CN206440821U - Quasi- solid-state single line laser radar - Google Patents
Quasi- solid-state single line laser radar Download PDFInfo
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- CN206440821U CN206440821U CN201621205149.4U CN201621205149U CN206440821U CN 206440821 U CN206440821 U CN 206440821U CN 201621205149 U CN201621205149 U CN 201621205149U CN 206440821 U CN206440821 U CN 206440821U
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- laser radar
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- coil
- speculum
- magnet
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Abstract
The utility model provides a kind of quasi- solid-state single line laser radar, and the laser radar includes laser, detector；Galvanometer, the galvanometer includes：Base；Magnet, magnet is separately positioned on the relative both sides of the base, the opposite polarity of the relative magnet in mutually isolated position；The two ends incoming transport electricity of coil；Speculum connects the coil；The speculum by the reflected light that reflexes on detection thing, detection thing of the detection light that sends of laser enter the detector after the speculum；One end of torque arm is fixed on the base by fixture, and the other end connects the coil；The coil under exchange electric drive produces torque in the magnetic field that the magnet is formed, and drives the speculum to be twisted by axis of the torque arm；Fixture.The utility model has the advantages that simple in construction, inexpensive.
Description
Technical field
The utility model is related to photoelectric analysis, more particularly to quasi- solid-state single line laser radar.
Background technology
Laser radar is a kind of conventional distance measuring sensor, due to disturbing small etc. excellent with high resolution, by environmental factor
Point, it is widely used in fields such as industrial circle, intelligent robot, automobiles.Laser radar be divided into single line laser radar, it is multi-thread swash
Optical radar and face three kinds of radar of battle array, wherein single line laser radar is most widely used.Single line laser radar basic functional principle
As shown in Figure 1：Detecting object is exposed to after reflected (dynamic) the mirror reflection of laser of generating laser outgoing, wherein, reflect (dynamic)
Mirror is driven by motor to be rotated at a high speed along certain limit, therefore, emergent light quickly scanning, ranging in the range of certain angle, by visiting
The light for surveying object reflection is reflected after the reflection of (dynamic) mirror, is received by laser pickoff (for example, array APD).
(dynamic) mirror is reflected in traditional single line laser radar and uses laser galvanometer, such as high speed Galvano mirrors are revolved using high speed
The motor turned drives speculum rotation.Mainly deficiency is：
Traditional laser galvanometer size is big, and cost is high, is unfavorable for laser radar compact conformation, miniaturization is realized, moreover, electric
Machine full speed running hours driving power is high.
Utility model content
To solve the deficiency in above-mentioned prior art, the utility model provide it is a kind of without motor, compact conformation,
The quasi- solid-state single line laser radar of low cost.
The purpose of this utility model is achieved through the following technical solutions：
A kind of quasi- solid-state single line laser radar, the laser radar includes laser, detector；The laser radar enters one
Step includes：
Galvanometer, the galvanometer includes：
Base；
Magnet, the magnet is separately positioned on the relative both sides of the base, the relative magnet in mutually isolated position
Opposite polarity；
Coil, the two ends incoming transport electricity of the coil；
Speculum, the speculum connects the coil；The detection light that laser is sent is reflexed to spy by the speculum
The reflected light surveyed on thing, detection thing enters the detector after the speculum；
Torque arm, one end of the torque arm is fixed on the base by fixture, and the other end connects the coil；
The coil under exchange electric drive produces torque in the magnetic field that the magnet is formed, and drives the speculum with the torsion
Bar twists for axis；
Fixture.
According to above-mentioned laser radar, alternatively, the galvanometer further comprises：
Supporting part, the supporting part is arranged on the base, and higher than the plane of the base, the fixture is by institute
The one end for stating torque arm is fixed on the supporting part.
According to above-mentioned laser radar, it is preferable that under free state, between the central axis of the coil and the magnet
The angle of line is more than zero.
According to above-mentioned laser radar, alternatively, on the base there is the relative groove in position, the magnet is arranged on
In the groove.
According to above-mentioned laser radar, alternatively, one end of the torque arm is rotatably mounted on the base.
According to above-mentioned laser radar, it is preferable that the torque arm is two, and one end of two torque arms is separately fixed at
Base, the other end connects the relative both sides of the coil respectively.
According to above-mentioned laser radar, alternatively, the galvanometer further comprises：
Support member, the speculum and coil connect the support member, and one end of the torque arm is fixed on support member.
According to above-mentioned laser radar, it is preferable that the support member, torque arm are integrally formed.
According to above-mentioned laser radar, it is preferable that one end of the torque arm is " T " shape, institute is fixed on by fixture
State on base.
Compared with prior art, the utility model have the advantage that for：
Class MEMS galvanometers of the present utility model are without using motor, and full speed running hours are low in energy consumption；
Galvanometer size is small, lightweight, makes laser radar compact conformation, realizes miniaturization；
Mirror structures are simple, it is easy to process, and significantly reduce the cost of single line laser radar；
Effective minute surface size of speculum is Centimeter Level, it is ensured that the reflection of the weaker diverging light returned by detecting object,
And then ensure that the detection sensitivity of laser radar.
Brief description of the drawings
Referring to the drawings, disclosure of the present utility model will be easier to understand.Skilled addressee readily understands that
It is：These accompanying drawings are used only for illustrating the technical solution of the utility model, and are not intended to protection of the present utility model
Scope is construed as limiting.In figure：
Fig. 1 is the structure diagram of the class MEMS galvanometers according to the utility model embodiment 1；
Fig. 2 is another structure diagram of the class MEMS galvanometers according to the utility model embodiment 1.
Embodiment
Fig. 1-2 and following description describe optional embodiment of the present utility model how to instruct those skilled in the art
Implement and reproduce the utility model.In order to instruct technical solutions of the utility model, simplify or eliminate some conventional aspects.This
Art personnel should be appreciated that modification or replacement from these embodiments will be in the range of the utility model.This area
Technical staff should be appreciated that following characteristics can combine to form multiple modifications of the present utility model in a variety of ways.Thus, originally
Utility model is not limited to following optional embodiments, and is only limited by claim and their equivalent.
Embodiment 1：
A kind of quasi- solid-state single line laser radar of the utility model embodiment, the laser radar includes：
Laser, detector and analysis module, these are all the state of the art, be will not be repeated here；
Class MEMS galvanometers, Fig. 1-2 schematically illustrates the structure diagram of the class MEMS galvanometers of the utility model embodiment,
As shown in Figure 1-2, the galvanometer includes：
Base 11, such as aluminum base；
Supporting part 21, the supporting part is arranged on the relative both sides of the base, and higher than the plane of the base；
Magnet, such as permanent magnet, the magnet are separately positioned in the groove of the opposite sides of the base, mutually isolated
The opposite polarity of the relative magnet in position；The trend of the groove is vertical with the trend of the supporting part；
Support member 32, such as support ring；
Coil 33, the coil surrounds tubular structure, is fixed in the support ring, the two ends incoming transport electricity of coil；
Speculum 31, the speculum is fixed in the support ring；The detection light that the speculum sends laser
The reflected light reflexed on detection thing, detection thing enters the detector after the speculum；
Torque arm 41, one end 42 of the torque arm is fixed on the base by fixture, and other end connection is described
Coil；The coil under exchange electric drive produces torque in the magnetic field that the magnet is formed, and drives the speculum with institute
State torque arm to twist for axis, and base will not be touched；
Fixture 61, such as nut.
The course of work of the above-mentioned laser radar of the utility model embodiment, comprises the following steps：
Laser sends detection light；
Detection light is by the vibration mirror reflected, reflected light directive detectable substance；
The coil under exchange electric drive produces torque in the magnetic field that the magnet is formed, the drive speculum with
The torque arm twists for axis；Reflected light directive different directions of the detection light on the speculum；
Reflected light of the detection light in detectable substance reflects into detector by the speculum.
Embodiment 2：
The quasi- solid-state single line laser radar of the utility model embodiment, as different from Example 1：
One end of torque arm is pressed on supporting part using tabletting, and tabletting is fixed on supporting part by fixture.
One end of the torque arm is matched in cylinder, the shape of tabletting with the cylindrical surface of the torque arm so that the torsion
Bar is rotatably mounted on supporting part.
Embodiment 3：
According to the application examples of the laser radar of the utility model embodiment 1.
In the present embodiment, as shown in figure 1, torque arm 41 is two, one end of two torque arms is separately fixed at support
In portion 21, the other end connects the relative both sides of the support ring respectively；Support ring, torque arm using intensity height, good mechanical property,
The material of good toughness, such as titanium alloy, carbon fiber；One end 42 that the torque arm is suitable to be fixed on the supporting part is " T " shape,
Having in " T " shape structure has the screwed hole matched with the through hole on through hole, supporting part；Fixture uses nut, by torque arm
One end be fixed on supporting part；The support ring and connected two torque arms are integrally formed；Under free state, coil
The angle (or plane residing for base) of the central axis of (tubular structure surrounded) and the line at the center of two permanent magnets is big
In zero, such as 90 degree；The trend of groove suitable for setting permanent magnet is vertical with the trend of supporting part；Effective minute surface size of speculum
For Centimeter Level.
Claims (9)
1. a kind of quasi- solid-state single line laser radar, the laser radar includes laser, detector；It is characterized in that：It is described to swash
Optical radar further comprises：
Galvanometer, the galvanometer includes：
Base；
Magnet, the magnet is separately positioned on the relative both sides of the base, the pole of the relative magnet in mutually isolated position
Property is opposite；
Coil, the two ends incoming transport electricity of the coil；
Speculum, the speculum connects the coil；The detection light that laser is sent is reflexed to detection thing by the speculum,
Detect the reflected light on thing and enter the detector after the speculum；
Torque arm, one end of the torque arm is fixed on the base by fixture, and the other end connects the coil；Exchange
The coil under electric drive produces torque in the magnetic field that the magnet is formed, drive the speculum using the torque arm as
Axis is twisted；
Fixture.
2. laser radar according to claim 1, it is characterised in that：The galvanometer further comprises：
Supporting part, the supporting part is arranged on the base, and higher than the plane of the base, the fixture is turned round described
One end of power bar is fixed on the supporting part.
3. laser radar according to claim 1, it is characterised in that：Under free state, the central axis of the coil with
The angle of line between the magnet is more than zero.
4. laser radar according to claim 1, it is characterised in that：There is the relative groove in position, institute on the base
Magnet is stated to be arranged in the groove.
5. laser radar according to claim 1, it is characterised in that：One end of the torque arm is rotatably mounted to institute
State on base.
6. laser radar according to claim 1, it is characterised in that：The torque arm is two, the one of two torque arms
End is separately fixed at base, and the other end connects the relative both sides of the coil respectively.
7. laser radar according to claim 1, it is characterised in that：The galvanometer further comprises：
Support member, the speculum and coil connect the support member, and one end of the torque arm is fixed on support member.
8. laser radar according to claim 1, it is characterised in that：The support member, torque arm are integrally formed.
9. laser radar according to claim 1, it is characterised in that：One end of the torque arm is " T " shape, passes through fixation
Part is fixed on the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621205149.4U CN206440821U (en) | 2016-11-08 | 2016-11-08 | Quasi- solid-state single line laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621205149.4U CN206440821U (en) | 2016-11-08 | 2016-11-08 | Quasi- solid-state single line laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206440821U true CN206440821U (en) | 2017-08-25 |
Family
ID=59644813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621205149.4U Withdrawn - After Issue CN206440821U (en) | 2016-11-08 | 2016-11-08 | Quasi- solid-state single line laser radar |
Country Status (1)
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| CN (1) | CN206440821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707289A (en) * | 2016-11-08 | 2017-05-24 | 上海禾赛光电科技有限公司 | Quasi-solid-state single line laser radar based on MEMS-like galvanometer, and operating method thereof |
| CN109143124A (en) * | 2018-08-01 | 2019-01-04 | 歌尔股份有限公司 | Magnet polarities detection method, equipment, system and storage medium |
-
2016
- 2016-11-08 CN CN201621205149.4U patent/CN206440821U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707289A (en) * | 2016-11-08 | 2017-05-24 | 上海禾赛光电科技有限公司 | Quasi-solid-state single line laser radar based on MEMS-like galvanometer, and operating method thereof |
| CN106707289B (en) * | 2016-11-08 | 2023-08-29 | 上海禾赛科技有限公司 | Quasi-solid single-line laser radar based on MEMS-like galvanometer and working method thereof |
| CN109143124A (en) * | 2018-08-01 | 2019-01-04 | 歌尔股份有限公司 | Magnet polarities detection method, equipment, system and storage medium |
| CN109143124B (en) * | 2018-08-01 | 2020-11-17 | 歌尔光学科技有限公司 | Magnet polarity detection method, device, system and storage medium |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Rui Inventor after: Xia Pingjie Inventor after: Sun Wenting Inventor after: Xiang Shaoqing Inventor after: Li Yifan Inventor before: Wang Rui Inventor before: Xia Pingjie Inventor before: Sun Wenting |
|
| CB03 | Change of inventor or designer information | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170825 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170825 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |