For example, PET-7 generates a pulse with a gain of 1 [micro]s and a duration of 256 [micro]s or ZED-meter--a rectangular pulse
duration 1.4 [micro]s.
The system contains an excitation channel, which is able to generate either single rectangular pulse
or more complex rectangular waveform.
At a similar strain rate, the specimen under rectangular pulse
absorbed more energy compared with that under the half-sine stress pulse.
Consider that a 0.95 ns rectangular pulse
centered at 10 GHz is incident on a 20-element linear array with a 25 dB Taylor taper.
Xi, "Damage boundary of a packaging system under rectangular pulse
excitation," Packaging Technology and Science, vol.
A single rectangular pulse
of 1 m/s over a period of 2 ms (Reynolds number = 4000) as shown in Figure 3 was applied at the tube inlet to serve as the driving force to produce a propagating wave.
Where [DELTA] defines the shift of rectangular pulse
center from the start of revolution.
If we limit the interest case to single rectangular pulse
, one can obtain a detection effect by actually detecting the sharp pulse edges or by spectral decomposition of the pulse itself, when the edges have relatively slow rise and fall times.
Modified Bartlett Lewis Rectangular Pulse
Assuming the system was excited by rectangular pulse
, the three-dimensional shock spectrum and the damage boundary surface were obtained by Wang and Chen [24-26].
2): Gaussian pulse A exp(- [(t - [[tau].sub.0]).sup.2]/2[[tau].sup.2.sub.w]), one period of the sinusoid A sin (2[pi]/[[tau].sub.p](t - [[tau].sub.0] + [[tau].sub.p]/2))[[eta](t - [[tau].sub.0] + [[tau].sub.p]/2) - [eta](t - [[tau].sub.0] - [[tau].sub.p]/2)], rectangular pulse
A[[eta](t - [[tau].sub.0] + [[tau].sub.p]/2) - [eta](t - [[tau].sub.0] - [[tau].sub.p]/2)] and Laguerre pulse [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII].