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- Yoshikoshi Akio
- Department of Biological and Chemical Engineering, Faculty of Engineering Gunma University
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- Toyama Yoshiharu
- Department of Biological and Chemical Engineering, Faculty of Engineering Gunma University
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- Sakanishi Akio
- Department of Biological and Chemical Engineering, Faculty of Engineering Gunma University
Bibliographic Information
- Other Title
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- リニアイメージセンサを用いたデジタル・ヘマトクリット計
- リニアイメージセンサ オ モチイタ デジタル ヘマトクリットケイ
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Description
A digital hematocrit-meter (DHM) was constructed for accurate determination of the hematocrit H by using a linear image sensor behind a tube holder: the holder and a tungsten lamp were settled on an optical bench. Intensity profiles from the sensor were fed into a computer through A/D converter vs. 1024 pixels along ca. 25mm length of a tube that is a coarse tube (id 1.1-1.2mm, Scientific Glass Inc.) or a fine tube (id 0.85±0.05mm, Nichiden Rika Glass Co.). Standard suspensions were prepared of swine red blood cell (RBC) in a physiological saline at Hs of ca. 8 to 60%. We determined three interfaces with 25μm resolution: air to medium, medium to packed RBC and packed RBC to patty at the bottom of the tube. The air-medium was located at minimal intensity (DHM-1) or at mean of two inflection points (DHM-2) near the end of the intensity profile, and the medium-RBC and the RBC-patty were given by inflection points. Data of H by DHM-1 and -2 were compared to the standard ones as well as H's with conventional turntable at 50mm and with cathetometer at 25mm and at 50mm full length of RBC suspensions in a tube. H's by DHM-2 in the fine tube were best correlated to the standard.
Journal
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- Journal of Japanese Society of Biorheology
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Journal of Japanese Society of Biorheology 16 (4), 11-17, 2002
JAPANESE SOCIETY OF BIORHEOLOGY
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Details 詳細情報について
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- CRID
- 1390001205422539136
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- NII Article ID
- 130001932053
- 80015791491
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- NII Book ID
- AN10042423
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- NDL BIB ID
- 6455746
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- ISSN
- 09134778
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed