Line impedance detecting method, system, device and readable storage medium
A line impedance and detection method technology, applied in the direction of measuring devices, measuring resistance/reactance/impedance, measuring electricity, etc., can solve problems such as inaccurate algorithms and low reliability
Inactive Publication Date: 2018-01-16
TRULY OPTO ELECTRONICS
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Problems solved by technology
Current line detection methods include open-short test, flying probe test, etc. These methods can obtain the impedance value of the overall line, but the algorithm is not accurate enough, and can only judge the approximate open-short circuit situation based on the obtained impedance value. For specific line impedance In terms of value size, the reliability is not high
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0037] The embodiment of the present invention discloses a line impedance detection method, see figure 1 shown, including:
[0038] S1: Perform an impedance test on the line with an impedance tester, and obtain a test impedance curve composed of the line impedance measurement data;
[0039] Wherein, the line may be a differential impedance line or a single-ended impedance line. When the line is a differential impedance line, two points of the probe of the im...
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The invention discloses a line impedance detecting method which comprises the steps of acquiring a testing impedance curve which is composed of line impedance measurement data through an impedance tester; setting the measured value at a position at a half part of a rising portion of a first trough on the testing impedance curve as a starting point, and setting the measured value at a position at ahalf part of a rising portion of an ending area on the testing impedance curve as a terminal point; confirming impedance measurement data in an interval between the starting point and the terminal point as first impedance measurement data; calculating the average value of the first impedance measurement data in a preset value range, and obtaining a first detected value; and determining whether the first detected value is in the preset impedance range. Through the algorithm provided by the invention, a relatively accurate line impedance value can be obtained, and the line impedance value is utilized for determining the circuit breaking condition and the shortcircuit condition of the line. Compared with the prior art, the line impedance detecting method is advantageous in that a finer linecondition analysis result can be obtained through the specific impedance. The invention further discloses a line impedance detecting system, a device thereof and a readable storage medium.
Description
technical field [0001] The invention relates to electronic circuits, in particular to a circuit impedance detection method, system, device and readable storage medium. Background technique [0002] Conductive circuit is one of the important hardware in electronic technology, and generally works in the form of wiring harness or integrated circuit board. With the development of electronic technology, the quality requirements of electronic circuits are getting higher and higher, and its circuit impedance is an important parameter to test the quality of circuits. Current line detection methods include open-short test, flying probe test, etc. These methods can obtain the impedance value of the overall line, but the algorithm is not accurate enough, and the approximate line open-short condition can only be judged based on the obtained impedance value. For specific line impedance In terms of value size, the reliability is not high. Contents of the invention [0003] In view of ...
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Login to View More IPC IPC(8): G01R27/02G01R31/02
Inventor 曹斌严小超
Owner TRULY OPTO ELECTRONICS