ELEMENTS OF MEASUREMENT SYSTEM

Post author:Aanchal Gupta
Post published:April 17, 2024
Post category:Electrical Technology

ELEMENTS OF MEASUREMENT SYSTEM

I) PRIMARY SENSING ELEMENT

This is the element that first receives energy from the measured medium and procedures an output depending in some way on the measured quantity (measured).

The output is some physical variable e.g. displacement or voltage. An instrument always extracts some energy from the measured medium. The measured quantity is always disturbed by the act of measurement, which makes a perfect theoretically impossible. Good instruments are designed to minimize this loading effect.

II) VARIABLE CONVERSION ELEMENT

If may be necessary to convert the output signal of the primary sensing element to another more suitable variable while preserving the information content of the original signal. This element performs this function.

III) VARIABLE MANIPULATION ELEMENT

An instrument may require that a signal represented by some physical variable be manipulated by some way.

By manipulation, we mean specifically a change in numerical value according to some definite rule but a preservation of the physical nature of the variable. This element performs such a function.

IV) DATA-TRANSMISSION ELEMENT

When functional elements of an instrument are actually physically separated, it becomes necessary to transmit the data from one to another. This element performs this function.

V) DATA PRESENTATION ELEMENT

If the information about the measured quantity is to be communicated to a human being for monitoring, control, or analysis purposes, it must be put into a form recognizable by one of the human senses. This element performs this ‘translation’ function.

VI) DATA STORAGE/PLAYBACK ELEMENT

Some applications require a distinct data storage/playback which can easily recreate the stored data upon command.

Aanchal Gupta

Welcome to my website! I'm Aanchal Gupta, an expert in Electrical Technology, and I'm excited to share my knowledge and insights with you. With a strong educational background and practical experience, I aim to provide valuable information and solutions related to the field of electrical engineering. I hold a Bachelor of Engineering (BE) degree in Electrical Engineering, which has equipped me with a solid foundation in the principles and applications of electrical technology. Throughout my academic journey, I focused on developing a deep understanding of various electrical systems, circuits, and power distribution networks.