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Lie detector, also called polygraph, instrument for recording physiological phenomena such as blood pressure, pulse rate, and respiration of a human subject as he answers questions put to him by an operator; these data are then used as the basis for making a judgment as to whether or not the subject is lying.
Subjects' respiration and pulse rate data were registered by means of respiration belt and pulse sensor.
A polygraph (often and incorrectly called a 'lie detector') is a machine which plots in real time several human biological signals such as pulse rate, galvanic skin resistance (GSR), blood pressure, and breathing rate.
The pulse rate gets raised by the pulse.
(His pulse rate — 72 — never changes).
Pulse rate and blood pressure go up.
The maximum rated slew pulse rate of the motor is 560 pulses per second (1.78 milliseconds).
His resting pulse rate is in the 40's.
But its pulse rate stays well below normal (2 55).
He has a low pulse rate (triathletes are obsessed with their pulse rates) and wears Mizuno running shoes.
The pulse rate jumps by 30% or more.
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