The principle of pulse width modulation. (a) Example circuit. (b) Time constant small compared to ‘on’ time. (c) Time constant large compared to ‘on’ time, narrow pulse. (d) Time constant large compared to ‘on’ time, wide pulse The voltage–current relationship in an inductor is...
The pulse width t and spectrum analyzer bandwidth B are independent of each other. Any values are possible. Suppose a 10 MHz bandwidth is used to measure a 1 ms pulse width. In this case, tB = 10, and it would appear that the pulse-modulated spectrum is larger than the unmodulated car...
1.the state or quality of being ample, esp. as to breadth or width; largeness. 2.large or full measure; abundance. 3.mental range, scope, or capacity. 4.the absolute value of the maximum displacement from a zero value during one period of an oscillation. ...
Pulse-width dependence on intracavity bandwidth in synchronously mode-locked cw dye lasers We present a model of the synchronously mode‐locked cw dye laser which predicts a square root dependence of dye pulse width on pump pulse width and intrac... CP Ausschnitt,RK Jain - 《Applied Physics ...
Hopefully you will have seen from the above waveforms that the width of the on pulse is varied with respect to the off pulse. To give it it's proper namePULSE WIDTH MODULATIONorPWMfor short. Notes: Have a look at the waveforms again and note the vertical time reference lines 't'and '...
1)pulse width脉宽 1.Nanosecond pulsed generator with regulable pulse width;脉宽可调纳秒脉冲产生器 2.This paper researches how to influence length and width of deposit layer when changing laser pulse width,laser repetitive frequency,powder feeding rate and laser scanning velocity.进行了激光熔化沉积成形...
Pulse compression allows a radar to utilize a long pulse to achieve a large radiated energy, but with the range resolution of a short pulse of wide bandwidth. It achieves this by modulating the long pulse of width T to obtain a bandwidth B >> 1/T. The received signal is passed through...
The relationship of the spectral width and DW is slightly different for the two approaches: (3.9)Simultaneous acquisition:DW=1SW,and sequential acquisition:DW=2SW. The number of time domain data points (TD) means that the time over which data are collected (termed the acquisition time...
Fig. 16.Effect of LBW energy parameters and, as a result, the overlapping factor on weld width, hydrogen content and absorption rate (the E110 alloy plates with a thickness of 0.5 mm, butt joints, the laser beam diameter of 0.95 mm, summarized from Refs. [96,99]): a – pulse duratio...
1.A method comprising:for a plurality of pixel locations of an electro-optic layer of an optical write valve and across each of a plurality of consecutive frames:modulating a set of pixel data bits across a first and a second pulse width period of the frame, wherein the first and second...