X-ray diagnostics generator having a rotating anode x-ray tube

US5060251A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Horst Aichinger · Ergolding, DE
• Albert Moosmann · Erlangen, DE

Key dates

• Filing date: Sep 7, 1990
• Grant date: Oct 22, 1991
• Expiry date: Sep 7, 2010

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05G1/66
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An x-ray diagnostics generator which includes a rotating anode x-ray tube includes circuitry for setting the speed of rotation of the anode dependent on exposure parameters. At particular rotational speeds, the motor bearing for the rotating anode is subject to mechanical resonances, causing vibrations which can damage the bearing. A vibration detector is provided in mechanical contact with the x-ray tube, and when vibrations due to such mechanical resonances are sensed, a signal is provided from the detector to a processor which automatically slightly alters the rotational speed.