Patent ID: 8833144
Filing Date: 2014-09-16
Classification: B29C,B29K

Abstract:
1. A method of molding a composite layup inside an autoclave, comprising: using a plurality of openings at differing measurement locations in a vacuum bag inside the autoclave; using vacuum pressure sensors attached to the bag respectively overlying the openings, the vacuum pressure sensors individually including a MEMS device associated with a ring and an open area within the ring only partially filled with pressure transmitting gel; using the vacuum pressure sensors to measure the vacuum within the bag at the measurement locations through the gel of the individual vacuum pressure sensors; coupling a fluid pressure sensor with the interior of the bag, the fluid pressure sensor including a MEMS device associated with a ring and an open area within the ring filled with pressure transmitting gel; measuring a fluid pressure inside the bag through the gel of the fluid pressure sensor; and collecting the measured vacuum pressures and the measured fluid pressure at a location adjacent the composite layup.