CN207300175U - A kind of grating displacement sensor - Google Patents
A kind of grating displacement sensor Download PDFInfo
- Publication number
- CN207300175U CN207300175U CN201721333906.0U CN201721333906U CN207300175U CN 207300175 U CN207300175 U CN 207300175U CN 201721333906 U CN201721333906 U CN 201721333906U CN 207300175 U CN207300175 U CN 207300175U
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- grating
- scale
- circuit board
- emitting module
- pcb circuit
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Abstract
The utility model discloses a kind of grating displacement sensor, body silently is set including both ends, type groove processed on body, the scale grating that 45 ° of opposing body is obliquely installed is set in type groove, the side of scale grating thickness direction sets emitting module, opposite side sets pulley assembly and emitting module, and 45 ° of pulley assembly opposing body is obliquely installed and is slidably connected with scale grating, and emitting module and receiving unit are connected by connecting pole with pulley assembly;Emitting module and receiving unit are also set to emitting module with scale grating and coordinate scale grating to form Moire fringe in position, and receiving unit can read Moire fringe and obtain displacement;The grating reading head assembly for further including electrical connection and controlling emitting module to work with receiving unit, grating reading head assembly is located in type groove and is connected with pulley assembly, and pulley assembly is slided along scale grating and drives emitting module, receiving unit and grating reading head component matching move and receiving unit is read matched Moire fringe in real time and is obtained displacement.
Description
Technical field
It the utility model is related to technical field of electro-optical measurement, more particularly to a kind of grating displacement sensor.
Background technology
Grating scale, also referred to as grating rule displacement sensor (grating scale sensor）, worked using the optical principle of grating
Measurement feedback device.Grating scale is usually applied in the closed loop servo system of numerically-controlled machine tool, can be used as straight-line displacement or angle
The detection of displacement.
Known grating displacement sensor structure is 90 degree of installation site, and such grating displacement sensor is at present on the market
There are 2 class representative products, one is Japanese three rich grating scales, connect reading head and coaster, because spring force resolution is made with bone rod
Section bar body can be abraded in assembling process into reading head, influences production efficiency, can also increase installation in finished product installation process
Difficulty;The second is domestic new day grating scale, reading head and coaster are directly connected to the spring of diameter 1.0mm, except Japan three is rich
The deficiency of grating scale, also as spring foozle, rigging error, structure birth defect, causes unstable product quality, measurement
Precision is inaccurate, since part tolerance and rigging error cause spring structure job insecurity (stress size and Orientation shakiness
It is fixed）, the loose contact of the bearing and scale grating (key light grid) of trolley is caused, scale grating (key light grid) is directly affects and refers to
Show gap and the Moire fringe of grating, be damaged data precision and repeatability, and trolley to grating scale, scale grating, refer to
Show that the requirement of the installation accuracy of the devices such as grating is high.Grating displacement sensor structure also has 45 degree of installation site, representative products
It is domestic letter and grating scale, reading head and coaster is connected with diameter 1.0mm springs, this mounting structure decomposes power in section bar body
On interior key light grid, scratch section bar body is avoided, improves production efficiency, reduces installation difficulty, deficiency is spring
Stress, manufacture rigging error cause measurement more extensive, are not suitable for high-acruracy survey.
For this reason, the creator of this exercises combines itself design research and development and using the technical problem encountered in process, design
A kind of grating displacement sensor, the actual conditions for manufacturing and assembling for part, improves the measurement accuracy of grating sensor, carries
High efficiency, reduces production cost.
Utility model content
The technical problems to be solved in the utility model is for defect present in existing design technology, provides a kind of grating
Displacement sensor, it is dynamic that what which can also stablize in the case of coaster is without spring move up in scale grating, restricted
The influence of spring is small, and production is easy for installation.
In order to solve the above technical problems, the technical solution that the utility model is taken is as follows:A kind of grating displacement sensor, bag
Include both ends and be equipped with body silently, a type groove is formed with the body, relatively described 45 ° of inclinations of body are equipped with the type groove
The scale grating of setting, the side of the scale grating thickness direction are equipped with receiving unit, and opposite side is equipped with pulley assembly successively
And emitting module, relatively described 45 ° of body is obliquely installed and slides company with the scale grating pulley assembly in position
Connect, the pulley assembly can be slided along the scale grating, and the emitting module and receiving unit pass through connecting pole and the cunning
Car component connects and it can be followed to be slided along the scale grating;The emitting module and receiving unit exist with the scale grating
The emitting module is also set on position coordinates the scale grating to form Moire fringe, and the receiving unit can read institute
State Moire fringe and obtain displacement;The grating reading head for further including electrical connection and controlling emitting module to work with receiving unit
Component, the grating reading head assembly activity are installed in the type groove and are connected with the pulley assembly by elastic parts,
The pulley assembly is slided along the scale grating and drives the emitting module, receiving unit and grating reading head component matching
Move and the receiving unit is read matched Moire fringe in real time and is obtained displacement.
It is expanded on further as to above-mentioned technical proposal：
In the above-mentioned technical solutions, the body is aluminium alloy extrusions body.
In the above-mentioned technical solutions, the emitting module includes the first PCB circuit board and indication grating, the indication grating
Be arranged in position between the emitting module and the scale grating, in first PCB circuit board set light source and
The control circuit of the light source luminescent is controlled, first PCB circuit board is also electrically connected simultaneously with the grating reading head assembly
It is controlled by it and makes the light source luminescent, the light source luminescent is irradiated described in the indication grating and the scale grating and cooperation
Indication grating is mobile relative to the scale grating and forms the Moire fringe.
In the above-mentioned technical solutions, the receiving unit includes the second PCB circuit board, and in second PCB circuit board
Control circuit equipped with the photoelectric sensor for reading the Moire fringe and the control photoelectric sensor work, described second
PCB circuit board is also electrically connected and is controlled by it with the grating reading head assembly, measures the photoelectric sensor and reads
The Moire fringe and obtain displacement.
In the above-mentioned technical solutions, the grating reading head assembly includes pedestal, and main control PCB circuits are set on the pedestal
Plate, the main control PCB circuit board are electrically connected with first PCB circuit board and the second PCB circuit board;The main control
PCB circuit board can control first PCB circuit board to work and make the light source luminescent and irradiate the scale grating and instruction
Grating, and/or control the 2nd PCB circuit boards work and the photoelectric sensor is scanned the Moire fringe and is obtained
Displacement.
In the above-mentioned technical solutions, the pulley assembly includes coaster seat and some rolling bearings, some axis of rolling
Hold and be connected with the coaster seat by screw and be in rolling contact with the scale grating, the coaster seat made is along the scale light
Grid transverse shifting;The mounting groove for elastic parts installation is also formed with the coaster seat.
In the above-mentioned technical solutions, the coaster seat is equipped with five rolling bearings, five rolling bearing wherein two axis of rolling
Hold and be in rolling contact with the one side in the scale raster width direction, another three rolling bearing and the scale grating thickness direction
One side is in rolling contact.
In the above-mentioned technical solutions, the elastic parts includes bone rod and spring, bone rod one end movable inlaying
In the mounting groove, the other end is movably embedded in the arc groove that system is opened on the pedestal, makes the pulley assembly and institute
State the connection of grating reading head assembly;The end that the bone rod is embedded in the arc groove is additionally provided with embedded hole, the pedestal
Position processed is opened with the arc groove and is equipped with a spring resettlement groove and location hole, and the spring matching is installed in the spring peace
Put in groove, and two free ends of the spring are respectively embedded into the embedded hole and the location hole so that the bone rod and
The pedestal is connected by the spring damping to lock.
In the above-mentioned technical solutions, the connecting pole runs through the pulley assembly, and two connections are set in the pulley assembly
Column, the both ends of two connecting poles are locked by screw and first PCB circuit board and the second PCB circuit board, the connection
Column is the brass tube of disposed thread.
The beneficial effects of the utility model are:The pattern displacement sensor of the utility model is by the mark of existing grating scale
Ruler grating opposing body installs at angle at 45 °, and the pulley assembly made can also be smoothly in the scale light in the case of no spring
Grid move, and reduce the required precision to part and assembling, improve the measurement accuracy of grating displacement sensor;The utility model
Pattern displacement sensor filled up existing grating scale mounting structure blank in the form of a single and fixed, reduce the coaster of grating scale
Being restricted by spring is influenced, production and assembly and easy to use, measurement efficiency and precision height.
Brief description of the drawings
Fig. 1 is the installation diagram of the utility model；
Fig. 2 is the side cross section view of Fig. 1；
Fig. 3 is the exploded view of Fig. 1；
Fig. 4 is the installation diagram that the utility model removes body；
The scale grating, pulley assembly and receiving unit installation diagram of Fig. 5 the utility model;
Fig. 6 is the optical principle schematic diagram of the grating displacement sensor measurement of the utility model.
In figure, 1. bodies, 101. type grooves, 102. embedding grooves;2. silently;3. scale grating;4. emitting module, 41. first
PCB circuit board;42. indication grating, 43. light sources;5. pulley assembly, 51. coaster seats, 52. rolling bearings, 53. screws, 54. peaces
Tankage;6. receiving unit, 61. second PCB circuit boards, 62. photoelectric sensors;7. elastic parts, 71. bone rods, 72. springs,
711. embedded hole;8. grating reading head assembly, 81. pedestals, 811. arc grooves, 812. spring resettlement grooves;9. connecting pole.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
The embodiment described by reference to attached drawing is exemplary, it is intended to for explaining the application, and it is not intended that right
The limitation of the application.In the description of the present application, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ",
" width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
Described easy to description the application and simplifying, rather than instruction or imply that signified device or element there must be specific side
Position, with specific azimuth configuration and operation, therefore it is not intended that limitation to the application.In addition, term " first ", " second "
Description purpose is only used for, and it is not intended that indicating or implying relative importance or imply the technical characteristic indicated by indicating
Quantity.Thus, " first " is defined, the feature of " second " can be expressed or implicitly includes one or more spy
Sign.In the description of the present application, " several ", " multiple " are meant that two or more, unless otherwise clearly specific
Limit.Unless otherwise clearly defined and limited, in this application, the art such as term " installation ", " connected ", " connection ", " fixation "
Language should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected;Can be machinery
Connection, can also be electrically connected;It can be directly connected, can also be indirectly connected by intermediary, can be two elements
Internal connection.For the ordinary skill in the art, above-mentioned term can be understood in the application as the case may be
In concrete meaning.Unless otherwise clearly defined and limited, in this application, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
Cross the other characterisation contact between them.And fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature directly over second feature and oblique upper, or only
Represent that fisrt feature level height is less than second feature.
A kind of attached drawing 1-6 examples specific embodiment of the utility model.The present embodiment is to be expected that by design one kind
Grating displacement sensor, can reduce the required precision to part and assembling, improve light when being allowed to in automatic measurement system
The measurement accuracy of displacement transducer.Refer to the attached drawing 1-6, a kind of grating displacement sensor, it includes body 1, and the body 1 is preferred
Aluminium alloy extrusions body, the both ends (two side ends of X-direction) of the body 1 set silently 2, a type groove are formed with the body 1
101, the interior scale grating 3 for being equipped with relatively described 1 overturning angle at 45 ° of body and setting of the type groove 10, refer to the attached drawing 2-4, institute
It is in the embedding groove 102 that 45° angle is set to state 101 bottom of type groove and be formed with an opposed vertical plane, and the scale grating 3 is embedded at this
In embedding groove 102 and the scale grating 3 is set to stretch out the embedding groove 102 along its width W;3 thickness of scale grating
The side of direction D is equipped with receiving unit 6, and opposite side is equipped with pulley assembly 5 and emitting module 4, in practice, the tackle pulley successively
Also overturning angle at 45 ° sets and is slidably connected with the scale grating 3 relatively described body 1 part 5 in position, the so-called company of slip
Connect and refer to:The pulley assembly 5 is shelved on the scale grating 1, and the pulley assembly 5 can be along the scale grating
3 slide;Refer to the attached drawing 5, in the present embodiment, the pulley assembly 5 include coaster seat 51 and some rolling bearings 52, if described
Dry milling dynamic bearing 52 is connected with the coaster seat 51 by screw 53 and is in rolling contact with the scale grating 3, the cunning made
Vehicle seat 51 can be along 3 transverse shifting of scale grating;Refer to the attached drawing 5, the coaster seat 51 are equipped with five rolling bearings 52, five rollings
In dynamic bearing 52, the top end face for having two rolling bearings 52 and the width W of the scale grating 3 is in rolling contact, meanwhile, this two
Rolling bearing (52 (a）、52(b）) it is to be installed in along Y-direction on the coaster seat 51, and two rolling bearing 52 is to be installed in
The both ends of the length direction of coaster seat 51, set simultaneously, because the scale grating 3 is overturning angle at 45 °, the coaster seat
The top end face of 51 widths is equipped with two rolling bearings (52 again（a）、52(b）), thus when coaster seat 51 is installed in the scale
When on grating 3, due to the gravity of itself of coaster seat 51（Gravity is decomposed into through-thickness D and in the width direction two of W
Component, two component are equal in magnitude, and the component of W is rolling bearing (52 (a in the width direction）、52(b））It is in rolling contact the cunning
The active force of the top end face of 51 width of vehicle seat) under, the coaster seat 51 without spring can also stablize along the scale light
Grid 3 slide;And the other three rolling bearing（52(c)、52(d)、52(e)）With the upper surface (D of the 3 thickness direction D of scale grating
One of the two sides in direction) it is in rolling contact, and three rolling bearing（52(c)、52(d)、52(e)）Correspond in coaster seat 51 and institute
State in the parallel plane in upper surface of 3 thickness direction D of scale grating into isosceles triangle position distribution (refer to the attached drawing 5);With reference to
Attached drawing 2-6, the emitting module 4 and receiving unit 6 are connected with the pulley assembly 5 by connecting pole 9 and can follow it along institute
Scale grating 3 is stated to slide;In embodiment, the connecting pole 9 runs through the pulley assembly 5, and sets two in the pulley assembly 5
Connecting pole 9, the both ends of two connecting poles 9 pass through the first PCB circuit board 41 and receiving unit 6 of screw 53 and emitting module 4
The second PCB circuit board 61 lock, and the connecting pole 9 be preferably disposed thread brass tube;The emitting module 4 and reception
Component 6 is also set to the emitting module 4 with the scale grating 3 and coordinates the scale grating 3 to form More in position
Striped (attached drawing is not shown), the receiving unit 6 can read the Moire fringe and obtain displacement;Further include electrical connection simultaneously
The grating reading head assembly 8 for controlling emitting module 4 to work with receiving unit 6,8 activity of grating reading head assembly are installed in institute
State in type groove 101 and be connected with the pulley assembly 5 by elastic parts 7, the matching elasticity is formed with the coaster seat 51
The mounting groove 54 that component 7 is installed;The pulley assembly 5 is slided along the scale grating 3 and drives the emitting module 4, receives
Component 6 and the matching of grating reading head assembly 8 movement simultaneously make the receiving unit 6 read matched Moire fringe in real time and obtain position
(Moire fringe includes the parameter of matching displacement to shifting amount）.It should be noted that in actual use, the body 1 and described
Scale grating 3 is installed on the movable part of Auto-Test System, and the pulley assembly 5 and emitting module 4 and reception
Component 6 is then fixed by fixed component of the grating reading head assembly 8 indirectly with Auto-Test System, and during measurement, movable part moves
Move and drive scale grating 3 to move and the pulley assembly 5 is slided on scale grating 3 and make the emitting module 4 with connecing
Receive component 6 and coordinate the measurement for completing displacement.
In the present embodiment, refer to the attached drawing 2-4 and attached drawing 6, the emitting module 4 include 41 (attached drawing of the first PCB circuit board
Simply schematically represent the PCB circuit board, and the component in PCB circuit board is not shown) and indication grating 42（With reference to attached
Fig. 6）, the indication grating 42 is arranged between the emitting module 4 and the scale grating 3 in position, and described first
Light source 43 (attached drawing is not shown, selects photo-electroluminescence diode in practice) and the control light source hair are set in PCB circuit board 41
The control circuit of light, first PCB circuit board 41 are also electrically connected with the grating reading head assembly 8 and are controlled by it and make
The light source luminescent, in practice, first PCB circuit board 41 are the main control PCB circuit boards with grating reading head assembly 8
（Attached drawing is not shown）Electrical connection, which is used to plan as a whole the work for controlling the grating displacement sensor;
Light source 43 described in refer to the attached drawing 6, which shines, to be irradiated the indication grating 42 and the scale grating 3 and coordinates the indication grating 42
Moved relative to the scale grating 3 and form the Moire fringe;The receiving unit 6 includes 61 (attached drawing of the second PCB circuit board
Simply schematically represent the PCB circuit board, and the component in PCB circuit board is not shown), and the 2nd PCB circuits
Plate 61 is equipped with the photoelectric sensor 62 (refer to the attached drawing 6) for reading the Moire fringe and the control photoelectric sensor 62 works
Control circuit, second PCB circuit board 61 is also electrically connected and is controlled by it with the grating reading head assembly 8, makes institute
Photoelectric sensor 62 is stated to measure and read the Moire fringe and obtain displacement, in practice, second PCB circuit board 61
It is to be electrically connected with the main control PCB circuit board of grating reading head assembly 8 (attached drawing is not shown);The grating reading head assembly
8 include setting the main control PCB circuit board described in pedestal 81 on pedestal 81 (attached drawing not being shown）, the main control PCB circuit board
First PCB circuit board 41 can be controlled to work and the light source 43 is shone and is irradiated the scale grating 3 and indication grating
42, and/or control the 2nd PCB circuit boards 61 to work and the photoelectric sensor 62 is scanned the Moire fringe and is obtained
Obtain displacement.
Refer to the attached drawing 2-5, the elastic parts 7 include bone rod 71 and spring 72,71 one end of bone rod activity edge
In the mounting groove 54, the other end is movably embedded in the arc groove 811 that system is opened on the pedestal 81, passes through the bone
Head rod 11 makes the pulley assembly 5 be connected with the grating reading head assembly 8;In practice, for 11 both ends of bone rod
Locking, for being to make the bone by covering the first PCB circuit board 41 on coaster seat 51 positioned at the end of pulley assembly 5
Rod 71 is locked with respect to coaster seat 51;And for the fixation positioned at one end of grating reading head assembly 8, then be by such as lower structure come
Realize:The end that the bone rod 11 is embedded in the arc groove 811 is additionally provided with embedded hole 711, and the pedestal 81 matches institute
State arc groove 811 and open position processed and be equipped with a spring resettlement groove 812 and location hole (attached drawing is not shown), the spring 72 matches
It is installed in the spring resettlement groove 812, and two free ends of the spring 72 are respectively embedded into the embedded hole 711 and described fixed
Position hole, so that the bone rod 71 and the pedestal 81 damp connection locking by the spring 72.
The pattern displacement sensor of the present embodiment installs the scale grating opposing body angle at 45 ° of existing grating scale,
The pulley assembly 5 made can also be moved smoothly in the case of no spring in the scale grating, be reduced to part and assembling
Required precision, improve the measurement accuracy of grating displacement sensor;The pattern displacement sensor of the present embodiment has filled up existing
Grating scale mounting structure blank in the form of a single and fixed, reduce the coaster of grating scale is influenced by spring restriction, production and assembly
And easy to use, measurement efficiency and precision height.
The above, is only the utility model preferred embodiment, and not the utility model is made in any form
Limitation, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any to be familiar with sheet
Technical professional, is not departing from the range of technical solutions of the utility model, is made when using the technology contents of the disclosure above
A little change or the equivalent embodiment for being modified to equivalent variations, as long as being without departing from the content of the technical scheme of the utility model, foundation
The utility model technology refers to any simple modification, equivalent change and modification made to above example, belongs to this practicality
In the range of new technique scheme.
Claims (9)
- A kind of 1. grating displacement sensor, it is characterised in that:Body silently is equipped with including both ends, a type is formed with the body Groove, the interior scale grating being obliquely installed equipped with relatively described 45 ° of a body of the type groove, the one of the scale grating thickness direction Side is equipped with receiving unit, and opposite side is equipped with pulley assembly and emitting module successively, and the pulley assembly is relatively described in position 45 ° of body is obliquely installed and is slidably connected with the scale grating, and the pulley assembly can be slided along the scale grating, described Emitting module and receiving unit are connected with the pulley assembly by connecting pole and it can be followed to be slided along the scale grating;Institute State emitting module and receiving unit and be also set to the emitting module cooperation scale in position with the scale grating Grating forms Moire fringe, and the receiving unit can read the Moire fringe and obtain displacement;Further include electrical connection simultaneously Emitting module and the grating reading head assembly of receiving unit work are controlled, the grating reading head assembly activity is installed in the type It is connected on groove and with the pulley assembly by elastic parts, the pulley assembly is slided along the scale grating and driven described Emitting module, receiving unit and grating reading head component matching are mobile and the receiving unit is read matched More's bar in real time Line and obtain displacement.
- A kind of 2. grating displacement sensor according to claim 1, it is characterised in that:The body is aluminium alloy extrusions sheet Body.
- A kind of 3. grating displacement sensor according to claim 1 or 2, it is characterised in that:The emitting module includes the One PCB circuit board and indication grating, the indication grating are arranged on the emitting module and the scale grating in position Between, light source is set in first PCB circuit board and controls the control circuit of the light source luminescent, the first PCB circuits Plate is also electrically connected with the grating reading head assembly and is controlled by it and makes the light source luminescent, and the light source luminescent irradiates institute State indication grating and the scale grating and coordinate the indication grating mobile relative to the scale grating and form the More Striped.
- A kind of 4. grating displacement sensor according to claim 3, it is characterised in that:The receiving unit includes second PCB circuit board, and second PCB circuit board is equipped with the photoelectric sensor for reading the Moire fringe and the control photoelectricity The control circuit of working sensor, second PCB circuit board are also electrically connected with the grating reading head assembly and by its controls System, measures the photoelectric sensor and reads the Moire fringe and obtain displacement.
- A kind of 5. grating displacement sensor according to claim 4, it is characterised in that:The grating reading head assembly includes Pedestal, main control PCB circuit board, the main control PCB circuit board and first PCB circuit board and second are set on the pedestal PCB circuit board is electrically connected;The main control PCB circuit board can control first PCB circuit board to work and make the light source Shine and irradiate the scale grating and indication grating, and/or control the 2nd PCB circuit boards to work and make the photoelectricity Sensor scans the Moire fringe and obtains displacement.
- A kind of 6. grating displacement sensor according to claim 5, it is characterised in that:The pulley assembly includes coaster seat With some rolling bearings, some rolling bearings are connected with the coaster seat by screw and are rolled with the scale grating and connect Touch, the coaster seat made is along the scale grating transverse shifting;Also it is formed with the coaster seat and is installed for the elastic parts Mounting groove.
- A kind of 7. grating displacement sensor according to claim 6, it is characterised in that:The coaster seat is equipped with five and rolls Bearing, five rolling bearing wherein two rolling bearings and the one side in the scale raster width direction are in rolling contact, another three rolling The one side of dynamic bearing and the scale grating thickness direction is in rolling contact.
- A kind of 8. grating displacement sensor according to claim 7, it is characterised in that:The elastic parts includes bone rod And spring, described bone rod one end are movably embedded in the mounting groove, the other end is movably embedded on the pedestal and opens system In arc groove, the pulley assembly is set to be connected with the grating reading head assembly;It is recessed that the bone rod is embedded in the arc The end of groove is additionally provided with embedded hole, and the pedestal matching arc groove opens position processed and is equipped with a spring resettlement groove and positioning Hole, the spring matching is installed in the spring resettlement groove, and two free ends of the spring are respectively embedded into the embedded hole With the location hole so that the bone rod connects locking with the pedestal by the spring damping.
- A kind of 9. grating displacement sensor according to claim 8, it is characterised in that:The connecting pole runs through the coaster Component, and two connecting poles are set in the pulley assembly, the both ends of two connecting poles pass through screw and first PCB circuit board Lock with the second PCB circuit board, the connecting pole is the brass tube of disposed thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721333906.0U CN207300175U (en) | 2017-10-17 | 2017-10-17 | A kind of grating displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721333906.0U CN207300175U (en) | 2017-10-17 | 2017-10-17 | A kind of grating displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207300175U true CN207300175U (en) | 2018-05-01 |
Family
ID=62415348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721333906.0U Expired - Fee Related CN207300175U (en) | 2017-10-17 | 2017-10-17 | A kind of grating displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207300175U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525470A (en) * | 2017-10-17 | 2017-12-29 | 东莞市普迈精密测量科技有限公司 | A kind of grating displacement sensor |
| CN109253704A (en) * | 2018-10-29 | 2019-01-22 | 西南交通大学 | Monitoring device for fragment-free track slab deformation |
-
2017
- 2017-10-17 CN CN201721333906.0U patent/CN207300175U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107525470A (en) * | 2017-10-17 | 2017-12-29 | 东莞市普迈精密测量科技有限公司 | A kind of grating displacement sensor |
| CN107525470B (en) * | 2017-10-17 | 2023-12-26 | 东莞市普迈精密测量科技有限公司 | Grating displacement sensor |
| CN109253704A (en) * | 2018-10-29 | 2019-01-22 | 西南交通大学 | Monitoring device for fragment-free track slab deformation |
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