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Percent Oxygen Transmitters (AL2O3) humidity sensor offers exact dedication of dew stage, frost position, ppm, or relative humidity in most industrial gases.
The running basic principle of the aluminum oxide sensor is that its capacitance differs with the humidity focus. The sensor is able of both ppm and dew point measurements in most industrial fuel streams. The electronics are mounted internally and approach the sign from the sensor and show the readings on the entrance screen panel.
Aluminium Oxide Moisture Sensor Principle
An aluminum layer on a ceramic help is anodized to kind 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.
Figure one. Cross-segment of aluminium oxide sensor.
The gold layer is permeable to humidity and conductive. This types the 2nd electrode of a capacitor.
The pores in the aluminium oxide layer take up dampness from the gasoline stream in quantities immediately proportional to the dampness material of the gas stream.
Determine two. Close-up look at of aluminium oxide sensor.
The absorption of drinking water molecules modifications the capacitance of the sensor. The capacitance of the sensor is calculated which is then converted to the dampness worth.
The radius of the pores in the aluminium oxide layer make the sensor certain to h2o molecules.
Employs of the Aluminium Oxide Sensor
<img width="347" src="https://www.avcray.com/Avcray-Oxygen-dew-point-Analyzers.png" />
The aluminium oxide sensor is appropriate for use on nearly any application exactly where dampness measurements are needed.
Industrial purposes for dampness analyzers fall into two locations:
Gas Producers: for making sure merchandise high quality
Gasoline Customers: to guarantee trustworthiness of inert gasoline blankets.
Normal industries demanding the use of humidity measurement tools are Semiconductor, Metallic Remedy, and Plastics.
My Website: https://www.avcray.com/
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