duty cycle

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duty cycle

the percentage of time that ultrasound is being generated (pulse duration) over one pulse period. Also called duty factor, mark:space ratio.

du·ty cy·cle

(ti:ttot) (dū'tē sī'kĕl)
The ratio of inspiratory (ti) time to total-breathing-cycle time (ttot).

duty cycle

During chest compressions of a victim of cardiac arrest, the relative amount of time that the chest is compressed compared to the time that the chest is allowed to recoil to its fully inflated position. A cycle of 50% occurs when chest compression equals chest recoil.
See also: cycle
References in periodicals archive ?
With internal CMOS power FETs, the device can operate at up to 100% duty ratio allowing for output voltage range from 0.
Fast PWM converter transient response delivers a high-bandwidth error amplifier and a full zero percent to one hundred percent duty ratio.
A method called Random PWM (RPWM) is used to spread the switching frequency by randomly varying the frequency and duty ratio, but it is somewhat complex to generate the random switching phenomenon.
Comparing constructs of the normal, "wild-type" protein to the R156W mutant, they examined the two proteins' kinetics and motility and discovered the mutant has a reduced sensitivity to mechanical loads and a lower duty ratio, meaning it spends less time attached to actin filaments.
SII's S-5855A begins to decrease the duty ratio of PWM signal output when the temperature exceeds the specified value.
In these control strategies, the capacitor voltage is controlled by the shoot-through duty ratio and the output voltage is controlled by the modulation index, respectively.
The regulatory duty ratio presently levied on export of steamed bones and crushed bones at the mate of 20 per cent and 15 per cent is being reduced to 10 per cent and 5 per cent respectively.
A PWM speed control pin provides enhanced motor speed control by varying the duty ratio of the PWM signal, in addition to the supply voltage.
Step 1: Initialize the fitness value of duty ratio, for each particle between the range of (0 < d < 1) phase angle range for initialize 0.
This can be accomplished through an externally programmed control signal, with a duty ratio of 0-100 percent and a frequency of a few kilohertz.