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Best MEMS gas sensor suppliers china introduces the main characteristics of the gas sensor
The main characteristics of the gas sensor: 1. Stability. Best MEMS gas sensor suppliers china tells you that stability refers to the stability of the sensor's basic response throughout the working time, depending on zero drift and interval drift. Best MEMS gas sensor suppliers china tells you that zero drift is the change in sensor output response throughout the operating time in the absence of target gas.
Mar 23,2023
The main characteristics of the gas sensor: 1. Stability. Best MEMS gas sensor suppliers china tells you that stability refers to the stability of the sensor's basic response throughout the working time, depending on zero drift and interval drift. Best MEMS gas sensor suppliers china tells you that zero drift is the change in sensor output response throughout the operating time in the absence of target gas.
Best MEMS gas sensor suppliers china tells you that interval drift refers to the output response change of the sensor continuously placed in the target gas, which is manifested as the decrease of the sensor output signal during the working time. Ideally, a sensor should have a zero drift of less than 10% per year under continuous operating conditions.
2. Sensitivity. Best MEMS gas sensor suppliers china tells you that sensitivity refers to the ratio of the sensor output change to the measured input change, which mainly depends on the technology used in the sensor structure. Most gas sensors are designed using biochemical, electrochemical, physical, and optical principles. The first consideration is to select a sensitive technology that is sensitive enough to detect the percentage of the valve limit (TLV-thresh-oldlimitvalue) or lower explosive limit (LEL-lower explosive limit) of the target gas.
3. Selectivity. Best MEMS gas sensor suppliers china tells you that selectivity is also known as cross-sensitivity. It can be determined by measuring the sensor response to a certain concentration of the interfering gas. This response is equivalent to the sensor response produced by a certain concentration of the target gas. This characteristic is very important in the application of tracking multiple gases, because the cross-sensitivity will reduce the repeatability and reliability of the measurement, and the ideal sensor should have high sensitivity and high selectivity.
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