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 ?
FMCSA's field study collected fatigue measurements from 106 truck drivers during two duty cycles that included two restart breaks.
Compared with alternative machines, these new models benefit from a 70% smaller footprint, an 80% lower weight and the ability to operate at higher duty cycles: at a 100% duty cycle both machines deliver 300A at 32V; while the output can be maintained at 400A/36V by the 4004i and 5004i machines operating at 60% and 80% duty cycles, respectively.
The duty cycles of these PWM are proportional to entered speed.
S3 -- Intermittent periodic duty type without starting: A sequence of similar duty cycles at constant load separated by no-load--zero spindle speed--conditions.
Little can be done to control these temperatures, Winkle admits, but it's for this reason that the company recommends purchasing magnets designed for hot surface work and proper duty cycles.
However, in this new era of SAN-based backup, automated tape libraries and the underlying tape drive technology are facing the challenge of dramatically higher duty cycles and rigid uptime and availability requirements.
The HybriDrive parallel system is designed to address the needs of vehicles with duty cycles that require higher operating speeds and less frequent stops.
Compared with alternative machines, these new models benefit from a 70% smaller footprint, an 80% lower weight and the ability to operate at higher duty cycles: at a 100% duty cycle both machines deliver 300A at 32V while the output can be maintained at 400A/36V by the 4004i and 5004i machines operating at 60 and 80% duty cycles, respectively.
The performance of the card, is tested for various duty cycles and for different RPM's.
With the duty cycles that are built into the scrap business, they felt that they could no longer operate converted or modified excavators.
Offering a 30MB/sec native data transfer (up to 252GB/hour, compressed), 200GB (native) cartridge capacity, 70% tape motion duty cycles, the T9940B presents exceptional data movement and significantly lowered failure rates.
Kluemper and his crew arrived with Spectrum Expert and saw duty cycles in the 70s with peaks of 100.