Process analyzers measure the concentration of specific substances for…
The fundamental principle of electromagnetism is that an electric…
Modern DC and AC motor drives provide features useful when using…
Perhaps the most valuable skill an instrument technician can possess…
One of the simplest classes of temperature sensor is one where…
Learning from reading printed text is a kind of problem-solving…
Take for instance the problem of measuring fluid flow through a pipe.…
The reason why a pneumatic control valve’s stem position…
Data-processing modules within FF systems are known as function…
The three “elementary” particles of matter comprising all…
An electric motor is often used as a discrete control element in a…
I remember first learning about the world-wide Internet, and wondering…
So far we have just looked at instruments that sense, control, and…
A very helpful method for understanding the operation of proportional,…
Pipe is a hollow structure designed to provide an enclosed pathway for…
A pneumatic controller receives a process variable (PV) signal as a…
Imagine a liquid-level control system for a vessel, where the position…
Several different technologies exist for the conversion of fluid…
Suppose we wished to measure the consumption of propane over time for…
A chemical reaction resulting in a net release of energy is called…
Resistance (\(R\)) is the dissipative opposition to an electric…
One of the fundamental laws of electric circuits is Kirchhoff’s…
This section shows some of the many instrument symbols found in…
As defined previously, calibration means the comparison and adjustment…
As described earlier in this chapter, calibration refers to the…
Multiple accessories exist for pressure-sensing devices to function…
Learning from reading printed text is a kind of problem-solving…
Virtually any mass above absolute zero temperature emits…
Like so many other industrial data networks, FOUNDATION Fieldbus is an…
Abdelaziz, Ahmed (June 2014) Identified numerous typographical errors…
A technological advance introduced in the late 1980’s was HART,…
Shown here is a partial listing of principles applied in the subject…
Given the ability of pressurized fluids to transmit force over long…
The reason why a pneumatic control valve’s stem position…
Layer 1 of the OSI Reference Model is where we define the…
In contrast to quantitative tuning procedures where definite numerical…
A special type flowmeter suited for powdered or granular solids is the…
Some analyzers measure the composition of a process stream by directly…
The dispersion of visible light into its constituent colors goes all…
Capacitive level instruments measure electrical capacitance of a…
