CN208595891U - A kind of precision angle sensor - Google Patents
A kind of precision angle sensor Download PDFInfo
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- CN208595891U CN208595891U CN201821012924.3U CN201821012924U CN208595891U CN 208595891 U CN208595891 U CN 208595891U CN 201821012924 U CN201821012924 U CN 201821012924U CN 208595891 U CN208595891 U CN 208595891U
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- laser beam
- photodetector
- spectroscope
- reflection component
- incoming position
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Abstract
The utility model relates to a kind of precision angle sensor, the precision angle sensor includes laser beam one and laser beam two, and reflecting surface reflects the laser beam one, laser beam two；Spectroscope one divides the laser beam one of reflective surface for laser beam three and laser beam four；Spectroscope two divides the laser beam two of reflective surface for laser beam five and laser beam six；Photodetector one, for receiving the laser beam three reflected through spectroscope one and showing incoming position；Photodetector two, for receiving the laser beam four transmitted through spectroscope one and showing incoming position；Photodetector three, for receiving the laser beam five reflected through spectroscope two and showing incoming position；Photodetector four, for receiving the laser beam six transmitted through spectroscope two and showing incoming position；Processing system, the variable quantity of the laser beam incoming position for being detected according to photodetector handle to obtain the rotation angle value of testee on the reflection component.
Description
Technical field
The utility model relates to field of measuring technique, and in particular to a kind of precision angle sensor.
Background technique
Angular measurement sensor is a kind of common geometry quantity sensor, in aerospace, industrial production, machine-building and army
Thing science etc. has extensive use in many fields.Such as Patent No. 201510276409.0, a kind of entitled " continuous increasing
The Chinese patent of amount formula light arm scale-up version high-precision angle sensor " discloses a kind of angular transducer, which is suitable for
The measure of the change of the continuous increment of testee angle, measurement is reliable, and precision is high.However in contrast, the meter of the angular transducer
Calculation process slightly complicated, need when calculating and meanwhile measure laser beam before rotation with incidence angle that reflecting surface is incident to after rotation
Degree, arithmetic speed are slow.
Utility model content
The purpose of this utility model is that proposing a kind of precision angle sensor.
To achieve the goals above, the utility model the following technical schemes are provided:
A kind of precision angle sensor, comprising:
Laser beam one, laser beam two, and the laser beam one and laser beam two are incident to the incoming position of reflection component not
Together；
The reflection component, for the reflection component for fixing testee, the reflection component is rotatable and along week
To several reflectings surface are equipped with, each reflecting surface is for reflecting the laser beam one, laser beam two；
Spectroscope one, for dividing the laser beam one of the reflective surface of the reflection component for laser beam three and laser beam
Four；
Spectroscope two, for dividing the laser beam two of the reflective surface of the reflection component for laser beam five and laser beam
Six；
Photodetector one for receiving the laser beam three reflected through spectroscope one, and shows its incoming position；
Photodetector two for receiving the laser beam four transmitted through spectroscope one, and shows its incoming position；
Photodetector three for receiving the laser beam five reflected through spectroscope two, and shows its incoming position；
Photodetector four for receiving the laser beam six transmitted through spectroscope two, and shows its incoming position；
Processing system, the variable quantity and photoelectricity of three incoming position of laser beam for being detected according to photodetector one are visited
The variable quantity for four incoming position of laser beam that device two detects is surveyed, processing obtains the rotation angle of testee on the reflection component
Angle value；And/or the variable quantity and photodetector four of five incoming position of laser beam detected according to photodetector three detect
The variable quantity of six incoming position of laser beam arrived, processing obtain the rotation angle value of testee on the reflection component.
Preferably, the whole reflector shape size on the reflection component is identical.
Preferably, the reflection component is regular polygon column, and each side of the regular polygon column is described anti-
Penetrate face.
Preferably, the photodetector one is located at the two sides of spectroscope one with photodetector two, and photoelectricity is visited
It is arranged in parallel to survey device one, photodetector two and spectroscope one.Photodetector one and photodetector two are set as flat
Row reduces the size of whole equipment, and facilitates the calculating of testee rotation angle.
Preferably, the photodetector three is located at the two sides of spectroscope two with photodetector four, and photoelectricity is visited
It is arranged in parallel to survey device three, photodetector four and spectroscope two.Photodetector three and photodetector four are set as flat
Row reduces the size of whole equipment, and facilitates the calculating of testee rotation angle.
Preferably, the laser beam one, laser beam two obtain the laser by laser one and the transmitting of laser two respectively
Beam.
Compared with prior art, using a kind of precision angle sensor provided by the utility model, it has the advantage that:
When using precision angle sensor measurement in this programme, it is only necessary to know that laser beam is incident to the initial of reflecting surface
Laser beam is not related in the incidence angle of reflecting surface after incidence angle, with rotation, it is thus eliminated that laser beam incidence point with
Reflection component rotates and the influence of variation, simplifies calculating process, arithmetic speed is fast.
By the way that reflection component to be mounted on testee, laser beam one, laser beam two are incident on the difference of reflection component
Corresponding spectroscope one or spectroscope two are reflected into after reflecting surface respectively, reflection laser beam is reflected or be transmitted to photoelectricity by spectroscope
Detector one, photodetector two, photodetector three, on photodetector four；Testee rotate when reflection component therewith
It rotates together, photodetection is located at by the laser beam of different reflective surfaces on the reflection component in measurement rotary course
The variation of device one, photodetector two, photodetector three, reflection position point on photodetector four, processing system can
The changing value of testee rotation angle, the sensor are calculated according to the variable quantity of laser beam incoming position on photodetector
Structure is simple, at low cost suitable for the measurement of testee rotation angle, calculates easy.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the precision angle sensor provided in the utility model embodiment.
Fig. 2 is a kind of calculating isoboles of the precision angle sensor provided in the utility model embodiment.
Description of symbols in figure
Laser 1, laser 2, laser beam 1, laser beam 24, laser beam 3 31, laser beam 4 32, laser beam 5 41,
Laser beam 6 42, reflection component 5, reflecting surface 6, spectroscope 1, spectroscope 28, photodetector 1, photodetector 10,
Photodetector 11, photodetector 12.
Specific embodiment
Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations
Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model
Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
Referring to Fig. 1, the present embodiment schematically discloses a kind of precision angle sensor, including laser 1, swash
Light device 22, laser beam 1, laser beam 24, laser beam 3 31, laser beam 4 32, laser beam 5 41, laser beam 6 42, reflection
Component 5, the reflection component 5 include several reflectings surface 6, spectroscope 1, spectroscope 28, photodetector 1, photoelectricity
Detector 2 10, photodetector 3 11, photodetector 4 12.The laser beam 1 is incident to reflecting part with laser beam 22
The incoming position of part 5 is different.
In the utility model precision angle sensor:
Laser 1 launches laser beam 1, and laser beam 1 is incident to several reflectings surface 6 of reflection component 5, through anti-
It penetrates after face 6 is reflected and is incident to the spectroscope 1；One 3 points of laser beam are laser beam 3 31 and laser by the spectroscope 1
Beam 4 32, the photodetector 1 receives the laser beam 3 31 reflected through spectroscope 1, and measures its incoming position, described
Photodetector 2 10 receives the laser beam 4 32 transmitted through spectroscope 1, and measures its incoming position.
Meanwhile laser 22 launches laser beam 24, laser beam 24 is incident to several reflectings surface of reflection component 5
6, the spectroscope 28 is incident to after the reflection of reflecting surface 6；The spectroscope 28 by 24 points of laser beam for laser beam 5 41 with
Laser beam 6 42, the photodetector 3 11 receive the laser beam 5 41 through spectroscope reflection 28, and measure its incident position
It sets, the photodetector 4 12 receives the laser beam 6 42 transmitted through spectroscope 28, and measures its incoming position.
Processing system, the variable quantity and light of 3 31 incoming position of laser beam for being detected according to photodetector 1
The variable quantity for 4 32 incoming position of laser beam that electric explorer 2 10 detects, processing obtain testee on the reflection component
Rotation angle value；And/or the variable quantity and photoelectricity of 5 41 incoming position of laser beam detected according to photodetector 3 11
The variable quantity for 6 42 incoming position of laser beam that detector 4 12 detects handles to obtain testee on the reflection component
Rotation angle value.
As shown in Figure 1, reflection component, reflecting surface, the laser beam before rotating operation are indicated by the solid line, it is anti-after rotating operation
Component, reflecting surface, laser beam is penetrated to be represented by dashed line, the transmission path of laser beam and reflection component, reflecting surface motion path such as
Under:
Before rotating operation, laser 1 launches laser beam 1, and laser beam 1 is incident to several of reflection component 5
Reflecting surface 6 is incident to the spectroscope 1 after the reflection of reflecting surface 6；One 3 points of laser beam are laser beam by the spectroscope 1
3 31 laser beams 3 31 reflected with laser beam 4 32, the reception of photodetector 1 through spectroscope 1, and measure it and enter
Position is penetrated, the photodetector 2 10 receives the laser beam 4 32 transmitted through spectroscope 1, and measures its incoming position.
It is denoted as the first incoming position herein at this time.
Meanwhile laser 22 launches laser beam 24, laser beam 24 is incident to several reflectings surface of reflection component 5
6, the spectroscope 28 is incident to after the reflection of reflecting surface 6；The spectroscope 28 by 24 points of laser beam for laser beam 5 41 with
Laser beam 6 42, the photodetector 3 11 receive the laser beam 5 41 reflected through spectroscope 28, and measure its incident position
It sets, the photodetector 4 12 receives the laser beam 6 42 transmitted through spectroscope 28, and measures its incoming position.At this time
It is denoted as the second incoming position herein.
After rotating operation, laser 1 launches laser beam 1, and laser beam 1 is incident to several of reflection component 5
Reflecting surface 6 is incident to the spectroscope 1 after the reflection of reflecting surface 6；One 3 points of laser beam are laser beam by the spectroscope 1
3 31 laser beams 3 31 reflected with laser beam 4 32, the reception of photodetector 1 through spectroscope 1, and measure it and enter
Position is penetrated, the photodetector 2 10 receives the laser beam 4 32 transmitted through spectroscope 1, and measures its incoming position.
It is denoted as third incoming position at this time.
Meanwhile laser 22 launches laser beam 24, laser beam 24 is incident to several reflectings surface of reflection component 5
6, the spectroscope 28 is incident to after the reflection of reflecting surface 6；The spectroscope 28 by 24 points of laser beam for laser beam 5 41 with
Laser beam 6 42, the photodetector 3 11 receive the laser beam 5 41 reflected through spectroscope 28, and measure its incident position
It sets, the photodetector 4 12 receives the laser beam 6 42 transmitted through spectroscope 28, and measures its incoming position.At this time
It is denoted as the 4th incoming position herein.
According to the variable quantity of the first incoming position and third incoming position, processing obtains testee on the reflection component
Rotation angle value；And/or it handles to obtain the rotation of testee according to the variable quantity of the second incoming position and the 4th incoming position
Corner angle value.
As a kind of preferably embodiment, the whole reflector shape size on the reflection component is identical.Hold
Intelligible, design herein is the calculating of testee rotation angle for convenience, do not limit herein the shape of reflecting surface with
Size.
As a kind of preferably embodiment, the reflection component is regular polygon column, the regular polygon column
Each side is the reflecting surface.
As a kind of preferably embodiment, the photodetector one is located at spectroscope one with photodetector two
Two sides, and photodetector one, photodetector two and spectroscope one are arranged in parallel.It is readily comprehensible, setting herein
Meter is the size in order to reduce whole equipment, and facilitates the calculating of testee rotation angle, can be connect in guarantee photodetector
In the case where receiving laser beam, the angle of photodetector is not limited.
As a kind of preferably embodiment, the photodetector three is located at spectroscope two with photodetector four
Two sides, and photodetector three, photodetector four and spectroscope two are arranged in parallel.It is readily comprehensible, setting herein
Meter is the size in order to reduce whole equipment, and facilitates the calculating of testee rotation angle, can be connect in guarantee photodetector
In the case where receiving laser beam, the angle of photodetector is not limited.
As a kind of preferably embodiment, the laser beam one, laser beam two pass through laser one and laser respectively
Two transmittings obtain the laser beam.
Based on above-mentioned precision angle sensor, measurement method the following steps are included:
Step 1: the reflection component is fixed on testee；
Step 2: adjustment laser beam one, laser beam two, reflection component, spectroscope one, spectroscope two, photodetector one,
The positional relationship of photodetector two, photodetector three, photodetector four, so that laser beam one, laser beam two pass through respectively
It can be divided respectively by the spectroscope one with spectroscope two for laser beam three, laser beam after the reflective surface of the reflection component
Four, laser beam five, laser beam six, laser beam three are detected by photodetector one, and laser beam four is detected by photodetector two
It arrives, laser beam five is detected by photodetector three, and laser beam six is detected by photodetector four, the photodetector
One, photodetector two, photodetector three, photodetector four and processing system communicate to connect；
Step 3: transmitting laser beam one, laser beam two, the photodetector one detect the laser that spectroscope one reflects
The initial position of beam three, photodetector two detect the initial position for the laser beam four that spectroscope one transmits；And/or photoelectricity
Detector three detects that the initial position for the laser beam five that spectroscope two reflects, photodetector four detect that spectroscope two transmits
Laser beam six initial position；
Step 4: testee rotation, in rotary course, the photodetector one, photodetector two, photoelectricity are visited
Survey device three, photodetector four detects that the laser beam three, laser beam four, laser beam five, laser beam six are respectively being visited respectively
The variation for surveying incoming position on device stops until testee rotates；
Step 5: the variable quantity and photoelectricity for three incoming position of laser beam that processing system is detected according to photodetector one
The variable quantity for four incoming position of laser beam that detector two detects, processing obtain the rotation of testee on the reflection component
Angle value；And/or the variable quantity and photodetector four of five incoming position of laser beam detected according to photodetector three are visited
The variable quantity of six incoming position of laser beam measured, processing obtain the rotation angle value of testee on the reflection component.
In conjunction with Fig. 2, the calculation formula of the measurement method of above-mentioned precision angle sensor is as follows:
Y2-Y1=(L2-L1) × (tan (α)-tan (α -2 θ))
Wherein, Y1 is the variable quantity on photodetector 2 10 before laser beam rotation with postrotational incoming position, and Y2 is
Variable quantity in photodetection 1 before laser beam rotation with postrotational incoming position, L1 are photodetector 2 10 and light splitting
The distance of mirror 1, L2 are photodetector 1 at a distance from spectroscope 1, since L1, L2, Y1, Y2 are known quantity, acquire Y
With the value of L.And α is the original incident angle that the laser beam that laser is launched is incident to the reflecting surface of reflection component, in operation
During, ɑ immobilizes, and is known quantity.Therefore it can use the rotation angle, θ that above-mentioned formula acquires testee.With back
Angular transducer described in scape technology is compared, this group of calculation formula does not need after measuring rotation, the laser that laser is launched
Beam is incident to the incident angle of the reflecting surface of reflection component, eliminate laser beam enter radio with by reflection component rotate and change
Influence.
Above description is only a specific implementation of the present invention, the protection scope of the utility model is not limited to
This, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation or
Replacement, should be covered within the scope of the utility model.
Claims (6)
1. a kind of precision angle sensor characterized by comprising
Laser beam one, laser beam two, and the laser beam one is different from the incoming position that laser beam two is incident to reflection component；
The reflection component, for the reflection component for fixing testee, the reflection component is rotatable and circumferentially sets
There are several reflectings surface, each reflecting surface is for reflecting the laser beam one, laser beam two；
Spectroscope one, for dividing the laser beam one of the reflective surface of the reflection component for laser beam three and laser beam four；
Spectroscope two, for dividing the laser beam two of the reflective surface of the reflection component for laser beam five and laser beam six；
Photodetector one for receiving the laser beam three reflected through spectroscope one, and shows its incoming position；
Photodetector two for receiving the laser beam four transmitted through spectroscope one, and shows its incoming position；
Photodetector three for receiving the laser beam five reflected through spectroscope two, and shows its incoming position；
Photodetector four for receiving the laser beam six transmitted through spectroscope two, and shows its incoming position；
Processing system, the variable quantity and photodetector of three incoming position of laser beam for being detected according to photodetector one
The variable quantity of two four incoming positions of laser beam detected, processing obtain the rotation angle of testee on the reflection component
Value；And/or the variable quantity and photodetector four of five incoming position of laser beam detected according to photodetector three detect
Six incoming position of laser beam variable quantity, processing obtain the rotation angle value of testee on the reflection component.
2. precision angle sensor according to claim 1, which is characterized in that the whole on the reflection component is described anti-
It is identical to penetrate face shape size.
3. precision angle sensor according to claim 2, which is characterized in that the reflection component is vertical for regular polygon
Column, each side of the regular polygon column are the reflecting surface.
4. precision angle sensor according to claim 1, which is characterized in that the photodetector one and photodetection
Device two is located at the two sides of spectroscope one, and photodetector one, photodetector two and spectroscope one are arranged in parallel.
5. precision angle sensor according to claim 1, which is characterized in that the photodetector three and photodetection
Device four is located at the two sides of spectroscope two, and photodetector three, photodetector four and spectroscope two are arranged in parallel.
6. -5 any precision angle sensor according to claim 1, which is characterized in that the laser beam one, laser beam
Two obtain the laser beam by laser one and the transmitting of laser two respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821012924.3U CN208595891U (en) | 2018-06-28 | 2018-06-28 | A kind of precision angle sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821012924.3U CN208595891U (en) | 2018-06-28 | 2018-06-28 | A kind of precision angle sensor |
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| CN208595891U true CN208595891U (en) | 2019-03-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592827A (en) * | 2018-06-28 | 2018-09-28 | 北方民族大学 | Precision angle sensor and its measurement method |
| CN110763162A (en) * | 2019-10-17 | 2020-02-07 | 四川大学 | Ultra-precise line laser corner sensing method |
-
2018
- 2018-06-28 CN CN201821012924.3U patent/CN208595891U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592827A (en) * | 2018-06-28 | 2018-09-28 | 北方民族大学 | Precision angle sensor and its measurement method |
| CN108592827B (en) * | 2018-06-28 | 2024-06-18 | 福湫科技(深圳)有限公司 | Precise angle measurement sensor and measurement method thereof |
| CN110763162A (en) * | 2019-10-17 | 2020-02-07 | 四川大学 | Ultra-precise line laser corner sensing method |
| CN110763162B (en) * | 2019-10-17 | 2024-04-02 | 四川大学 | Ultra-precise line laser corner sensing method |
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