CN102798375A - Universal laser distance measuring sensor for super-wide temperature range - Google Patents
Universal laser distance measuring sensor for super-wide temperature range Download PDFInfo
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- CN102798375A CN102798375A CN2012102812086A CN201210281208A CN102798375A CN 102798375 A CN102798375 A CN 102798375A CN 2012102812086 A CN2012102812086 A CN 2012102812086A CN 201210281208 A CN201210281208 A CN 201210281208A CN 102798375 A CN102798375 A CN 102798375A
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Abstract
The invention relates to a universal laser distance measuring sensor which is suitable for a super-wide temperature range, comprising a laser emission unit, a laser reception unit, and a microprocessor analysis unit, wherein the laser emission unit is provided with a piece of light-guide fiber to connect with a laser emitter, laser is emitted from the extended light-guide fiber end, the laser emitter is put in a normal temperature environment of -10-40 DEG C, the light-guide fiber emitting end is put at a super-wide range ambient temperature, and the light-guide fiber is bent a plurality of times in its path. According to the invention, the problem of limited applicable temperature of lasers is effectively solved, the application of the laser distance measuring sensor in various ambient temperatures is realized, and the large-range adjustment of laser emitting direction is realized.
Description
Technical field
The present invention relates to field of optical measuring technologies, be specifically related to a kind of universal laser range sensor applicable to ultra wide temperature range.
Background technology
The basic structure of laser ranging system is known, and existing laser ranging system adopts ranging phase method mostly.For example; Chinese patent document notification number CN2265525Y discloses a kind of pulse semiconductor laser distance measuring equipment; Comprise: signal transmitting system, receiving system, microprocessor and display; Its signal transmitting system is made up of impulse semiconductor laser, side cut lens, and receiving system is because condenser lens, snoot, interference filter, the avalanche photodide composition that the side cut lens are cut edge and are close to.Chinese patent document notification number CN1034142C discloses a kind of distance-measuring equipment, a concrete visible light measuring beam that is produced by semiconductor laser; Collimating apparatus object lens are used for collimating at the steering handle measuring beam of the optical axis of collimating apparatus object lens; The circuit arrangement of a modulation measuring beam; A receiving objective is used to receive and be imaged onto a receiving trap to the measuring beam that a remote testee reflects; The light-deflection apparatus that can insert is used to produce the internal reference distance between an intervention semiconductor laser and the receiving trap; With an electronic analysis device, be used to measure and show the distance of measured testee.Wherein, receiving trap has one section light transmitting fiber to be connected with photoelectric commutator, wherein be placed in the light transmitting fiber plane of incidence in the imaging plane of receiving objective for measuring remote object, and the may command plane of incidence moves perpendicular to optical axis the position thus.
Laser ranging system is compared with electro-optical distance instrument because characteristics such as the monochromaticity of laser is good, high directivity add that the electronic circuit semiconductor transformation is integrated, and not only day and night operation but also can improve distance accuracy significantly reduces weight and power consumption.But; The design of existing laser ranging system owing to limit by condition, generally can only work online in-10 ℃～40 ℃ environment temperature for a long time; Intermittent work in-10 ℃～60 ℃ environment temperature, the environment that exceeds the said temperature scope can't use.And sensor Laser emission and receiving unit and signal processing relative position fix, can't wide-angle adjustment laser direction.
Summary of the invention
To the problems referred to above; The purpose of this invention is to provide the universal laser range sensor of a kind of ultra wide temperature range, solved the problem that to use laser range sensor under the situation that exceeds continuous working environment temperature-10 ℃～40 ℃ and discontinuous operation environment temperature-10 ℃～60 ℃.
Another object of the present invention is to solve sensor is adjusted the Laser emission direction on a large scale under already installed situation problem.
In order to realize the foregoing invention purpose, the present invention adopts following technical scheme, the universal laser range sensor of ultra wide temperature range; Comprise laser beam emitting device, laser receiver, analytical microprocessor device; It is characterized in that; Laser beam emitting device is provided with one section light transmitting fiber and is connected with generating laser, and laser is gone out by the light transmitting fiber end-fire that extends, and generating laser is placed-10 ℃～40 ℃ normal temperature environment; The light transmitting fiber transmitting terminal is placed the super wide range environment temperature, and light transmitting fiber can be repeatedly crooked in its path.
Because light transmitting fiber is influenced by ambient temperature very little; Adopt light transmitting fiber that the Laser emission end is extended; The user can select length of fiber according to actual needs; The final transmitting terminal of generating laser body and laser is separated, and the transmitting terminal after the prolongation places environment for use, and its environment scope of application is expanded significantly like this.And owing to adopt light transmitting fiber, light transmitting fiber is repeatedly crooked in its path, is convenient to adjust the Laser emission direction; Emission after the extension, the receiving plane volume is little, and is in light weight, more flexible aspect installation and direction adjustment.
Along with the development of laser range sensor, be applied in on-line monitorings such as online deformation monitorings such as bridge, tunnel, water level, thing position at present, fields such as the process control of production line, even in some HTHP or other rugged surroundings.The present invention 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.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Reference numeral: 1-normal temperature environment, the ultra wide temperature environment of 2-, 3-laser instrument, 4-light transmitting fiber.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is done further detailed, clear, complete explanation, the present invention meets novelty, creativeness and the practicality that Patent Law requires fully with explanation.What should be noted that embodiment describes is a part of embodiment of the present invention, can not be used to limit protection scope of the present invention.
The universal laser range sensor of a kind of ultra wide temperature range comprises laser beam emitting device, laser receiver; Analytical microprocessor device; As shown in Figure 1, laser beam emitting device is provided with one section light transmitting fiber 4 and is connected with generating laser 3, and laser is gone out by the light transmitting fiber end-fire that extends; Generating laser is placed-10 ℃～40 ℃ normal temperature environment 1, the light transmitting fiber transmitting terminal is placed super wide range environment temperature 2.Light transmitting fiber can be repeatedly crooked in its path.
One section of light transmitting fiber is connected with generating laser; The other end places environment for use, and generating laser is placed the normal temperature working environment, and fibre-optic transmitting terminal is placed environment for use; Both guarantee the operate as normal of generating laser, guaranteed the realization of laser ranging function again.
Because light transmitting fiber is influenced by ambient temperature very little; Adopt light transmitting fiber that the Laser emission end is extended; The user can select length of fiber according to actual needs; The final transmitting terminal of generating laser body and laser is separated, and the transmitting terminal after the prolongation places environment for use, and its temperature environment scope of application is expanded significantly like this.And owing to adopt light transmitting fiber; Optical fiber technology is very ripe; Laser in light transmitting fiber, propagate have bandwidth, advantages such as loss is low, monochromaticity good, antijamming capability is strong, fidelity is high, dependable performance; Light transmitting fiber is repeatedly crooked in its path, is convenient to adjust the Laser emission direction; Emission after the extension, the receiving plane volume is little, and is in light weight, more flexible aspect installation and direction adjustment.
Along with the development of laser range sensor, be applied in on-line monitorings such as online deformation monitorings such as bridge, tunnel, water level, thing position at present, fields such as the process control of production line, even in some HTHP or other rugged surroundings.The present invention 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.
Claims (2)
1. the universal laser range sensor of ultra wide temperature range comprises laser beam emitting device, laser receiver; Analytical microprocessor device; It is characterized in that laser beam emitting device is provided with one section light transmitting fiber and is connected with generating laser, laser is gone out by the light transmitting fiber end-fire that extends; Generating laser is placed-10 ℃～40 ℃ normal temperature environment, the light transmitting fiber transmitting terminal is placed the super wide range environment temperature.
2. the universal laser range sensor of ultra wide temperature range according to claim 1 is primarily characterized in that, can in very wide temperature range, normally use, and described light transmitting fiber can be repeatedly crooked in its path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102812086A CN102798375A (en) | 2012-08-09 | 2012-08-09 | Universal laser distance measuring sensor for super-wide temperature range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102812086A CN102798375A (en) | 2012-08-09 | 2012-08-09 | Universal laser distance measuring sensor for super-wide temperature range |
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| Publication Number | Publication Date |
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| CN102798375A true CN102798375A (en) | 2012-11-28 |
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| CN2012102812086A Pending CN102798375A (en) | 2012-08-09 | 2012-08-09 | Universal laser distance measuring sensor for super-wide temperature range |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147077A1 (en) * | 2019-01-17 | 2020-07-23 | 西门子（中国）有限公司 | Flexible laser detection and ranging system, and mobile device provided with system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6411371B1 (en) * | 1998-09-02 | 2002-06-25 | Leica Geosystems Ag | Device for optical distance measurement |
| CN1779486A (en) * | 2004-11-19 | 2006-05-31 | 南京德朔实业有限公司 | Laser range finde |
| CN101105530A (en) * | 2006-07-10 | 2008-01-16 | 胡书彬 | Wave ranging device with guiding passage |
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2012
- 2012-08-09 CN CN2012102812086A patent/CN102798375A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6411371B1 (en) * | 1998-09-02 | 2002-06-25 | Leica Geosystems Ag | Device for optical distance measurement |
| CN1779486A (en) * | 2004-11-19 | 2006-05-31 | 南京德朔实业有限公司 | Laser range finde |
| CN101105530A (en) * | 2006-07-10 | 2008-01-16 | 胡书彬 | Wave ranging device with guiding passage |
Non-Patent Citations (1)
| Title |
|---|
| 张小勇等: "基于相位式激光测距的光纤传感器研究", 《传感器与微系统》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147077A1 (en) * | 2019-01-17 | 2020-07-23 | 西门子（中国）有限公司 | Flexible laser detection and ranging system, and mobile device provided with system |
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Application publication date: 20121128 |