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Pressure Measurement

Strain Gauge Pressure Sensor Principle

S Bharadwaj Reddy
Strain Gauge Pressure Sensor Principle : When a closed container is subjected to the appilied pressure, it is strained (that is, its dimension changes). Measurement of this strain with a

Semi Conductor or Piezo Resistive Strain Gauge Principle

S Bharadwaj Reddy
These gauges are directly bonded (that is pasted) on the surface of the structure under study. Hence they are termed as bonded strain gauges. The three types of bonded strain

Fine Wire Strain Gauge Principle

S Bharadwaj Reddy
These gauges are directly bonded (that is pasted) on the surface of the structure under study. Hence they are termed as bonded strain gauges. The three types of bonded strain

Basics of Pressure Measurement

S Bharadwaj Reddy
A major portion of all industrial measurement relates in some way to pressure in its several forms. Flow, for example, is often measured by determining the pressure that exists at

Basics of Differential Pressure Transmitters

S Bharadwaj Reddy
One of the most common, and most useful, pressure measuring instruments in industry is the differential pressure transmitter. This device senses the difference in pressure between two ports and outputs

Pressure Transmitter Manifolds

S Bharadwaj Reddy
Pressure Transmitter Manifolds An important accessory to the DP transmitter is the valve manifold. This device incorporates manual valves to isolate and equalize pressure from the process to the transmitter,

Pressure Transmitter Vent fittings

S Bharadwaj Reddy
Before removing a pressure transmitter from live service, the technician must “bleed” or “vent” accumulated fluid pressure to atmosphere in order to achieve a zero energy state prior to disconnecting

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