help: trigger configuration

[yonderstar]

hi the world

                *1  
      
                *2 

                *3

a falling body will pass through the three points noted above
each of the points is attatched with a sensor
the first two together measure speed [S/(t1-t2)]and the last one measures acceleration
the ideal is to start daq when the falling body pass point 1
and then stops at point 2 , while triggering  the acceleration  daq at point 3

can i make all these configurations in MAX ?
i've tried a few times , making two analogue triggers for mounting and falling edge respectively
but MAX complains that i can't have two analogue  triggers in the same time ?
what's the problem here ?

what else should i do ?

thanks in advance

[daviddelebecque]

Hi,

Which board do you use and the associated driver (daq trad or daqmx)? Will you use a NI programmation environment after or not?

Regards

David D.

Application Engineer

NI France

[yonderstar]

thanks for the reply

well i'm using labview 7.1 with ni-daqmx 7.3 and max

i've created three measurements in one task

when i configure the triggering conditions for them in max

i found that the three must share the same timing and so the same trigger

anyway i think ive overcome the trigger problem but some other new ones come up and make my final measurement results not so satisfying.

i'll write a new article later to present the system(in fact a very basic one for most people)

u know how a layman can make some uncontious mistakes

thanks again