CN105548991A - Laser ranging finder off-site calibrating device - Google Patents
Laser ranging finder off-site calibrating device Download PDFInfo
- Publication number
- CN105548991A CN105548991A CN201510880763.4A CN201510880763A CN105548991A CN 105548991 A CN105548991 A CN 105548991A CN 201510880763 A CN201510880763 A CN 201510880763A CN 105548991 A CN105548991 A CN 105548991A
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- CN
- China
- Prior art keywords
- laser
- range finder
- calibration system
- calibrating installation
- beam splitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/497—Means for monitoring or calibrating
Abstract
The invention relates to a laser ranging finder off-site calibrating device. The calibrating device comprises a frequency calibration system, a beam divergence angle calibration system, an energy calibration system, and a beam splitting system, etc. A laser ranging finder emits laser to the beam splitting system; the beam splitting system is used for delivering the received laser beam to the frequency calibration system, the beam divergence angle calibration system, and the energy calibration system for calibration. A timing circuit and a laser device are successively connected to one output end of the beam splitting system, wherein the timing circuit drives the laser device to emit semiconductor laser with the same pulse width to the laser ranging finder. The laser ranging finder off-site calibrating device is not influenced by factors such as ambient weather condition or ground, and can be adapted to complicated and variable environment; accurate and stable calibration tests with simple operation can be carried out for laser ranging in an airfield.
Description
Technical field
The present invention relates to a kind of range finder using laser calibrating installation outside the venue, belong to the technical field of electro-optical distance measurement calibration.
Background technology
Laser range finder utilizes laser to measure accurately target, by objective emission beam of laser to be measured, by the laser beam of reflection meeting, calculate laser range finder from the time being transmitted into acceptance, thus mensuration target range, have and measure accurately, precision advantages of higher.So, be very necessary link to the calibration operation of laser range finder.Especially be in various aircraft development, production run, need accurately to measure range finder using laser major parameter in outfield, thus realize the assessment to properties of product.At present the calibration of range finder using laser is adopted more to the tentative calibration of baseline field, this requires higher to external environment condition, weather condition and site condition, and be not suitable for field calibration, therefore, design a kind of calibrating installation that can adapt to external complex environment necessary.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, propose a kind of range finder using laser calibrating installation outside the venue, be applicable to carry out calibration testing in outfield to laser range finder.
The present invention is achieved by following scheme:
A kind of range finder using laser outfield calibrating installation, this device comprises frequency calibration system, beam divergence angle calibration system, energy calibration system, beam splitting system, laser instrument and timing circuit; Wherein, beam splitting system is used for that the laser beam that received range finder using laser is launched is distributed to described frequency calibration system, beam divergence angle calibration system and energy calibration system and calibrates, the output terminal of beam splitting system is connected to timer circuit and laser instrument successively, and the transmitting terminal of laser instrument is used for range finder using laser launching simulation laser.
Further, described means for correcting also comprises: Computer Control Unit, and Computer Control Unit is used for receiving timing circuit and controls it.
Further, described frequency calibration system forms by photoelectric transformer with for the frequency meter of frequency calibration.
Further, described beam divergence angle calibration system is made up of the thin lens for focusing on laser beam and CCD camera.
Further, described energy calibration system is used for the energy of testing laser range finder.
Further, described laser instrument sends the semiconductor laser identical with the light impulse length of range finder using laser.
The present invention's beneficial effect is compared to the prior art:
The present invention proposes a kind of range finder using laser calibrating installation outside the venue, this device is made up of frequency calibration system, beam divergence angle calibration system, energy calibration system, beam splitting system, laser instrument, timing circuit etc.Can detect major parameters such as outdoor on-the-spot range finder using laser system beam divergence angle, repetition frequency, maximum ranging distance, blind area and minimum distinguishable distances, parameter in laser range finder be processed and assessed simultaneously.Be not subject to the impact of the factors such as periphery weather condition, place, environment complicated and changeable can be adapted to, realize outside airport, carrying out calibration testing precise and stable, simple to operate to laser ranging.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention range finder using laser calibrating installation outside the venue;
Fig. 2 is each several part concrete structure schematic diagram of the range finder using laser calibrating installation outside the venue of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described in detail.
The present invention proposes a kind of range finder using laser outfield calibrating installation, this device comprises: beam splitting system, frequency calibration system, beam divergence angle calibration system, energy calibration system, laser instrument, timing circuit and Computer Control Unit.Wherein, range finder using laser launches beam of laser to beam splitting system, after beam splitting system accepts this laser beam, be divided into three parts and be transmitted to frequency calibration system, beam divergence angle calibration system and energy calibration system respectively, realize the calibration of the major parameters such as the beam divergence angle to range finder using laser, repetition frequency, maximum ranging distance, blind area and minimum distinguishable distance.One output terminal of beam splitting system is connected to timing circuit and laser instrument successively, beam splitting system by optical signal transmission to timing circuit and triggering timing circuit; Timing circuit starts timing, and drive laser sends the receiving circuit of laser to range finder using laser through the time delay of setting, and after range finder using laser receives, Emission Lasers, to beam splitting system, stops timing after timing circuit again, thus completes a timing.Computer Control Unit connects timing circuit, for calculating the data returned and showing.
Below the various piece of range finder using laser outfield calibrating installation is explained in detail:
1) beam splitting system: the laser beam that beam splitting system is launched for accepting laser ranging, and this laser beam is divided into three parts and sends to frequency calibration system, beam divergence angle calibration system and energy calibration system respectively.
2) frequency calibration system: frequency calibration system is made up of photoelectric transformer and frequency meter; The features such as this photoelectric transformer has at a high speed, conversion time is precise and stable, carry out light-to-current inversion to the laser received from beam splitting system, and then utilize frequency meter to carry out frequency calibration.
3) beam divergence angle calibration system: beam divergence angle system is made up of thin lens and CCD camera, thin lens is utilized to focus on the laser beam received, by CCD camera, laser facula is measured again, and coordinate focal distance of thin convex lens to carry out calculating the correction realized beam divergence angle.
4) energy calibration system: described energy calibration system mainly calculates the energy of range finder using laser.
5) laser instrument: the laser instrument in the present embodiment can launch the semiconductor laser of 1.064 μm, for the width of analogue echo pulse, the width of the pulse that itself and laser ranging are sent is identical.
6) timing circuit: adopt precision high frequency timing circuit in the present embodiment, by adjusting the time delay of timing circuit, writing laser Emission Lasers is to range finder using laser, and the time turning back to beam splitting system again launched by range finder using laser, thus can draw distance of finding range accordingly.
Under the thinking that the present invention provides; the mode easily expected to those skilled in the art is adopted to convert the technological means in above-described embodiment, replace, revise; and the effect played goal of the invention that is substantially identical with the relevant art means in the present invention, that realize is also substantially identical; the technical scheme of such formation is carried out fine setting to above-described embodiment and is formed, and this technical scheme still falls within the scope of protection of the present invention.
Claims (6)
1. a range finder using laser outfield calibrating installation, is characterized in that, this device comprises frequency calibration system, beam divergence angle calibration system, energy calibration system, beam splitting system, laser instrument and timing circuit; Wherein, beam splitting system is used for that the laser beam that received range finder using laser is launched is distributed to described frequency calibration system, beam divergence angle calibration system and energy calibration system and calibrates, the output terminal of beam splitting system is connected to timer circuit and laser instrument successively, and the transmitting terminal of laser instrument is used for range finder using laser launching simulation laser.
2. a kind of range finder using laser outfield according to claim 1 calibrating installation, it is characterized in that, described means for correcting also comprises: Computer Control Unit, and Computer Control Unit is used for receiving timing circuit and controls it.
3. a kind of range finder using laser outfield according to claim 1 calibrating installation, it is characterized in that, described frequency calibration system forms by photoelectric transformer with for the frequency meter of frequency calibration.
4. a kind of range finder using laser outfield according to claim 1 calibrating installation, it is characterized in that, described beam divergence angle calibration system is made up of the thin lens for focusing on laser beam and CCD camera.
5. a kind of range finder using laser outfield according to claim 1 calibrating installation, is characterized in that, described energy calibration system is used for the energy of testing laser range finder.
6. a kind of range finder using laser outfield according to claim 1 calibrating installation, is characterized in that, described laser instrument sends the semiconductor laser identical with the light impulse length of range finder using laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880763.4A CN105548991A (en) | 2015-12-05 | 2015-12-05 | Laser ranging finder off-site calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880763.4A CN105548991A (en) | 2015-12-05 | 2015-12-05 | Laser ranging finder off-site calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105548991A true CN105548991A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510880763.4A Pending CN105548991A (en) | 2015-12-05 | 2015-12-05 | Laser ranging finder off-site calibrating device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090055117A1 (en) * | 2004-07-09 | 2009-02-26 | Hella Kgaa | Method And Device For Compensating The Mounting Tolerances Of A Distance Sensor |
| CN101476844A (en) * | 2008-12-09 | 2009-07-08 | 南瑶 | Calibration method and standard target plate for carrier optoelectronic series on-site dynamic self-calibration |
| CN101793508A (en) * | 2010-03-23 | 2010-08-04 | 长春理工大学 | Device for measuring parallelism of transmission shaft and receiving shaft of laser distance measuring equipment based on focal plane scanning |
| CN102243301A (en) * | 2010-05-13 | 2011-11-16 | 南瑶 | Detection device for laser rangefinder |
-
2015
- 2015-12-05 CN CN201510880763.4A patent/CN105548991A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090055117A1 (en) * | 2004-07-09 | 2009-02-26 | Hella Kgaa | Method And Device For Compensating The Mounting Tolerances Of A Distance Sensor |
| CN101476844A (en) * | 2008-12-09 | 2009-07-08 | 南瑶 | Calibration method and standard target plate for carrier optoelectronic series on-site dynamic self-calibration |
| CN101793508A (en) * | 2010-03-23 | 2010-08-04 | 长春理工大学 | Device for measuring parallelism of transmission shaft and receiving shaft of laser distance measuring equipment based on focal plane scanning |
| CN102243301A (en) * | 2010-05-13 | 2011-11-16 | 南瑶 | Detection device for laser rangefinder |
Non-Patent Citations (2)
| Title |
|---|
| 崔岩梅等: "激光测距机的现场校准", 《光电子.激光》 * |
| 杨冶平等: "脉冲激光测距机最大测程校准方法", 《应用光学》 * |
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Application publication date: 20160504 |
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