Calibration of the pitot tube and amplifier stage (sensor MPX2010)

Frank July 7, 2011 at 2:07pm

I did the same using the speedway as wind tunnel with an arm out of the car with a stand to take sensor out of the turbulence in a dead wind day :D

similar curve results with 5004 sensor, up to a value it sense very little, than it is almost linear.

now can't remember data but if someone needs it I can provide the excel graph.

Armando July 5, 2011 at 12:36pm

Thanks for your comments

All comments are welcome

Armando July 5, 2011 at 12:28pm

The MPX2010 Datasheet .

Voltage Output versus Applied Differential Pressure

The output voltage of the differential or gauge sensor

increases with increasing pressure applied to the pressure

side (P1) relative to the vacuum side (P2). Similarly, output

voltage increases as increasing vacuum is applied to the

vacuum side (P2) relative to the pressure side (P1).

Armando July 5, 2011 at 12:23pm

Hamadivo : I used the formulas of the thesis

Armando July 5, 2011 at 12:21pm

Alex Lee, the Wind Tunnel Only start from 8m/s to 25 m/s

Armando July 5, 2011 at 12:14pm

s

Armando July 5, 2011 at 12:07pm

I reproduced the experiment of this thesis (Speed Sensor)

Page 144 to 155.

Coptaire July 5, 2011 at 7:35am

The knee seems to indicate the pressure threshold where the air through the pinhole starts to excite the sensor.

Also, this barometric sensor is measuring pressure (not airspeed), which is related to the square of speed.

It is not really a pitot, as the total pressure is measured here, and not a differential one, like in a pitot.

hamadivo July 5, 2011 at 4:47am

Hi,

what kind of ADC converter is used?

Thanks.

Yves Gohy July 4, 2011 at 10:49pm

Hello, do you make something like this?

Sorry, it's in french.

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