Best barometric sensor

Other Hardware Sensors
1

Hi everyone,

I'm looking for a very accurate barometric sensor to estimate vertical distance. I used BMP280 but the result was bad. Do you know a better sensor.

Thanks.

2

That sensor is accurate. better than 1m (or 10) isn't possible without including a number of other factors:

  • gravity in your area ( where I live its very close to 9.82)
  • temperature (and if height isnt condtant.. the full temp. profile)
  • very still air surrounding the sensor - any wind will affect the reading

What your sensor CAN do, is tracking changes - with very good precistion

3

Thanks for your answer.

But I looking for an accuracy of 10 cm. And I'm quite sure that is impossible with a barometric sensor.

Have you any ideas to estimate vertical distance with a very high accuracy ??

Thanks again !

4

laser based distance sensor ? to get height above ground.
That precision will require expensive equitpent.. most likely more than a singe sensor..

5

I use a ms5611 in an variometer for my rc gliders.

They claim to have an resolution of 10 cm, and there is a Arduino library for it.

6

The BMP280 claims very good precisions.
If you read the datasheet, you will see that there are several modes of operation (weather monitoring, indoor navigation, gaming, etc...)

You have to set the parameters accordingly !

Did you do that ?

Cheers.

7

The SCP1000 was great, but discontinued now... I believe the BMP family are supposed to be better,
did you enable full precision (you can generally trade speed for precision with these dual-slope
integrating sensors).