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Altti Torkkeli

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Publication

Featured researches published by Altti Torkkeli.

Archive | 1995

Single-channel gas concentration measurement method and apparatus using a short-resonator Fabry-Perot interferometer

Yrjö Koskinen; Ari Lehto; Simo Tammela; Martti Blomberg; Markku Orpana; Altti Torkkeli

Archive | 1997

Electrically adjustable optical filter

Ari Lehto; Martti Blomberg; Altti Torkkeli

Archive | 1995

Miniaturized fabry-perot spectrometer for optical analysis

Ari Lehto; Stefan Lindblad; Altti Torkkeli; Martti Blomberg

Archive | 1994

Single-channel gas concentration measurement method and apparatus

Yrjoe Koskinen; Ari Lehto; Simo Tammela; Martti Blomberg; Markku Orpana; Altti Torkkeli

Archive | 1994

Single-channel gas concentration measurement apparatus

Martti Blomberg; Yrjö Koskinen; Ari Lehto; Markku Orpana; Simo Tammela; Altti Torkkeli

Archive | 1996

Electrically modulatable thermal radiant source with specific filament

Martti Blomberg; Altti Torkkeli; Stefan Lindblad; Ari Lehto

Archive | 1998

Optically black surface for producing the same

Martti Blomberg; Altti Torkkeli; Ari Lehto

Archive | 1998

Optically black absorption or emission surface and method for producing the same

Martti Blomberg; Ari Lehto; Altti Torkkeli

Archive | 1998

Optisch schwarze Absorptions- oder Emissionsfläche und Herstellungsverfahren Optical black absorption or emission surface and production method

Martti Blomberg; Altti Torkkeli; Ari Lehto

Archive | 1996

Elektrisch modulierbare Wärmestrahlungsquelle Electrically modulated radiant heat source

Martti Blomberg; Altti Torkkeli; Stefan Lindblad; Ari Lehto

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Collaboration

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Ari Lehto

Helsinki University of Technology

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Martti Blomberg

VTT Technical Research Centre of Finland

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Simo Tammela

VTT Technical Research Centre of Finland

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