A polygraph
You are measuring heart rate.
The spaces between pulsations are called diastole. This is the phase of the cardiac cycle when the heart muscle relaxes and fills with blood before it contracts again during systole.
Artery
Andre Hastoy has written: 'Pulsations des Jours'
Pressure pulsations
While rectification pulsations are caused due to ac not being converted to dc perfectly. This causes hum (low frequency humming noise). To smooth these pulsations filters are used. Noise is an unwanted signal in the communication system.
Betelgeuse, a red supergiant star in the constellation Orion, has an approximate diameter of about 1,000 times that of the Sun, which translates to roughly 1.4 billion kilometers (or about 870 million miles). This immense size makes it one of the largest stars visible to the naked eye. Its actual size can vary due to pulsations, as it is a variable star.
Henry P. Pelletier has written: 'Nature's endless pulsations' -- subject(s): Nature, Poetry
Pulse is short for pulsations which is the word used to describe the feeling of a heartbeat the definition for pulsation: the rhythmic contraction and expansion of the arteries with each beat of the heart.
using a rectifier, which converts the AC signal into a pulsating DC signal, and then using a filter to smooth out the pulsations in the signal, resulting in a steady DC output.
An eye for an eye