Index mimics the human nose’s perception of odors with a relative intensity compared to recent history. In combination with the VOC Index, it helps to distinguish different events and user activities. This is a very helpful feature because the NO Index thus works in any environment. On the NO. x. Index scale, this offset is always mapped to

Sensirion's Gas Index Algorithm software provides a VOC and an NOx Index output signal calculated from the SGP40/41 raw signal inputs SRAW_VOC and SRAW_NOX. Note: for SGP40, only SRAW_VOC is available. This algorithm enables robust detection of ambient changes of VOCs and NOx with minimal sensor-to-sensor variation.

2021年11月23日 · Sensirion’s Gas Index Algorithm software provides a VOC and an NOx Index output signal calculated from the SGP40/41 raw signal inputs SRAW_VOC and SRAW_NOX. Note: for SGP40, only SRAW_VOC is available. This algorithm enables robust detection of ambient changes of VOCs and NOx with minimal sensor-to-sensor variation.

The main goal of the VOC/NOX Engine algorithm is to calculate a VOC/NOx Index signal that enables robust detection of ambient VOC/NOx changes, with minimal sensor-to-sensor variations. The Algorithm Engine calculates the VOC/NOx Index signal recursively from a single raw tick value Sout that is measured by the SGP sensor at each time step, as ...

offers a complete, easy-to-use sensor system on a single chip featuring a digital I2C interface and temperature-controlled micro hotplates, providing one VOC and one NOx based indoor air quality signal. Both sensing element and Gas Index Algorithm feature an unmatched robustness against contaminating gases present in real- .

The SGP41 is Sensirion’s new VOC and NOx sensor designed as digital smart switch and regulation unit for air treatment devices such as air purifiers. The two sensor signals processed by Sensirion’s powerful Gas Index Algorithm can be directly used to automatically trigger the removal of indoor air gas pollutants by air treatment devices ...

This algorithm enables robust detection of ambient changes of VOCs and NOx with minimal sensor-to-sensor variation. The algorithm is based on a statistical gain-offset normalization and adapts both parameters constantly applying an exponentially decaying function of the learned parameters to be able to adapt to changing environments.

Arduino Library for Sensirion's Gas Index Algorithm, providing a VOC and NOx Index output signal calculated from the SGP40/41 raw signals - Sensirion/arduino-gas-index-algorithm

2022年1月19日 · Signal processing is managed by Sensirion’s Gas Index Algorithm for VOC and NOx measurements. This algorithm processes raw measurements of VOC/NOx and maps them respectively to their own index scale, ranging from 1 to 500 index points. For the VOC Index, a value of 100 refers to the average indoor gas composition for 24 hours.

The VOC and NOx gas index algorithm needs a number of samples before the values stabilize. Wiring: ¶ The sensor has a JST GHR-06V-S 6 pin type connector, with a 1.25mm pitch.