The aluminium oxide (AL2O3) dampness sensor gives exact determination of dew place, frost issue, ppm, or relative humidity in most industrial gases.

The operating theory of the aluminum oxide sensor is that its capacitance differs with the humidity focus. The sensor is capable of both equally ppm and dew level measurements in most industrial fuel streams. The electronics are mounted internally and system the signal from the sensor and display screen the readings on the entrance display panel.

Aluminium Oxide Moisture Sensor Theory
An aluminum layer on a ceramic assist is anodized to form a thin porous layer of aluminum oxide. The aluminum oxide is then coated with a slender, permeable layer of gold. The gold and the aluminium levels type the sensor electrodes.



Determine one. Cross-segment of aluminium oxide sensor.

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

The pores in the aluminium oxide layer take up moisture from the gasoline stream in amounts immediately proportional to the dampness content material of the Fuel Cell Oxygen Sensors stream.

Figure two. Close-up see of aluminium oxide sensor.

The absorption of water molecules changes the capacitance of the sensor. The capacitance of the sensor is measured which is then converted to the dampness value.

The radius of the pores in the aluminium oxide layer make the sensor unique to water molecules.

Employs of the Aluminium Oxide Sensor
The aluminium oxide sensor is acceptable for use on virtually any software the place humidity measurements are demanded.

Industrial purposes for moisture analyzers slide into two regions:
Gasoline Producers: for making sure solution quality
Fuel Consumers: to make sure trustworthiness of inert gas blankets.
Usual industries necessitating the use of dampness measurement gear are Semiconductor, Steel Treatment method, and Plastics.