title: Lever controls on specialised farm equipment: some control/response stereotypes.
abstract: Linearly arranged banks of hydraulic control levers constitute common control layouts on many specialized pieces of equipment used in agriculture, especially in California. Such controls are used to control multi-function equipment with various types of articulating mechanisms performing both linear and rotary translations in order to effect pitch, roll and yaw movements; also other movements such as clamping and encircling. Stereotypes regarding the control of the motion of a cube with six degrees of freedom by a single control lever were assessed. Results generally were consistent with previous work except for the case of the up/down motion of the cube for which a strongly anomalous phenomenon was found. Stereotypes for the assignment of cube motions to sets of multiple control levers were found to be weak or non-existent.
authors.affiliation: Dept of Agricultural Engineering, California Polytechnic State University, San Luis Obispo, CA 93407, USA.
authors.forename: M S
authors.initials: MS
authors.lastname: Kaminaka
authors.forename: E A
authors.initials: EA
authors.lastname: Egli