| 摘要 |
The invention relates to an optomechanical device for detecting position and for determining an angle between a reference point, which is defined in the pivot plane of a measuring beam, and an object, which moves in the same plane and onto which the measuring beam is projected when sweeping across the plane. The measuring beam, which is guided through the rotation axis of a semireflective rotating reflector, is reflected back by the object completely through this semireflective reflector while being guided to a row of photosensitive elements arranged coaxial to the rotation axis, and triggers a defining state there on the element, which corresponds to the instantaneous angular position of the object in the beam plane. An evaluating unit connected to the photosensitive elements then determines the angle between the reference point and the reflecting object by reading out the state of the photosensitive elements. This process repeats with each passage of the pivoting range of the semireflective rotating reflector so that a continuous angle tracking is ensured when the angular velocity of the semireflective rotating reflector is high compared to the velocity of angular change of the object. The position of an object in a plane can be determined while using two devices of the aforementioned type. |
