CN209673043U - A kind of mounting distance can automatic adjusument laser displacement sensor - Google Patents
A kind of mounting distance can automatic adjusument laser displacement sensor Download PDFInfo
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- CN209673043U CN209673043U CN201821833714.0U CN201821833714U CN209673043U CN 209673043 U CN209673043 U CN 209673043U CN 201821833714 U CN201821833714 U CN 201821833714U CN 209673043 U CN209673043 U CN 209673043U
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- laser displacement
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Abstract
The utility model patent is related to a kind of acquisition of laser displacement data and light path regulating device, especially a kind of laser displacement sensor.By laser displacement gauge, light path regulating device-reflection microscope group is constituted.Which solves use laser displacement timing in test site, it is necessary to which displacement meter is placed on the problem of could effectively acquiring displacement apart from textured surface particular range.The device is easy to operate, does not influence the measuring accuracy of laser displacement gauge, debugging and installment work before the test mitigated significantly, can be used for most of test site for needing to carry out displacement measurement.
Description
Technical field:
The invention patent relates to displacement sensor detection field more particularly to a kind of acquisition of laser displacement data and optical paths
Regulating device.
Background technique:
Sensor suitable for displacement measurement is very various, but the most accurate with the measurement of laser displacement gauge at present,
It is particularly suitable for high-frequency vibration and non-cpntact measurement.But laser displacement is different from other displacement meter features in respect of one, is exactly to swash
Optical sensor has one section of mounting distance, and when the distance of test surfaces range sensor is less than mounting distance, sensor is not measure
Change in displacement, we term it " invalid distances ", as shown in Figure 2.With the IL-100 model of Japanese Keyemce company production
For laser displacement gauge, its test scope is the change in displacement at 75mm~130mm of range sensor laser emission port,
That is sensor does not react if an object has displacement in 0~75mm of range sensor, the displacement of object is big
It is not also reacted in 130mm, validity test range 21 and invalid test scope 22 as shown in Figure 2.It can be seen that conventional laser
The invalid measuring distance of displacement meter carrys out inconvenience to calibration tape, specific as follows: (1) test space must guarantee that receiving can simultaneously
The deformation and invalid distance of energy.It, will be so that test be lived if laser displacement gauge distance test face is excessively close in a narrow space
It is dynamic to be normally carried out.(2) it installs and debugs cumbersome.Testing crew is necessarily required in advance according to test surfaces position, and
Possible deformation direction determines the installation site of laser displacement gauge, and final installation needs while meeting space and beam angle
Requirement, very test tester patience and carefulness.(3) laser head and deformation plance are opposite and right, if textured surface is sent out
Raw brittle break, the material of avalanche are likely to hurt the precision components such as fragile laser head.
Summary of the invention
Goal of the invention: the invention patent is designed to provide a kind of Returned optical path for overcoming disadvantages mentioned above and providing
The laser displacement gauge of transmission.The device overcomes has invalid measuring distance, installation effectiveness low using laser displacement gauge at present, easily
The disadvantages of damage, has very high practicability.
Technical solution: the task that existing above-mentioned target proposes, the present apparatus turn back and adjust dress by laser displacement gauge and multi-pass
Set composition.It is characterized in that, the laser beam of the laser displacement gauge transmitting is mapped to multi-pass system, by the reflection of light path system
Directive testee surface afterwards, optical path distance of turning back can be adjusted by regulating device, form different measuring distances
Meeting different test environment, minimum measuring distance can allow invalid measuring distance to be equal to multi-pass and turn back path distance,
I.e. laser beam, which leaves multi-pass device of turning back, can start the measurement being displaced.
Distinguishing feature:
1) the multi-pass system of turning back may be implemented to completely eliminate invalid measuring distance, in the survey for not influencing laser displacement gauge
In the case where trying range, measuring distance is further furthered, the displacement measurement under narrow installation space may be implemented.
2) multi-pass system of turning back can be eliminated with regulating device, can also retain one section of invalid distance, in this way can be
It is realized when installation and fixes present apparatus system, then in regulating device, cooperate the variation of invalid distance, so that test scope is fallen in
Test surfaces attachment, improves installation effectiveness, has saved the set-up time.
3) test surfaces are contacted with sensor laser beam emitting head by light path system, effectively protect the essence of sensor
Close components.
Detailed description of the invention
It is as shown in Figure 1 the structural schematic diagram of the invention patent device.
It is illustrated in figure 2 the test schematic diagram of common laser displacement sensor, the defect having is that there are longer nothings
Imitate distance 23.
It is illustrated in figure 3 test of the invention patent device before test effect schematic diagram-adjusting prism 1 and prism 2
Signal.
It is illustrated in figure 4 test of the invention patent device after test effect schematic diagram-adjusting prism 1 and prism 2
Signal.
In figure: prism 1, prism 2, prism 3, laser displacement gauge main body 4, laser emission port 5, testee 20, transmitting
Laser beam 23, the laser beam 6 of transmitting, the laser beam 24 of reflection, validity test range 21, invalid test scope 22.
Specific embodiment
As shown in figure 3, prism 1, prism 2, prism 3 are carried out by by 90 degree of the progress of common laser displacement meter of overturning
Optical path combination, can easily realize the displacement measurement in test scope 21.Its laser beam is projected by laser emission port 5,
Prism 2 is reflected by prism 1 and is re-reflected into prism 3, finally projects the surface of testee 20, is sequentially passed through after reflection
Prism 3, prism 2 are crossed, prism 1 receives simultaneously output displacement reacting dose by the receiving terminal of laser displacement gauge 4 again.
As shown in figure 4, when testee 20 is close apart from 4 all too of laser displacement gauge, adjustable prism 1 and prism 2,
So that prism 1 and prism 2 are elongated at a distance from prism 3, distance 22 invalid so is then further compressed, effective range 21
It is then furthered, reaches test purpose.Similarly, if testee 20 is too far apart from laser displacement gauge 4, can with inverse operation,
Realize the purpose for zooming out validity test range 21.
Claims (1)
1. a kind of mounting distance can automatic adjusument laser displacement sensor, it is characterised in that: including laser displacement gauge (4),
First prism (1), the second prism (2), third prism (3)；First prism (1) and the second prism (2) are respectively positioned on laser displacement gauge
(4) side of laser is issued, and the second prism (2) is located at the top of the first prism (1), third prism (3) is located at the second prism
(2) turn back laser side and between laser displacement gauge (4) and the second prism (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833714.0U CN209673043U (en) | 2018-11-06 | 2018-11-06 | A kind of mounting distance can automatic adjusument laser displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833714.0U CN209673043U (en) | 2018-11-06 | 2018-11-06 | A kind of mounting distance can automatic adjusument laser displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209673043U true CN209673043U (en) | 2019-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821833714.0U Expired - Fee Related CN209673043U (en) | 2018-11-06 | 2018-11-06 | A kind of mounting distance can automatic adjusument laser displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209673043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186470A (en) * | 2018-11-06 | 2019-01-11 | 南京林业大学 | A kind of mounting distance can automatic adjusument laser displacement sensor |
-
2018
- 2018-11-06 CN CN201821833714.0U patent/CN209673043U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186470A (en) * | 2018-11-06 | 2019-01-11 | 南京林业大学 | A kind of mounting distance can automatic adjusument laser displacement sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191122 Termination date: 20201106 |