Improvement in the performance of evanescent wave chemical sensors by special waveguide structures

1991 ◽  
Author(s):  
George Stewart ◽  
Brian Culshaw ◽  
Douglas F. Clark ◽  
Ivan Andonovic
Keyword(s):  
Chemical Sensors ◽  
Evanescent Wave

Molecularly Imprinted Polymers and Infrared Evanescent Wave Spectroscopy. A Chemical Sensors Approach

1999 ◽  
Vol 71 (20) ◽  
pp. 4786-4791 ◽  
Author(s):  
Michael Jakusch ◽  
M. Janotta ◽  
Boris Mizaikoff ◽  
Klaus Mosbach ◽  
Karsten Haupt
Keyword(s):  
Chemical Sensors ◽  
Molecularly Imprinted Polymers ◽  
Evanescent Wave ◽  
Molecularly Imprinted ◽  
Imprinted Polymers

Sapphire Fiber Evanescent Wave Absorption in Turbid Media

2009 ◽  
Vol 63 (8) ◽  
pp. 932-935 ◽  
Author(s):  
Jian Zhang ◽  
Feibing Xiong ◽  
Nicholas Djeu
Keyword(s):  
Glassy Carbon ◽  
Chemical Sensors ◽  
Evanescent Wave ◽  
Fiber Optic ◽  
Wave Interaction ◽  
Carbon Powder ◽  
Control Applications ◽  
Wave Absorption ◽  
Water Band ◽  
Sapphire Fiber

The influence of particulates on sapphire fiber evanescent wave absorption by water has been studied. Suspensions containing microsized graphite flakes and glassy carbon powder were used. Conventional free-space transmittance measurements of these samples showed strong absorption and scattering, which severely screened the absorption by water. However, the absorption on the water band determined from the evanescent wave interaction was unaffected by the presence of the graphite flakes. These results indicate that fiber-optic evanescent wave chemical sensors may be suitable for process control applications involving turbid reactor streams.

Silica optical fibers for the development of evanescent-wave chemical sensors

1997 ◽  
Author(s):  
Vlastimil Matejec ◽  
Marie Pospisilova ◽  
Daniela Berkova ◽  
Miroslav Chomat ◽  
Milos Hayer
Keyword(s):  
Optical Fibers ◽  
Chemical Sensors ◽  
Evanescent Wave

Planar-surface-waveguide evanescent-wave chemical sensors

1995 ◽  
Vol 51 (2-3) ◽  
pp. 165-171 ◽  
Author(s):  
Ramakant Srivastava ◽  
Carmen Bao ◽  
Carlos Gómez-Reino
Keyword(s):  
Chemical Sensors ◽  
Evanescent Wave ◽  
Planar Surface ◽  
Surface Waveguide

Contactless functional testing of grating-coupled evanescent wave (bio)chemical sensors

2011 ◽  
Vol 159 (1) ◽  
pp. 27-32 ◽  
Author(s):  
David Pietroy ◽  
Olivier Parriaux ◽  
Thibaut Epalle ◽  
Svetlen Tonchev
Keyword(s):  
Chemical Sensors ◽  
Evanescent Wave ◽  
Functional Testing

Cavity-containing rhenium metallacycle treated evanescent wave infrared chemical sensors for the selective determination of odorous amines in the atmosphere

2018 ◽  
Vol 254 ◽  
pp. 424-430 ◽  
Author(s):  
Genin Gary Huang ◽  
Chung-Jay Lee ◽  
Jyisy Yang ◽  
Zong-Zhan Lu ◽  
Malaichamy Sathiyendiran ◽  
...  
Keyword(s):  
Chemical Sensors ◽  
Evanescent Wave ◽  
Selective Determination

Gondola-shaped tetra-rhenium metallacycles modified evanescent wave infrared chemical sensors for selective determination of volatile organic compounds

Talanta ◽  
2011 ◽  
Vol 85 (1) ◽  
pp. 63-69 ◽  
Author(s):  
Genin Gary Huang ◽  
Chung-Jay Lee ◽  
Bo-Chan Tsai ◽  
Jyisy Yang ◽  
Malaichamy Sathiyendiran ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chemical Sensors ◽  
Evanescent Wave ◽  
Selective Determination ◽  
Volatile Organic

Fibre optic chemical sensors based on evanescent wave interactions in sol-gel-derived porous coatings

1994 ◽  
Vol 2 (1-3) ◽  
pp. 661-665 ◽  
Author(s):  
B. D. Mac Craith ◽  
C. Mcdonagh ◽  
G. O'Keeffe ◽  
T. Butler ◽  
B. O'Kelly ◽  
...  
Keyword(s):  
Chemical Sensors ◽  
Evanescent Wave ◽  
Sol Gel ◽  
Fibre Optic ◽  
Wave Interactions ◽  
Porous Coatings

Comparison of two devices for measuring exercise transcutaneous oxygen pressures in patients with claudication

VASA ◽  
2015 ◽  
Vol 44 (5) ◽  
pp. 355-362 ◽  
Author(s):  
Marie Urban ◽  
Alban Fouasson-Chailloux ◽  
Isabelle Signolet ◽  
Christophe Colas Ribas ◽  
Mathieu Feuilloy ◽  
...  
Keyword(s):  
Oxygen Pressure ◽  
Optical Sensors ◽  
Chemical Sensors ◽  
Transcutaneous Oxygen ◽  
Starting Values ◽  
Two Systems ◽  
Transcutaneous Oxygen Pressure ◽  
New Sensors ◽  
Changes Over Time ◽  
Over Time

Abstract. Summary: Background: We aimed at estimating the agreement between the Medicap® (photo-optical) and Radiometer® (electro-chemical) sensors during exercise transcutaneous oxygen pressure (tcpO2) tests. Our hypothesis was that although absolute starting values (tcpO2rest: mean over 2 minutes) might be different, tcpO2-changes over time and the minimal value of the decrease from rest of oxygen pressure (DROPmin) results at exercise shall be concordant between the two systems. Patients and methods: Forty seven patients with arterial claudication (65 + / - 7 years) performed a treadmill test with 5 probes each of the electro-chemical and photo-optical devices simultaneously, one of each system on the chest, on each buttock and on each calf. Results: Seventeen Medicap® probes disconnected during the tests. tcpO2rest and DROPmin values were higher with Medicap® than with Radiometer®, by 13.7 + / - 17.1 mm Hg and 3.4 + / - 11.7 mm Hg, respectively. Despite the differences in absolute starting values, changes over time were similar between the two systems. The concordance between the two systems was approximately 70 % for classification of test results from DROPmin. Conclusions: Photo-optical sensors are promising alternatives to electro-chemical sensors for exercise oximetry, provided that miniaturisation and weight reduction of the new sensors are possible.

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