Multiwavelength Pyrometer for Galvannealed Steel Sheet Temperature Measurement

Electron Diffraction Study on Fe–Zn intermetallic Phase of a Galvannealed IF Steel Sheet

In order to investigate the structure of Fe–Zn phase in a commercial galvannealed IF steel sheet, the electron diffraction and composition of phase in a commercial galvannealed IF steel sheet were studied by transmission electron microscope (TEM) and X-ray energy dispersive spectroscopy (EDX). The cross-sectional TEM specimen was prepared using focused ion beam (FIB) technique which was also in...

Infrared pyrometer for temperature measurement of objects , emissivity of which depends on wavelength and time

The multiband MBP 98A pyrometer developed for non-contact temperature measurement of objects with unknown and wavelength-dependent emissivity has been presented in this paper. The pyrometer was designed using single thermoelectrically cooled PbS detector of spectral band of 1-2.5 Ilm and 8 narrow-band optical filters. It enables temperature measurement of objects at temperature within a range o...

New Optical Pyrometer for Measuring the Temperature of Aluminum

Fiber-Optic Pyrometer with Optically Powered Switch for Temperature Measurements

We report the experimental results on a new infrared fiber-optic pyrometer for very localized and high-speed temperature measurements ranging from 170 to 530 °C using low-noise photodetectors and high-gain transimpedance amplifiers with a single gain mode in the whole temperature range. We also report a shutter based on an optical fiber switch which is optically powered to provide a reference s...

Brake disc surface temperature measurement using a fiber optic two-color pyrometer

A fiber optic two-color pyrometer was developed for brake disc surface temperature measurement. The two-color pyrometer is composed of a fluoride glass fiber and two HgCdTe detectors equipped with bandwidth filters. The two-color pyrometer allows the measurement of brake disc temperature in the 200-800 °C range with a time resolution above 7 μs. Calibration formula for the signals obtained usin...