用于测量应用的低成本鲁棒数字信号分析仪(DSO)

2015 International Conference on Electrical, Electronics, Signals, Communication and Optimization (EESCO) Pub Date : 2015-09-10 DOI:10.1109/EESCO.2015.7253866

D. Sharma, K. Kishore, Shahid Malik, Dheeraj K. Singhal, Ashish Kumar, S. A. Akbar

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引用次数: 0

摘要

本文介绍了一种利用图形液晶显示器和Atmel公司的AVR微控制器开发低成本、便携式、学生专用的实时测量设备的方法，该设备可以用频率信息绘制输入的模拟信号波形。本便携式示波器采用单片机内置ADC对输入信号进行采样，并根据采样后的输入信号数值在图形化LCD上绘制相应像素的方法制成。微控制器每次接收一帧输入信号，并绘制所有像素对应于帧的每个样本。帧采样和绘制速率可以根据输入信号的频率变化来调整绘制信号的时间尺度。该设备可以绘制任何形状的信号，无论是正方形、正弦、三角形还是锯齿形，频率高达30 kHz，幅度为- 250V至+250V。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A low cost robust digital signal analyser (DSO) for measurement applications

This paper addresses a method to develop low cost, portable, student purpose, real time measuring device using a graphical liquid crystal display and Atmel's AVR microcontroller that plot the input analog signal waveform with frequency information. This portable oscilloscope made by applying an approach of sampling the input signal through inbuilt ADC of microcontroller and plotting corresponding pixels on graphical LCD according to the digital value of the sampled input signal. The microcontroller takes a frame of input signal at a time and plots all pixel corresponds to each sample of the frame. The frame sampling and plotting rate can be varied to adjust the time scale of the plotted signal which depends on frequency of the input signal. The device can plot signal of any shape either square, sinusoidal, triangular or saw-tooth up to 30 kHz frequency and having an amplitude −250V to +250V.

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来源期刊

2015 International Conference on Electrical, Electronics, Signals, Communication and Optimization (EESCO)

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