DEVICE FOR MEASURING A FLYING DISTANCE OF A ROTATOR, CAPABLE OF GRASPING THE MOMENT WHEN A FLYING OBJECT REACHES TO A SPECIFIC LOCATION

摘要

PURPOSE: A device for measuring a flying distance of a rotator is provided to decide a flying distance because a measuring device measures a change of a central shaft rotating with a flying object.;CONSTITUTION: A device for measuring a flying distance of a rotator comprises a cylindrical sealing space(4), a central shaft(1), and a cylinder(3). The cylinder rotates around the cylindrical sealing space and the central shaft. A gap is formed in the cylinder. A measuring device comprises an optical transmitter(5) enable to rotate around the central shaft, an optical sensor(6), a measuring circuit, and a storage battery. The measuring device is arranged in the lower part of a flying object and measures an rotational extent of the central shaft rotated with the flying object.;COPYRIGHT KIPO 2012