Rise time of a half sine pulse
Rise time of a half sine pulse
(OP)
Hi,
Not sure if this is the correct place to ask this but here goes.
I am trying to work out a equation for calculating the rise time of a half sine, assuming peak and period is known and working on 10-90%
Any takers
Not sure if this is the correct place to ask this but here goes.
I am trying to work out a equation for calculating the rise time of a half sine, assuming peak and period is known and working on 10-90%
Any takers





RE: Rise time of a half sine pulse
You can obviously figure out the rise time of a half sin pulse if you know the frequency.
I expect in your case you are using a half sin pulse of acceleration.
The integral under the half sin pulse of acceleration must be equal to the change in velocity.
Let's say the pulse is Amax*sin(2*Pi*t/T)
where T is twice the length of the pulse
The integral from t=0 to T/2 is
T*Amax/Pi
T and Amax must satisfy:
V0 = T*Amax/Pi
Again the time of the peak (if that's what you're calling rise time) would be T/2
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RE: Rise time of a half sine pulse
"the time of the peak (if that's what you're calling rise time) would be T/4"
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RE: Rise time of a half sine pulse
The 10-90% I referred to is the time taken for the amplitude to rise from 10% to 90% of the peak amplitude (at least that is how it is defined in electronics)
I guess it is the same when talking about acceleration pulses?
I can calculate this graphically, but thought there must be a formula
RE: Rise time of a half sine pulse
What is the asin(0.1) ?
what is asin (0.9) ?
Cheers
Greg Locock
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RE: Rise time of a half sine pulse
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