Characteristic impedance testing system and method

A characteristic impedance and test system technology, applied in the direction of measuring resistance/reactance/impedance, measuring electricity, measuring devices, etc., can solve problems such as human error, high labor intensity, and difficult management of detected data, so as to avoid errors and improve Effects on Reliability and Efficiency

Inactive Publication Date: 2010-11-03
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the past, the traditional detection method needs to rely on the manual operation of the operator. Due to the wide range of detection and many funct...

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  • Characteristic impedance testing system and method
  • Characteristic impedance testing system and method
  • Characteristic impedance testing system and method

Examples

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Embodiment Construction

[0012] Such as figure 1 Shown is a system architecture diagram of a preferred embodiment of the characteristic impedance testing system of the present invention, and the characteristic impedance testing system 20 runs in the testing computer 2 . Wherein, the test computer 2 is connected to the control computer 1 and the time domain reflectometer 3 through the switch 4 , and the control computer 1 is connected to the mechanical arm 5 . A probe grasping device 50 is installed on the mechanical arm 5 , and the probe grasping device 50 is used to grasp the probe of the time domain reflectometer 3 . The printed circuit board 6 is placed on the testing machine 7, and in other embodiments, the printed circuit board 6 can also be replaced by other electronic devices.

[0013] After the test starts, the characteristic impedance testing system 20 sends a probe positioning instruction to the control computer 1, and the control computer 1 controls the probe grasping device 50 of the mech...

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Abstract

The invention relates to a characteristic impedance testing method, comprising the following steps: setting a test document; obtaining the position of a part to be tested; locating a probe of a time-domain reflectometer on the position of the part to be tested on a printing circuit board; obtaining the characteristic impedance of the part to be tested; analyzing the characteristic impedance of the part to be tested; and generating and storing test report. The invention further provides a characteristic impedance testing system; the characteristic impedance of the part on the printing circuit board can be automatically tested by utilizing the invention.

Description

technical field [0001] The invention relates to a testing system and method, in particular to a characteristic impedance testing system and method. Background technique [0002] With the development of electronic science and technology, printed circuit boards (Printed Circuit Board, PCB) have become an indispensable and important part of various electrical equipment (such as computers). Since there are ultra-high frequency microwave signals transmitted in the circuit of the printed circuit board, in order to ensure the reliability of the printed circuit board in use, it is necessary to detect the characteristic impedance of its parts when leaving the factory. The characteristic impedance refers to the impedance of a component (such as a signal line) having an infinite length, and the unit is ohm. [0003] In the past, the traditional detection method needs to rely on the manual operation of the operator. Due to the wide range of detection and many functions, it is often ver...

Claims

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Application Information

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IPC IPC(8): G01R27/02
CPCG01R31/2843G01R27/04
Inventor 梁献全李昇军陈永杰许寿国
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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