Anyone know of a write-up on converting the RPM signal to a voltage?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by scartail &raquo;</TD></TR><TR><TD CLASS="quote">Anyone know of a write-up on converting the RPM signal to a voltage?</TD></TR></TABLE>

Anyone?

So far I have found that a LM2907 chip will convert frequency to a voltage... However, it is SMT. I've gota do more reading on it.

I have a moates burner... is there a way to get a program to be written that will accomplish something like this?

 

Buy a cheap tachometer. the board that runs the gage converters the pulse into voltage. On the tach i used it was aroun 0 to 3 v. I was going to use one to run a industrial PLC.


Modified by atcrx at 4:07 PM 6/10/2005

 

i tried it with a cheapo gauge.. but I get a mV reading... I dont' know how to get it up to the V magnitude...

 

Use an op-amp to boost the signal.

Just Google for non-inverting op-amp configuration.

 

cool.. i'll look into it... thanks.