Knowledgebase. NDIR Principle. Non-Dispersive Infra-Red (NDIR) detectors are the industry standard method of measuring the concentration of carbon oxides (CO & CO2). Each constituent gas in a sample will absorb some infra red at a particular frequency. By shining an infra-red beam through a sample cell (containing CO or CO2), and measuring the ...
The basic measurement principle is called nondispersive infrared (NDIR) gas detection, which is based on the absorption of infrared radiation at certain gas specific wavelengths in accordance with the Beer-Lambert law. The most common gases that are measured with this NDIR principle are carbon dioxide (CO2), methane (CH4) and hydrocarbons (HC).
CM1106-C series is a single beam NDIR CO2 sensor, based on non-dispersive infrared (NDIR) technology with independent intellectual property, which can detect CO2 concentration of indoor air. With auto-calibration, no need of maintaince. With high accuracy, long term stability, small size, it is widely used for ventilation system, air purifier, air conditioner, HVAC transmitter, IAQ monitor, etc.
AKM’s NDIR type CO2 sensor achieves the world's lowest current consumption and outputs CO2 concentration with high accuracy even in compact. Especially, it’s suitable for portable battery-powered applications. This page describes the mechanism of CO2 sensors, the hottest topic in indoor air quality applications, customers’ adoption examples, and product information.
Jun 09, 2021· NDIR CO2 Sensor. Non-dispersive infrared, often called NDIR, sensors deliver high accuracy and fast response time. NDIR sensors have no contact with the gas, making them more reliable, and are constructed for specific gases so that they are unaffected by other gases. NDIR sensors are the most reliable method for detecting carbon dioxide gas.
May 13, 2015· Description of the Carbon Dioxide Measuring Devices NDIR CO2 Gas Sensor It is a portable sensor (model SD-GAS-025, Sensor Data B. V., Rijswijk, The Netherlands), with measuring principle based on gas absorption of radiation at a known wavelength [33–35]. Its core part