Pressure Measurement

Effects of Symmetric and Asymmetric Capillary Tube Pressure Measurement

S Bharadwaj ReddyJuly 18, 2018April 13, 2019

Symmetric capillary 1. Seal Effect: If the ambient temperature increases the capillary volume V will tend to exert forces on the DP seal (both sides). If both capillary have the...

Pressure Detection Circuit

S Bharadwaj ReddyMay 25, 2018

The below Figure shows a block diagram of a typical pressure detection circuit. Figure : Typical Pressure Detection Block Diagram The sensing element senses the pressure of the monitored system...

Functions of Pressure Detectors

S Bharadwaj ReddyMay 23, 2018May 23, 2018

Pressure Detector Functions Although the pressures that are monitored vary slightly depending on the details of facility design, all pressure detectors are used to provide up to three basic functions:...

Resistance Type Pressure Transducers Principle

S Bharadwaj ReddyMay 22, 2018May 23, 2018

Resistance-Type Pressure Transducers Included in this category of transducers are strain gauges and moving contacts (slidewire variable resistors). Figure 1 illustrates a simple strain gauge. A strain gauge measures the...

Inductance Type Pressure Transducers Principle

S Bharadwaj ReddyMay 22, 2018May 24, 2018

The inductance-type transducer consists of three parts: a coil, a movable magnetic core, and a pressure sensing element. The element is attached to the core, and, as pressure varies, the...

Capacitive Type Pressure Transducers Principle

S Bharadwaj ReddyMay 22, 2018November 16, 2018

Capacitive-type transducers, illustrated in Figure, consist of two flexible conductive plates and a dielectric. In this case, the dielectric is the fluid. As pressure increases, the flexible conductive plates will...

What is LVDT ?

S Bharadwaj ReddyApril 9, 2018August 5, 2019

Linear Variable Displacement Transducer (LVDT): A very basic transducer which is always useful in the field of instrumentation, I have studied about this in my college days. Now let me...

Bourdon Tube Pressure Gauge

S Bharadwaj ReddyApril 7, 2018April 7, 2018

Bourdon tube pressure gauge when an elastic transducer ( bourdon tube in this case ) is subjected to a pressure, it defects. This deflection is proportional to the applied pressure...

Elastic Diaphragm Gauge Principle

S Bharadwaj ReddyApril 7, 2018April 11, 2019

Principle of Elastic diaphragm gauges when an elastic transducer (diaphragm is this case) is subjected to a pressure, it deflects. This deflection is proportional to the applied pressure when calibrated....

Strain Gauge Pressure Sensor Principle

S Bharadwaj ReddyApril 7, 2018March 12, 2019

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...

Inst Tools

Category : Pressure Measurement