Results 71 to 80 of about 5,565 (184)

Cyclical tests of selected space shuttle TPS metallic materials in a plasma arc tunnel Volume 1: Description of tests and program summary [PDF]

open access: yes
Work, concerned with cyclical thermal evaluation of selected space shuttle thermal protection system (TPS) metallic materials in a hypervelocity oxidizing atmosphere that approximated an actual entry environment, is presented.
Land, D. W.   +3 more
core   +1 more source

Frictional experiments of dolerite at intermediate slip rates with controlled temperature: Rate weakening or temperature weakening? [PDF]

open access: yes, 2011
A rotary shear apparatus has been newly set up in Chiba University which can control the temperature near a sliding surface, T_meas, up to 1000°C independently from slip rate, V.
Hirose, Takehiro   +3 more
core  

1700 deg C optical temperature sensor [PDF]

open access: yes
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

Construction and Calibration of a Streaked Optical Spectrometer for Shock Temperature

open access: yes, 2020
Here we describe the implementation and calibration of a streaked visible spectrometer (SVS) for optical pyrometry and emission/absorption spectroscopy on light gas gun platforms in the UC Davis Shock Compression Laboratory. The diagnostic consists of an
Davies, Erik J.   +2 more
core   +1 more source

Development of techniques and associated instrumentation for high temperature emissivity measurements Quarterly progress report, 30 Sep. - 31 Dec. 1970 [PDF]

open access: yes
Emittance measurement techniques for space shuttle materials in high temperature environmental ...
Cunnington, G. R., Funai, A. I.
core   +1 more source

Measurement of Flush Temperature of Ceramics Irradiated with CO2 Laser. Application of Two-color Pyrometer Using Fused Fiber Coupler.

open access: yesJournal of the Japan Society for Precision Engineering, 1995
A new type of Infrared Radiation Pyrometer using a fused fiber coupler is made, and its characteristics are investigated theoretically and experimentally. This pyrometer can be applied to measure the flush temperature of a small area on ceramics (PSZ) when it is irradiated with CO2 laser.
Takashi UEDA   +2 more
openaire   +2 more sources

Measurement of Cutting Temperature in Interrupted Machining Using Optical Spectrometry. [PDF]

open access: yesSensors (Basel), 2023
Espinoza-Torres I   +6 more
europepmc   +1 more source

Emittance and absorptance of NASA ceramic thermal barrier coating system [PDF]

open access: yes
Spectral emittance measurements were made on a two-layer ceramic thermal barrier coating system consisting of a metal substrate, a NiCrAly bond coating and a yttria-stabilized zirconia ceramic coating.
Liebert, C. H.
core   +1 more source

In-situ measurements of alloy oxidation/corrosion/erosion using a video camera and proximity sensor with microcomputer control [PDF]

open access: yes
Two noncontacting and nondestructive, remotely controlled methods of measuring the progress of oxidation/corrosion/erosion of metal alloys, exposed to flame test conditions, are described.
Deadmore, D. L.
core   +1 more source

Infrared pyrometer for high resolution surface temperature measurement on rotating turbine blades [PDF]

open access: yes
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.
core   +1 more source

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