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Photoelectric theodolite operating distance verification method based on beat star

A technology of photoelectric theodolite and action distance, which is applied to instruments, measuring devices, etc., can solve the problem of time-consuming and laborious verification of photoelectric theodolite action distance.

Active Publication Date: 2021-05-25
中国人民解放军63660部队
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for verifying the action distance of photoelectric theodolite based on shooting stars, and solve the technical problem of time-consuming and laborious verification of the action distance of photoelectric theodolite

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  • Photoelectric theodolite operating distance verification method based on beat star

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Embodiment 1

[0042]A 450mm-caliber photoelectric theodolite needs to be developed to have a radiation intensity of 9w / sr under the condition that the horizontal visibility of the atmosphere is not less than 20km, the observation elevation angle is not less than 30°, and the root mean square of atmospheric jitter is not greater than 2″. Not less than 100km.

[0043] When the target is at the limit distance position of the photoelectric theodolite, the target can be equivalent to a point source target. In theory, the radiation flux of the point source target on the photoelectric theodolite is (I is the target radiation intensity 9w / sr, l 0 is the distance from the target to the target surface 100km, S is the area of ​​the target surface, and P is the target radiation flux), Then according to (τ=τ 大气 ×τ 设备 ,τ 大气 According to the Lowtran calculation, take 0.7345, the distance is 100km, and the elevation angle is 30°) to calculate the irradiance E of the target reaching the target surfa...

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Abstract

The invention belongs to the technical field of photoelectric measurement, and provides a photoelectric theodolite operating distance verification method based on star shooting, which comprises the following steps: firstly, moving a photoelectric theodolite to a flat and hard ground, leveling and positioning, then selecting n groups of stars with high elevation angles at the positions of the stars in a star library, carrying out observation shooting on each group of selected stars from a zero-equal star, if the photoelectric theodolite can observe and shoot, selecting the next star magnitude to observe and shoot until the photoelectric theodolite cannot observe, repeating the steps until the selected n groups of stars are shot, and recording the grade of the last observable star in each group of stars as Mn; and calculating the average irradiance of the stars such as Mn on the target surface of the equipment, calculating the irradiance of the target on the target surface of the equipment, and if the target surface E is greater than or equal to the target surface E of the stars, determining that the operating distance of the equipment meets the requirement. The method is easy to operate and high in reliability, is less limited by terrains, time, measurement and control points and the like, and has very high applicability.

Description

technical field [0001] The invention belongs to the technical field of photoelectric measurement, and in particular relates to a method for verifying the working distance of a photoelectric theodolite. Background technique [0002] The photoelectric theodolite is an important component of the shooting range measurement and control equipment. It can measure the trajectory parameters of the flying target in the air. It has the advantages of simple operation, reliable operation and high measurement accuracy. The operating distance is the main technical index of the photoelectric theodolite. [0003] In the prior art, the photoelectric theodolite equipment of each shooting range mainly tracks the actual target, and verifies the operating distance of the equipment through the maximum distance that the equipment can detect and track. This method has the following deficiencies: the number of actual flights of targets that meet the equipment conditions is small, and the actual verif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 张智香张丁梧刘德超张众森季锐
Owner 中国人民解放军63660部队
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