Sensor Signal Conversion

[ArtXen]

Greetings,
I am trying to make a circuit that converts an analog pulse 0-4.5 volts sinusoidal (0- 3600 pulses per minute) to a voltage 0- x signal. Take that voltage signal and use that to proportionally amplify a 0-2.5volt signal to 0-5 volts.

Could anyone recommend a circuit to accomplish this?

Thanks,
Art K.

 

[MikeHalloran]

By the time you get through buying and tuning all the analog components, it will be cheaper to use a microntroller with two analog inputs and one analog output.

For the 0-3600 ppm input, since all you care about is the edge rate, you could just use a digital input for that instead of one of the analog inputs. If the signal is at all noisy, you may need to add a Schmitt trigger or debounce it in software.



Mike Halloran
Pembroke Pines, FL, USA

 

[ArtXen]

Mike,
Thanks for the reply. I am an ee nube. Could you please recommend an ots board I could connect to and program with this capability?

Art Koral

 

[MikeHalloran]

Maybe if you tell us a little about what you _do_ know, the local propellerheads will suggest something.



Mike Halloran
Pembroke Pines, FL, USA

 

[ArtXen]

I am a fairly savy aerospace and mechanical engineer. I can program and learn languages as required. Understand basic circuits and power electronics. Have worked on plcs to a very limited extent.

 

[Compositepro]

You need a frequency to voltage converter.This device is close to what you want:

http://www.redlion.net/products/groups/archive/pra/docs/12012.pdf

 

[blacksea]

Further previous post: but if your sine signal change amplitude with constanr frequency, than you need peak detector.