Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Jouko Malinen"'
Autor:
Anna Rissanen, Mikko Tuohiniemi, Uula Kantojärvi, Jarkko Antila, Antti Näsilä, Jouko Malinen, Markku Lahti, Marko Kaarre, Kai Viherkanto
Publikováno v:
Encyclopedia of Analytical Chemistry. :1-41
Publikováno v:
Moilanen, V, Kemppainen, A, Malinen, J, Känsäkoski, M & Marbach, R 2004, ' Multiplexed read out electronics implemented on LTCC substrate for PbS array ', Measurement Science and Technology, vol. 15, no. 11, pp. 2188-2192 . https://doi.org/10.1088/0957-0233/15/11/002
Infrared detector arrays are very useful for spectroscopy to realize grating spectrometers with the ability for parallel signal detection. The signals from the detector pixels are usually very weak, and they have to be amplified. Because of the large
Publikováno v:
Malinen, J, Känsäkoski, M, Rikola, R & Eddison, C 1998, ' LED-based NIR spectrometer module for hand-held and process analyser applications ', Sensors and Actuators B: Chemical, vol. 51, no. 1-3, pp. 220-226 . https://doi.org/10.1016/S0925-4005(98)00198-1
This paper discusses an electronically scanned, small size 32-wavelength NIR spectrometer unit developed for use as a building block in hand-held composition meters as well as in spectroscopic sensors for process automation. The design relies on a li
Autor:
Sergei Arcadievich Karandashov, Georgii N. Talalakin, V. Evstropov, B. A. Matveev, Jouko Malinen, Gennadii A. Gavrilov, Nikolai M. Stus, Nonna V. Zotova, Yu Sotnikova
Publikováno v:
Matveev, B, Gavrilov, G, Evstropov, V, Zotova, N, Karandashov, S A, Sotnikova, Y, Stus, N M, Talalakin, G N & Malinen, J 1997, ' Mid-infrared (3-5 μm) LEDs as sources for gas and liquid sensors ', Sensors and Actuators B: Chemical, vol. 39, no. 1-3, pp. 339-343 . https://doi.org/10.1016/S0925-4005(97)80230-4
Mid-infrared LEDs based on InGaAs, InAsSb(P) and InGaAsSb alloys with an emission band of 0.3–0.5 μm, output power in the 10–50 μW range and long-term operation up to 20 000 h have been fabricated and tested. The LED-based analyser prototypes w
Publikováno v:
Saari, H, Aallos, V-V, Holmlund, C, Malinen, J & Mäkynen, J 2010, ' Hand-Held hyperspectral imager ', Proceedings of SPIE, vol. 7680 . https://doi.org/10.1117/12.850103
VTT Technical Research Centre of Finland has developed a new low cost hand-held staring hyperspectral imager for applications previously blocked by high cost of the instrumentation. The system is compatible with standard video and microscope lenses.
Publikováno v:
Aikio, R, Lindström, H, Suopajärvi, P, Malinen, J & Mäntylä, M 2010, Low-noise moisture meter with high speed LED techniques . in Proceedings of SPIE : Next-Generation Spectroscopic Technologies III ., 768008, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 7680, SPIE Defense, Security and Sensing 2010, Orlando, Florida, United States, 5/04/10 . https://doi.org/10.1117/12.850010
Near infrared (NIR) spectroscopy can provide inexpensive, rapid and contact-free chemical content measurements for on-line, hand-held and laboratory applications. Traditionally multiwavelength NIR analyzers are based on incandescent lamp light source
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63768d5caa7e0d59627cbc0bc1b504ea
https://cris.vtt.fi/en/publications/299eb89f-ad9c-4877-a771-c373f3746b60
https://cris.vtt.fi/en/publications/299eb89f-ad9c-4877-a771-c373f3746b60
Autor:
Jarkko Antila, A. Miranto, Jouko Malinen, Mari Laamanen, Jussi Mäkynen, Anna Rissanen, Martti Blomberg, Heikki Saari
Publikováno v:
Antila, J, Miranto, A, Mäkynen, J, Laamanen, M, Rissanen, A, Blomberg, M, Saari, H & Malinen, J 2010, MEMS and piezo actuator based Fabry-Perot interferometer technologies and applications at VTT . in Proceedings of SPIE : Next-Generation Spectroscopic Technologies III ., 76800U, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 7680, SPIE Defense, Security and Sensing 2010, Orlando, Florida, United States, 5/04/10 . https://doi.org/10.1117/12.850164
Miniaturized spectrometers covering spectral regions from UV to thermal IR are of interest for several applications. For these purposes VTT has for many years been developing tuneable MEMS-based and more recently piezo-actuated Fabry-Perot Interferom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f9085637d3ad85cdc858f8884eb9d12
https://cris.vtt.fi/en/publications/5c1bfa33-c3b8-4849-b272-6c222d4c62ab
https://cris.vtt.fi/en/publications/5c1bfa33-c3b8-4849-b272-6c222d4c62ab
Publikováno v:
Malinen, J, Saari, H, Kemeny, G, Shi, Z & Anderson, C 2010, Comparative performance studies between tunable filter and push-broom chemical imaging systems . in M A Druy, C D Brown & R A Crocombe (eds), Next-Generation Spectroscopic Technologies III ., 76800E, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 7680, SPIE Defense, Security and Sensing 2010, Orlando, Florida, United States, 5/04/10 . https://doi.org/10.1117/12.850105
This paper reports instrument characterization measurements, which were recently arranged to provide comparative information on different hyperspectral chemical imaging systems. Three different instruments were studied covering both tunable filter an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e0c1d09d67ceac7742bf332afd218ae
https://cris.vtt.fi/en/publications/0f83cce9-3ffc-4539-93c6-32393533c8c3
https://cris.vtt.fi/en/publications/0f83cce9-3ffc-4539-93c6-32393533c8c3
Autor:
M. Remennyi, S.A. Karandashov, N.M. Stus, V. Shustov, Nonna V. Zotova, G. N. Talalakin, N. Il'inskaya, Jouko Malinen, B.A. Matveev
Publikováno v:
Matveev, B, Zotova, N, Karandashov, S A, Remennyi, M, Il'inskaya, N, Stus, N M, Shustov, V, Talalakin, G N & Malinen, J 1998, ' InAsSbP/InAs LEDs for the 3.3-5.5μm spectral range ', IEE proceedings: Optoelectronics, vol. 145, no. 5, pp. 254-256 . https://doi.org/10.1049/ip-opt:19982303
Room-temperature LEDs, fabricated from LPE grown InAsSb(P)/InAs heterostructures, are characterised with respect to methane (3.3 /spl mu/m), carbon dioxide (4.3 /spl mu/m) and nitric oxide (5.3 /spl mu/m) optical detection. Output power as high as 50
Publikováno v:
Moilanen, V, Kautio, K, Karioja, P, Rikola, R, Lehtomaa, J & Malinen, J 2007, Low temperature co-fired ceramics on optoelectronic sensors integration . in Optical Sensing Technology and Applications . International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 6585, International Congress on Optics and Optoelectronics, Prague, Czech Republic, 16/04/07 . https://doi.org/10.1117/12.724158
The optical analyzers used in on-line and off-line process measurements set a large variety of special demands for optical detectors, i.e. customized detectors are needed. Both the detector (array) and its read-out circuit are affected. The typical v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c707518bb2de5bcf83e63948097808c4
https://cris.vtt.fi/en/publications/cef391fe-09ac-4f5d-a35e-a572ee002836
https://cris.vtt.fi/en/publications/cef391fe-09ac-4f5d-a35e-a572ee002836