A passive device intelligent equivalent circuit model and parameter measurement device and working method

An equivalent circuit model, passive device technology, applied in measurement devices, capacitance measurement, measurement of electrical variables, etc., can solve problems such as limited types of applicable passive devices, insufficient efficiency and accuracy, and fixed broadband fitting structure. Achieve the effect of improving the measurement frequency range is smaller, improving the measurement and calculation accuracy, and broadening the range of types

Active Publication Date: 2021-06-08
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of traditional methods such as small measurement frequency range, complicated operation, high cost, insufficient efficiency and precision, fixed broadband fitting structure, and limited types of applicable passive devices, etc., and provide a passive device intelligent etc. Efficient circuit model and parameter measurement device and working method

Method used

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  • A passive device intelligent equivalent circuit model and parameter measurement device and working method
  • A passive device intelligent equivalent circuit model and parameter measurement device and working method
  • A passive device intelligent equivalent circuit model and parameter measurement device and working method

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Embodiment 1

[0049] Such as figure 1 As shown, it is a schematic structural diagram of an intelligent equivalent circuit model of a passive device and a parameter measurement device disclosed in this embodiment. It consists of five modules: a human-computer interaction display and data processing module 101 , a signal sending module 102 , an intelligent equivalent test circuit module 103 , a signal receiving module 104 , and a power supply module 105 .

[0050]In this embodiment, to measure the equivalent circuit model and parameters of the passive device to be tested, the passive device to be measured is first connected in series to the intelligent equivalent test circuit module 103 through the leads, and the power supply module 105 performs the test for each module. Power supply and fully start each module, then the human-computer interaction display and data processing module 101 generates a specific digital signal, transmits it to the signal sending module 102 and converts it into an a...

Embodiment 2

[0055] Combine below Figure 5 and Figure 6 , an example is given to describe the working method of an intelligent equivalent circuit model of a passive device and a parameter measurement device. Such as Figure 6 As shown, the working steps of the device include:

[0056] S1. Test preparation work. The first step is to connect a certain passive device to be tested to the intelligent equivalent test circuit module, and then supply power to each module through the power module and fully start each module.

[0057] S2. Carry out signal transmission, set the sending sampling rate, start and cut-off frequency, amplitude, duration and other information through the human-computer interaction display and data processing module, generate specific sending signals according to these parameters, send and save the set numbers The signal is sent to the signal sending module, and the sending module converts the digital signal from the human-computer interaction display and data processi...

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Abstract

The invention discloses a passive device intelligent equivalent circuit model and parameter measurement device and working method. The device includes a human-computer interaction display and data processing module, a signal sending module, an intelligent equivalent test circuit module, a signal receiving module, and a power supply. module. In the present invention, the passive devices are connected in series to the intelligent equivalent test circuit module through lead wires, the initial frequency response is measured, and then the entire frequency band is intelligently divided into multiple sub-frequency segments by using the pattern recognition algorithm, and then the sub-frequency is intelligently divided into Select the best test circuit and the optimal equivalent circuit model, and finally use the intelligent equivalent calculation method to obtain the optimal RLC equivalent circuit model and its component parameters of passive devices in different frequency bands and display them in frequency bands. The circuit of the device disclosed in the invention is relatively simple, and the measurement result is intelligently equivalently calculated by dividing frequency bands, with fast speed, wide application range, high precision and more practical application value.

Description

technical field [0001] The invention relates to the technical field of impedance measurement, in particular to an intelligent equivalent circuit model of a passive device, a parameter measurement device and a working method, capable of intelligently equivalently outputting passive devices to be measured in different frequency bands according to their frequency response characteristics. Optimal zero-order, first-order, second-order and third-order series-parallel RLC circuit models, and get the component parameters of equivalent resistance, equivalent capacitance and equivalent inductance in the equivalent circuit of each frequency band. Background technique [0002] In recent years, impedance measurement technology and frequency response detection technology have made great progress and are widely used, mainly in the fields of industry, medical and health, transportation, national defense research and energy. Taking the ultrasonic transducer as an example, the ultrasonic tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02G01R27/26
CPCG01R27/02G01R27/26G01R27/2605
Inventor 韦岗代岳杨萃
Owner SOUTH CHINA UNIV OF TECH
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