PM2.5 Air Quality Sensor Moderators: adafruit_support_bill, adafruit

[CamilleT]

Hi all,
within my internship i have to analyse particular matter measurement data. They use the PM2.5 Air Quality Sensor for the measurment. But to analyse the measurement error of the data i need more informations about the measurement principle and how the microprocessor calculates the measurement result. Does a mathematic formula exist?
Moreover i need to know the temperature sensitivity of the sensor. Is the temperature already calculated in the result?
Do other cross-sensitivities exist?
Is there any information about the volumetric flow rate [m3/s] provided? I couldn't find any time-dependent statement.
Thank you so much for your help!

[adafruit_support_bill]

A brief description of the operating principle of the sensor and temperature/consistency curves can be found in the datasheet. There is a link to it in the guide:
https://learn.adafruit.com/pm25-air-qua ... /downloads

There is a lot of information on Mie Scattering available on the web.
https://en.wikipedia.org/wiki/Mie_scattering

For more details on the specific implementation used by this sensor, you can try contacting the manufacturer:
http://www.plantower.com/en/about/?125.html