The test also will help your doctor find out if there are: 1  Problems with the outer lining of your heart (the pericardium). 2  Problems with the large blood vessels that enter and leave the heart. 3  Blood clots in the chambers of your heart. 4  Abnormal holes between the chambers of the heart.
Part of the Electronics glossary: An oscilloscope is a laboratory instrument commonly used to display and analyze the waveform of electronic signals. In effect, the device draws a graph of the instantaneous signal voltage as a function of time.
This program shows a signal generator, oscilloscope and loudspeaker. The signal generator can produce waves with various amplitudes and frequencies in the audio range. The oscilloscope shows the shape of these waves and has a scale with time-base control that allows you to measure the period and frequency of the waves.his program shows a signal generator, oscilloscope and loudspeaker. The signal generator can produce waves with various amplitudes and frequencies in the audio range. The oscilloscope shows the shape of these waves and has a scale with time-base control that allows you to measure the period and frequency of the waves.