Communications – electrical: acoustic wave systems and devices – Signal transducers – Vibrator-type transmitter
Patent
1984-12-03
1987-01-27
Jordan, Charles T.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Vibrator-type transmitter
367 75, 181119, 181121, 181401, H04R 1100, G01V 100, G01V 104
Patent
active
046399054
ABSTRACT:
A dual mode vibrator assembly for selectively generating either pressure wave or shear wave signals in the earth has a single inertia mass with a plurality of vertically parallel offset cylinder bores and at least one horizontal cylinder bore extending therethrough. Each cylinder bore reciprocably retains a piston member and is in fluid communication with a fluid source. The lower ends of the vertical piston members are connected to a base plate to generate pressure waves. A foot member is connected to each end of the horizontal piston member and interconnected by anti-roll rails in sliding relationship with the inertia mass. Cleats are connected to the bottom of each foot member to engage the earth for generating shear waves. A manifold directs fluid from a servo-valve either to passages leading to the vertical cylinder bores for pressure wave operation or to the horizontal cylinder bore for shear wave operation.
REFERENCES:
patent: 3306391 (1967-02-01), Bays
patent: 4056164 (1977-11-01), Johnston
patent: 4135598 (1979-01-01), Stafford
patent: 4135599 (1979-01-01), Fair
patent: 4143736 (1979-03-01), Fair
patent: 4244437 (1981-01-01), Fulkerson
patent: 4291780 (1981-09-01), Fulkerson
patent: 4321981 (1982-04-01), Waters
patent: 4390077 (1983-06-01), Fulkerson
patent: 4410062 (1983-10-01), Mifsud
Jordan Charles T.
Kane Barry C.
Knox William A.
Steinberger Brian S.
Western Geophysical Co. of America
LandOfFree
Dual-mode vibrator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual-mode vibrator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual-mode vibrator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-862906