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Method for indoor measuring for TV theodolite dynamic angle measurement accuracy using rotary target

A technology of angle measurement accuracy and theodolite, applied in theodolites, measuring devices, instruments, etc., can solve the problem of not finding detection equipment or methods, and achieve good results

Inactive Publication Date: 2008-04-30
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

At present, we have not found any relevant detection equipment or method that can detect the dynamic angle measurement accuracy of TV tracking theodolite indoors

Method used

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  • Method for indoor measuring for TV theodolite dynamic angle measurement accuracy using rotary target
  • Method for indoor measuring for TV theodolite dynamic angle measurement accuracy using rotary target
  • Method for indoor measuring for TV theodolite dynamic angle measurement accuracy using rotary target

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Embodiment Construction

[0027] The present invention is implemented according to the steps proposed in the technical solution. The accuracy of the target encoder can be selected according to the accuracy requirements of the equipment under test. In general, a high-precision 23-bit absolute encoder can be selected; the base of the target should be stable and the rotation arm should be stable, preferably controlled at Within 2″; the target and the device under test should have the same time reference and the same sampling frequency, and a time system terminal can be installed in the target and the device under test respectively, and this problem can be solved through the method of time system synchronization; in order to make the device For stable tracking and high-precision data, the target should have a stable speed control system; the focal length of the collimator of the target can be selected as 1m; the a angle of the target can be selected from 20° to 30°, and the b angle can be selected from 20° ...

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Abstract

The invention relates to a method for measuring the dynamic angle measuring precision of a TV transit instrument indoors by using a rotating drone, and pertains to a detecting method in the technical field of photoelectric measuring. Aiming at solving the main technical problem of providing a method for measuring the dynamic angle measuring precision of the TV transit instrument by using rotating drone indoors, the invention has the technical proposal that: firstly, a rotating drone is selected; the rotating drone needs to be provided with an angle measuring coder on the rotating shaft of the rotating arm; the optical system on the rotating arm forms an optical cone provided with an optical cone peak through rotation; secondly, the rotating drone and the light path of the detected TV for tracing the transit instrument are abut-jointed so as to form a measuring system; thirdly, the measurement of the dynamic angle measuring precision of the TV transit instrument is implemented; fourthly, the data treatment is carried out that: the value of the drone coder is substituted into the coordinate changing formula to get the space indication value of the drone so as to account the dynamic angle measuring precision of the transit instrument according to the Bessel formula. The method solves the detection of dynamic angle measuring precision of the TV transit instrument indoors.

Description

1. Technical field [0001] The invention belongs to the technical field of photoelectric measurement and relates to a method for detecting the accuracy of dynamic angle measurement of a TV tracking theodolite indoors with a rotating target. 2. Background technology [0002] TV tracking theodolite is a large-scale photoelectric measuring equipment with automatic tracking and measurement functions using TV measurement technology. It is mainly used for the measurement of the trajectory of aircraft, ships, stars and other moving objects. The dynamic angle measurement accuracy of the TV tracking theodolite refers to the error between the real-time measured target space pointing value and the theoretical value or the true value of the theodolite under the specified angular velocity and angular acceleration motion state, usually expressed by the root mean square error of the space pointing value, applied It is often projected onto the horizontal plane and the vertical plane, which a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C1/02G01C25/00
Inventor 贺庚贤沈湘衡
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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