SignalExpress
Simultaneously Measurement
Hi My,
Most of the LabVIEW SignalExpress steps have a Tab named "Execution Control", You can use this to control how the steps execute.
For data acquisition task, you can also select here if you want to execute them in parallel or series by selecting the following drop down box:
By default, it should do the measurements you talk about in parallel and you should see the "jagged line" you mention or the straight line if they are sequential like the following picture:
This preview might be old stuff for you but it is a good starting point. The other thing to consider is if the principle for measuring frequency. Frequency is measured by waiting two rising edges or two falling edges. Best case scenario is that both started just before the first rising edge and therefore it should finish in about 2 seconds. Worst case is that it missed the rising edge, which means it has not even count the first one. This will take little under 4 seconds.
If you place a third counter measurement, you should be able to see that the time is not increasing from the one you experienced before. This should hold for all 8 counters.
Hope this helps,
Most of the LabVIEW SignalExpress steps have a Tab named "Execution Control", You can use this to control how the steps execute.
For data acquisition task, you can also select here if you want to execute them in parallel or series by selecting the following drop down box:
By default, it should do the measurements you talk about in parallel and you should see the "jagged line" you mention or the straight line if they are sequential like the following picture:
This preview might be old stuff for you but it is a good starting point. The other thing to consider is if the principle for measuring frequency. Frequency is measured by waiting two rising edges or two falling edges. Best case scenario is that both started just before the first rising edge and therefore it should finish in about 2 seconds. Worst case is that it missed the rising edge, which means it has not even count the first one. This will take little under 4 seconds.
If you place a third counter measurement, you should be able to see that the time is not increasing from the one you experienced before. This should hold for all 8 counters.
Hope this helps,
Message Edited by Yardov on 08-03-2007 02:39 PM
