Oscilloscope vs. Oscillograph — What's the Difference?

An oscilloscope, previously called an oscillograph, and informally known as a scope or o-scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscope), is a type of electronic test instrument that graphically displays varying signal voltages, usually as a calibrated two-dimensional plot of one or more signals as a function of time. The displayed waveform can then be analyzed for properties such as amplitude, frequency, rise time, time interval, distortion, and others.

A device that records oscillations, as of an electric current and voltage.

An electronic instrument that produces an instantaneous trace, displayed on a screen, that corresponds to oscillations of voltage and current.

An instrument for measuring alternating or varying electric current in terms of current and voltage; an oscilloscope.

An electronic measuring instrument that creates a visible two-dimensional graph, on a screen, of one or more continuously varying voltages or currents.

A device for making a record of the wave forms of fluctuating .

An electronic measuring instrument which provides a visual representation of the time variation of electrical quantities, such as voltage or current. It may be used to measure the shape of a voltage pulse or the frequency of an oscillating voltage. It can also be used to measure properties of other physical variables, such as sound or light intensity, if they can be translated into electrical voltage or current.

An apparatus for recording or indicating alternating-current wave forms or other electrical oscillations, especially of voltages or currents; it usually consists of a galvanometer with strong field, in which the mass of the moving part is very small and frequency of vibration very high.

Electronic equipment that provides visual images of varying electrical quantities

A device for making a record of the wave forms of fluctuating voltages or currents