SEN-09405

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Gas sensors are common instruments used to detect and monitor the presence of certain gases in a given environment. They come in a variety of designs and technologies, all of which have particular advantages and disadvantages. One such gas sensor is the SEN-09405, which utilizes a heated micro-thermistor to detect the presence of gas molecules. In this article we will look at the SEN-09405’s application field and working principle.

The SEN-09405 gas sensor is mainly used in fields such as indoor air quality (IAQ) monitoring, building automation, HVAC systems, laboratories, and industrial production. It is an excellent solution for environmental monitoring applications that require precision and long-term accuracy. The SEN-09405 is capable of detecting a wide range of gases including hydrogen, methane, ethylene, carbon monoxide, and nitrogen dioxide. Additionally, the sensor’s temperature compensation feature provides consistent readings in the presence of different temperature changes.

The SEN-09405 is a heated micro-thermistor-based gas sensor. It utilizes a high-purity, C10 polymer gas sensitive layer that features a low-temperature operation range and robust performance. The device utilizes a precisely etched p-type silicon substrate with a Pt-Rh electrode structure to form the basic structure of the sensor. This allows for a high-sensitivity response that is less affected by external noise and temperature fluctuations. The SEN-09405 also has a very short warm-up time of only 10-15 seconds.

The working principle of the SEN-09405 is quite simple. The sensor uses the Schottky effect to detect the presence of gas molecules in the air. When a gas comes into contact with the polymer layer, the electrons in the polymer layer become excited and energy is transferred from the gas molecules to the electrons. This alteration causes the thermistor to increase in temperature and produces a voltage signal that is correlated to the concentration of the specific gas in the environment.

The SEN-09405 is also equipped with a number of advanced features to ensure accuracy and reliability in data analysis. It has a signal noise ratio function that allows the temperature stability of the readings taken over time to be assessed. The device also features an adjustable temperature compensation mode to further ensure accuracy. Moreover, the built-in on-board self-testing and calibration processes guarantee the reliability of the data collected.

In conclusion, the SEN-09405 is an ideal solution for indoor air quality monitoring and other environments where precise readings are necessary. It utilizes a high-quality polymer gas sensitive layer, advanced electronics, and on-board self-testing calibration processes to ensure accuracy and reliability in its operation. Furthermore, its adjustable temperature compensation feature ensures consistent readings in the presence of different temperature fluctuations.

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