Temperature Pyrometer Sara Gunnarsson Niklas Nilsson History - PowerPoint PPT Presentation

Jan 08, 2024 •175 likes •263 views

Temperature Pyrometer Sara Gunnarsson Niklas Nilsson History Oldschool pyrometer - uses expanding metal bars Optical pyrometer principle Optical pyrometer principle Simple radiation pyrometer Photomultiplier tube Usable in wide ranges

Temperature Pyrometer Sara Gunnarsson Niklas Nilsson
History Oldschool pyrometer - uses expanding metal bars
Optical pyrometer principle
Optical pyrometer principle
Simple radiation pyrometer
Photomultiplier tube ● Usable in wide ranges ● When a photon hits the electrode it emits an electron which multiplies and creates a current
Modern radiation pyrometer Stefan-Boltzmanns law Emissivity varies with wavelength and material ● Selective radiation pyrometer - one wavelength ● Total radiation pyrometer - all infrared wavelengths
Accuracy, connections, cost ● Many different types with different ranges ● Many handheld devices, some connected via USB or serial (RS232) for monitoring and configuration ● Price from 200 SEK depending on range and accuracy ● Range is roughly -20°C to 3000°C ● Accuracy usually from 0,1°C up to 0,5°C

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