Elastic Pressure Transducer. WASEEM ZIA (2007-CHEM-15). Synopsis:. Types Pressure Sensors Summary Functional Uses Merits & Demerits References. Types:. Bellows Bourdon tube Diaphragm. Bellows.
WASEEM ZIA (2007-CHEM-15)
The bellows is a one-piece, collapsible, seamless metallic unit that has deep folds formed from very thin-walled tubing.
The bourdon tube pressure instrument is one of the oldest pressure sensing instruments in use today. The bourdon tube (refer to Figure 3) consists of a thin-walled tube that is flattened diametrically on contrary sides to produce a cross-sectional area elliptical in form, having two long flat sides and two short round sides.
Diaphragm elements are made of circular metal discs or flexible elements such as rubber, plastic or leather.
In a bellows-type sensor:
In a bourdon tube-type sensor:
In Diaphragm pressure sensor:
Merits of Flexible Pressure transducer
Demerits of Flexible Pressure transducer