Using the Barometric Pressure Sensor BARO-A-4V
Posted 16 June 2013 - 09:40 AM
I am doing some prototype work with your Barometric pressure sensor BARO-A-4V, for a data acquisition devise that I am building.
I am rather new to this type of work so if this question seem naÔve please forgive me.
I am a chemist by trade and a bit of a hack in electronics.
Based on the specs in the sensorís data sheet of nominal output voltage of 0.25 @ 600 mbar and 4.25 @ 1100 mbar I set up a linearization equation from those two points to convert output voltage to pressure: mbar = 0.125(Vout)+0.5688
However the pressure readings I get seem to be low for example I get 988 mbar and expect 1010 mbar.
I am driving the sensor with +5V input voltage.
Am I over looking something?
Do I need to compensate for input voltage or calibrate the sensor against a known pressure to be more accurate?
Please let me know!
Posted 17 June 2013 - 09:13 AM
Posted 19 June 2013 - 10:26 AM
Posted 20 June 2013 - 11:40 AM
Posted 20 June 2013 - 12:44 PM
this project looks like you are getting some good results and is quite interesting. We can't wait to see your results/finished project.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users