Modern analog-to-digital converters are phenomenally accurate, dependable, repeatable, and surprisingly…
Textbook
The dispersion of visible light into its constituent colors goes all the way back to the 17th century with…
Textbook
“Radio” systems use electromagnetic fields to communicate information over long distances through…
Textbook
One of the great benefits of digital technology is the ability to communicate vast amounts of information over…
Textbook
When I began teaching full-time in 1998, most of what I thought I understood about good teaching was actually…
Textbook
There are several different methods useful for causing an AC induction motor to brake, or slow down: DC…
Textbook
The vast majority of PID controllers in service today are digital in nature. Microprocessors executing PID…
Textbook
Multiple accessories exist for pressure-sensing devices to function optimally in challenging process…
Textbook
The following photograph shows a large air blower in a wastewater treatment facility equipped with a…
Textbook
Using filter cells to eliminate wavelengths associated with interfering gases is called positive filtering in…
Textbook
Control strategies such as cascade, ratio, feedforward, and those containing limit and selector functions can…
Textbook
To review, voltage is the measure of potential energy available to electric charges. Current is the uniform…
Textbook
pH is the measurement of the hydrogen ion activity in a liquid solution. It is one of the most common forms of…
Textbook
A fundamental limitation of proportional control has to do with its response to changes in setpoint and…
Textbook
A control strategy similar to ratio control is relation control. This is similar to ratio control in that a…
Textbook
Perhaps the most valuable skill an instrument technician can possess is the ability to efficiently diagnose…
Textbook
An exciting development in industrial instrumentation is the WirelessHART radio communication standard,…
Textbook
An electromechanical relay is an electrical switch actuated by an electromagnet coil. As switching devices,…
Textbook
Finally, we arrive at the loop diagram (sometimes called a loop sheet) for the compressor surge control system…
Textbook
As previously defined, calibration refers to the checking and adjustment of an instrument so that its output…
Textbook
Facebook
Google
GitHub
Linkedin