Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Kenneth L Telschow"'
Publikováno v:
Research in Nondestructive Evaluation. 23:197-206
We present a hybrid acoustic imaging system to directly visualize acoustic waves propagating within a single anisotropic crystalline plate. An acoustic lens (point focus, continuous wave, frequency; 180 MHz) was used to form a point source (diameter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f34ab493fc4c5156ab3c43d2c857661
https://doi.org/10.1080/09349847.2012.661522
https://doi.org/10.1080/09349847.2012.661522
Publikováno v:
Nuclear Technology. 159:202-207
This paper describes the first noncontact elastic vibration measurements of an object in a high gamma radiation field. Using a laser-coupled resonant ultrasound technique, the vibration modes of an...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::024115ca1986cb78eaaf1793bb5e88c1
https://doi.org/10.13182/nt07-a3865
https://doi.org/10.13182/nt07-a3865
Autor:
Joseph Peter Gerhardstein, Pierre H. Brodeur, Emmanuel Lafond, Kenneth L Telschow, Charles C. Habeger
Publikováno v:
Ultrasonics. 40:1019-1023
Photorefractive interferometers have been employed for the detection of ultrasound in metals and composites since 1991 [1–4]. Instances of laser-generated ultrasound and laser-based detection in paper were reported in 1996 [5]. More recently, bismu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20846ff9351d64377a92ac62825d1c47
https://doi.org/10.1016/s0041-624x(02)00252-4
https://doi.org/10.1016/s0041-624x(02)00252-4
Autor:
Kenneth L. Telschow, Vance A. Deason
Publikováno v:
Ultrasonics. 40:1025-1035
An important material property in the paper industry is the anisotropic stiffness distribution due to the fibrous microstructure of paper and to processing procedures. Ultrasonic methods offer a means of determining the stiffness of sheets of paper f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::306846d409c0d80e535694717f1843ed
https://doi.org/10.1016/s0041-624x(02)00253-6
https://doi.org/10.1016/s0041-624x(02)00253-6
Publikováno v:
Ultrasonics. 40:1065-1077
The use of laser ablation as a means of generating ultrasonic waves in liquid metals is studied in this paper. A mathematical model for predicting the onset of ablation is developed, as is a model of the ablation process based on steady state, one-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71f762ea7a2447809a49df5853b19cf8
https://doi.org/10.1016/s0041-624x(02)00257-3
https://doi.org/10.1016/s0041-624x(02)00257-3
Publikováno v:
Applied optics. 39(24)
We studied the two-wave mixing anisotropic diffraction process in GaAs for demodulation of static and dynamic phase encoded signals. The static results quantitatively agreed with a previous theoretical model for cubic crystals. This model has been de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d633df5786450fca4e60265b4fa0df4
https://pubmed.ncbi.nlm.nih.gov/18350021
https://pubmed.ncbi.nlm.nih.gov/18350021
Publikováno v:
Acoustical Imaging ISBN: 9781402088223
We present a hybrid acoustic imaging system to directly visualize acoustic waves propagating within a single anisotropic crystalline plate. A high frequency acoustic point focus lens was used to form a small point source within the plate. A laser int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b8cf7459d77a5f750e01cdaa77321d3
https://doi.org/10.1007/978-1-4020-8823-0_24
https://doi.org/10.1007/978-1-4020-8823-0_24
Publikováno v:
SPIE Proceedings.
There is considerable interest in detecting objects such as landmines shallowly buried in loose earth or sand. Various techniques involving microwave, acoustic, thermal and magnetic sensors have been used to detect such objects. Acoustic and microwav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96f3313cc69d8595b0458edce298852b
https://doi.org/10.1117/12.504832
https://doi.org/10.1117/12.504832
Publikováno v:
SPIE Proceedings.
The INEEL has developed a photorefractive ultrasonic imaging technology that records both phase and amplitude of ultrasonic waves on the surface of solids. Phase locked dynamic holography provides full field images of these waves scattered from subsu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9ab8bfbc99a35ee550247132f9f624f
https://doi.org/10.1117/12.449372
https://doi.org/10.1117/12.449372
Autor:
Kenneth L. Telschow, Robert S. Schley
Publikováno v:
SPIE Proceedings.
Photoacoustic spectroscopy of gases is one of the most sensitive spectroscopic techniques available, often achieving part per million (ppm) or part per billion (ppb) sensitivity. This technique is usually performed by containing the gas sample within
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::706f24f70dbd9ef2cafca292ccf2df65
https://doi.org/10.1117/12.417451
https://doi.org/10.1117/12.417451