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pH is the measure of the hydrogen ion concentration in a solution. It describes the degree of acidity or alkalinity (basicity) of a solution. pH measurement is used most often industrially with, but not limited to, aqueous (water-based) applications. The units of measure…
An infrared gas analyzer is used to measure the quantity of various gas. The amount of gas is determined by amount of a particular frequency of light absorbed by the gas when the light is passed through the gas. Different molecules in…
Oxygen analyzers are devices that measure the level of oxygen in a system, therefore, determines if the level needs to be increased or not. Oxygen analyzers, in turn, use a kind of oxygen sensor for their functioning. Oxygen analyzers provide valuable measurements in combustion…
Introduction An important type of photodetector is the photovoltaic cell, which generates a voltage that is proportional to the incident EM radiation intensity. These sensors are called photovoltaic cells because of their voltage-generating capacity, but the cells actually convert EM energy into…
Introduction A pyrometer is any temperature measurement device that includes a sensor and a reading. However, in this section we will discuss only radiation pyrometers. A radiation pyrometer is a non-contact temperature sensor that infers the temperature of an object by detecting…
What is Gas chromatography? A Gas chromatographer is a laboratory instrument used to analysis gas or hydrocarbon mixtures. In gas chromatography, the components of a sample are separated and highly sensitive quantitative analysis is carried out for each component. This process can measure…
Introduction There are different types of fire detectors like UV type fire detectors,Infrared type fire detectors etc.In this session we are going to discuss about Infrared type fire detectors. How it works ? All objects with a temperature greater than absolute zero emit IR radiation….
Introduction All the targets radiate energy in the infrared spectrum. The hotter the target, the more energy it radiates. Very hot targets radiate in both the visible and infrared spectrum. As the objectives cool, they no longer shine but continue to radiate….
Introduction A pyrometer, or radiation thermometer, is a non-contact instrument that detects the temperature of an object’s surface by measuring the temperature of the electromagnetic radiation (infrared or visible) emitted by the object. The pyrometer is any non-conductive device that intercepts and…
Introduction In process plants, sudden release of hydrocarbon / self igniting fluids may develop rapidly into a fire. In such cases it is imperative that fire is detected right at inception. Fire detectors are the devices which effectively carry out this task…