CN218179972U - Double-reverse optical path difference detection device - Google Patents
Double-reverse optical path difference detection device Download PDFInfo
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- CN218179972U CN218179972U CN202221979039.9U CN202221979039U CN218179972U CN 218179972 U CN218179972 U CN 218179972U CN 202221979039 U CN202221979039 U CN 202221979039U CN 218179972 U CN218179972 U CN 218179972U
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- seat
- guide rail
- reverse
- bottom plate
- installation bottom
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Abstract
The utility model discloses a double-reverse optical path difference detection device, which comprises an installation bottom plate, wherein a linear guide rail is installed on the installation bottom plate, a guide rail seat is installed on the linear guide rail, and a forward angle cone lens and a reverse angle cone lens are installed on the guide rail seat; a forward collimator seat and a reverse collimator seat corresponding to the forward pyramid mirror and the reverse pyramid mirror are arranged at two ends of the mounting base plate; a closed-loop servo motor is further installed at one end of the installation bottom plate, and a lead screw is in transmission connection with the closed-loop servo motor; the lead screw penetrates through the guide rail seat through a lead screw nut to be connected with the sensor seat, the sensor seat is fixed on the installation bottom plate, and a sensor is installed on the sensor seat. The utility model discloses a go back and forth synchronous mechanism and go on, also be the process that the light path returned simultaneously at the propulsive in-process of light path, can reach the light path difference that comes and goes unanimously like this, promoted the poor precision of light path that comes and goes greatly.
Description
Technical Field
The utility model relates to an optical path delay line technical field specifically is a poor detection device of two reverse optical path.
Background
In the market, most of conventional optical path delay lines are of a single-optical path or homodromous multi-optical path structure, and the optical path difference detection can only be in a unidirectional mode. For some requirements that the optical path difference in the two directions of round trip needs to be monitored simultaneously, two sets of delay lines can be adopted at the same time to access signals with opposite round trips. Because the two delay lines are respectively carried out, the precision of the optical path difference is influenced to a certain extent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a poor detection device of two reverse light journey goes on through the mechanism that comes and goes synchronous, also is the process that the light path returned simultaneously at the propulsive in-process of light path, can reach the unanimity with the light journey difference that comes and goes like this, has promoted the poor precision of light journey that comes and goes greatly to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a double-reverse optical path difference detection device comprises an installation bottom plate, wherein a linear guide rail is installed on the installation bottom plate, a guide rail seat is installed on the linear guide rail, and a forward angle cone mirror and a reverse angle cone mirror are installed on the guide rail seat; a forward collimator seat and a reverse collimator seat which correspond to the forward pyramid mirror and the reverse pyramid mirror are arranged at the two ends of the mounting base plate; a closed-loop servo motor is further installed at one end of the installation bottom plate, and a lead screw is in transmission connection with the closed-loop servo motor; the lead screw penetrates through the guide rail seat through a lead screw nut to be connected with the sensor seat, the sensor seat is fixed on the installation bottom plate, and a sensor is installed on the sensor seat.
Preferably, the closed-loop servo motor is fixed on the installation bottom plate through a motor base.
Preferably, the guide rail seat is in threaded connection with the screw rod through a screw rod nut.
Preferably, the forward conical lens and the forward collimator base are correspondingly distributed on one side of the mounting base plate, and the reverse conical lens and the reverse collimator base are correspondingly distributed on the other side of the mounting base plate.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the double-reverse optical path difference detection device is carried out by a mechanism which is formed by matching a closed-loop servo motor with a lead screw, a guide rail seat, a lead screw nut and a linear guide rail and is synchronous in a reciprocating way, the process of pushing the light path is also the process of returning the light path, the reciprocating optical path difference can be consistent, and the precision of the reciprocating optical path difference is greatly improved.
Drawings
FIG. 1 is a schematic view of the left side structure of the present invention;
FIG. 2 is a schematic view of the right side structure of the present invention;
fig. 3 is a top view of the present invention;
fig. 4 is an exploded view of the present invention.
In the figure: 1. mounting a bottom plate; 2. a linear guide rail; 3. a guide rail seat; 4. a forward cone mirror; 5. a reverse angle cone mirror; 6. a forward collimator mount; 7. a reverse collimator mount; 8. a closed loop servo motor; 9. a screw rod; 10. a feed screw nut; 11. a sensor seat; 12. a sensor; 13. a motor seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the double-reverse optical path difference detection apparatus provided in this embodiment includes an installation base plate 1, a linear guide rail 2 installed on the installation base plate 1, a guide rail seat 3 installed on the linear guide rail 2, and a forward angle cone 4 and a reverse angle cone 5 installed on the guide rail seat 3; a forward collimator seat 6 and a reverse collimator seat 7 corresponding to the forward conical lens 4 and the reverse conical lens 5 are arranged at two ends of the mounting base plate 1, the forward conical lens 4 and the forward collimator seat 6 are correspondingly distributed at one side of the mounting base plate 1, and the reverse conical lens 5 and the reverse collimator seat 7 are correspondingly distributed at the other side of the mounting base plate 1; a closed-loop servo motor 8 is further installed at one end of the installation bottom plate 1, and the closed-loop servo motor 8 is fixed on the installation bottom plate 1 through a motor base 13; the closed-loop servo motor 8 is in transmission connection with a screw rod 9; the lead screw 9 passes through the guide rail seat 3 through a lead screw nut 10 to be connected with a sensor seat 11, and the guide rail seat 3 is in threaded connection with the lead screw 9 through the lead screw nut 10; a sensor seat 11 is fixed on the installation bottom plate 1, and a sensor 12 is installed on the sensor seat 11; the lead screw 9 is driven to rotate by the closed-loop servo motor 8, and the guide rail seat 3 moves along the linear guide rail 2 through the lead screw nut 10.
The working principle is as follows: according to the double-reverse optical path difference detection device, the closed-loop servo motor 8 drives the guide rail seat 3 to reciprocate on the linear guide rail 2 through rotation driving, the forward collimator seat 6 outputs optical signals through optical fibers by emitting and receiving reflection from the forward conical lens 4, and the optical signals are converted into optical path difference parameters which change in real time through an algorithm. When the collimator moves reversely, the reverse collimator base 7 outputs optical signals through optical fibers by emitting and receiving reflection from the reverse conical mirror 5, and the optical signals are converted into optical path difference parameters which change in real time through an algorithm; because the closed-loop servo motor 8 reciprocates constantly, the positive and negative directions of movement are switched constantly, and a relatively accurate optical path difference value can be obtained by comparing the positive and negative optical path difference data at the two ends, so that the method has good application to the accurate measurement fields of certain distances and the like.
In summary, the following steps: the double-reverse optical path difference detection device is carried out by a mechanism which is formed by matching a closed-loop servo motor 8 with a screw rod 9, a guide rail seat 3, a screw rod nut 10 and a linear guide rail 2 and is synchronous in reciprocating, the optical path difference in reciprocating can be consistent in the process of propelling the optical path and the process of returning the optical path, and the precision of the optical path difference in reciprocating is greatly improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a two reverse optical path difference detection device, includes mounting plate (1), its characterized in that: a linear guide rail (2) is installed on the installation bottom plate (1), a guide rail seat (3) is installed on the linear guide rail (2), and a forward conical lens (4) and a reverse conical lens (5) are installed on the guide rail seat (3); a forward collimator seat (6) and a reverse collimator seat (7) which correspond to the forward angle cone mirror (4) and the reverse angle cone mirror (5) are arranged at two ends of the mounting base plate (1); a closed-loop servo motor (8) is further installed at one end of the installation bottom plate (1), and a lead screw (9) is in transmission connection with the closed-loop servo motor (8); the lead screw (9) penetrates through the guide rail seat (3) through a lead screw nut (10) to be connected with a sensor seat (11), the sensor seat (11) is fixed on the installation bottom plate (1), and a sensor (12) is installed on the sensor seat (11).
2. The apparatus of claim 1, wherein: the closed-loop servo motor (8) is fixed on the mounting bottom plate (1) through a motor base (13).
3. The apparatus according to claim 1, wherein: the guide rail seat (3) is in threaded connection with the screw rod (9) through a screw rod nut (10).
4. The apparatus according to claim 1, wherein: the forward conical lens (4) and the forward collimator base (6) are correspondingly distributed on one side of the installation bottom plate (1), and the reverse conical lens (5) and the reverse collimator base (7) are correspondingly distributed on the other side of the installation bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221979039.9U CN218179972U (en) | 2022-07-28 | 2022-07-28 | Double-reverse optical path difference detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221979039.9U CN218179972U (en) | 2022-07-28 | 2022-07-28 | Double-reverse optical path difference detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218179972U true CN218179972U (en) | 2022-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221979039.9U Active CN218179972U (en) | 2022-07-28 | 2022-07-28 | Double-reverse optical path difference detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218179972U (en) |
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2022
- 2022-07-28 CN CN202221979039.9U patent/CN218179972U/en active Active
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