Analog High Frequency (HF)-based pulse generators are less tunable for the pulse
width and pulse repetition interval (PRI); these generators also exhibit reduced variation according to temperature.
Such an excursion--for instance, at an optical fiber's glass-air boundary--costs the pulse
the time required to cross and recross that border.
As the gap decreases, the magnitude of the pressure pulse increases, but the pulse
shape remains constant.
This gives a double peak in the pulse
height distribution (Fig.
The more common approach of PPM, for instance, might assign a digital representation of 0 or 1 to the transmitted and received pulse based on where, in time, the pulse
It also must be remembered that a majority of survey respondents for this edition of the Pulse
classified themselves as "property managers.
of water is triggered by the hot melt raising the cavity temperature near a thermistor beyond a threshold set for the type of plastic being molded.
Influenced by that radiation pattern, the rubidium atoms behaved "like a stack of mirrors" that bounced the pulse
back and forth for tens of microseconds, notes Marlan O.
For longer duration pulses, the device does not switch because the magnetization rotates back to its initial direction while the pulse
What was happening, they realized, was that electrons energized by the pulse
were knocking other electrons loose, and those, in turn, were quickly freeing up yet more electrons.
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If that backward velocity equals the light pulse's forward velocity, the pulse
will stand still.
Even accounting for gaps in the fossil record, which can make appearances seem to cluster in time, Vrba finds that the pulse
PG0426NL series performs without degradation in applications with elevated ambient and inductor temperatures.
They can then guide a second laser pulse in the opposite direction down this tube of expanding hot plasma, enabling the pulse
to travel a much longer distance through the gas than it would normally go by itself.