Image acquisition using multiple timers.

Hello,

I am working with MATLAB for continuous aquisition of images of a sedimentation system. As I need to capture the sedimentation rates, I need for the images to be captured at different time rates. I wondered whether I could use multiple timers in the same programme which work at different time rates to capture the images. How do I put successive timers in the same program? Any help in this regard will be appreciated. Thank you!!

Answer 1

[Walter Roberson]

Gerd's answer looks workable. I wonder, though, why you are using multiple timers for that case? If you only need one timer at a time, why not use a single timer and at each point set() its timeout as appropriate? There are various different ways you can keep track of which "state" you are in.

Answer 2

[Gerd]

Hi Akshay,

you can generate multiple timers in Matlab.

timer1=timer;
timer2=timer;

with set method you can set the approxiate parameters to the different timers. You can use different callback function which are executed when the timer occurs.

Gerd

Answer 3

[Akshay Mhetras]

I put three timers at different periods (rates). How do I start the process at once, so that once timer1 is over, timer2 starts and so on, as I need to automate the whole image acquisition process...

[Gerd]

You can use the timer callback function.

start(timer1)

callback function timer1:

stop(timer1)

start(timer2)

and so on