Instrument technicians should not have to concern themselves over the programming details internal to digital…
Textbook
All masses require force to accelerate (we can also think of this in terms of the mass generating a reaction…
Textbook
A sliding-stem valve body is one where the moving parts slide with a linear motion. Some examples of…
Textbook
In reliability engineering, it is important to be able to quantity the reliability (or conversely, the…
Textbook
Self-balancing mechanisms consisting solely of a baffle/nozzle detector coupled to a feedback bellows, while…
Textbook
As described earlier in this chapter, calibration refers to the adjustment of an instrument so its output…
Textbook
Much of our knowledge about atomic structure comes from experimental data relating the interaction between…
Textbook
Volumes could be written about poor diagnostic technique. The following mistakes are not intended to comprise…
Textbook
DC electric motors generate torque by a reaction between two magnetic fields: one field established by…
Textbook
The following animation shows how a radio-energy pulse travels down and then up the waveguide of a guided-wave…
Textbook
A variety of problem-solving techniques have been presented for students over the years which are all helpful…
Textbook
The vast majority of PID controllers in service today are digital in nature. Microprocessors executing PID…
Textbook
As previously defined, calibration refers to the checking and adjustment of an instrument so that its output…
Textbook
An engineer named Bob Metcalfe conceived the idea of Ethernet in 1973, while working for the Xerox research…
Textbook
Capacitance Any two electrical conductors separated by an insulating medium possess the characteristic called…
Textbook
An important type of “accessory” relay, especially for legacy electromechanical protective relays,…
Textbook
This section does not describe a particular type of flowmeter, but rather a design that may be implemented for…
Textbook
I remember first learning about the world-wide Internet, and wondering what it actually looked like. The first…
Textbook
Some of the simplest types of digital communication networks found in industry are defined by the EIA…
Textbook
Disturbances in the liquid tend to complicate liquid level measurement. These disturbances may result from…
Textbook
Modern analog-to-digital converters are phenomenally accurate, dependable, repeatable, and surprisingly…
Textbook
A great many chemical composition measurements may be made indirectly by means of electricity, if those…
Textbook
Many liquid substances undergo a process whereby their constituent molecules split into positively and…
Textbook
Sometimes we encounter a diversity of instrument signal standards in one control system. Such is the case with…
Textbook
In addition to directly performing logic functions, electromechanical relays may also be used as interposing…
Textbook
The following animation shows how a radio-energy pulse travels down and then up the waveguide of a guided-wave…
Textbook
Using filter cells to eliminate wavelengths associated with interfering gases is called positive filtering in…
Textbook
In November of 2007 a new computer virus was submitted to a virus scanning service. The purpose of this new…
Textbook
In the United States, the ANSI and IEEE organizations have standardized a set of numerical codes referring to…
Textbook
“Feedforward” is a rather under-used control strategy capable of managing a great many types of…
Textbook
It is possible to convey electrical power and communicate analog information over the same two wires using 4…
Textbook
Control valves are supposed to deliver reliable, repeatable control of process fluid flow rate over a wide…
Textbook
Control strategies such as cascade, ratio, feedforward, and those containing limit and selector functions can…
Textbook
AC induction motors are based on the principle of a rotating magnetic field produced by a set of stationary…
Textbook
Electrical power grids primarily consist of three-phase AC circuits. This means most power lines (transmission…
Textbook
The most popular form of signal transmission used in modern industrial instrumentation systems (as of this…
Textbook
A fluid is any substance having the ability to flow: to freely change shape and move under the influence of a…
Textbook
A positive displacement flowmeter is a cyclic mechanism built to pass a fixed volume of fluid through with…
Textbook
The dispersion of visible light into its constituent colors goes all the way back to the 17th century with…
Textbook
The very purpose of physics is to quantitatively describe and explain the physical world in as few terms as…
Textbook
Facebook
Google
GitHub
Linkedin