G - Physics – 01 – T
Patent
G - Physics
01
T
74/238, 358/5
G01T 7/00 (2006.01) G01N 23/207 (2006.01)
Patent
CA 1135877
PHN 9077 19.7.1978 ABSTRACT: A mechanism for varying the distance between a detector and a measuring crystal in an X-ray spectrometer. The crystal is arranged on a rotatable shaft and the detector is arranged on an arm which can perform a circular movement about the crystal shaft. The crystal shaft and the detector arm are coupled so that a rotation of the crystal shaft through an angle ? is accompanied by a rotation of the detector arm through an angle 2 ? . A first pulley having a radius r is mounted on the crystal shaft and a second disc having a radius 2r is rotatably mounted on the crystal shaft. A belt or cord is guided over each one of two guide rollers. One end of each of these belts is permanently connected to the first pulley, whilst its other end is permanently connected to the second pulley.
323255
Schinkel Willem
Versluijs Cornelis
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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