工业大学 | A kind of fiber Bragg grating type sensor-based system |
-
2018
- 2018-04-12 CN CN201820512735.6U patent/CN207991567U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781152A (en) * | 2019-01-18 | 2019-05-21 | 西北工业大学 | A kind of fiber Bragg grating type sensor-based system |
| CN109781152B (en) * | 2019-01-18 | 2021-07-16 | 西北工业大学 | Fiber grating type sensing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181019 Termination date: 20190412 |