CN101614542A - Simple and easy optical distance measuring instrument - Google Patents
Simple and easy optical distance measuring instrument Download PDFInfo
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- CN101614542A CN101614542A CN200810126740A CN200810126740A CN101614542A CN 101614542 A CN101614542 A CN 101614542A CN 200810126740 A CN200810126740 A CN 200810126740A CN 200810126740 A CN200810126740 A CN 200810126740A CN 101614542 A CN101614542 A CN 101614542A
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Abstract
A kind ofly partly measure the instrument of distance between two points by the light combined machine, this instrument is easy to use, is easy to carry, and is different from traditional chi fully and measures.Can measure the middle distance that has barrier maybe can't arrive the point-to-point transmission of another end points accurately, as: high mountain, deep-sea or the like.
Description
Technical field
The present invention relates to a kind ofly partly measure the instrument of distance between two points by the light combined machine, this instrument is easy to use, is easy to carry, and is different from traditional chi fully and measures.
Background technology
At present, known survey instrument is to be measured by various chis, as: box chi, meter ruler, milscale or the like.These instruments are accurately convenient when measuring short distance, but measure long distance or measure just have when the point-to-point transmission injustice has barrier many unfavorable: at first, survey long apart from the time, survey chi itself have retractility cause measure inaccurate; Secondly, there is barrier to cross and also causes the inaccurate of measurement maybe can't measure; At last, above-mentioned survey instrument must arrive range finding from two-end-point, cause not energy measurement of some distance that can't arrive an end points, as seabed, high mountain or the like.
Summary of the invention
For overcome existing chi survey instrument not energy measurement barrier is arranged, maybe can't arrive the distance of another end points, and measure long apart from the time because the retractility of chi itself causes the shortcoming of error.The invention provides a kind of optical gauge, this instrument can not only be measured the distance that barrier maybe can't arrive another end points easily, but also can effectively solve because of survey long apart from the time survey instrument the error that causes of retractility.
The technical solution adopted for the present invention to solve the technical problems is: utilize light and tested distance to form triangle, measure two jiaos angle and the length on one side formed with light in the triangle, perhaps directly form right-angle triangle and measure another angle angle except that the right angle and length on one side, just can draw the distance of being surveyed by calculating at last.
The present invention mainly contains three element, first element: with two device such as laser lamp and the accurate protractor combinations that can send out the rectilinear light beam high light, do leg-of-mutton one jiao.Wherein, the intersection point of amount light or the center of extending line intersection point corresponding amount hornwork, the zero degree direction of a light beam corresponding amount hornwork penetrates, (be the corresponding zero degree of convenience of logarithm, select other angle also passable, principle is to read the value of two light 0 ° of-90 ° of angle) another light beam can turn to arbitrarily between 0 °-90 ° of protractor; Second element: again with one can send out the device of straight line strong beam such as laser lamp and accurately the photo-sensitive cell of induction light direction be combined in and do leg-of-mutton another angle on the accurate protractor.Wherein, accurately the photo-sensitive cell of induction light direction can be placed in the elongated clarinet by photodiode, photodiode is fixed in an end of clarinet, light only has to be injected photodiode from the other end of clarinet along the direction of pipe and just can sense, promptly realize accurately to respond to direction of light, then, two terminals with photodiode seal in a light emitting diode and a power supply again, should note connecting both positive and negative polarity and power source voltage and can guarantee the stable normal work of element.Light emitting diode is done demonstration usefulness, and the line conduction light emitting diode is bright to user's indication when photodiode is received light beam, and circuit blocking-up light emitting diode does not work and indicates to the user when photodiode is confiscated light beam.Above-mentioned photo-sensitive cell is fixed on the protractor, and makes the center and the zero angle direction of the straight line corresponding amount hornwork at induction light place.The center of another light beam corresponding amount hornwork also can turn to arbitrarily in 0 ° of-180 ° of angle of protractor.The 3rd element: be exactly existing chi, select the distance at protractor center in the above-mentioned two elements of the higher dipstick metering of degree of accuracy for use.
In actual measurement, the measuring instrument that will contain two light beams is fixed, and adjusts two light beams and makes the two-end-point of two light beam irradiates in tested distance, reads angle a.The angle of noting two light beams can not surpass 90 ° otherwise tested distance is calculated to go out in the back, should seek appropriate point again at this moment and be fixed.The center fixation of another instrument is being done well on any light beam of light beam in the front, adjusted that photo-sensitive cell makes its induction light beam on the instrument, seeing promptly that light emitting diode is bright get final product that the while will estimate also that when retainer instrument the center of two instruments is in the measurement range of institute's mark.Then, adjust another light beam make its shine in range finding from the other end, just another light beam institute irradiation position that is not received by photo-sensitive cell is read protractor reading b.At last, the distance of measuring protractor center in two instruments with chi is read reading AB.
By last, a, b angle value and AB length value, can calculate range finding from length L:
L＝|AB*arctg?a*srctg?b/(arctg?a+arctg?b)|
Illustrate: a angle value must be in 0 ° of-90 ° of scope among the present invention, since the angle of a during greater than 90 ° above-mentioned gained three data can't calculate the length L of tested distance, 90 ° the value of calculating may be for negative, so the result adds absolute value in the formula at last to work as the b angle possibility Dayu of measuring in addition.
Less demanding or range finding is when using this instrument on a right angle platform in some measuring accuracy, can be only with a measuring instrument that has two light beams, with the center fixation of measuring instrument in range finding on another right-angle side of right-angle triangle that is a right-angle side, the straight directly leg-of-mutton right angle electrical in angle of the light beam of zero angle also is an end of tested distance on the instrument, the other end of the tested distance of another light beam irradiates is read the reading a of protractor.Measure the length A B of protractor center with chi again to the triangle right angle.Can calculate the length L of tested distance like this with angle a and length A B:
L＝AB*arctg?a
Above-mentioned, method is simple, and is convenient.For example when measuring the height of building, surface level itself is high vertical with building just, so method is conveniently measured on available.
The invention has the beneficial effects as follows: that can break through that traditional chi exists in measuring can't measure the distance that barrier is arranged, and long apart from the time have retractility own to bring error, and, it is simple that device of the present invention is tied 6 structures, only three elements are easy to carry, and are convenient and swift when installing and using.
Claims (2)
1. form triangular structure by light and tested distance for one kind,, calculate tested simple and easy optical distance measuring instrument at last apart from length by measuring leg-of-mutton two jiaos of angles and an edge lengths.
2. to the described simple and easy optical distance measuring instrument of claim 1, it is characterized in that: form leg-of-mutton limit by light and tested distance, calculate tested distance length on one side by leg-of-mutton geometrical property, in the triangle of its formation, if right-angle triangle only needs to know the length that arbitrary angle angle except that the right angle and arbitrary edge lengths just can draw tested distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810126740A CN101614542A (en) | 2008-06-23 | 2008-06-23 | Simple and easy optical distance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810126740A CN101614542A (en) | 2008-06-23 | 2008-06-23 | Simple and easy optical distance measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101614542A true CN101614542A (en) | 2009-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810126740A Pending CN101614542A (en) | 2008-06-23 | 2008-06-23 | Simple and easy optical distance measuring instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN101614542A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364789A (en) * | 2012-03-28 | 2013-10-23 | 大众汽车有限公司 | Method and sensor system for detecting target and/or determining space |
| CN106918320A (en) * | 2017-05-10 | 2017-07-04 | 李和松 | A kind of method that accurate measurement has distance between the two places that barrier is separated by |
| CN108195345A (en) * | 2017-12-20 | 2018-06-22 | 合肥英睿系统技术有限公司 | A kind of distance measuring method and system based on electronic imager |
-
2008
- 2008-06-23 CN CN200810126740A patent/CN101614542A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364789A (en) * | 2012-03-28 | 2013-10-23 | 大众汽车有限公司 | Method and sensor system for detecting target and/or determining space |
| CN104656096A (en) * | 2012-03-28 | 2015-05-27 | 大众汽车有限公司 | Method for detecting objects and/or determining distance between object and transport facility |
| CN107656285A (en) * | 2012-03-28 | 2018-02-02 | 大众汽车有限公司 | Detection object and/or the method and sensing system for determining spacing |
| CN106918320A (en) * | 2017-05-10 | 2017-07-04 | 李和松 | A kind of method that accurate measurement has distance between the two places that barrier is separated by |
| CN108195345A (en) * | 2017-12-20 | 2018-06-22 | 合肥英睿系统技术有限公司 | A kind of distance measuring method and system based on electronic imager |
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Open date: 20091230 |