High immunity rigid electrical connection for e.g. gas turbine aircraft engine shaft rotation speed sensor, has cables guided in tube whose inner surface is in electrical contact with inner lining for forming high-frequency shield

摘要

#CMT# #/CMT# The connection has electrical connection cables (12) guided in a rigid metallic tube (10) whose inner surface is in electrical contact with an inner metallic lining (28) for forming a high-frequency shield for electrical connection assembly. The lining is formed by a metallic tube coupled to the rigid tube by crimping or brazing, and is formed of good electric conductor material e.g. aluminum or copper. The cables are guided in housings (24) formed in a profiled piece (26) made of flexible plastic material and extending within the rigid tube along the rigid tube. #CMT#USE : #/CMT# Used in a turbomachine e.g. gas turbine aircraft engine, shaft rotation speed sensor (claimed) for being connected to measurement probe housed in a sensor head for transporting signals from probe towards signal operating and treating circuit. #CMT#ADVANTAGE : #/CMT# The electrical connection presents a simplified construction and implementation, and is inexpensive. The profiled piece is made of flexible plastic material so that the vibrations subjected by the rigid metallic tube are dampened. The profiled piece contains metallic charges contributing to the immunity against the electromagnetic radiation in order to protect connection cables against damages and against electromagnetic disturbances affecting the transported electric signals. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a transversal cross-sectional view of a rigid electrical connection. 10 : Rigid metallic tube 12 : Electrical connection cables 24 : Housings 26 : Profiled piece 28 : Inner metallic lining.