storage oscilloscope

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storage oscilloscope An instrument that is used to measure fast nonrepetitive signals. It does this by capturing the signal on demand and continuing to display it until reset. This can be achieved in two ways: a digital storage oscilloscope samples the incoming signal, stores these samples, and displays them; other storage oscilloscopes use a special storage cathode-ray tube that retains the image by mapping it as a charge pattern on an electrode behind the screen; the pattern then modulates the electron beam to give a picture of the captured signal.