PROXIMITY SENSOR FOR AIRCRAFT AND HAVING A HYDRAULIC FUSE

摘要

A sensor (1) comprising:
a housing (2) defining an internal volume (3);a movable part (4);detector means (5) for detecting movement of the movable part (4);transfer means (6) passing through a first opening (7) of the housing (2) to control movement of the movable part (4) from a first external zone (8); andfirst sealing means (9) for opposing the passage of fluid coming from the first external zone (8) towards said internal volume (3).;The housing (2) includes a second opening (10) extending between the internal volume (3) and a second external zone (11); and
second sealing means (12) between the internal volume (3) and the second external zone (11), the second sealing means being adapted to break so as to allow fluid to pass as soon as a first predetermined pressure difference is exceeded.

主权项

1. A sensor (1) comprising:
a housing (2) defining an internal volume (3) that is internal to the housing; a movable part (4) situated inside said internal volume (3) of the housing; detector means (5) for detecting a movement of said movable part (4) relative to the housing (2); transfer means (6) passing through a first opening (7) in the housing (2) and arranged to act from a first external zone (8) external to the housing (2) to cause said movable part (4) situated inside said internal volume (3) to move; and first sealing means (9) arranged relative to the housing (2) and to the transfer means (6) to oppose fluid passing from the first external zone (8) external to the housing (2) towards said internal volume (3) of the housing via said first opening (7) of the housing,the sensor being characterized in that:
the housing (2) further includes a second opening (10) extending between said internal volume (3) of the housing (2) and a second external zone (11) external to the housing; and second sealing means (12) arranged to oppose fluid passing via said second opening (10) between the internal volume (3) and the second external zone (11), at least some of the second sealing means (12) being adapted to break to allow fluid to pass as soon as the internal pressure in the internal volume (3) exceeds the external pressure in the second external zone (11) by a first predetermined pressure difference.