eBooks

Instrumentation Books

What is ON/OFF Valve ?
  • Control Valves

What is ON/OFF Valve ?

An ON/OFF Valve is the fluid equivalent of an electrical switch, a device that either allows unimpeded flow or acts…

5 years ago
  • Electrical Machines

Basics of AC Induction Motors

The basic principle of an AC induction motor is that one or more out-of-phase AC (sinusoidal) currents energize sets of…

7 years ago
  • Switches

Temperature Switch Principle

A temperature switch is one detecting the temperature of some substance. Temperature switches often use bimetallic strips as the temperature-sensing…

5 years ago
  • Switches

Ultrasonic Level Switch Principle

Yet another style of electronic level switch uses ultrasonic sound waves to detect the presence of process material (either solid…

7 years ago
  • Switches

Basics of Pressure switches

A pressure switch is one detecting the presence of fluid pressure. Pressure switches often use diaphragms or bellows as the…

7 years ago
  • Switches

Basics of Limit switches

A limit switch detects the physical motion of an object by direct contact with that object. An example of a…

7 years ago
  • Communication

OTDR Testing

An Optical Time-Domain Reflectometer or OTDR is a sophisticated test instrument used to probe the characteristics of long optical fibers.…

6 years ago
  • Communication

Fiber Optic Cable Testing

Fiber optic cable testing is done to ensure all installed cable lengths and connectors are functioning properly.

4 years ago
  • Communication

Fiber Optic Cable Connectors, Routing, and Safety

One of the most popular styles of single-fiber connector is the so-called “ST” style, which uses a quarter-turn locking barrel…

7 years ago
  • Communication

Multi-mode and Single-mode Optical Fibers

In any sort of waveguide – optical, electrical, or even acoustical (sound) – the signal energy may be able to…

6 years ago