A turbine machine, gap-measuring system, and method for...

G - Physics – 01 – B

Patent

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G01B 7/14 (2006.01) F01D 21/04 (2006.01)

Patent

CA 2698621

The invention relates to a turbomachine having a rotor (10) comprising rotor blades (12), having a rotor housing (16) which surrounds at least sections of the rotor (10) or the rotor blade (12) so as to form a rotor gap (d), and having a gap-measuring system (18) which is coupled to a capacitive sensor device (20) having an electrode and a counterelectrode for determining measured capacitance values (C) which characterize the rotor gap (d), wherein the rotor (10) or the rotor blades (12) is/are connected as the electrode of the sensor device (20), wherein at least part (22) of the rotor housing (16) is connected as the counterelectrode. The invention also relates to a gap-measuring system (18) and to a method for determining a rotor gap (d) between a rotor (10) comprising rotor blades (12) and a rotor housing (16) of a turbomachine, which rotor housing surrounds at least sections of the rotor (10) or the rotor blades (12).

L'invention concerne une machine d'écoulement qui présente un rotor (10) qui comprend des aubes (12) de rotor, un boîtier (16) de rotor qui entoure au moins des parties du rotor (10) et des aubes (12) du rotor en formant un interstice de rotor (d), et un système (18) de mesure d'interstice qui est accouplé à un dispositif de détecteur (20) capacitif doté d'une électrode et d'une contre-électrode pour déterminer des valeurs (C) de mesure de capacité qui caractérisent l'interstice (d) du rotor, le rotor (10) et les aubes (12) du rotor étant raccordés en tant qu'électrode du dispositif de détecteur (20), au moins une partie (22) du boîtier (16) du rotor étant raccordée comme contre-électrode. L'invention concerne en outre un système (18) de mesure d'interstice ainsi qu'un procédé de détermination de l'interstice (d) d'un rotor entre un rotor (10) qui comprend des aubes (12) de rotor et un boîtier (16) de rotor qui entoure au moins certaines parties du rotor (10) et des aubes (12) du rotor d'une machine d'écoulement.

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