hello Everyone !
I want to measure the speed and direction of the wind. I am interested in the product : 03002-L with the output signal of the wind speed sensor is AC sine-wave signal induced by rotating magnet on cup wheel shaft 100 mV peak-to-peak at 60 rpm; 6 V peak-to-peak at 3600 rpm and the wind direction is Precision conductive plastic potentiometer; 10 kohm resistance; 1.0% linearity; life expectancy of 50 million revolutions https://www.campbellsci.com/03002-wind-sentry-specifications
My idea is as follows:
to read the data (speed and direction) I do not use my logger that uses a microcontroller (dsPIC or Pic ......) but I do not know how to connect . Can you help me connect them? (diagram) and calibrate the measurement results .
my mail is : trinhdieupcb@gmail.com
Please advise me and send me all the documents related to my problem. Thank you verrymuch.
That sounds to be a really good voltage range to be used with a PIC microcontroller. All you need is a small voltage divider using which you’ll feed the analogue signal to the ADC of the PIC. In PIC you can write a small program that converts the input voltage to the required RPM value and logs it. I’d also advise making this an Human Interface Device to connect to PC whenever you want to read the logs or to save/clear them. The second choice is serial transmission.
* Last updated by: george82 on 4/22/2013 @ 1:48 PM *
Thank you for answering my questions!
read wind speed signals using PIC ADC.What about the wind direction with the output impedance is 10k, how to read ?