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Servo test device and method for performance of optical signal emitted by satellite optical communication terminal

A satellite optical communication and test device technology, applied in the field of aviation applications, can solve the problems of inability to realize follow-up control and large size of the test device, and achieve the effects of light weight, convenient remote measurement, and improved integrity

Active Publication Date: 2013-08-28
HARBIN INST OF TECH
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the test device is large in size and unable to realize follow-up control when the optical signal performance test of the entire satellite is performed by means of spatial light focusing, and provides a satellite optical communication terminal that transmits optical signal performance follow-up Test device and method

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  • Servo test device and method for performance of optical signal emitted by satellite optical communication terminal
  • Servo test device and method for performance of optical signal emitted by satellite optical communication terminal
  • Servo test device and method for performance of optical signal emitted by satellite optical communication terminal

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specific Embodiment approach 1

[0020] Specific implementation mode one: the following combination Figure 2 to Figure 5 Describe this embodiment, the satellite optical communication terminal described in this embodiment transmits optical signal performance follow-up test device, it comprises follow-up front-end test part and signal reception processing part, follow-up front-end test part is arranged on the optical signal of satellite optical communication terminal Inside the light output port of the antenna, the follower front-end test part includes a bracket 1, a miniature manual rotary table 2, a miniature angular displacement table 3 and a fiber collimator 4. The bracket 1 is fixed at the light output port of the optical antenna, and the base of the miniature manual rotary table 2 is fixed. On the support 1, a miniature angular displacement stage 3 is fixedly arranged on the turntable surface of the miniature manual rotary table 2, and a fiber collimator 4 is fixedly arranged on the turntable surface of t...

specific Embodiment approach 2

[0031] Specific implementation mode two: the following combination Figure 2 to Figure 5 This embodiment is described. This embodiment is based on the test method of the satellite optical communication terminal transmitting optical signal performance follow-up test device described in Embodiment 1, which includes the following steps:

[0032] Step 1. Set the follow-up front-end test part inside the optical antenna output port of the satellite optical communication terminal;

[0033] Step 2. Adjust the angle of the fiber collimator 4 with the micro angular displacement stage 3, and adjust the relative position of the fiber collimator 4 on the support 1 with the micro manual rotary table 2, so that the light entrance of the fiber collimator 4 is aligned The propagation direction of the optical signal in the optical antenna, and avoid aiming at the no-light area of ​​the optical antenna;

[0034] Step 3. At the same time, observe the output curve of the power meter 6 and the outpu...

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Abstract

The invention discloses a servo test device and method for performance of an optical signal emitted by a satellite optical communication terminal, belonging to the field of aviation application. The invention solves the problems that the test device has large size and servo control cannot be realized when the current space light focusing method is adopted for performing whole satellite optical signal performance test. In the invention, a servo front end test part is installed in a light emitting port of an optical antenna of the satellite optical communication terminal, a support of the servofront end test part is fixed at the light emitting port of the optical antenna, a base of a micro manual rotating platform is fixed on the support, a micro angular displacement table is fixedly installed on the micro manual rotating platform, an optical fiber collimator is fixedly installed on the turntable face of the micro angular displacement table, and a light incident port of the optical fiber collimator is aligned with the optical signal transmitting direction in the optical antenna; a signal processing part is connected by a transmission optical fiber, two ends of the transmission optical fiber are respectively connected with the optical fiber collimator and a photoelectric probe, the photoelectric probe is respectively connected with a power meter and a spectrograph, and signals output by the power meter and the spectrograph enter a computer.

Description

technical field [0001] The invention relates to a follow-up testing device and method for the performance of an optical signal emitted by a satellite optical communication terminal, and belongs to the field of aviation applications. Background technique [0002] With the completion of the research and development of the satellite optical communication terminal, the terminal will enter the whole-star test phase with other devices on the star. In the whole star test, the performance and operation stability of the terminal need to be tested. For satellite optical communication terminals, the main basis for judging its performance and stability is whether the various indicators of the optical signal emitted by the terminal, such as light intensity and wavelength, meet the standards and are stable. [0003] Such as figure 1 As shown, when the terminal is tested on the ground, its base position and attitude are fixed, and when testing optical performance, the two-dimensional tur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/07G01J1/42G01J3/30G01J9/00
Inventor 于思源韩琦琦刘阳马晶谭立英
Owner HARBIN INST OF TECH
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