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Sinusoidal electric quantity signal conversion and acquisition device

A technology of signal conversion and acquisition device, applied in the direction of using digital measurement technology for measurement, etc., can solve the problems of complex circuit and low reliability.

Inactive Publication Date: 2009-10-28
SHENZHEN CENTURY MAN COMMUNICATION EQUIPMENT CO LTD
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Problems solved by technology

[0003] The invention provides a sinusoidal power signal conversion and acquisition device to solve the technical problems of low reliability and complicated circuits in the existing sinusoidal power signal conversion and acquisition

Method used

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  • Sinusoidal electric quantity signal conversion and acquisition device
  • Sinusoidal electric quantity signal conversion and acquisition device

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Embodiment Construction

[0013] Such as figure 1 , 2 As shown, a sinusoidal power signal conversion acquisition device includes a power input module, a signal extraction module, a peak sampling module (PKD01) and an analog-to-digital conversion calculation module. After the signal extraction module extracts the sinusoidal power signal, it does not need to do too much The processing still maintains the characteristics of its sinusoidal signal, but only adjusts the peak voltage of the signal to meet the demand range of the subsequent module, and then transmits it to the peak sampling module. Sent to the peak sampling module, the peak sampling module keeps the output of the sinusoidal power signal when it reaches its peak value and transmits it to the analog-to-digital conversion calculation module to convert it into a digital signal and perform calculations. The power input module is a signal extraction module, a peak sampling module (PKD01 ) and other modules such as the analog-to-digital conversion c...

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Abstract

The invention relates to a sinusoidal electric quantity signal conversion and acquisition device which comprises a signal extraction module, a peak value sampling module (PKD01) and an analog-to-digital conversion computing module, wherein the signal extraction module extracts sinusoidal electric quantity signals to transmit to the peak value sampling module, and the peak value sampling module outputs the sinusoidal electric quantity signals when the sinusoidal electric quantity signals reach the peak value and transmits the sinusoidal electric quantity signals to the analog-to-digital conversion computing module to be converted into digital signals for being computed. Because 2 signal following and amplification to 3 signal rectification to 4 signal amplification to 5 signal filtration in the traditional electric quantity signal acquisition circuit is replaced by the peak value sampling module consisting of the PDK01, the invention reduces a plurality of complex analog circuits, avoids the influence of factors of supplied materials, environment and the like, and has the advantages of rapid response speed, wide transmission bands, good linearity, high linearity precision of peak value, and the like.

Description

technical field [0001] The invention relates to a sinusoidal power signal conversion and acquisition device. Background technique [0002] The voltage and current signal extraction circuit of traditional sinusoidal voltage and current detection equipment is quite complicated, and generally needs to go through: 1 signal extraction → 2 signal setting, amplification → 3 signal rectification → 4, signal amplification → 5 signal filtering → 6 analog-to-digital conversion calculation . In this process, many electronic components are used to improve the signal processing quality from 2 to 5, and the circuit design is quite complicated. The complexity of the circuit brings about the reliability guarantee of the circuit. One is the quality of incoming materials and processing quality, and the other is the environmental factor requirements when the circuit works. In order to shield the influence of these two aspects, it is necessary to improve the quality level and performance of in...

Claims

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Application Information

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IPC IPC(8): G01R19/25
Inventor 郭利陆曾德忠
Owner SHENZHEN CENTURY MAN COMMUNICATION EQUIPMENT CO LTD
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