Basics of Level Measurement
Level Measurement Liquid level measuring devices are classified into two groups: (a) direct method, and (b) inferred method. An example
Why RTD installed after the Orifice Plate ?
Why RTD installed after the Orifice Plate ? The location of the RTD (thermowell), positioned downstream of the orifice plate
What is Emergency Shutdown System (ESD) ?
A critical condition for which immediate shutdown of the gas turbine and compressor is required and delayed shutdown options are
Functions of Pressure Detectors
Pressure Detector Functions Although the pressures that are monitored vary slightly depending on the details of facility design, all pressure
Functions of Temperature Detectors
Functions of Temperature Detectors Although the temperatures that are monitored vary slightly depending on the details of facility design, temperature
Resistance Type Pressure Transducers Principle
Resistance-Type Pressure Transducers Included in this category of transducers are strain gauges and moving contacts (slidewire variable resistors). Figure 1
Inductance Type Pressure Transducers Principle
The inductance-type transducer consists of three parts: a coil, a movable magnetic core, and a pressure sensing element. The element
Capacitive Type Pressure Transducers Principle
Capacitive-type transducers, illustrated in Figure, consist of two flexible conductive plates and a dielectric. In this case, the dielectric is
Bridge Circuit Construction
Figure 1 shows a basic bridge circuit which consists of three known resistances, R1, R2, and R3 (variable), an unknown
Thermocouple Construction
A thermocouple is constructed of two dissimilar metal wires joined at one end. When one end of each wire is