Piezoelectric vibration sensor

A contact sensor for detecting vibration in an external system, said contact sensor comprising:

• a housing,
• said housing comprising an attachment device for mounting said contact sensor to the external system,
• a core assembly comprising a ball bearing, a piezoelectric transducer assembly, and a biasing device, wherein said piezoelectric transducer assembly is suspended in isolation between said ball bearing and said biasing device,
• said ball bearing being disposed in contact between said housing and said piezoelectric transducer assembly, and
• wherein a vibration from the external system is transferred to said piezoelectric transducer assembly via said actuator.

A contact sensor for detecting vibration in an external system, said contact sensor comprising:

• a housing, a core assembly, and a core mount,
• said housing comprising an internal portion with a threaded inner wall,
• said core assembly comprising an actuator, a transducer assembly, a biasing device, and a base,
• said core mount comprising an externally threaded wall and a contact ledge, said contact ledge being in contact with a bottom surface of said base of said core assembly and said externally threaded wall being cooperatively structured to engage said threaded inner wall of said housing,
• wherein said transducer assembly is suspended in isolation between said actuator and said biasing device when said core mount is secured within said housing via cooperative engagement between said threaded inner wall of said housing and said externally threaded wall of said core mount,
• said actuator being disposed in contact between said housing and said transducer assembly, and
• wherein a vibration from the external system is transferred to said piezoelectric transducer assembly via said actuator.