PIEZOELECTRIC PRESSURE SENSOR AND PIEZOELECTRIC CABLE, PRESSURE AND TEMPERATURE DETECTING CABLE, PRESSURE AND TEMPERATURE DETECTING APPARATUS, PIEZOELECTRIC PLANE PRESSURE SENSOR

摘要

PURPOSE: A piezoelectric composition is provided to have a high heat stability so as to be generated without a deterioration. CONSTITUTION: The piezoelectric pressure sensor comprises a piezoelectric composition which includes a chlorine-processed polyethylene and a piezoelectric ceramic powder and is sandwiched between two conductors. The piezoelectric cable comprises a piezoelectric composition layer (2) for surrounding an internal conductor (1) by a circular form, wherein the piezoelectric composition layer is a material comprising a chlorine-processed polyethylene and a piezoelectric ceramic powder; an external conductor (3) coupled with the piezoelectric composition layer and configured for a metal layer (31) to be connected to a polymer membrane (32); and a protective jacket (4) for surrounding the external conductor, wherein the protective jacket is configured with an insulation and elastic material.