Theodolite laser target measurement method for rotary reflector surface antennas

A technology of rotating reflection and measuring methods, which is applied in the direction of measuring devices, measuring angles, instruments, etc., can solve the problems of inaccurate control of operation errors, heavy workload, and poor adaptability, and achieve the goals of improving efficiency, improving applicability, and reducing costs Effect

Active Publication Date: 2012-07-25
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

In practice, the above method has the following disadvantages: in the process of transferring the arc length mark of the steel tape ruler to the antenna surface, the workload is large and the operation error cannot be accurately controlled; the prism needs to be ground according to different measurement ranges, which is costly and poor in adaptability

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  • Theodolite laser target measurement method for rotary reflector surface antennas
  • Theodolite laser target measurement method for rotary reflector surface antennas
  • Theodolite laser target measurement method for rotary reflector surface antennas

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Embodiment Construction

[0037] Combine below figure 1 and figure 2 The present invention is further described.

[0038] Step 1: Place the reflector facing the sky;

[0039] Step 2: Install the rotating tooling, adjust the rotating axis of the tooling to coincide with the rotating axis of the reflector, and adjust the reflector to the vertical of the rotating axis of the tooling;

[0040] The rotary tooling is composed of a base and two upper and lower platforms assembled on the base, and the upper and lower platforms can rotate integrally around the rotary axis of the tooling. In the embodiment, the tooling platform 1 at the upper part and the tooling platform 2 at the lower part are installed on the flange of the tooling base through precision bearings.

[0041] Step 3: install theodolite A and theodolite B on the rotating tooling in sequence from top to bottom, and accurately center and level them; in the embodiment, theodolite A is installed on the tooling platform 1, and theodolite B is insta...

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Abstract

The invention discloses a theodolite laser target measurement method for rotary reflector surface antennas, which mainly relates to the precision measurement of large rotary reflector surface antennas in the fields of satellite communication and astronomical observation. A theodolite A and a theodolite B, at least one of which is a laser electronic theodolite, are vertically arranged on an upper rotary tooling platform and a lower rotary tooling platform according to a certain interval, the zenith angles from a certain point of the surface of an antenna to the theodolite A and the theodolite B are solved under the rectangular coordinate system of the antenna, laser spots are projected onto the panel of the antenna according to the solved angles to form targets, another theodolite is used for observing the zenith angle values of the targets, the error value between the measured angle value of each point and the solved value is calculated, and the axial offset value of each point is then calculated, so that the mean square root error of the antenna surface is obtained in the end. The method increases the efficiency, reduces the error, and adopts the mature measuring devices to replace spectially ground prisms or steel tapes, thus reducing the cost and increasing efficiency and applicability.

Description

technical field [0001] The invention relates to a method for measuring a laser target of a rotating reflective surface antenna theodolite in the fields of satellite communication and astronomical detection. Background technique [0002] With the rapid development of satellite communication technology and astronomical detection technology, medium and large area antennas are more and more widely used. For medium and large surface antennas with a diameter ≥ 8 meters, mature optical measurement methods include theodolite steel tape ruler method, single pentaprism method and double pentaprism method. In practice, the above method has the following disadvantages: in the process of transferring the arc length mark of the steel tape ruler to the antenna surface, the workload is heavy and the operation error cannot be accurately controlled; the prism needs to be ground according to different measurement ranges, which is costly and poor in adaptability. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01C1/00
Inventor 王庆东
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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