Optical distance measuring device and optical distance measuring method
An optical ranging and distance technology, which is used in measuring devices, measuring distances, line-of-sight measurements, etc., can solve the problem that the measured target cannot be a light source, a hole, etc., and achieves low environmental dependence, high measurement accuracy, and measurement process. Flexible and easy effects
Inactive Publication Date: 2015-02-11
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology
[0003] In view of this, the present invention provides an optical distance measuring device and method to achieve simple, convenient and accurate distance measurement, and solve the problem that the measured object cannot be a light source, a hole, etc.
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[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] figure 1 It is a schematic structural diagram of the optical distance measuring device in this embodiment. Such as figure 1 As shown, the shape of the measured target 1 is circular, the color is white, and the color of the two baffles is black. An optical distance measuring device corresponding to the optical distance measuring method includes: a first measuring rod 2 , a second measuring rod 5 , a first baffle 3 , a second baffle 4 , and a slit 6 . Wherein, scales are provided on the first measuring rod 2 and the second measuring rod 5, and both are parallel to each other. The measured target 1 , the first measuring rod 2 and the second measuring rod 5 are on the same plane. The first baffle plate 3 and the second baffle plate 4 are all black, both are on the first measuring rod 2 and can translate their positions up and down alon...
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The invention provides an optical distance measuring device applied to an optical distance measuring method. The optical distance measuring device comprises a first measuring rod, a second measuring rod, two baffle plates and a slit, wherein the distance from the first measuring rod to a measured target is a distance x to be measured; the second measuring rod is parallel to the first measuring rod, the space between the first measuring rod and the second measuring rod is a, and are on the same level with the measured target; the first measuring rod is placed between the second measuring rod and the measured target; the two baffle plates, namely, a first baffle plate and a second baffle plate, are both placed on the first measuring rod, and the two baffle plates can transversely move along the first measuring rod; the slit is formed in the second measuring rod and can transversely move along the second measuring rod; when the symmetry of dimension of the measured target relative to the first baffle plate and the second baffle plate is observed through the slit, the positions of the first baffle plate and the second baffle plate on the second measuring rod are recorded, the space between the two positions is y, the space between the first baffle plate and the second baffle plate is h, and the distance to be measured can be calculated according to a formula shown as x=ah / (y-h).
Description
technical field [0001] The invention relates to a distance measuring device and method, in particular to an optical distance measuring device and method. Background technique [0002] Distance is an important measurement in measurement. Now, there are three main methods of distance measurement: direct measurement method, line-of-sight measurement method, and electromagnetic wave distance measurement. The direct measurement method is easily restricted by the terrain, and it is time-consuming and laborious when measuring a long distance; the line-of-sight measurement method is inconvenient to operate and is suitable for low-precision short-distance measurement; the wide application of electromagnetic wave distance measurement is optical distance measurement, which is divided into direct Method and phase ranging, the direct method is to measure the time required for light to go back and forth to the target, and then calculate the distance through the speed of light and the atmo...
Claims
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IPC IPC(8): G01C3/00
Inventor 李湘宁孙惠薛登攀
Owner UNIV OF SHANGHAI FOR SCI & TECH