A MODIFIED PETTERSON OLFACTOMETER

摘要

The original four-armed Pettersson olfactometer was modified to make it suitable to study the behavioural responses of insects to flavour volatile compounds. In the first modification, the volatile compounds for comparison were located in vial chambers (4). The outer end of each chamber (4) was attached to a filter (4b) and the inner end of each chamber (4) was attached to an inlet (1c) of one section of the olfactometer arena (1). In the second modification, the vial chambers (4) were replaced with bottles (11) fitted with two-hole rubber stoppers (12) but all other equipment remained the same. A suction pump (8) and flow meter (9) were connected to a central outlet (1b) of the olfactometer.