CN219161325U - Laser sensor of optic fibre leaded light - Google Patents
Laser sensor of optic fibre leaded light Download PDFInfo
- Publication number
- CN219161325U CN219161325U CN202320213391.XU CN202320213391U CN219161325U CN 219161325 U CN219161325 U CN 219161325U CN 202320213391 U CN202320213391 U CN 202320213391U CN 219161325 U CN219161325 U CN 219161325U
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- optical fiber
- laser sensor
- light beam
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- circuit board
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- 239000000835 fiber Substances 0.000 title claims description 7
- 239000013307 optical fiber Substances 0.000 claims abstract description 59
- 238000010586 diagram Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
A laser sensor with optical fiber for guiding light comprises a circuit board provided with a laser sensor, wherein the laser sensor is provided with a transmitting port and a receiving port, and the transmitting port and the receiving port are covered by the end face of the optical fiber. The range of the sensing light beam of the laser sensor is enlarged through optical fiber light guide, the sensing light beam of the laser sensor is enlarged from 0.2 millimeter to be the same as the aperture of the optical fiber, and the sensing light beam can be adjusted according to the optical fiber, in other words, the larger the aperture of the optical fiber is, the larger the range of the sensing light beam is, meanwhile, the interval distance between the emitting light beam and the receiving light beam is pulled through adjusting the interval of the other end of the optical fiber, and the crosstalk problem is prevented.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to a laser sensor with optical fiber light guide.
Background
The laser sensor is a sensor for measuring by using a laser technology, which can convert a measured physical quantity (such as length, flow rate, speed, etc.) into an optical signal, and then convert the optical signal into an electrical signal using a photoelectric converter.
Laser sensor is widely used in a plurality of fields such as medical treatment, industry, simultaneously, in response tap technical field, also often used to replace infrared sensor, compares in infrared sensor, and laser sensor has advantages such as the precision is higher, the reaction is more sensitive. However, in the prior art, when the laser sensor is used, a light-transmitting cover is usually covered on the transmitting port and the receiving port, and the transmitting port and the receiving port of the laser sensor are extremely tiny and only 0.2 millimeter, so that even tiny stains appear on the light-transmitting cover covered on the laser sensor, and the problems of insensitive sensing, false triggering and even incapacity of sensing of the laser sensor are caused. And the interval between the transmitting port and the receiving port of the laser sensor is only 3 mm, if scratches appear on the light-transmitting cover, the light beams of the transmitting port or the receiving port are refracted to the other port, crosstalk occurs, so that the sensing is insensitive or is triggered by mistake, and the problem that the sensing tap is insensitive or even cannot be used is indirectly caused.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a laser sensor with optical fiber light guide.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a laser sensor with optical fiber for guiding light comprises a circuit board provided with a laser sensor, wherein the laser sensor is provided with a transmitting port and a receiving port, and the transmitting port and the receiving port are covered by the end face of the optical fiber.
And a second circuit board connected with the laser sensor is arranged on the circuit board.
The optical fiber connector is fixedly connected with the second circuit board, and through holes are formed in the positions of the optical fiber connector, corresponding to the transmitting port and the receiving port.
The optical fiber is inserted into the through hole and fixedly connected with the optical fiber connecting seat, and the aperture of the optical fiber is larger than the transmitting port and the receiving port.
The other end of the optical fiber is connected with an optical fiber connector, the optical fiber connector is provided with connecting holes, and the distance between the connecting holes is larger than the distance between the through holes.
Also comprises a shell for placing the circuit board.
The utility model has the beneficial effects that: the utility model provides a laser sensor with optical fiber light guide, which expands the range of the sensing light beam of the laser sensor through the optical fiber light guide, expands the sensing light beam of the laser sensor from 0.2 millimeter to be the same as the aperture of the optical fiber, and can be adjusted according to the optical fiber, in other words, the larger the aperture of the optical fiber is, the larger the range of the sensing light beam is, and simultaneously, the interval distance between the transmitting light beam and the receiving light beam is pulled by adjusting the interval of the other end of the optical fiber, so that the crosstalk problem is prevented.
The utility model has the characteristics of simple structure, convenient processing and easy assembly, and has strong practicability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded view of the structure of the present utility model;
FIG. 3 is a schematic diagram of light refraction according to the present utility model;
fig. 4 is a schematic structural diagram of a portion a in fig. 2.
Detailed Description
As shown in fig. 1-4, a laser sensor with an optical fiber 30 for guiding light includes a circuit board 10 on which a laser sensor 20 is mounted, the laser sensor 20 has an emission port 21 and a receiving port 22, the emission port 21 and the receiving port 22 are covered by end surfaces of the optical fiber 30, and an induced beam of the emission port 21 and the receiving port 22 is continuously refracted in the optical fiber 30, so that the range of the induced beam is enlarged.
The circuit board 10 is mounted with a second circuit board 11 connected to the laser sensor 20, and the second circuit board 11 is soldered vertically to the circuit board 10.
The optical fiber connector 12 is fixedly connected with the second circuit board 11, a through hole 121 is arranged at the position of the optical fiber connector 12 relative to the transmitting port 21 and the receiving port 22, and the sensing light beams of the transmitting port 21 and the receiving port 22 are transmitted into the optical fiber 30 through the through hole 121.
The optical fiber 30 is inserted into the through hole 121 and fixedly connected with the optical fiber connecting seat 12, so that the end face of the optical fiber 30 is always covered on the transmitting port 21 and the receiving port 22, the aperture of the optical fiber 30 is larger than that of the transmitting port 21 and the receiving port 22, the sensing light beams of the transmitting port 21 and the receiving port 22 are continuously refracted in the optical fiber 30, the range of the sensing light beams is enlarged, and the range of the sensing light beams is the same as that of the optical fiber 30, therefore, the larger the aperture of the used optical fiber 30 is, the larger the range of the sensing light beams is, and the problems of insensitivity, false triggering, incapacity of use and the like caused by tiny stains are avoided.
The other end of the optical fiber 30 is connected with an optical fiber 30 connector, the optical fiber 30 connector is provided with a connecting hole 41, the optical fiber 30 is inserted into the connecting hole 41, the distance between the connecting holes 41 is larger than the distance between the through holes 121, and then the distance between the emitted light beam and the received light beam is pulled apart, so that the occurrence of crosstalk problem is prevented, and the distance can be adjusted at will according to actual requirements.
Also included is a housing 50 for the circuit board 10, which is relatively simple in construction and is not described too much.
The utility model provides a laser sensor with optical fiber light guide, which expands the range of the sensing light beam of the laser sensor through the optical fiber light guide, expands the sensing light beam of the laser sensor from 0.2 millimeter to be the same as the aperture of the optical fiber, and can be adjusted according to the optical fiber, in other words, the larger the aperture of the optical fiber is, the larger the range of the sensing light beam is, and simultaneously, the interval distance between the transmitting light beam and the receiving light beam is pulled by adjusting the interval of the other end of the optical fiber, so that the crosstalk problem is prevented.
The utility model has the characteristics of simple structure, convenient processing and easy assembly, and has strong practicability.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the utility model, and that simple modifications and substitutions by those skilled in the art are within the scope of the utility model without departing from the spirit and scope of the utility model.
Claims (6)
1. A laser sensor for optical fiber light guide, characterized in that: the laser sensor (20) comprises a circuit board (10) provided with a laser sensor (20), wherein the laser sensor (20) is provided with a transmitting port (21) and a receiving port (22), and the transmitting port (21) and the receiving port (22) are covered by the end face of an optical fiber (30).
2. A fiber optic, light-guiding laser sensor as defined in claim 1, wherein: a second circuit board (11) connected with the laser sensor (20) is mounted on the circuit board (10).
3. A fiber optic, light-guiding laser sensor as defined in claim 2, wherein: the optical fiber connector further comprises an optical fiber connector base (12) fixedly connected with the second circuit board (11), and through holes (121) are formed in the positions of the optical fiber connector base (12) relative to the transmitting port (21) and the receiving port (22).
4. A fiber optic, light-guiding laser sensor as defined in claim 1, wherein: the optical fiber (30) is inserted into the through hole (121) and fixedly connected with the optical fiber connecting seat (12), and the aperture of the optical fiber (30) is larger than that of the transmitting port (21) and the receiving port (22).
5. A fiber optic, light-guiding laser sensor as defined in claim 4, wherein: the other end of the optical fiber (30) is connected with an optical fiber connector (40), the optical fiber connector (40) is provided with connecting holes (41), and the distance between the connecting holes (41) is larger than the distance between the through holes (121).
6. A fiber optic, light-guiding laser sensor as defined in claim 1, wherein: also comprises a shell (50) for placing the circuit board (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320213391.XU CN219161325U (en) | 2023-02-15 | 2023-02-15 | Laser sensor of optic fibre leaded light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320213391.XU CN219161325U (en) | 2023-02-15 | 2023-02-15 | Laser sensor of optic fibre leaded light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219161325U true CN219161325U (en) | 2023-06-09 |
Family
ID=86639238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320213391.XU Active CN219161325U (en) | 2023-02-15 | 2023-02-15 | Laser sensor of optic fibre leaded light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219161325U (en) |
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2023
- 2023-02-15 CN CN202320213391.XU patent/CN219161325U/en active Active
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