Abstract
This paper describes a contact-type airflow sensor, based on insects' sensillar seta. Some insects such as crickets begin escape behavior by sensing a minute airflow with sensillar seta. The sensor consists of a metal cantilever and an insulation layer. Air flow bends a hair connected to the cantilever, which causes the deflection of the cantilever and the contact with the substrate. The wind tunnel tests showed the airflow sensor was able to detect the velocity of wind from 0.1m/s to 1m/s depending on the cantilever lenglth. The sensor is mounted on the surface of an insect' robot.