industrial instrument

1. Md. Shahabuddin Shaikh

3. Introduction
The pressure measuring cell converting the
pressure into an electrical signal is the heart of the
pressure sensor.
Pressure transmitter

4. Categorization of Pressure Instruments:
• Pressure gauges
• Pressure transmitters

5. The pressure gauges
The pressure gauge instrument is used for measuring
the condition of a fluid (liquid or gas).
Pressure gauge accessories are as follows:
• Diaphragms
• Bellows
• Bourdon Tube

6. Diaphragms

7. Bellows
Bellows (fig. 3) are made with a number of convolutions from a
soft material and one end of it is fixed, whenever air can go
through a port. The other end of the bellows is free to move.

8. Bourdon Tube
It is basically consisted of a C-shaped hollow tube, whose one
end is fixed and connected to the pressure tapping, the other
end free.

9. Pressure transmitters
A pressure transducer, often called a pressure
transmitter, is a transducer that converts pressure
into an analog electrical signal.

10. Pressure transmitters