CN203376477U - Laser distance measuring sensor - Google Patents
Laser distance measuring sensor Download PDFInfo
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- CN203376477U CN203376477U CN201320321525.6U CN201320321525U CN203376477U CN 203376477 U CN203376477 U CN 203376477U CN 201320321525 U CN201320321525 U CN 201320321525U CN 203376477 U CN203376477 U CN 203376477U
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- laser
- distance measuring
- measuring sensor
- laser distance
- temperature
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Abstract
The utility model provides a laser distance measuring sensor, and realizes that the laser distance measuring sensor can continuously work in a large temperature range. The laser distance measuring sensor is composed of a laser sending device, a laser receiving device, an analyzing device and a light guide fiber. The laser sending device and the laser receiving device are respectively connected with the analyzing device. One end of the light guide fiber is connected with a laser sender arranged inside the laser sending device. The other end of the light guide fiber is a laser sending end. The laser distance measuring sensor effectively solves a problem of limitation of laser applicable temperature, realizes application of the laser distance measuring sensor in temperature of various environments, and realizes a wide range adjustment of laser sending direction. Currently, the laser distance measuring sensor is applied to the fields of online deformation monitoring of bridges, tunnels, etc., online monitoring of water level, material level, etc., process control of production lines, and even environments like high temperature, high pressure or other severe environments.
Description
Technical field
The utility model relates to laser range sensor, is specifically related to a kind of laser range sensor that is applicable to large-temperature range.
Technical background
The basic structure of laser ranging system is known, and existing laser ranging system adopts ranging phase method mostly.For example, the Chinese patent literature that the patent No. is 94192114.X discloses a kind of distance-measuring equipment, a concrete visible ray measuring beam produced by semiconductor laser; Collimating apparatus object lens, collimate for the steering handle measuring beam of the optical axis at the collimating apparatus object lens; The circuit arrangement of a modulation measuring beam; A receiving objective, be imaged onto a receiving trap for the measuring beam received and a remote testee is reflected; An accessible light-deflection apparatus, for generation of the internal reference distance between an intervention semiconductor laser and receiving trap; With an electronic analysis device, for measuring and show the distance of measured testee.Wherein, receiving trap has one section light transmitting fiber to be connected with photoelectric commutator, wherein for measuring remote object, the light transmitting fiber plane of incidence is placed in the imaging plane of receiving objective, and can controls the plane of incidence and move perpendicular to optical axis position thus.
Laser ranging system, due to characteristics such as the monochromaticity of laser is good, high directivities, adds that the electronic circuit semiconductor transformation is integrated, with electro-optical distance instrument, compares, and not only day and night operation but also can improve distance accuracy, significantly reduce weight and power consumption.But, the design of existing laser ranging system, owing to being subject to condition, limit, generally can only in the environment temperature of-10 ℃～40 ℃, work online for a long time, exceeding above-mentioned scope can only intermittent work in the environment temperature of 40 ℃～60 ℃, and higher than 60 ℃ or lower than the temperature of-10 ℃ under can't use.And sensor Laser emission and receiving unit and signal processing relative position fix, can't wide-angle adjust laser direction.
The utility model content
The purpose of this utility model is to provide a kind of laser range sensor, solved existing laser range sensor higher than 60 ℃ or lower than the temperature of subzero 10 ℃ under can't use, and the fixing problem of Laser emission direction, realize laser range sensor continuous working in large-temperature range, adjusted the Laser emission direction on a large scale.
In order to achieve the above object, the utility model provides following technical scheme: a kind of laser range sensor, by laser beam emitting device, laser receiver, analytical equipment and light transmitting fiber, formed, laser beam emitting device is connected with analytical equipment respectively with laser receiver, a fibre-optic end is connected with the generating laser in laser beam emitting device, and the fibre-optic other end is the Laser emission end.
Preferably, described light transmitting fiber carries out the crooked direction of adjusting the Laser emission end.
The utility model has solved the limited problem of laser instrument Applicable temperature effectively, has realized the application of laser range sensor in various environment temperatures, and has realized the adjustment on a large scale of Laser emission direction.Be applied at present the deformation in line monitorings such as bridge, tunnel, the on-line monitorings such as water level, thing position, the fields such as the process control of production line, even in some High Temperature High Pressure or other rugged surroundings.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
Shown in Fig. 1, a kind of laser range sensor of the utility model, by laser beam emitting device 1, light transmitting fiber 2, laser receiver 5 and analytical equipment 6, formed, laser beam emitting device 1 is connected with analytical equipment 6 respectively with laser receiver 5, one end of light transmitting fiber 2 is connected with the generating laser 3 in laser beam emitting device 1, and the other end of light transmitting fiber 2 is Laser emission end 4; The length of described light transmitting fiber 2 is determined according to the needs in the actual measurement process.Described analytical equipment is the hardware with microprocessor, and the information that microprocessor is delivered in order to process laser beam emitting device and laser receiver is carried out data operation, output result of calculation.
Preferred technical scheme is that described light transmitting fiber 2 carries out the crooked direction of adjusting Laser emission end 4.As shown in the dotted line in Fig. 1.Light transmitting fiber 2 can be repeatedly crooked in its path, is convenient to adjust the Laser emission direction.
Hardware device of the present utility model, accessory all can be bought on market.
In the actual measurement process, adopt light transmitting fiber that the Laser emission end is extended, generating laser body and Laser emission end are separated, the generating laser body is placed in the working environment of subzero 10 ℃～40 ℃ of temperature ranges above freezing, Laser emission end after prolongation is placed in the actual measurement environment, both guarantee the normal operation of generating laser, guaranteed again the realization of laser ranging function.Because light transmitting fiber is influenced by ambient temperature very little, therefore, the actual measurement environment can be the measurement environment of large-temperature range, such as subzero 10 ℃～60 ℃ above freezing, or even subzero 20 ℃～80 ℃ above freezing, and can continuous working in above-mentioned large-temperature range, thereby the scope of application of laser range sensor is expanded significantly,, and measure accurately.And, the emission after extension, the receiving plane volume is little, lightweight, more flexible aspect installation and direction adjustment.
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by the described protection domain with claim.
Claims (2)
1. a laser range sensor, it is characterized in that: described laser range sensor is comprised of laser beam emitting device, laser receiver, analytical equipment and light transmitting fiber, laser beam emitting device is connected with analytical equipment respectively with laser receiver, a fibre-optic end is connected with the generating laser in laser beam emitting device, and the fibre-optic other end is the Laser emission end.
2. a kind of laser range sensor according to claim 1 is characterized in that: described light transmitting fiber carries out the crooked direction of adjusting the Laser emission end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320321525.6U CN203376477U (en) | 2013-06-06 | 2013-06-06 | Laser distance measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320321525.6U CN203376477U (en) | 2013-06-06 | 2013-06-06 | Laser distance measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203376477U true CN203376477U (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320321525.6U Expired - Fee Related CN203376477U (en) | 2013-06-06 | 2013-06-06 | Laser distance measuring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203376477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066952A (en) * | 2015-09-10 | 2015-11-18 | 黑龙江大学 | Laser short-distance measurement method |
-
2013
- 2013-06-06 CN CN201320321525.6U patent/CN203376477U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066952A (en) * | 2015-09-10 | 2015-11-18 | 黑龙江大学 | Laser short-distance measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140101 Termination date: 20190606 |