Skip to main contentdfsdf

Home/ mckeetennant's Library/ Notes/ Aluminium Oxide Moisture Sensor

Aluminium Oxide Moisture Sensor

from web site

analyzer zirconia Dew-Point Analyzers Vacuum gauge Electrochemical Cells Oxygen Sensor Transmitters Trace Percent Cells analyzer Cells Transmitters

The aluminium oxide (AL2O3) humidity sensor offers correct perseverance of dew point, frost position, ppm, or relative humidity in most industrial gases.

The running theory of the aluminum oxide sensor is that its capacitance differs with the humidity concentration. The sensor is capable of each ppm and dew stage measurements in most industrial fuel streams. The electronics are mounted internally and procedure the sign from the sensor and show the readings on the entrance exhibit panel.

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



Determine one. Cross-area of aluminium oxide sensor.

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

The pores in the aluminium oxide layer soak up humidity from the gas stream in amounts directly proportional to the dampness content material of the gasoline stream.

Determine two. Shut-up view of aluminium oxide sensor.

The absorption of water molecules modifications the capacitance of the sensor. The capacitance of the sensor is calculated which is then converted to the moisture benefit.

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

Uses of the Aluminium Oxide Sensor
The aluminium oxide sensor is appropriate for use on practically any software in which moisture measurements are needed.

Industrial apps for dampness analyzers slide into two locations:
Fuel Producers: for making sure merchandise high quality
Gasoline End users: to guarantee trustworthiness of inert fuel blankets.
Common industries demanding the use of moisture measurement equipment are Semiconductor, Metal Treatment, and Plastics.

mckeetennant

Saved by mckeetennant

on Jan 24, 21