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 ?
5(b) shows the PWM voltage and the current data acquired from the oscilloscope at a 200 Hz PWM frequency and 50% duty cycle.
Without the loss of generality, the data available to understand the duty cycle include hydraulic actuator (cylinder or motor) position, pressures on each side (head side and rod side) and the pilot pressure signal generated from an user sending to a directional control valve.
04Hz frequency at an 80% duty cycle (after the temperature cycles had had time to stabilize).
While most existing solutions for fixing the switching frequency have worked with varying the hysteresis window when the duty cycle changes, the approach presented here fixes the hysteresis window and generates a compensating gain based on the variation in frequency.
3, during the current algorithm perturbation cycle/iteration, the power converter duty cycle and load current are denoted by D(k) and I (k), respectively.
A count (ON period time) is loaded onto one of the General Purpose Registers (GPR) which is also the Duty Cycle Register.
If engineers specify a 10 percent current balance with an inductor DC resistance of 1 m[ohm], then the controller must adjust the duty cycle for a difference of 2.
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.
Motors equipped with the Diamond option come with a lifetime warranty based upon application duty cycle calculations.
An X-Band, 50 kW Peak Power, 7 Percent Duty Cycle Solid-State Transmitter Using a PPM-Coupled Cavity TWT
The measurements include a spectral analysis of jitter components, along with a direct measure of duty cycle dependent jitter.