Essays on Temperature Measurement

Introduction

Taking measurements may require the conversion of the measured quantity to electrical quantity. Transducers are devices or elements that perform this function by transforming physical quantities such as quantities like sound, light, or temperature into electrical signals like current, voltage, or capacity. Transducers consist of inputs, sensing elements, transduction elements, signal processing, and electrical outputs. The inputs known as the measurands are the quantities, states, or properties that are to be translated into electrical outputs. The sensing elements accurately measure these input energies and sends the information to the transduction elements to be transformed into the desired form. The ...

Introduction

Accurate temperature measurement is a very vital and common requirement in every industrial instrumentation process. It is however very difficult to achieve this objective. Unless the techniques used to measure temperature are proper and effective, massive reading inaccuracies can occur leading to the accumulation of useless data. This is where the thermocouple comes into play. This device is a temperature sensor that is widely used in all corners of the globe. It has very many favorable characteristics and these include: high inherent accuracy; wide temperature range suitability; high reliability; great application versatility, fast thermal response and relatively low cost. The thermocouple ...