Sensors produced with serigraphed sensitive materials

Sensors produced with serigraphed sensitive materials 

In this case, the sensitive element is already snpported by a structure made of alpha-alumina. The shape and size of this support will be chosen according to the operation that we wish to perform. 

The principle used is similar to that used for sensors made with tin dioxide or beta-alumina, the only differences being located at the level of the electrodes two gold electrodes for the tin dioxide used as a resistant sensor, a gold electrode and a platinum electrode for beta-alumina, used as a potentiometric sensor. 

To make this device perfectly self-contained, it is necessaiy to inlay a heating element which has the shape of platinum resistance. 

This resistance is deposited using serigraphic depositing on ceramic substrates of alpha-alumina (length 38 mm width 5 mm). After steam-drying at 105°C for 10 minutes, the sample is placed in a furnace. There, a thermal treatment is apphed to the samples at 980°C for 10 minutes  

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Sensors produced with serigraphed sensitive materials... 

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