Classification of Pressure measuring instruments
We can classify the pressure measuring instruments into 3 major categories
We can classify the pressure measuring instruments into 3 major categories
1.Moderate Pressure measurement
2.Very high-pressure measurement
3.High vacuum measurement
Moderate pressure measurement
A – Manometers
B – Mechanical displacement type
Ring balance manometer
Bell-Type Manometer
C-Elastic pressure transducer
-Bourdon tube pressure gage
-Diaphragm type gauge
-Bellow Gages
D-Electrical pressure transducers
-Resistance type pressure transducer
-Potentiometer devices
-Inductive type transducer
-Capacitive type transducer
-Piezoelectric pressure transducer
Very High-pressure Measurement
Electric gages based on resistance change of Manganin or Gold – Chrome wire are used
High Vaccum Measurement
A Mcleod Gage
B Thermal conductivity gage
C Ionization Gage
D Knudsen Gage
