Pressure sensor with a compressible insert to prevent damage from freezing

摘要: A pressure sensor is provided with a compressible insert that disposed within an internal opening of potentially frangible component, such as tubular glass member. If condensate forms the member, freezing can cause it to expand and damage The absorbs expansion liquid by compressing prevents expanding from cracking insert, in particularly preferred embodiment this invention, has extending therethrough facilitate transmission throughout aligned openings sensor. In one particular embodiment, silicone die etched provide cavity corresponding diaphragm portion on which piezoresistive elements are disposed. silicon attached, anodic bonding, member is, turn, attached support be metallic conduit structure connection tube or hose.