DEVICE FOR CONTROLLING TIGHTNESS OF PORTHOLES OF MANNED SPACECRAFTS Russian patent published in 2024 - IPC G01M11/08 G01M3/36 

FIELD: cosmonautics.

SUBSTANCE: invention relates to operation and safety of manned spacecrafts (SC), in particular to devices for control of air-tightness of manned spacecraft portholes. On the surface of the inner glass of the porthole facing inside the pressurized compartment of the spacecraft, the disclosed device is installed, having a mounting assembly for the device and a measuring unit. Attachment unit and the measuring unit are not rigidly connected to each other, which makes it possible to exclude or considerably reduce the effect of the attachment unit on the performed measurements. Use of at least three reference points located on a circle in the measuring unit makes it possible to install the device not strictly along the axis of the porthole, since the surface of the glass at uniform air pressure of the inner volume of the spacecraft acquires a shape close to a part of the sphere, and movement of the device along this sphere does not affect for measurements. Micrometer included in the measuring unit of the device is located in the centre of the circle symmetrically relative to the reference points and is fixed on the measuring unit.

EFFECT: improved ergonomic characteristics of the proposed device when measuring deflection of the inner glass of the porthole facing the spacecraft pressurized compartment.

1 cl, 2 dwg