Patent ID: 11953399
Assignee: THE ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A pressure sensor comprising:
a housing having an opening;
a membrane coupled to the housing at the opening, the membrane comprising a non-tensioned region bonded to the housing;
a tensioning plate positioned parallel to the membrane with a gap between the tensioning plate and the membrane; and
a bonding ring coupled between the membrane and the tensioning plate, the tensioning plate configured to apply a tensile force to the membrane through the bonding ring,
wherein the non-tensioned region is an area of the membrane outside the bonding ring,
wherein the membrane and the housing to which the membrane is coupled define a hermetically sealed cavity inside the housing; and
wherein the bonding ring comprises an adhesive and a plurality of spherical spacers, each of the plurality of spherical spacers having a single diameter, and each of the plurality of spherical spacers being an electrical insulator.