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Angle division test system and test method of Scott transformer

A Scott transformer and test system technology, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve the problems of high cost, complex structure, large measurement error, etc., to achieve simple composition, reduce system cost, and improve accuracy. Effect

Pending Publication Date: 2022-04-05
北京七星飞行电子有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the embodiment of the present invention provides an angle-divider test system and test method for Scott transformers to solve the problems of large measurement errors, complex structures, and high costs in prior art test systems

Method used

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  • Angle division test system and test method of Scott transformer
  • Angle division test system and test method of Scott transformer
  • Angle division test system and test method of Scott transformer

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Embodiment

[0037] Such as figure 1 As shown, an existing Scott transformer is provided in this implementation, and the Scott transformer is composed of two transformers, including two magnetic cores, two input windings and three output windings. The primary windings are independent of each other, and the secondary windings are connected to each other, including two input terminals and three output terminals.

[0038] Such as figure 1 , 2 As shown, the currently commonly used angle-divider test system is excited by a 14-bit decoder digital resolver converter, an angle position indicator, and a reference transformer. In this test system, the input angle θ is controlled by changing the 1-14 bit binary switch at the input end, and the specific angle (180°-0.02197°) is read from the bit weight table. The output angle θ' is read from the angular position indicator. Angle minutes △=|(θ'-θ)×60|.

[0039] The test system has the following deficiencies:

[0040] (1) The angle difference of t...

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Abstract

The invention discloses an angle division test system and test method of a Scott transformer. The system comprises a signal generator; the input end of the digital transmitter is electrically connected with the signal generator, the signal generator provides an excitation source for the digital transmitter, and the input end of the Scott transformer is electrically connected with the output end of the digital transmitter; the voltage acquisition unit is used for acquiring voltage of the input end and the output end of the Scott transformer; and the angular score calculation unit is used for calculating the angular score value of the Scott transformer according to the voltage of the input end and the output end of the Scott transformer. The test system only comprises one special device of the digital transmitter, the composition is simple, the system cost is reduced, and the test accuracy is improved. The input angle is calculated through input voltage, and the output angle is calculated through output end voltage. Because the angle score is directly calculated by the input and output end voltages of the transformer and is not influenced by other equipment, the angle score is tested to be the angle difference of the transformer, and the accuracy of the test result is improved.

Description

technical field [0001] The embodiment of the present invention relates to the field of testing electronic components, in particular to a test system and a test method for an angle division of a Scott transformer. Background technique [0002] SCOTT transformer (SCOTT transformer) is the core device of navigation computer synchronizer and phase splitter, widely used in aviation, aerospace and navigation and other fields, with the characteristics of small size, stable performance, high reliability and strong resistance to harsh environments , plays an irreplaceable role in many occasions. However, in the existing Scott transformer, the angle deviation is relatively large during the signal conversion process, so the measurement and test of the Scott transformer angle deviation is essential. [0003] At present, the commonly used angle sub-test system is excited by a 14-bit decoder digital resolver converter, an angle position indicator, and a reference transformer. The test s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 裴艳慧王素云桑红梅
Owner 北京七星飞行电子有限公司
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