Patent ID: 8924045
Filing Date: 2014-12-30
Classification: B64C,F16H,G01M,Y10T

Abstract:
1. A control surface unit in a wind tunnel aircraft model with an apparatus for adjusting and locking a movable control surface, comprising: at least one adjustment body connected to a control surface mount, the at least one adjustment body including a disrupting profile that has a longitudinal axis that extends substantially parallel to a movement axis and a slot that extends along the longitudinal axis; a disrupting arranged in the slot of the disrupting profile; two photoelectric barriers spaced apart from each other, with a connecting line for the two photoelectric barriers extending parallel to the movement axis and the disrupting of the disrupting profile interrupts one of the photoelectric barriers during movement of the at least one adjustment body; at least one linear guide that is configured to slidably guide the at least one adjustment body along the movement access; at least one rotatably held self-locking spindle connected to the at least one adjustment body and configured to move the at least one adjustment body along the movement axis; at least one drive unit directly connected to the at least one rotatably held self-locking spindle; at least one linear positioning encoder coupled to the at least one linear guide that measures the movement of the disrupting profile; and a control unit connected to the at least one linear positioning encoder and the at least one drive unit, the control unit is configured to adjust a predetermined actuating position of the at least one adjustment body by rotation of the at least rotatably held self-locking spindle with the at least one drive unit and by comparing an actual position, detected by the at least one linear positioning encoder, of the at least one adjustment body with the predetermined actuating position, wherein the at least one drive unit is arranged on the same axis as the at least one spindle.