Environmental conical nozzle levitator equipped with dual wavelength lasers
Journal of the American Ceramic Society, Volume 107, Issue 3, Page 2010-2023, March 2024.Abstract The environmental conical nozzle levitator (E‐CNL) with dual‐wavelength lasers is an extreme environment materials characterization system that was designed to investigate ultra‐high‐temperature materials: refractory metals, oxides, carbides, and borides above 3000 K in a controlled atmosphere.
Fox Thorpe +3 more
wiley +1 more source
1700 deg C optical temperature sensor [PDF]
A new gas temperature sensor was developed that shows promise of sufficient ruggedness to be useful as a gas turbine temperature sensor. The sensor is in the form of a single-crystal aluminum oxide ceramic, ground to a cone shape and given an emissive ...
Mossey, P. W. +2 more
core +1 more source
High pressure and high temperature equation of state of gamma and liquid iron [PDF]
, 1997 Shock-wave experiments on pure iron preheated to 1573 K were conducted in the 17–73 GPa range. The shock-wave equation of state of γ-iron at an initial temperature of 1573 K can be fit with u_s = 4.102 (0.015) km/s + 1.610(0.014) u_p with ρ_o = 7.413±0 ...
Ahrens, Thomas J., Chen, George Q.
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Electro-optic architecture for servicing sensors and actuators in advanced aircraft propulsion systems [PDF]
A detailed design of a fiber optic propulsion control system, integrating favored sensors and electro-optics architecture is presented. Layouts, schematics, and sensor lists describe an advanced fighter engine system model.
Glasheen, W. M., Poppel, G. L.
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Infrared pyrometer for high resolution surface temperature measurement on rotating turbine blades [PDF]
A high resolution pyrometer was developed and used to obtain temperature profiles of rotating turbine blades at tip speeds up to 366 meters per second. Surface temperature variations from 920 to 1250 K can be measured and variations over distances of 0 ...
Uguccini, O. W.
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Noncontact technique for measuring surface tension and viscosity of molten materials using high temperature electrostatic levitation [PDF]
, 1999 A new, noncontact technique is described which entails simultaneous measurements of the surface tension and the dynamic viscosity of molten materials. In this technique, four steps were performed to achieve the results: (1) a small sample of material was
Ohsaka, Kenichi +3 more
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Multiwavelength Pyrometer Developed for Use at Elevated Temperatures in Aerospace Applications [PDF]
Researchers at the NASA Glenn Research Center have developed a unique multiwavelength pyrometer for aerospace applications. It has been shown to be a useful and versatile instrument for measuring the surface temperatures of ceramic zirconia thermal ...
Ng, Daniel L.
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Measurement of Cutting Temperature in Interrupted Machining Using Optical Spectrometry. [PDF]
Sensors (Basel), 2023 Espinoza-Torres I +6 more
europepmc +1 more source
Influence of Tilting Angle on Temperature Measurements of Different Object Sizes Using Fiber-Optic Pyrometers. [PDF]
Sensors (Basel), 2023 Vargas S, Tapetado A, Vázquez C.
europepmc +1 more source