Category: Electrical Measurements & Instrumentation

Continue reading What is Logic Analyzer? Block Diagram, Working, & Applications

An instrument which provides different types of waveforms whose frequency values can be varied and adjusted over a wide range (from a hertz to several hundred kilohertz) is referred as function generator. Continue reading What is Function Generator? Block Diagram, Working, Applications & Specifications

A null type recorder is a type of strip chart recorder. These recorders are based on the principle of null condition or self balancing principle. Continue reading What is Null Type Recorder? Types, Working & Diagram

Figure 1: Galvanometer Type Recorder.

A galvanometer type recorder is a type of strip chart recorder and it is based on the principle of deflection i.e., the data is recorded due to deflection of pointer. The pointer deflects because of deflecting torque which is proportional to the magnitude of the variable being recorded. Continue reading What is Galvanometer Type Recorder? Working & Diagram

Data loggers are the devices used to measure and store the readings of instruments without any loss of accuracy. They are the application of data acquisition system. The output of a transducer can be measured and the value is logged automatically by the data loggers. They also take care of suitable corrective action if the output signal goes beyond the predefined range. Continue reading What is Data logger? Block Diagram, Parts, & Functions

A plotter is a printing device that employs vector graphics technique for printing vector graphics and is connected to a computer. It is a pen based output device used for printing bulk format graphs and maps such as engineering drawings and map constructions. They are widely used for drawing high resolution graphs. Continue reading What is Plotter? Working, Types, Limitations & Advantages

The X-Y recorders are the devices that record the variation in one dependent variable with respect to an independent variable. The graphical record of one variable against another variable is known as an X-Y record. Continue reading What is XY Recorder? Working & Diagram

A strip chart recorder is a type of analog-graphical recorder which records the variation of one or more variables with respect to time on a chart (graph paper) moving at a constant speed. Continue reading What is Strip Chart Recorder? Working & Diagram

Process instrumentation is a branch of engineering, which deals with various types of instruments to record, monitor, indicate and control of various physical parameters such as temperature, pressure, PH value, level etc. Continue reading What is Process Instrumentation? Definition, Block Diagram & Objectives

Synchroscope instrument is used to synchronize two alternators, which are to be connected in parallel with one another with bus bars to share the load. The synchroscope determines the exact instant where the conditions of synchronizing are satisfied. These conditions are: Continue reading What is Synchroscope? Working, Diagram & Types