Canon Mp145 Error 5010

(31 º) - 17/10/08

Once the altimeter , we set out to calibrate it.
To calibrate the circuit we had simulate pressure levels for which happen once the rocket in flight, that is why we use a bell to create empty and generate the possible values of pressure. The original idea is based on the method found on page of William Barefoot . This is a completely sealed bottle, except for two holes through which pass hoses, which suck the air to simulate different levels of pressure. To suck, the water breaks through the hose and using a meter, determine the height reached by water. The system used is quite similar to that proposed by Barefoot, only instead of using a bottle and an altimeter under test, use a vacuum chamber and the altimeter done for us.
Based on the levels of water present, using a conversion table by William Barefoot where set a height for each level of water. This is the table of equivalences of William Barefoot:
The pressure sensor is responsible for assigning a value of tension to a certain value of atmospheric pressure. The circuit consisted of a resistance that were fed back to the amplifier reaches the 5v output, but when we practice we got not or 4v and after analyze the possible values \u200b\u200band test with a resistance that saturated the track, we reach an output of 4.70 v.