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A SUCTION TRAP FOR SMALL AIRBORNE INSECTS WHICH AUTOMATICALLY SEGREGATES THE CATCH INTO SUCCESSIVE HOURLY SAMPLES
Author(s) -
JOHNSON C. G.
Publication year - 1950
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1950.tb00952.x
Subject(s) - trap (plumbing) , suction , biology , tube (container) , marine engineering , meteorology , physics , materials science , composite material , engineering
This paper describes the design and operation of a suction trap which takes in air at a constant rate in winds up to 12 m.p.h. The catch is deposited in a collecting tube into which closely fitting disks fall, one every hour, thus segregating the catch into successive hourly samples. The trap is electrically driven; it operates in all weathers and heavy rain does not disorganize the catch.