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Measuring method, measuring circuit and monitoring apparatus

A measurement method and a measurement circuit technology, which are applied in the measurement field, can solve the problems of increasing the production cost of the measurement circuit, complex structure, waste of measurement circuits, etc., and achieve the effects of saving PCB layout space, simplifying design, and saving costs

Inactive Publication Date: 2014-01-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for applications that do not require high measurement accuracy, using the above measurement circuit will waste the PCB (Printed Circuit Board, printed circuit board) layout of the measurement circuit due to its complex structure, especially the need to set up an analog-to-digital conversion device. space, resulting in an increase in the fabrication cost of the measurement circuit

Method used

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  • Measuring method, measuring circuit and monitoring apparatus
  • Measuring method, measuring circuit and monitoring apparatus
  • Measuring method, measuring circuit and monitoring apparatus

Examples

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no. 1 example

[0065] In the first embodiment of the present invention, a method for measuring the resistance value of a resistance element or the capacitance of a capacitor in a communication device is provided, wherein one end of the resistance element is connected to a charging power supply, and the other end of the resistance element is respectively connected to a capacitor. One end is connected to the controller, and the other end of the capacitor is grounded, that is, the RC charging and discharging circuit is composed of a resistance element and a capacitor connected in series. see figure 2 , the measurement method includes the following steps:

[0066] Step 201, the controller controls the capacitor to discharge;

[0067] In this embodiment, the controller can use a complex programmable logic controller, a field programmable logic controller or a single-chip microcomputer on a single board in the communication device to realize its functions.

[0068] In this embodiment, the contr...

no. 2 example

[0111] In the second embodiment of the present invention, a method for measuring the resistance value of a resistance element or the capacitance of a capacitor in a communication device is provided, wherein one end of the resistance element is connected to a controller, and the other end of the resistance element is connected to the capacitance of the capacitor. One end is connected, and the other end of the capacitor is grounded, that is, an RC charging and discharging circuit is composed of a resistance element and a capacitor in series, see Figure 5 , the measurement method includes the following steps:

[0112] Step 501, the controller controls the capacitor to charge;

[0113] In this embodiment, the controller can use a complex programmable logic controller, a field programmable logic controller or a single-chip microcomputer on a single board in the communication device to realize its functions.

[0114] In this embodiment, the controller includes a digital IO (Input / ...

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Abstract

The invention provides a measuring method, a measuring circuit and a monitoring apparatus. The measuring method is used for measuring a resistance value of a resistor element or a capacitance value of a capacitor; one end of the resistor element is connected with a charging power source; the other end of the resistor element is respectively connected with one end of the capacitor and a controller; and the other end of the capacitor is grounded. The measuring method comprises the following steps that: the controller controls the capacitor to carry out charging; when charging of the capacitor is started, a timer is started to carry out timing; the controller detects whether the input voltage of the capacitor reaches a preset first voltage threshold value; if so, the timing of the timer is stopped so as to obtain charging time of the capacitor; and according to the charging time, the preset first voltage threshold value, and the voltage value of the charging power source, the resistance value of the resistor element or the capacitance of the capacitor is calculated. The provided measuring method is suitable for a digital circuit; measurement of the resistance value of the resistor element or the capacitance of the capacitor can be completed without an analog-digital converter, so that the manufacturing cost of the measuring circuit can be effectively saved.

Description

technical field [0001] The invention relates to measurement technology, in particular to a measurement method, a measurement circuit and a monitoring device for measuring the resistance value of a resistance element or the capacitance of a capacitor in communication equipment. Background technique [0002] The traditional method of measuring the resistance value of the resistance element needs to measure the current value or voltage value, which requires the use of analog-to-digital conversion devices, such as figure 1 As shown, the voltage value on the sampling resistance element 12 is obtained through the analog-to-digital conversion device 13 , and then the resistance value of the resistance element 11 is obtained through calculation according to the charging power source 14 . [0003] The capacitance measurement of the capacitor is even more complicated. The measurement principle is that after the capacitor is charged, the charged quantity Q, the voltage U between the tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02G01R27/26
Inventor 叶位彬
Owner ZTE CORP
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