Programmable Logic Controller

A Programmable Logic Controller can be defined in many ways. It can be defined as a program controlled electronic equipment with a reprogrammable memory for storing a set of commands which is used for ...

Classification of Instruments

Classification of instruments can be carried out in two categories:Absolute Instrument These instruments give the magnitude of the quantity under measurements in terms of physical constants of the instrument. The quantity to be measured ...

Methods of Measurement

Measuring instruments may be defined as device for determining the value or magnitude of quantity or variable.To know about ‘Measuring instruments’ in detail, visit http://electricalfundablog.com/blog/measuring-instrument/665/. Here in this post, we will learn about the methods ...

Null Modem cable

Null Modem Cable. A null modem cable is a form of RS-232 standard where the transmit and receive lines are cross linked. Normally a straight through serial cable is used with this kind of adapter. ...

Interface

An Interface is a common shared medium across which two different components of a computer system can exchange data or information. There are basically two types of interface:Hardware Interface Software InterfaceMajority of equipments which ...

Parallel Communication

Parallel communication is a method of sending several data signals simultaneously over a communication link at one time. It comprises of several wired channels in parallel. The basic difference between a parallel communication and a serial communication ...

Serial Communication

Serial communication can be defined as the method of sending one bit of data at one point of time in succession through a bus. This is directly opposite to the function of parallel communication, ...

Digital Multimeter

Digital Multimeter is an electronic test equipment which measures the AC/DC voltage and provides the reading in digital numeric mode. It has successfully replaced its age old counterpart , Analog multi-meter, which provides the reading with ...

Digital Oscilloscope

A ‘Digital Oscilloscope‘¬† is an electronic test equipment which is used to measure and compare a signal graph with respect to time. It is one of the commonly used as well as multipurpose test ...