Gluing interface qualification test results and gluing process ‎development of the EUCLID near-infrared spectro-photometer optical ‎assembly

2016 ◽  
Author(s):  
A. Mottaghibonab ◽  
H. Thiele ◽  
E. Gubbini ◽  
M. Dubowy ◽  
C. Gal ◽  
...  
Keyword(s):  
Near Infrared ◽  
Process Development ◽  
Test Results ◽  
Qualification Test

scholarly journals Qualification test results for the TIRS cryocooler

2012 ◽  
Author(s):  
Eric Marquardt ◽  
Wilfred Gully ◽  
Jennifer Marquardt ◽  
Robert Boyle ◽  
Taylor Hale
Keyword(s):  
Test Results ◽  
Qualification Test

Design and Testing of ITER TF Coil Insulations

2011 ◽  
Vol 21 (3) ◽  
pp. 3127-3131 ◽  
Author(s):  
Matthew W. Hooker ◽  
Jennifer K. Walsh ◽  
Mark W. Haynes ◽  
Naseem A. Munshi
Keyword(s):  
Radiation Exposure ◽  
Large Scale ◽  
Mechanical Performance ◽  
International Organization ◽  
Vacuum Impregnation ◽  
Test Results ◽  
Qualification Test ◽  
Insulation System ◽  
Cyanate Ester Resin ◽  
Design And Testing

The design of the ITER Toroidal Field (TF) coils requires an insulation system that is amenable to the very large scale vacuum impregnation processes planned for the construction of these devices, and that will provide reliable electro-mechanical performance after radiation exposure. To address this need, CTD has developed an epoxy/cyanate ester resin system designated CTD-425. This material meets the processing requirements for use in the TF coils, and cyclic mechanical testing of conductor assemblies has demonstrated its electro-mechanical strength after 60,000 mechanical cycles. In addition, this product recently passed radiation exposure tests coordinated by the ITER International Organization and is now qualified for use in constructing the TF coils. This paper summarizes the performance characterization and qualification test results for this insulation.

JWST’s near infrared spectrograph status and first OTIS test results

2018 ◽  
Author(s):  
Ralf Ehrenwinkler ◽  
Peter Mosner ◽  
Hermann Karl ◽  
Martin Altenburg ◽  
Marc Maschmann ◽  
...  
Keyword(s):  
Near Infrared ◽  
Test Results

scholarly journals Cavity Ring-Down Methane Sensor for Small Unmanned Aerial Systems

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 454 ◽  
Author(s):  
Benjamin Martinez ◽  
Thomas W. Miller ◽  
Azer P. Yalin
Keyword(s):  
Near Infrared ◽  
High Sensitivity ◽  
Unmanned Aerial Systems ◽  
Test Results ◽  
Methane Sensor ◽  
Open Path ◽  
Low Mass ◽  
Aerial Systems ◽  
High Finesse ◽  
Cavity Ring Down

We present the development, integration, and testing of an open-path cavity ring-down spectroscopy (CRDS) methane sensor for deployment on small unmanned aerial systems (sUAS). The open-path configuration used here (without pump or flow-cell) enables a low mass (4 kg) and low power (12 W) instrument that can be readily integrated to sUAS, defined here as having all-up mass of <25 kg. The instrument uses a compact telecom style laser at 1651 nm (near-infrared) and a linear 2-mirror high-finesse cavity. We show test results of flying the sensor on a DJI Matrice 600 hexacopter sUAS. The high sensitivity of the CRDS method allows sensitive methane detection with a precision of ~10–30 ppb demonstrated for actual flight conditions. A controlled release setup, where known mass flows are delivered, was used to simulate point-source methane emissions. Examples of methane plume detection from flight tests suggest that isolated plumes from sources with a mass flow as low as ~0.005 g/s can be detected. The sUAS sensor should have utility for emissions monitoring and quantification from natural gas infrastructure. To the best of our knowledge, it is also the first CRDS sensor directly deployed onboard an sUAS.

Surface Defects Detection of Red Jujube Based on Near-Infrared Vision System

2013 ◽  
Vol 303-306 ◽  
pp. 573-577
Author(s):  
Min Xu ◽  
Yue Ma ◽  
Shuai Chen
Keyword(s):  
Machine Vision ◽  
Near Infrared ◽  
Surface Defects ◽  
Vision System ◽  
Infrared Image ◽  
Machine Vision System ◽  
Test Results ◽  
Quality Factors ◽  
Important Quality ◽  
Infrared Vision

Quality evaluation of agricultural and food products is important for processing, inventory control, and marketing. Fruit surface defects are important quality factors for the jujube industry, especially for high quality jujubes such as Xinjiang red jujube. This paper presents the development and test results of a machine vision system for automatic jujube surface defects detection. Unlike other near-infrared spectrometric approaches, the developed machine vision system uses reflective near-infrared image to evaluate jujube quality by analyzing two-dimensional images. Near-infrared image, vision algorithms and a variety of operational details of the system, including cameras, optics, illumination, and fruit carrier are presented. The complete machine vision system has been built, and the experimental results show that the designed machine vision system is feasible to detect the defects of jujubes.

scholarly journals JWST near infrared detectors: latest test results

2009 ◽  
Author(s):  
Erin C. Smith ◽  
Bernard J. Rauscher ◽  
David Alexander ◽  
Brian L. Clemons ◽  
Chuck Engler ◽  
...  
Keyword(s):  
Infrared Detectors ◽  
Near Infrared ◽  
Test Results

scholarly journals Detection of illegally added drugs in dietary supplements by near-infrared spectral imaging

2014 ◽  
Vol 07 (06) ◽  
pp. 1450032 ◽  
Author(s):  
Rui Zhang ◽  
Lihui Yin ◽  
Shaohong Jin
Keyword(s):  
Dietary Supplements ◽  
Correlation Coefficient ◽  
False Positive ◽  
Near Infrared ◽  
Spectral Imaging ◽  
Test Results ◽  
Infrared Spectral ◽  
Positive Results

The application to detect illegally added drugs in dietary supplements by near-infrared spectral imaging was studied with the focus on nifedipine, diclofenac and metformin. The method is based on near-infrared spectral images correlation coefficient to detect illegally added drugs. The results comply 100% with HPLC methods test results with no false positive results.

Device Channel Temperature Measurement Using NIR Emission

2017 ◽  
Author(s):  
Alan J. Weger ◽  
Franco Stellari ◽  
Peilin Song
Keyword(s):  
Temperature Measurement ◽  
Integrated Circuit ◽  
Heat Dissipation ◽  
Near Infrared ◽  
Process Development ◽  
Emission Model ◽  
Emission Data ◽  
Channel Temperature ◽  
Nir Emission ◽  
On Chip

Abstract In this paper, we present a technique for device temperature measurement using spontaneous near infrared (NIR) emission from an Integrated Circuit (IC). By leveraging modeling and data analysis, time-integrated emission measurements are used to estimate the temperature increase due to switching activity inside the channel of CMOS transistors. The non-invasive nature of the technique allows one to reliably monitor the temperature of any device on-chip without the need for circuit modifications or dedicated on-chip sensors and with a higher spatial resolution than thermal cameras. This method has important applications for modeling heat dissipation during early process development, localizing hot spots, calibrating on-chip sensors, etc. In this paper, temperature is estimated by fitting empirical emission data to an emission model that can be solved for device channel temperature.

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