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The aluminium oxide (AL2O3) humidity sensor provides precise willpower of dew point, frost position, ppm, or relative humidity in most industrial gases.
The working principle of the aluminum oxide sensor is that its capacitance differs with the moisture focus. The sensor is able of each ppm and dew stage measurements in most industrial fuel streams. The electronics are mounted internally and method the sign from the sensor and exhibit the readings on the front show panel.
Aluminium Oxide Humidity Sensor Idea
An aluminum layer on a ceramic support is anodized to form a slender porous layer of aluminum oxide. The aluminum oxide is then coated with a slim, permeable layer of gold. The gold and the aluminium layers form the sensor electrodes.
Determine 1. Cross-segment of aluminium oxide sensor.
The gold layer is permeable to humidity and conductive. Electrochemical Cells Oxygen Sensor of a capacitor.
The pores in the aluminium oxide layer absorb humidity from the gasoline stream in quantities straight proportional to the humidity content material of the fuel stream.
Figure two. Close-up view of aluminium oxide sensor.
The absorption of h2o molecules changes the capacitance of the sensor. The capacitance of the sensor is measured which is then converted to the humidity value.
The radius of the pores in the aluminium oxide layer make the sensor distinct to water molecules.
<img width="327" src="https://www.avcray.com/Avcray-Oxygen-dew-point-Analyzers.png" />
Employs of the Aluminium Oxide Sensor
The aluminium oxide sensor is suited for use on nearly any application in which moisture measurements are essential.
Industrial apps for dampness analyzers tumble into two areas:
Gasoline Producers: for making certain solution top quality
Gasoline Consumers: to guarantee trustworthiness of inert gas blankets.
Standard industries demanding the use of moisture measurement products are Semiconductor, Steel Treatment, and Plastics.
Homepage: https://www.avcray.com/
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