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← Explore all topicsThe temperature measuring devices such as mercury-in-glass thermometer, bimetallic thermometer, resistance thermometer and thermocouples can be calibrated using a primary…
Basic Principle of Hot wire Anemometer When an electrically heated wire is placed in a flowing gas stream, heat is…
Introduction to Fuzzy logic control In fuzzy logic control the experience of human process operator, is incorporated in design of…
Basic Principle of Flow Nozzle: When a flow nozzle is placed in a pipe carrying whose rate of flow is…
The effects of feedback in systems on other working parameters of the system has been analysed. The parameter considered for…
As I said in the previous post Open loop control system don’t give the required level of control as they…
As the name indicates, electromechanical relays use the principle of inter conversion between electrical and mechanical energies. The most common…
When temperature to be measured is high and physical contact with the heat body is impossible, radiation pyrometer are used.…
The total radiation pyrometer receives all the radiation from a particular area of hot body. The term total radiation includes both the…
This thermometer is an instrument used to measure the temperature variation in control room. Working principle In each metallic conductor,…
Monochromatic brightness radiation thermometer Basic Principle of optical pyrometer: The principle of temperature measurement by brightness comparison…
These thermometers use the following two principles: 1. All metals change in dimension, that is expand or contract…