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Particle sensor with LoRa

Posted on Friday, July 27th, 2018 in sensors by DP

pm-sensor-finished

Mare published a new build:

Particle sensors could be cheap and easy to use. Disadvantage of lowest cost PM sensors is lack of “calibration”. The best method to measure particle content dispensed in the air is to collect the air sample and analyse it off-line in the laboratory with proper equipment (not cheap at all). Optical particle counting sensors use the light scattering method to detect and count particles in the operating concentration range in a given environment. A laser light source illuminates a particle as it is pulled through the detection chamber. As particles pass through the laser beam, the light source becomes obscured and is recorded on the photo or light detector. The light is then analyzed and converted to an electrical signal providing particulate size and quantity to predict concentrations in real time.

See the full post on Mare & Gal Electronics blog.

This entry was posted on Friday, July 27th, 2018 at 9:51 pm and is filed under sensors. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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