Digital Oscilloscope Using Personal Computer

Saidatul Asyikin, Mohamed (2005) Digital Oscilloscope Using Personal Computer. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Digital oscilloscope is a device that will take voltage-time measurement and very important device to the college students because this device is often needed to solve the kinds of problems presented in most electronic laboratories and at-home electronic projects. Nowadays, the traditional oscilloscope was built in a big size and high cost. It can only measured and display the signal but can't save or record the data. Therefore, this project can give an alternative to user to solve the problems as an oscilloscope and output the result to a personal computer (PC). The user will interface with device via a custom designed compatible application through the parallel port direct to the computer. The custom software will present the digitized voltage measurements to the user in the form of a real-time waveform display. This device also becoming more popular and demanding nowadays for its ability to save the data or waveforms for future reference or record. It has been divided into two parts. It contains a hardware design and development which includes probe and I/0 card interface circuit and also focus on programming and software development such as Visual Basic which displayed the data. This project describes the development of a low-cost, PC based digital oscilloscope.

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