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Aluminium Oxide Dampness Sensor

The aluminium oxide (AL2O3) humidity sensor supplies accurate perseverance of dew position, frost stage, ppm, or relative humidity in most industrial gases.


The functioning basic principle of the aluminum oxide sensor is that its capacitance may differ with the moisture concentration. The sensor is capable of both ppm and dew position measurements in most industrial fuel streams. The electronics are mounted internally and process the signal from the sensor and display the readings on the front display panel.


Aluminium Oxide Humidity Sensor Theory

An aluminum layer on a ceramic assistance is anodized to sort a slim porous layer of aluminum oxide. The aluminum oxide is then coated with a slender, permeable layer of gold. The gold and the aluminium layers type the sensor electrodes.




Determine 1. Cross-area of aluminium oxide sensor.


The gold layer is permeable to dampness and conductive. This forms the second electrode of a capacitor.


The pores in the aluminium oxide layer absorb moisture from the fuel stream in amounts straight proportional to the dampness material of the fuel stream.


oxygen analyzer . Close-up see of aluminium oxide sensor.


The absorption of drinking water molecules alterations the capacitance of the sensor. The capacitance of the sensor is measured which is then transformed to the dampness price.


The radius of the pores in the aluminium oxide layer make the sensor specific to h2o molecules.


Uses of the Aluminium Oxide Sensor

The aluminium oxide sensor is suitable for use on practically any application the place humidity measurements are required.


Industrial programs for humidity analyzers fall into two regions:

<img width="373" src="https://www.avcray.com/Avcray-Oxygen-dew-point-Analyzers.png" />

Gas Producers: for making sure item good quality

Gas Customers: to ensure reliability of inert fuel blankets.

Normal industries necessitating the use of moisture measurement gear are Semiconductor, Steel Treatment, and Plastics.


Homepage: https://www.avcray.com/
     
 
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