Applications Of Pyrometer: Fill & Download for Free

Now you are making me remember how old I am. 50 years ago these were very different devices using the luminances of flames, metal fire brick to measure temperatures where normal devices would just fail. There were even things called high temperature thermocouples and the funky type wires that were also used.You can go to a building supply store or the Internet and they will provide data on the color of light versus the temperature. Basically the pyrometer is looking at the light color to measure temperature. These early pyrometer devices were spendy, thousands of dollars. In today’s money that would equate to $10,000 - $15,000. Further these devices were perhaps only accurate to +/- 10–15%. Pyrometers can also see UV lights, Infrared and other non visible light.Today well actually a few months ago I was out of town and went to a local hardware store and purchased a laser temperature meter, $60 on close out. Point at a window 50 feet away and it could sense temperature to within a fraction of a degree. The laser meters work more accurately and people use them in heating / cooling plants and can measure pipe insulation temperatures and surface temperatures of pumps, boiler surfaces, boiler stacks. These devices still use the fundamental principal of pyrometers and are still called pyrometers. These devices have also been used to determine temperature of the sun and planets as well.The University of Minnesota had a power plant on the Mississippi River and distributer 450 psig steam in tunnels 80–100 feet deep to four or five hundred buildings. Sometimes the pipe would have a tiny pinhole leak and this would cut a human in half in a matter of a couple seconds. People would hold out wood 2X4 and watching on be cut like cheese and seeing this happen is like wow!Thermal imaging is used to measure failed building insulation and locate exterior water and or air leaks. This technology is used to examine old electric panels with failing internal components. Lots of human life is saved as a result of finding a defective electric panel and knowing not to turn on / turn off until repairs can be made usually requiring shutting down entire building or power grid. Although inconvenient, it is better to shut down the building even though the computer server is costing $100,000 an hour then create dead or badly injured people plus still lose $100,000 an hour for weeks on end waiting for parts and materials to arrive.A lot publicity is reported about bridges and roads but we all need to realize that 50% of all electrical equipment is 50–100 years old and virtually never inspected or tested until failure. This is the same story for heating piping and boilers and other distribution systems. We clearly need this technology and for more people to understand why this exists and the need to use. Keep asking these questions you are the next generation, I finished my watch it is now your turn Quora Techs to worry and turn grey.

radiation pyrometerThe wavelengths measured by the device are known to be pure radiation wavelengths, that is, the common range for radioactive heat. This device is used in places where physical contact temperature sensors likeThermocouple, RTD, and Thermistors would fail because of the high temperature of the source.The main theory behind a radiation pyrometer is that the temperature is measured through the naturally emitted heat radiation by the body. This heat is known to be a function of its temperature. According to the application of the device, the way in which the heat is measured can be summarized.Selective Radiation Pyrometer – In this method, the heat radiated from the hot source is measured at a given wavelength.

an application that i know is its use in pyromery where sensor senses the monochromatic radiation having highest intensity.Pyrometer calculates the wavelengtn of this monocromatic radiation and after that a calculator inbuilt in pyrometer calculates the average absolute temprature of radiation source using wein’s law.Ofcourse emissivity of radiation source matters in pyrometry whch is not a black body for sure and wein’s law has been defined for black body having emmisivity equal to one.