NI:
- Application: My application employs a silicon photomultiplier (low light) detector that outputs brief (order of nsec) and low amplitude (5mV-1.5V) analog pulses. Please note that I can add an RC-circuit to widen the duration of the pulses if necessary (ie: don't worry about that). I need to use an analog trigger to count these pulses. I think that this program called "DAQmx: Counting Non-TTL Pulses with Multifunction Board and Labview" nearly fits my project description.
- Questions: Should I use the APFI0 or an analog input channel to acquire this signal? What are the functional differences in these channels? What is the input range of the APFI0 (+/- 10V?) and can it be adjusted to +/- 2V? I WOULD just try both and see which one works, but my boss wanted to save money by buying the 64-pin backshell to create a custom 64 pin cable (solder the center conductor of a coaxial cable directly to the pin of the custom cable kit). Which channel provides the most flexible configuration? Please note that this is a ground-referenced signal.
- Equipment: M-series PCI-6250 DAQ, LabView 7.1, Windows XP, 64-pin custom cable backshell, RG-58C coaxial cable
thank you,
-Dave
