Vibration detector

Details Vibration detector Vibration detector

1997-10-27

1999-03-30

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367160, 367165, 367171, 310337, G01J 138, H04R 1700

Patent

active

058897313

ABSTRACT:
A vibration detector is disclosed. The vibration includes a ring (2) closed at its opposite ends by two ring ends (3, 4), that is externally covered with a sheath (11) made from an elastic material transparent to vibrations, two supporting plates (5) with a flexible central part (6) and a reinforced peripheral part (7) resting on the two ring ends. An inner cavity (8) between the two plates (5) is filled with liquid communicating through ports (10) and sheath (11) with the outside environment. Two sensitive elements (9) such as piezoelectric disks for example are fastened to the flexible central parts (6) on their faces of the interior of the cavity (8). The sensitive elements (9) are well protected from the outside environment and their sensitivity is not substantially influenced by variations in the static pressure. The invention has an application for detection of acoustic or seismic waves.

REFERENCES:
patent: 3153156 (1964-10-01), Watlington
patent: 3947644 (1976-03-01), Uchikawa
patent: 4075600 (1978-02-01), Sims et al.
patent: 4336639 (1982-06-01), Berglund
patent: 4536862 (1985-08-01), Sullivan et al.
patent: 4979219 (1990-12-01), Lin
patent: 5136549 (1992-08-01), Berglund

Affiliated with

Also associated with

Rating

Vibration detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1220847