pulse duration


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Related to pulse duration: Pulse duration modulation

pulse duration

[′pəls du̇′rā·shən]
(communications)
The time interval between the first and last instants at which the instantaneous amplitude reaches a stated fraction of the peak pulse amplitude. Also known as pulse length; pulse width (both deprecated usages).

pulse duration

pulse duration
The nominal duration of a standard pulse, which is the time interval between the half-amplitude points on the rise and the decay points of the curve. It is the measurement of the pulse transmission time in microseconds (i.e., the time the radar's transmitter is energized during each cycle). For the pulses of other shapes, the points on the curve must be stated. Also known as a pulse length or a pulse width.
References in periodicals archive ?
Parameter Level 1 Level 2 Level 3 1 Pulse duration ([MICRO]S) 0.3 0.5 0.7 2 Pulse interval ([MICRO]S) 5 7 9 3 Servo voltage (V) 15 25 35 4 Ignition pulse current (Amp) 8 12 16 TABLE 3 Machining parameter (according to [L.sub.9][3.sup.4] orthogonal array).
Caption: Figure 6: Dependencies of the nanocrystals' size (a) and partial volume of the crystalline phase (b) on the power density of laser irradiation with 10 ns pulse duration for sample #7.
(18) Laser application is performed at pulse durations of 100-200 ms, spot size of 500 [micro]m, and power ranging between 100 and 750 mW to produce gray-white burns.
Pulse duration is selectable from 40 ms, 100 ms, 200 ms, 350 ms, and 400 ms while both output resistance and output voltage are programmable in small increments.
The 5 points consisted of 2 constant pulse durations (100 and 500 ps) and 3 pulse amplitudes to span the range between threshold and maximum comfort level.
Tensile strengths and elongations of control specimens (grades 2 and 3) and the specimens laser-treated with various parameters (current, spot diameter, and pulse duration) for laser emission are presented in Figure 3 through Figure 6.
where [[gamma].sub.1] and [[gamma].sub.2] are the dimensionless displacements, respectively, [[omega].sub.1] = [square root of [k.sub.1]/[m.sub.1]] and [[omega].sub.2] = [square root of 2[k.sub.2]/[m.sub.2]] are circular frequency parameters of the system, T = 1/[[omega].sub.2] is taken as the period parameter of the system, [tau] is the dimensionless pulse time, [[tau].sub.0] is the dimensionless pulse duration, [[lambda].sub.1] is frequency parameter ratio of system, and [[lambda].sub.2] is mass ratio of system.
These experimental results showed that the load amplitude does not affect the longitudinal pulse duration [11].
The pulse duration is 78 ps and the pulse separation between the neighboring solitons is 28.3 ps.
Fluence and pulse duration of IPL was selected according to the patient's Fitzpatrick skin type.
With the leap in laser technology from pulse duration measured in nanoseconds (1 billionth of a second) to one measured in femtoseconds (1 quadrillionth of a second) new vistas opened in the practice of cataract surgery.
1) Identifying the right pulse duration for this type of processing,