FIELD: instrumentation engineering. SUBSTANCE: meter has optical unit incorporating laser and photodetector, gravitation filter in the form of tube whose length is more that three times greater than diameter; bottom end of tube is mounted on upper surface of piping in hole and top end of tube mounts optical unit. EFFECT: improved design. 2 cl, 1 dwg
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Authors
Dates
1998-02-10—Published
1996-04-30—Filed