John Mulindi

Zener Diode and Emitter-Follower/Series Voltage Regulators

Almost all electronic devices and circuits need a dc source of power for their operation. While batteries and dry cells…

9 months ago

PFDs vs. P&IDs

Process Flow Diagrams (PFDs) defines the major elements of the process schematically i.e. the interconnections of process vessels, pipes and…

10 months ago

Process Instrumentation Diagnostics & Communication Interfaces

There are various technologies that are available that help plant automation personnel to obtain diagnostic data which inform the type…

10 months ago

How a Bubbler Device is used for Level Measurement

An often utilized technique of indirectly measuring a liquid level is to measure the hydrostatic pressure at the bottom of…

10 months ago

Megohmmeter: Function & Operation

The megohmmeter or megger is a portable deflection instrument widely used to check the insulation resistance of electrical cables and…

10 months ago

Microwave Passive Components: Types & Functions

The part of the electromagnetic spectrum referred to as the microwave region loosely includes 1-300 GHz for practical purposes. These…

10 months ago

Sources of Coherent Interference/Noise in Instrumentation Systems

Introduction The knowledge of how to design low noise instrumentation systems is an essential skill that any practicing instrumentation engineer…

10 months ago

What is Optimal Control?

Optimal control is whereby the requirements are formulated as either the minimization of a cost index or the maximization of…

10 months ago

Fiber Optic Temperature Sensors: Principle of Operation & Applications

As the name suggests these sensors employs fiber optics technology to function. A fiber optic sensor generally guides light to…

10 months ago

Non-Destructive Testing (NDT) Instrumentation

The increasing requirement to demonstrate the integrity and reliability of engineering materials, products and plant has contributed immensely to the…

10 months ago