2003•Journal of Electrical & Electronic Engineering EducationRequires access

An Oscilloscope's Interface for the MCU-aided Experimental Apparatus

Xiao Wang

Abstract

A practical oscilloscopes interface circuit for the MCU aided experimental apparatus is introduced in this paper. In order to get stable display without twinkle for adapting to the features of oscilloscope, a D/A converter circuit is used to supply the acquired signal which frequency must be higher than 200Hz to the Y input of the oscilloscope, meanwhile an internal and an external synchronous signals are also generated by combining the hardware with software. For users convenience and to make more accuracy testing data, the electronic marks for Y and X axes are established. Finally, a RL circuit transient experiment running by this apparatus, is given as an example.

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Key concepts: Oscilloscope, Digital storage oscilloscope, Microcontroller, Interface (matter), Computer hardware, Computer science, SIGNAL (programming language), Transient (computer programming)