Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Risto A. Myllylae"'
Publikováno v:
SPIE Proceedings.
This paper studies the correlation between the time-of-flight (TOF) of laser pulses and the talc content of pulp. Samples of thermomechanical pulp (TMP) and talc were made up with consistency values ranging from 0.0% to 3.0% and increasing by steps o
Publikováno v:
SPIE Proceedings.
Publikováno v:
SPIE Proceedings.
Optical coherence tomography (OCT) is used mainly for noninvasive cross-sectional imaging in biological systems. In this technique, a lateral scanning low-coherence interferometer is employed to produce a two-dimensional image of an object's internal
Publikováno v:
SPIE Proceedings.
Optical time-resolved spectroscopy using optical fibers opens up new possibilities for research on highly scattering materials. We present a system that measures the time of fligh distribution of light propagating through such materials. The system e
Autor:
Risto A. Myllylae, Zuomin Zhao
Publikováno v:
SPIE Proceedings.
The near-infrared photoacoustic technique is recognized as a potential method for the non-invasive determination of human glucose, because near-infrared light can incident a few millimeters into human tissue, where it produces an acoustic wave capabl
Publikováno v:
Coherence Domain Optical Methods in Biomedical Science and Clinical Applications V.
In this study, a noninvasive laser Doppler measurement method based on the self-mixing effect of a diode laser was used to measure baroreflex regulation, which is manifest in the blood pressure signal as a 0.1 Hz sinusoidal variation. The laser Doppl
Autor:
Mika Jurvakainen, Hannu Lahtinen, Harri Kopola, Pekka Suopajaervi, Veijo Lyöri, P. Peltomaki, Mikko Heikkinen, Antti Pramila, Risto A. Myllylae
Publikováno v:
Jurvakainen, M, Lahtinen, H, Peltomäki, P, Pramila, A, Lyöri, V, Myllylä, R, Heikkinen, M, Suopajärvi, P & Kopola, H 2000, Determination of far-field strain in a composite structure using time-of-flight and fabry-perot optical fiber sensors . in Applications of Optical Fiber Sensors . International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 4074, pp. 427-434, International Symposium on Applied Photonics, Glasgow, United Kingdom, 22/05/00 . https://doi.org/10.1117/12.397913
Measurement system based on a time-of-flight technique and Fabry-Perot optical fiber sensors have been used to determine the strain state in the composite structure. In theory the optical fiber causes a local disturbation to the structure such that m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdbf1de607f29fd4abb5137728f5e551
https://cris.vtt.fi/en/publications/079b6246-cbd8-496e-ac72-542fcc2e1917
https://cris.vtt.fi/en/publications/079b6246-cbd8-496e-ac72-542fcc2e1917
Publikováno v:
SPIE Proceedings.
The photoacoustic technique (laser-induced acoustic waves), which is less affected by light scattering than the optical method, is based on optical absorption and the heat properties of illuminated media. Although photoacoustic techniques have been u
Autor:
Mikko Heikkinen, Harri Kopola, Pentti Karioja, Riku Pennala, Seppo Nissilae, Risto A. Myllylae, Heikki Suni, Veijo Lyöri, Pekka Suopajaervi
Publikováno v:
SPIE Proceedings.
A novel fiber optic sensors for traffic monitoring applications are presented. They are useful for monitoring the traffic entering and leaving guarded areas, counting traffic on public roads as well as in determining lane occupancy at traffic lights.
Publikováno v:
Biomedical Systems and Technologies II.
The so-called photoacoustic technique combines optical properties, such as absorption and scattering, with acoustic properties, such as sound velocity and absorption, to monitor and measure the physical properties of materials. This paper comprises a