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More services...Multi-pass continuous laser beam scan
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4 Replies
Last post: October 5, 2012 6:45am UTC
October 4, 2012 11:10am UTC
Multi-pass continuous laser beam scan
Hi ,
i have one basic question about Multi-pass continuous laser beam scan . i have moved laser beam (Gaussian)with same velocity in y-direction on plate from one end to other end. it was taking 3 sec. then, i want to move heat source from (3.2 sec) original position. Is this possible in comsol GUI? or We should use any script language?
can we use any function to obtain the second time scan?
i used the following heat source for first scan
500[MW/m^3]*an1(sys2.r[1/m])
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October 4, 2012 11:57am UTC in response to uday
Re: Multi-pass continuous laser beam scan
Hi
how do you scan w.r.t. to time ? there were a few threads already discussing raster scanning and functions to provide the trajectories ;)
Do not forget that you make discontinuities when you make sudden jumps, this gives some issues often for the solver to converge
--
Good luck
Ivar
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October 4, 2012 12:20pm UTC in response to Ivar Kjelberg
Re: Multi-pass continuous laser beam scan
Hi ivar,
thank you for your quick reply. i want to move laser beam w.r.t time. i have used (V*t) this expression. V-is a speed of laser beam. i have used cylinderical co-ordinates to movement.but , i could not get the second pass.
How can i get second pass?
then,i want to move the spot w.r.t time and space?
how can acheive?
can you give any example (time and space dependent)?
sorry for the lot of questions
thank you ivar...
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October 4, 2012 4:45pm UTC in response to uday
Re: Multi-pass continuous laser beam scan
define to different functions, one for each type of movement. Then combine them through boolean operators: f1*(t<t1)+f2*(t>t2)
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October 5, 2012 6:45am UTC in response to Alexander Kuznetsov
Re: Multi-pass continuous laser beam scan
Hi Alex,
thank you for your response. but i could not understand. can you explain more....where can i find boolean operator..
i want to pass the (moving heat flux) beam 3 times in same path.can i use boolean operator..
can you help me?
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