SUPERSONIC WAVE SENSOR CAPABLE OF INSERTING A WIRE AND A CAPACITOR INTO SOUND ABSORBING MATERIALS AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A supersonic wave sensor and a manufacturing method thereof are provided to reduce the number of processes of the soldering work, thereby making the mass production and automation possible.;CONSTITUTION: A cylindrical case(12) forms a floor. A piezoelectric element(16) is formed on the floor of the case. A sound absorbing material(18) is pressed and fixed in an opening part of the case, and equips a recess. A capacitor(20) for the temperature compensation is inserted into the recess and fixed. A first pin terminal(22a) penetrates the recess of the sound absorbing material and is connected to an electrode of the capacitor for the temperature compensation and an exposed electrode of the piezoelectric element. A second pin terminal(22b) is inserted into the recess of the sound absorbing material, fixed, and connected to other electrode of the capacitor for the temperature compensation. A lead wire(24) is inserted into the recess of the sound absorbing material, fixed, connected to an electrode of the second pin terminal and connected to other electrode in an inner wall of the case.;COPYRIGHT KIPO 2013