Meranie NDIR
Meranie na základne absorbcie infračerveného žiarenia:
SENSIRION SCD40/41
Na trhu (aliexprese) sa objavil nový senzor SCD40/41 za relatvíne dobrú cenu cca 18-20€.
je však zaujímavý jeho kaliráciou už priamo vo výrobe.
Stránka Heimann Sensor Germany
NDIR Sensor CO2 FIGARO USA CDM7160 Dokumentácia v PDF
Winsen MH-Z14A Dokumentácia PDF
,
CM1106-C Dokumentácia
S týmto senzorom budeme najbližšie robiť rôzne merania a skúšky.
 |
 |
PASCO2V15 Infineon
XENSIV™ PAS CO2 5 V sensor based on photo acoustic spectroscopy principle
Features
• Operating range: 0 ppm to 32000 ppm
• Accuracy: ±50 ppm ±5% of reading between 400 ppm and 3000 ppm
• Lifetime: 10 years for indoor mission profile
• Interface: I2C, UART, and PWM
• Package dimension: 13.8 × 14 × 7.5 mm3
• Maintenance: Maintenance-free when using ABOC feature (automatic baseline offset correction)
Potential applications
High accuracy, compact size, and SMD capability make the XENSIV™ PAS CO2 sensor ideal for
indoor air quality monitoring solutions in the market with numerous potential applications.
• HVAC (heating, ventilation, air conditioning)
• Home appliances
• Smart home IoT devices
• In-cabin air quality monitoring unit
• Agriculture/greenhouses
Description
Infineon has leveraged its knowledge in sensors and MEMS technologies to develop a disruptive gas sensor for CO2 sensing. The
XENSIV™ PAS CO2 is a real CO2 sensor combining NDIR technology with Infineon’s high SNR MEMS microphones, allowing for
state-of-the-art accuracy in an exceptionally small form factor.
The sensor is based on the photoacoustic spectroscopy (PAS) principle, where CO2 molecules within the sensor cavity absorb
infrared light, generating small pressure changes that are detected by an acoustic detector. CO2 concentration is then delivered in
the form of a direct ppm readout, thanks to the integrated microcontroller. Highly accurate CO2 readings are guaranteed.
