A device which produces a visual record of an electrical current on a screen using a cathode ray tube. It is used in the testing of electronic equipment and in measuring electrical impulses of the heart or the brain.
Electronic instrument with a television-like screen that allows for the visual display of electronic signals.
A cathode-ray tube designed to display electronically a wave form corresponding to the electrical data fed into it. Oscilloscopes are used to provide a continuous record of many different measurements, such as the activity of the heart and brain.
An instrument that makes visible the presence, nature, and form of oscillations or irregularities of an electric current.
An instrument that captures and records the patterns of wavelengths and frequencies, depicting their design.