This slide will give you all information about the pressure measuring devices. IT will give you information about barometer, pressure measuring device, manometer and it will give you information about piezometers.

1. Department of Chemical Engineering

2. Pressure measuring devices
Fluid mechanics-l
Presented by: Syed Muhammad Usman Shah
16103123-022
Department of Chemical Engineering

3. Contents
Pressure
Pressure measurement devices
Barometer
Bourdon Tube
Manometer
Piezometer

4. Pressure
Pressure (P) expresses the magnitude of normal force
(F) per unit area (A) applied on the surface.
SI Units: Pascal (N/m2)
Other units are: bar, kPa, mm of Hg)

5. Pressure measuring devices
Barometer:
An instrument for measuring atmospheric
pressure.

8. Aneroid Barometer:

9. Aneroid Barometer:

10. Bourdon tube pressure gage
The Bourdon pressure gauge uses
the principle that a flattened tube
tends to straighten or regain its
circular form in cross-section when
pressurized.

12. Manometer
An instrument used to measure the pressure exerted by liq
uids and gasses. Pressure is exerted on one end of a U-
shaped tube partially filled with
liquid; the liquid is displaced upwards on the other side of
the tube by a
distance proportional to the pressure difference on each sid
e of the tube.

16. Piezometer:
A piezometer is an open tube which is used
to measure the pressure via the rise of fluid
column.

18. Thank You for
Your Attention