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What Is the Potential of Oscilloscopes in Electrical Testing?

Extreme closeup of waveform on screen of digital oscilloscope

The oscilloscope has been a shining example of innovation in electrical testing disciplines for more than 50 years. It has remained a vital tool for scientists, engineers, and professionals working in fields like aerospace and defense ever since it was first developed. In contrast to conventional meters, which only display numerical data, an oscilloscope shows test signals visually, revealing complex characteristics including amplitudes, frequencies, forms, and distortions. This article explores the oscilloscope’s historical significance, development, and essential function in contemporary testing techniques.

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Meter Sensitivity and Accuracy

Every meter coil has a certain amount of dc resistance. The amount of resistance depends upon the number of turns on the coil and the size of the wire used to wind the coil. The strength of the magnetic field about a coil increases as the number of turns of the coil increases. Therefore, if more windings are placed on a meter coil, a small current can create a magnetic field strong enough to cause the coil to deflect full scale.

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