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Device and method for testing capacitance and resistance values

A technology of resistance value and resistance to be measured, applied in capacitance measurement, measuring device, measuring resistance/reactance/impedance, etc., can solve problems such as error-prone, inaccurate stability, rough calculation, etc., and achieve low cost, accurate and fast testing Effect

Active Publication Date: 2018-06-01
SUZHOU HUAXING YUANCHUANG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The indirect test method built by discrete components has many devices, rough calculation, imprecise and low stability, and is prone to errors

Method used

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  • Device and method for testing capacitance and resistance values
  • Device and method for testing capacitance and resistance values
  • Device and method for testing capacitance and resistance values

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Embodiment Construction

[0045] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0046] It should be understood that the ordinal words first, second, etc. described in the specification are only for clarity of description, and are not intended to limit the order of elements, components or components, that is, described as the first element, component and component, and the second element , component or component may also be expressed as a second element, component and component as well as a first element, component or component.

[0047] figure 1 It is an overall schematic diagram of a device 10 for t...

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Abstract

The invention discloses a device for testing the capacitance and resistance values, and the device comprises The device comprises an input module, a measurement module, a calibration module, a gain control module, and a processing module, wherein each of the input module, calibration module and gain control module includes a gating switch which is used for cooperating with other parts in the inputmodule, calibration module, and gain control module to select the connected other parts. The measurement module generates a scanning excitation signal, sequentially generates system calibration values and measurement values according to different connection relationships formed according to different control signals input from the self-processing module to the gating switch, and outputs generatedsystem calibration values and measurement values to the processing module. The processing module carries out the calculation, and obtains the values of to-be-tested capacitor or a to-be-tested resistor. The method also discloses a method for testing the capacitance and resistance values.

Description

technical field [0001] The invention relates to the field of component testing. More specifically, it relates to a device and a testing method for testing capacitance and resistance. Background technique [0002] In today's electronic circuits, whether it is a hard board or a flexible board, there are devices such as resistors or capacitors distributed. In order to check whether the component placement is good after the board is made, a method that can easily determine whether the device is attached correctly and the attached components is needed. Means and methods for whether the value is within the standard range. [0003] The capacitance and resistance values ​​of test components can be roughly divided into the following two methods: LCR instrument test method and circuit test method. Among them, the LCR meter test method connects the precision meter in series for direct measurement, and reads out or transmits the resistance or capacitance value measured by the meter pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/08G01R27/26
CPCG01R27/08G01R27/2605
Inventor 陈文源许小军
Owner SUZHOU HUAXING YUANCHUANG TECH CO LTD
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