John Mulindi

Optothyristors: Features & Principle of Operation

Silicon Controlled Rectifiers (SCRs), Triacs and other solid-state devices used for switching larger voltages and currents ON and OFF are…

1 year ago

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…

1 year 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…

1 year 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…

1 year 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…

1 year ago

Megohmmeter: Function & Operation

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

1 year 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…

1 year 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…

1 year 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…

1 year 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…

1 year ago