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Micro-current measurement method and device, control element and readable storage medium

A measurement method and technology for controlling components, applied in the field of electrical signal measurement, can solve the problems of high measurement circuit complexity and measurement cost, and achieve the effect of reducing measurement cost

Pending Publication Date: 2022-02-11
SHENZHEN YSPRING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the existing measurement method can obtain a very accurate current value, the complexity of the measurement circuit and the measurement cost involved in the existing measurement method are relatively high

Method used

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  • Micro-current measurement method and device, control element and readable storage medium
  • Micro-current measurement method and device, control element and readable storage medium
  • Micro-current measurement method and device, control element and readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] See figure 1 , an embodiment of the present application proposes a micro-current measurement circuit 100, the micro-current measurement circuit 100 includes a charging and discharging element 110, a charging resistor 120, a micro-current generating element 130 and a control element 140, and the charging and discharging control of the control element 140 Pin 8 connects one end of the charging resistor 120, one end of the microcurrent generating element 130 and one end of the charging and discharging element 110, the other end of the charging and discharging element 110 is grounded, and the other end of the charging resistor 120 The other end of the micro-current generating element 130 is used to connect to the same power supply terminal 1, the charging source pin 5 of the control element 140 can be connected to the power supply terminal 1, and the ground pin 3 of the control element 140 is grounded.

[0051] Wherein, the power terminal 1 can output a voltage of 3.3v, and...

Embodiment 2

[0089] See Image 6 , another embodiment of the present application, proposes a micro-current measurement device 200, which is applied to a micro-current measurement circuit including a charge-discharge element, a charge resistor, a micro-current generating element, and a control element, and the charge-discharge control lead of the control element The pin is connected to one end of the charging resistor, one end of the microcurrent generating element and one end of the charging and discharging element, the other end of the charging and discharging element is grounded, and the other end of the charging resistor is connected to the microcurrent generating element. The other ends of both are used to connect to the same power supply end. The micro-current measuring device 200 includes: a charging and discharging control module 210 and a micro-current determination module 220 .

[0090] The charging and discharging control module 210 is used to control the charging and discharging...

Embodiment 3

[0095] The third embodiment of the present application proposes a control element, including a memory and a processor, the memory stores a computer program, and when the computer program runs on the processor, it executes the microcurrent described in the above embodiment Measurement methods.

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Abstract

The invention discloses a micro-current measurement method and device, a control element and a readable storage medium, and the micro-current measurement method is applied to a micro-current measurement circuit comprising a charging and discharging element, a charging resistor, a micro-current generation element and a control element. A charging and discharging control pin of the control element is connected with one end of the charging resistor, one end of the micro-current generating element and one end of the charging and discharging element, the other end of the charging and discharging element is grounded, and the other end of the charging resistor and the other end of the micro-current generating element are both used for being connected with the same power supply end. According to the method, after a charging and discharging element is controlled to be completely discharged through a charging and discharging control pin, the charging and discharging element is controlled to be charged through the charging and discharging control pin until the voltage of the charging and discharging element reaches a voltage threshold value, the charging duration of the charging and discharging element is recorded, and the charging duration serves as the standard duration; and the micro-current generated by the micro-current generating element is determined according to the standard charging duration. According to the invention, the measurement cost and the complexity of the micro-current measurement circuit are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of electrical signal measurement, in particular to a microcurrent measurement method, device, control element and readable storage medium. Background technique [0002] The measurement of electrical signals is a very important signal in electronic products, especially in sensory measurement, general sensors will convert various physical signals (sound, light, temperature, humidity, electricity, etc.) The electrical signal is processed and measured, and the digital signal is obtained and converted into a physical signal unit. [0003] In the field of sensor measurement, most physical signals are converted by sensors to obtain very weak electrical signals, such as uA-level micro-current signals. At present, the conventional uA-level micro-current signal measurement method generally converts the micro-current into a voltage through a precision sampling resistor and amplifies it through an instrument operationa...

Claims

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Application Information

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IPC IPC(8): G01R19/00
CPCG01R19/0092
Inventor 赵章博庄腾飞
Owner SHENZHEN YSPRING TECH