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Proceedings Paper

Changes in time of flight in thermomechanical pulp (TMP) measured with a streak camera
Author(s): Juha Saarela; Matti Tormanen; Risto A. Myllyla
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Paper Abstract

The aim of this study was to determine the best setting for measuring time-of-flight in TMP with a streak-camera. In the first setting, referred to as straight setting, the laser, TMP sample and streak-camera were in a line. In the second setting, referred to as diagonal setting, the streak- camera was placed at a 90-degree angle to the light source. The results indicate that the diagonal setting allows an easier time-of-flight measurement than the straight one in low-consistency TMP. In medium-consistency TMP, however, there are no performance differences between the settings. Nevertheless, if drift in the laser or streak-camera necessitates the use of a reference pulse, the straight setting provides an easier measurement. Neither setting allows the measurement of high-consistency TMP.

Paper Details

Date Published: 31 May 2001
PDF: 8 pages
Proc. SPIE 4242, Saratov Fall Meeting 2000: Coherent Optics of Ordered and Random Media, (31 May 2001); doi: 10.1117/12.427738
Show Author Affiliations
Juha Saarela, Univ. of Oulu (Finland)
Matti Tormanen, Univ. of Oulu (Finland)
Risto A. Myllyla, Univ. of Oulu (Finland)


Published in SPIE Proceedings Vol. 4242:
Saratov Fall Meeting 2000: Coherent Optics of Ordered and Random Media
Dmitry A. Zimnyakov, Editor(s)

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