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An Improved Electronic Counting Apparatus for Use in Olfactometers

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Abstract:

In a model we described earlier (McAllan and Wood 1963) short signals sometimes did not actuate the digital counter. The new model is much more sensitive to changes in the amount of light and to pulses of shorter duration. We are interested in using 2 such counters in an olfactometer for bees, but the counter may be of interest to others. Our design is more convenient for our purposes than the phototube detector designed by Argyle and Chapman (1960).

Document Type: Research Article

Publication date: December 1, 1965

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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