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Amplifier test system

A testing system and general testing technology, applied in electronic circuit testing and other directions, can solve the problems that manual testing is not suitable for production testing, inconvenient evaluation testing, etc., so as to reduce the complexity of evaluation testing, shorten the development cycle, and reduce the effect of human factors.

Inactive Publication Date: 2011-02-09
NTS TECH CHENGDU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the early stage of R&D, manual evaluation is adopted. Manual evaluation has certain requirements for evaluators. They must have certain knowledge of radio frequency testing for power amplifier products. At the same time, due to the large amount of test data, a lot of data needs to be recorded. Each power amplifier may need to test several indicators, so manual testing is not convenient for evaluation and testing in the early stage of development
[0003] Power amplifier testing is an important link in the production process of power amplifiers to ensure that product performance meets customer requirements and reduce defective product shipments. It is also an important means for R&D personnel to verify product performance. In the early stage of R&D, manual testing is also used. The evaluation situation is similar. Manual testing requires testers to be familiar with instrument operation and have rich experience in power amplifier testing. According to statistics, the test time for important indicators of each product and channel in the R&D cycle is about 0.75 people / day, while in the production process Each product has to go through multiple tests, so manual testing is not suitable for production testing

Method used

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Embodiment 1

[0024] Such as figure 1 As shown, the present invention is mainly composed of a signal source and a spectrum analyzer connected to the power amplifier under test through a radio frequency cable, and the signal source and the spectrum analyzer are also connected to a control computer through a GPIB card.

[0025] The control computer is equipped with an N16 automatic test system, and the entire process of power amplifier R&D evaluation and testing is controlled by the script of the N16 automatic test system. Through the N16 automatic test system, the control computer completes the following tasks:

[0026] a) Analysis of the test script;

[0027] b) Call the instrument drive control signal source and read the test data of the spectrum analyzer through the GPIB card;

[0028] c) Record test data.

[0029] The testing procedure of the present invention is as figure 2 As shown, it mainly consists of the following steps:

[0030] (a) First, preheat the power amplifier under te...

Embodiment 2

[0036] Such as image 3 As shown, the present invention is mainly composed of a signal source and a spectrum analyzer connected to the power amplifier under test through a radio frequency cable, and a general test card connected with the power amplifier under test through a control line and a power supply line. The card is connected with the control computer, and the test card is connected with the power supply and the control computer through the serial port line.

[0037] In order to provide power for the universal test card during the test and ensure its normal operation, the present invention also includes a power supply connected to the universal test card, and the universal test card is connected to the power supply through a power cable.

[0038] The control computer is equipped with an N16 automatic test system, and the entire process of the power amplifier automatic test is controlled by the script of the N16 test system. Through the N16 automatic test system, the con...

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Abstract

The invention discloses an amplifier test system. The amplifier test system mainly comprises a signal source connected with an amplifier to be tested and a frequency spectrograph; and both the signal source and the frequency spectrograph are connected with a control computer. The invention can shorten the development cycle, reduce the evaluation test complexity of development engineers, improve the efficiency of the operator and the test equipment, reduce the human factors so as to evaluate and test general members, and reduce the time cost, the equipment occupied cost and the manpower cost.

Description

technical field [0001] The invention relates to a power amplifier testing system. Background technique [0002] The R&D evaluation test is to fully evaluate various performance indicators of the power amplifier in the early stage of R&D, provide sufficient basis for the design of the power amplifier, and also ensure the consistency of product performance indicators to a certain extent. In the early stage of R&D, manual evaluation is adopted. Manual evaluation has certain requirements for evaluators. They must have certain knowledge of RF testing for power amplifier products. At the same time, due to the large amount of test data, a lot of data needs to be recorded. Each power amplifier may need to test several indicators, so manual testing is not convenient for evaluation and testing in the early stage of development. [0003] Power amplifier testing is an important link in the production process of power amplifiers to ensure that product performance meets customer requirem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/28
Inventor 王豫贺达强波杜春
Owner NTS TECH CHENGDU
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