SUPPORT MEMBER FOR PRESSURE SENSOR

摘要

A support for supporting an elongate piezo electric pressure sensor, e.g. a piezo electric coaxial cable, comprises a cylindrical hollow support member and a potting material located inside the support member. The support member has a tensile modulus of elasticity E in the circumferential direction, and the potting material has a bulk modulus of elasticity Kp governed by the inequalities 2Kp + ? 10 GPa and ? 0.02, where T is the wall thickness and R is the radius of the support member. The support members has at least one helical depression in its external surface that extends along the support member for locating the piezo electric sensor.