Filtering signal to prevent flickering of the output.

Hello
I am using Labview 2010 and a usb 6008 DAQ to acquire two signals from a 555 timer circuits with LDRs and I am measuring them and comparing them. The idea is that when one of them is greater than the other I will generate an output. My problem is that even though I have allowed for +- 10 tolerence , I am still getting a flickering output once the treshold has been exceeded. Can someone give me any ideas because maybe I am approaching this completely the wrong way. The VI I have attached is using a simulate signal tool to represent my input signal.
Bye
Attachments:
Simulation Circuit for Testing Purposes Sensor Circuit.vi ‏124 KB

Hello Darren,
Is there any reason you haven't considered SoftMotion for your application? As far as exactly what you are trying to achieve with the timers Im still a bit lost as to what the problem is? What behavior are you seeing that is unexpected? So from what I gather is that you are measuring two frequencies and trying to establish which one is greater? I have written a VI to show you a simple yet effective way of doing just that. I have modeled it appropriately for the up and coming red nose day. Please see attached code. Enjoy!
Regards
Andrew George @ NI UK
Attachments:
Frequency Compare.vi ‏95 KB

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[Figure. 1] Frequency 8000 Hz / Cycle per Buffer = 8000 Result
[Figure. 2] Frequency 1000 Hz / Cycle per Buffer = 1000 Result
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