CN208012519U - Displacement sensor - Google Patents
Displacement sensor Download PDFInfo
- Publication number
- CN208012519U CN208012519U CN201820410352.8U CN201820410352U CN208012519U CN 208012519 U CN208012519 U CN 208012519U CN 201820410352 U CN201820410352 U CN 201820410352U CN 208012519 U CN208012519 U CN 208012519U
- Authority
- CN
- China
- Prior art keywords
- movable axis
- shell
- cavity
- displacement sensor
- induction pieces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model is related to a kind of displacement sensors, by being provided with limiting slot in shell component cavity wall, stopper protrusion is provided on movable axis, or, it is provided with stopper protrusion in shell component cavity wall, limiting slot is provided on movable axis, relative rotation occurs between stopper protrusion and limiting slot activity cooperation limitation shell component and movable axis, in this way, inductive signal can correctly reflect the relative position between follower and induction pieces, effective guarantee can be obtained by carrying out mobile phone shell roughness measurement or orbital docking elevation carrection, precision by inductive signal.
Description
Technical field
The utility model is related to field of sensing technologies more particularly to a kind of displacement sensors.
Background technology
Displacement sensor can be used for measuring phone housing flatness, can be used for the essence to orbital docking height
Accuracy measures.Inductive displacement transducer, capacitive displacement transducer, electric vortex type displacement sensor or Hall-type position
In displacement sensor, it would generally be provided with action piece and induction pieces in shell, when measuring, moved when using displacement sensor
Relative position changes between workpiece meeting and induction pieces, and induction pieces relative position can be felt between action piece and induction pieces
It answers.But when due to being axially moved along cavity in action piece cavity defined by shell, due to meeting between action piece and shell
Opposite spinning movement occurs, in this way, whether cannot be just to inductance, capacitance, current vortex or the induction in magnetic field, inductive signal
Really reflect relative position between action piece and induction pieces, therefore, by inductive signal carry out phone housing roughness measurement,
The precision of orbital docking elevation carrection cannot ensure.
Utility model content
The utility model aim is to provide a kind of displacement sensor have the advantages that high measurement accuracy.
The above-mentioned technical purpose of the utility model technical scheme is that：
The first aspect of the utility model is related to a kind of displacement sensor, including：Shell component with cavity, can be along described
Cavity is axially movably placed in the cavity and carries the movable axis of follower, be set in the shell component for pair with
The induction pieces that real-time relative position between the follower is incuded, and it is set to the shell component and the movable axis
Between, the actuator for driving the movable axis to reset, the movable axis is limited to by the shell component in a predetermined stroke
Activity, the cavity correspond to cavity wall and are provided with along the axially extending limiting slot of the cavity is parallel to, and the movable axis is provided with
Being movably placed in the limiting slot can be along the limiting slot extending direction activity to prevent the movable axis and the shell component
Between the stopper protrusion that relatively rotates, alternatively, the movable axis correspond to outer wall be provided with it is axial along the cavity is parallel to
The limiting slot of extension, the cavity be provided be movably placed in the limiting slot can along the limiting slot extending direction activity with
Prevent the stopper protrusion to relatively rotate between the movable axis and the shell component.
Further, the actuator is axial axially almost the same with the cavity and is sheathed on the movable axis
Pagoda spring is provided with for housing and positioning the actuator one with the position that the actuator abuts against on the movable axis
The location indentations at end, the actuator are abutted against with the location indentations opposite side with the shell component.
Further, the follower is set close to described induction pieces one end on the movable axis, the other end is provided with tool
There is the measurement head of ball type of contact surface.
Further, telescopic dirt-proof boot is provided between the measurement head and the shell component.
Further, the shell component includes：Shell and the skeleton being placed in the shell, the shell open up institute
Cavity is stated, the induction pieces and the pcb board being electrically connected with the induction pieces are set on the skeleton, and the skeleton is provided with
For the movable activity space of the follower.
Further, by cable transmission inductive signal, the shell is provided with to be worn the induction pieces for the cable
Perforation, be additionally provided on the shell and the perforation be connected to facilitate the gap of the cable and induction pieces installation.
Further, it is described perforation the cable between be also arranged with covering it is described perforation, the gap it is close to realize
The rubber outlet protective case of envelope.
Further, the baffle ring for preventing the movable axis abjection is provided on the shell.
Further, it is sealed by sealing ring between the shell and the skeleton.
Further, the follower is magnetic part, and the induction pieces are Hall sensor；The follower is iron core,
The induction pieces are coil；The follower be variable capacitance the first pole plate, the induction pieces be include the variable capacitance
The second pole plate RC oscillating circuits or LC oscillating circuits.
In conclusion the utility model has the advantages that：
1, the displacement sensor of the utility model is provided with by being provided with limiting slot in shell component cavity wall on movable axis
Stopper protrusion is provided with limiting slot, stopper protrusion and limit alternatively, being provided with stopper protrusion in shell component cavity wall on movable axis
Relative rotation occurs between slot activity cooperation limitation shell component and movable axis, in this way, inductive signal can correctly reflect follower
Relative position between induction pieces carries out mobile phone shell roughness measurement or orbital docking elevation carrection, essence by inductive signal
Accuracy can obtain effective guarantee.
2, pagoda spring one end can be positioned by location indentations being arranged on movable axis, shell component and the pagoda spring other end
It abuts, can not only carry out location and installation to pagoda spring, it is also ensured that the movable stabilization of movable axis.
3, pcb board and induction pieces are provided on skeleton, entire skeleton, pcb board and induction pieces can be packed into direct convenience
In shell component.
4, gap being arranged on shell can allow cable and skeleton etc. to be more easily installed.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the decomposition texture schematic diagram of the displacement sensor of the utility model embodiment one.
Fig. 2 is the first cross-sectional view of the displacement sensor of the utility model embodiment one.
Fig. 3 is the second cross-sectional view of the displacement sensor of the utility model embodiment one.
Specific implementation mode
In the following detailed description, it is proposed that many details, in order to the comprehensive understanding to the utility model.But
It is, it will be apparent to those skilled in the art that the utility model can be in one in not needing these details
Implement in the case of a little details.Below the description of embodiment is used for the purpose of providing by showing the example of the utility model
The utility model is more fully understood.
Below in conjunction with attached drawing, the technical solution of the utility model embodiment is described.
Embodiment one：
As shown in Figs. 1-3, the present embodiment is related to a kind of displacement sensor, is primarily useful for mobile phone shell roughness measurement, rail
Road docks elevation carrection, vehicle load measures etc., realizes that relative position incudes between follower and induction pieces, and convert
For corresponding required mobile phone shell shell surface relative altitude indicated value, raceway surface relative altitude indicated value, the instruction of vehicle load weight
Value etc..
Upper displacement sensors include mainly：Shell component 1 with cavity 11 can be movably placed in chamber along cavity 11 is axial
In body 11 and carry the movable axis 2 of follower 21, be set in shell component 1 for pair follower 21 between it is real-time relatively
The induction pieces 3 that position is incuded, and be set between shell component 1 and movable axis 2, the drive for driving movable axis 2 to reset
Moving part 4, it is movable that movable axis 2 is limited to by shell component 1 in a predetermined stroke, and the correspondence cavity wall of cavity 11 is provided with edge and is parallel to cavity
11 axially extending limiting slots 12, movable axis 2, which is provided with, to be movably placed in limiting slot 12 and can live along 12 extending direction of limiting slot
It moves to prevent the stopper protrusion to relatively rotate between movable axis 2 and shell component 1 22.
In this way, opposite rotation occurs between stopper protrusion 22 and 12 activity cooperation limitation shell component 1 of limiting slot and movable axis 2
Turn, in this way, inductive signal can correctly reflect the relative position between follower 21 and induction pieces 3, is carried out by inductive signal
Mobile phone shell roughness measurement or orbital docking elevation carrection etc., precision can obtain effective guarantee.
In the present embodiment, actuator 4 is pagoda that is axial axial almost the same with cavity 11 and being sheathed on movable axis 2
Spring, the position abutted against with actuator 4 on movable axis 2 are provided with the location indentations for accommodating and 4 one end of Locating driver part
23, actuator 4 is abutted against with 23 opposite side of location indentations with shell component 1.In this way, location indentations 23 can be to pagoda spring one
End is positioned, and shell component 1 is abutted with the pagoda spring other end, not only can be carried out location and installation to pagoda spring, can also be protected
Card 2 movable stabilization of movable axis is not easy to shake, and further ensures that measurement accuracy.
Follower 21 is set close to 3 one end of induction pieces on movable axis 2, the other end is provided with the measurement with ball type of contact surface
First 5.In this way, measurement head 5 can be anti-wear using universal ball end or fixed bulb.
Telescopic dirt-proof boot 6 is provided between measurement head 5 and shell component 1.In this way, can avoid dust etc. passes through movable axis
Gap between shell component 1 enters in displacement sensor, influences measurement accuracy.Nitrile rubber material can be used in dirt-proof boot 6.
Shell component 1 includes：Shell 13 and the skeleton 14 being placed in shell 13, shell 13 open up cavity 11, induction pieces 3
And the pcb board being electrically connected with induction pieces 3 is set on skeleton 14, skeleton 14 is provided with empty for 21 movable activity of follower
Between.In this way, be provided with pcb board and induction pieces 3 on skeleton 14, entire skeleton 14, pcb board and induction pieces 3 can direct conveniences
It is fitted into shell component 1.
Induction pieces 3 transmit inductive signal by cable 7, and shell 13 is provided with the perforation 131 worn for cable 7, shell 13
On be additionally provided with and 131 be connected to facilitate the gap 132 of the installations such as cable 7 and induction pieces 3, skeleton 14 with perforation.
Covering perforation 131, gap 132 are also arranged between perforation 131 and cable 7 to realize that the rubber outlet of sealing is protected
Set.
The baffle ring 133 for preventing movable axis 2 from deviating from is provided on shell 13.
It is sealed by sealing ring 8 between shell 13 and skeleton 14, Teflon material can be used in sealing ring 8.
In the present embodiment, follower 21 is magnetic part, such as：Samarium cobalt magnet, induction pieces 3 are Hall sensor.
The operation principle of upper displacement sensors approximately as：
When measurement head 5 touches measured body, movable axis 2 can be subjected to displacement in cavity 11, since cavity 11 corresponds to cavity wall
It is provided with limiting slot 12, stopper protrusion 22 is provided on movable axis 2 so that 2 meetings of movable axis are axially displaced along cavity 11
Without being rotated relative to shell component 1, the follower 21 on movable axis 2 also can therewith move and between induction pieces 3 opposite position
It sets and changes, induction pieces 3 can sense its real-time relative position between follower 21, and obtain accordingly incuding letter
Number.When measurement head 5 does not touch measured body, actuator 4 can drive movable axis 2 integrally to make resetting movement.
Embodiment two：
The present embodiment is essentially consisted in other embodiment difference：In the present embodiment, movable axis 2 corresponds to outer wall and is provided with along flat
In the axially extending limiting slot of cavity 11, cavity 11 is provided with to be movably placed in limiting slot and can live along limiting slot extending direction row
It moves to prevent the stopper protrusion to relatively rotate between movable axis 2 and shell component 1.
Other embodiment：
These embodiments can mainly be with the above-mentioned embodiment difference enumerated：
1, follower 21 is iron core, and induction pieces are coil, in this way, displacement sensor is embodied as inductance type force-displacement sensing
Device.
2, follower 21 is the first pole plate of variable capacitance, and induction pieces 3 are that the RC for the second pole plate for including variable capacitance shakes
Circuit or LC oscillating circuits are swung, in this way, can displacement sensor be embodied as capacitive displacement transducer.
Above example is only to illustrate the technical solution of the utility model, rather than is carried out to the protection domain of utility model
Limitation.Obviously, described embodiment is only the utility model section Example, rather than whole embodiments.Based on these
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the utility model scope of the claimed.Although the utility model is described in detail with reference to above-described embodiment,
Those of ordinary skill in the art can still not make creative work and respectively implement to the utility model in the absence of conflict
Feature in example is according to circumstances combined with each other, additions and deletions or makees other adjustment, to obtain different, essence without departing from this practicality newly
The other technologies scheme of the design of type, these technical solutions similarly belong to the utility model scope of the claimed.
Claims (10)
1. a kind of displacement sensor, which is characterized in that including：Shell component with cavity can hold along the axial activity of the cavity
It is placed in the cavity and carries the movable axis of follower, be set in the shell component for pair between the follower
The induction pieces that are incuded of real-time relative position, and be set between the shell component and the movable axis, for driving
The actuator that the movable axis resets, it is movable that the movable axis is limited to by the shell component in a predetermined stroke, the cavity
Corresponding cavity wall is provided with along being parallel to the axially extending limiting slot of the cavity, the movable axis be provided be movably placed in it is described
It can be along the limiting slot extending direction activity to prevent that opposite turn occurs between the movable axis and the shell component in limiting slot
Dynamic stopper protrusion is provided with alternatively, the movable axis corresponds to outer wall along being parallel to the axially extending limiting slot of the cavity, institute
It states cavity and is provided with that be movably placed in the limiting slot can be along the limiting slot extending direction activity to prevent the movable axis
The stopper protrusion to relatively rotate between the shell component.
2. displacement sensor as described in claim 1, which is characterized in that the actuator is the axial and cavity axial direction base
This pagoda spring that is consistent and being sheathed on the movable axis is arranged with the position that the actuator abuts against on the movable axis
Be useful for location indentations that are accommodating and positioning described actuator one end, the actuator with the location indentations opposite side with
The shell component abuts against.
3. displacement sensor as described in claim 1, which is characterized in that set close to described induction pieces one end on the movable axis
The follower is set, the other end is provided with the measurement head with ball type of contact surface.
4. displacement sensor as claimed in claim 3, which is characterized in that be provided between the measurement head and the shell component
Telescopic dirt-proof boot.
5. displacement sensor as described in claim 1, which is characterized in that the shell component includes：Shell and it is placed in institute
The skeleton in shell is stated, the shell opens up the cavity, and the induction pieces and the pcb board being electrically connected with the induction pieces are set
It is placed on the skeleton, the skeleton is provided with for the movable activity space of the follower.
6. displacement sensor as claimed in claim 5, which is characterized in that the induction pieces by cable transmission inductive signal,
The shell is provided with the perforation worn for the cable, is additionally provided with and be connected to the perforation with described in facilitating on the shell
The gap of cable and induction pieces installation.
7. displacement sensor as claimed in claim 6, which is characterized in that be also arranged with and cover between the perforation and the cable
The perforation, the gap are covered to realize the rubber outlet protective case of sealing.
8. displacement sensor as claimed in claim 5, which is characterized in that be provided on the shell for preventing the activity
The baffle ring of axis abjection.
9. the displacement sensor as described in any one of claim 5-8, which is characterized in that between the shell and the skeleton
It is sealed by sealing ring.
10. the displacement sensor as described in any one of claim 1-8, which is characterized in that the follower is magnetic part, institute
It is Hall sensor to state induction pieces；The follower is iron core, and the induction pieces are coil；The follower is variable capacitance
First pole plate, the induction pieces are the RC oscillating circuits or LC oscillating circuits for the second pole plate for including the variable capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820410352.8U CN208012519U (en) | 2018-03-24 | 2018-03-24 | Displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820410352.8U CN208012519U (en) | 2018-03-24 | 2018-03-24 | Displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208012519U true CN208012519U (en) | 2018-10-26 |
Family
ID=63889160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820410352.8U Active CN208012519U (en) | 2018-03-24 | 2018-03-24 | Displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208012519U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320036A (en) * | 2019-08-09 | 2019-10-11 | 东北大学秦皇岛分校 | A kind of linear bearing linearity measurer based on inductance variation |
| CN110320035A (en) * | 2019-08-09 | 2019-10-11 | 东北大学秦皇岛分校 | A kind of linear bearing linearity measurer based on pressure change |
-
2018
- 2018-03-24 CN CN201820410352.8U patent/CN208012519U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320036A (en) * | 2019-08-09 | 2019-10-11 | 东北大学秦皇岛分校 | A kind of linear bearing linearity measurer based on inductance variation |
| CN110320035A (en) * | 2019-08-09 | 2019-10-11 | 东北大学秦皇岛分校 | A kind of linear bearing linearity measurer based on pressure change |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208012519U (en) | Displacement sensor | |
| US6466200B1 (en) | Computer input device | |
| CN206862277U (en) | A kind of Novel Non-Contact Type Hall Displacement Sensor | |
| KR20110084090A (en) | An input device | |
| CN109477740A (en) | Close to touch sensor | |
| CN104142738A (en) | Touch control pen | |
| CN107421432B (en) | Non-contact Hall displacement sensor | |
| US10209095B2 (en) | Eddy current sensor | |
| CN204214395U (en) | Push-down contact linear movement pick-up | |
| CN102313003A (en) | The scope detective device | |
| JP5579952B1 (en) | Power transmission device, power supply system | |
| CN207717028U (en) | A kind of angular transducer | |
| CN101832749B (en) | Anti-error displacement transducer for Hall-type single-path signal output | |
| CN101846488A (en) | Precise displacement sensor | |
| CN103424132A (en) | Magnetic coder in three-dimensional space | |
| CN204215369U (en) | A kind of contactless rocking bar | |
| CN205909842U (en) | Rotation limiting device of rotatory instrument | |
| CN109411976A (en) | A kind of slip-ring device | |
| CN209895313U (en) | Track ball mouse capable of preventing cursor from shaking | |
| KR101234058B1 (en) | Self powered mouse | |
| CN201740503U (en) | Precise displacement sensor | |
| CN202757631U (en) | Rotating shaft type potentiometer | |
| CN218037801U (en) | Self-resetting Hall electric control handle | |
| CN213305366U (en) | Two-wire system 4-20MA current loop output non-contact magnetic-sensing potentiometer | |
| CN209485262U (en) | Miniature magnetic electrical angle sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |