FR3099825B1 - Capacitive sensor, abradable element including this sensor and rotor equipped with this abradable element. - Google Patents

Capacitive sensor, abradable element including this sensor and rotor equipped with this abradable element. Download PDF

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Publication number
FR3099825B1
FR3099825B1 FR1908953A FR1908953A FR3099825B1 FR 3099825 B1 FR3099825 B1 FR 3099825B1 FR 1908953 A FR1908953 A FR 1908953A FR 1908953 A FR1908953 A FR 1908953A FR 3099825 B1 FR3099825 B1 FR 3099825B1
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FR
France
Prior art keywords
sensor
abradable element
capacitive sensor
measuring
abradable
Prior art date
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Active
Application number
FR1908953A
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French (fr)
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FR3099825A1 (en
Inventor
Afaf Sornin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aircraft Engines SAS
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Safran Aircraft Engines SAS
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Publication date
Application filed by Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1908953A priority Critical patent/FR3099825B1/en
Publication of FR3099825A1 publication Critical patent/FR3099825A1/en
Application granted granted Critical
Publication of FR3099825B1 publication Critical patent/FR3099825B1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position

Abstract

La présente invention concerne un capteur capacitif (5) destiné à la mesure de jeu dans une turbomachine. Conformément à l’invention, ce capteur comprend une structure alvéolaire de mesure (50), à plusieurs alvéoles (51), formées par des puits débouchant sur une face de mesure(52), cette structure alvéolaire (50) étant réalisée dans un matériau électriquement conducteur, et dans lequel la structure alvéolaire (50) de mesure forme la première des deux électrodes dudit capteur capacitif. L’invention concerne également un élément abradable d’une turbine de turbomachine comprenant un tel capteur capacitif et un ensemble de turbine de turbomachine équipé d’un tel élément abradable. Figure pour l’abrégé : Fig.4The present invention relates to a capacitive sensor (5) intended for measuring clearance in a turbomachine. According to the invention, this sensor comprises a measuring cell structure (50), with several cells (51), formed by wells opening out onto a measuring face (52), this cell structure (50) being made of a material electrically conductive, and in which the measuring honeycomb structure (50) forms the first of the two electrodes of said capacitive sensor. The invention also relates to an abradable element of a turbomachine turbine comprising such a capacitive sensor and a turbomachine turbine assembly equipped with such an abradable element. Figure for the abstract: Fig. 4

FR1908953A 2019-08-05 2019-08-05 Capacitive sensor, abradable element including this sensor and rotor equipped with this abradable element. Active FR3099825B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1908953A FR3099825B1 (en) 2019-08-05 2019-08-05 Capacitive sensor, abradable element including this sensor and rotor equipped with this abradable element.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1908953A FR3099825B1 (en) 2019-08-05 2019-08-05 Capacitive sensor, abradable element including this sensor and rotor equipped with this abradable element.
FR1908953 2019-08-05

Publications (2)

Publication Number Publication Date
FR3099825A1 FR3099825A1 (en) 2021-02-12
FR3099825B1 true FR3099825B1 (en) 2021-07-16

Family

ID=68211077

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1908953A Active FR3099825B1 (en) 2019-08-05 2019-08-05 Capacitive sensor, abradable element including this sensor and rotor equipped with this abradable element.

Country Status (1)

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FR (1) FR3099825B1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3006434B1 (en) * 2013-05-30 2016-04-01 Snecma ABRADABLE ELECTRODE GAME MEASURING SENSOR

Also Published As

Publication number Publication date
FR3099825A1 (en) 2021-02-12

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