Flow Switch with Pulse

- M
- Mike Gonzalez
  
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posted
18 years ago

Sat, Apr 15, 2006 10:51 PM

I am designing an application for an embedded computer (PC/104) and I need to attach a FLOW switch w/ Pulse. It basical generates pulse output proportional to the rate of flow. One example is

formatting link

I have a Digital I/O board connected to my computer via RS232 and I can

read other types of inputs such as Start/stop switches, etc..

My question is, since the flow switch generates pulses so quick, is there any type of circuit that I can use to read this pulses other than

my I/O board? The reason I am asking is because I am afraid that becase these pulses can happen so quick that I will miss some reading them with this I/O board.

Thanks in advance, Miguel

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- T
- Thad Smith
  
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Vote on answer
posted
18 years ago

Sun, Apr 16, 2006 12:41 AM

Clock a counter with the pulse, then take a periodic reading of the counter. You may have a counter on-board, or be able to get a add-on board with counter. A 16-bit continuous counter will probably work well.

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Thad

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