Name the common types of elements 4 fixed and 4 sensitive us

Name the common types of elements (4 fixed and 4 sensitive) used with pressure transducers. In hydraulics

sensing elemnts : InSe, GaSe, and Bi2Te3 semiconductors, potentiometer, capacitive transducer,differential transformer strain gauge

fixed elements : corrugated , diaphragms,Bourdon tubes, capsules and bellows