Patent ID: 6437860
Filing Date: 2002-08-20
Classification: G01B,G01C,G01S

Abstract:
A method for effecting an angle measurement or for the determination of an angle of position for an object, characterized in that the method comprises the use of a single beacon having a known position and rotating around its axis, which emits a single beam of light, the light emitting from the beacon being determined either previously or for the start of each measurement for a given reference bearing (R), and in which method the light emitted from the beacon is picked up by a receiver present in an object to be measured, which is provided with elements for determining, by means of the light received from the beacon, the current rotational speed of the beacon, and in which method the receiver is supplied with information about a moment the beacon is coincident with the reference bearing and about a moment the receiver picks up the light emitted from the beacon, whereby the difference between said moments and said rotational speed of the beacon can be used for determining the angular position for the receiver present in an object with respect to the reference bearing.