Honeywell Intelligent Particulate Matter sensor (IPM Series) is a laser-based sensor that detects and measures particle concentration using light scattering for monitoring air quality.
The detection concentration range is 0 mg/m3 to 1,000 mg/m3. A laser light source illuminates a particle as it is pulled through the detection chamber. As particles pass through the laser beam, the light reflects off the particles and is recorded on the photo or light detector. The light is then analyzed and convert to an electrical signal to calculate particle concentration.
During the production calibration process, the sensor records the original laser light intensity parameters and fan speed. The calibration algorithm is applied to the sensor output to minimize sensor drift and improve accuracy over the sensor’s lifetime. This self-calibration occurs on each power-on cycle.
Target Applications
* Air quality protection systems (industrial & transportation) HVAC (commercial & residential)
* Air quality monitors (indoors & outdoors)
* Air purifiers (commercial & residential)
* Automotive cabin air purifiers
Features
* Laser-based (class 1) particle light scattering particle sensing
* Concentration range: 0 mg/m3 to 1,000 mg/m3
* Long life of up to 8 years with continuous operation
* RoHS & REACH compliant
* Factory calibrated
Main improvements from HPM particulate sensor
* Increased range of particle detection (.3 micrometers – 10 micrometers)
* I2C and PWM (in addition to UART which was on HPM)
* Reduced size
* Two additional output
