PT69300A - Base plate and carth coupling assembly for shear-wave transducers - Google Patents
Base plate and carth coupling assembly for shear-wave transducersInfo
- Publication number
- PT69300A PT69300A PT6930079A PT6930079A PT69300A PT 69300 A PT69300 A PT 69300A PT 6930079 A PT6930079 A PT 6930079A PT 6930079 A PT6930079 A PT 6930079A PT 69300 A PT69300 A PT 69300A
- Authority
- PT
- Portugal
- Prior art keywords
- shear
- carth
- piston
- base plate
- coupling assembly
- Prior art date
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
A seismic transducer generates waves in an elastic medium and is partic. applicable to generation of i.f. shear waves. It includes a mass member having parallel hydraulic cylinders with a piston in each one. Each piston has a pair of oppositely extending rods. A frame, interconnecting the ends of the piston rods, has a base surface for engaging a surface of the elastic medium. A series of ports within the pistons and frame enables high pressure fluid to be communicated to the cylinder in such a manner as to cause simultaneous reciprocation of the pistons relative to the mass member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT6930079A PT69300A (en) | 1979-03-01 | 1979-03-01 | Base plate and carth coupling assembly for shear-wave transducers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT6930079A PT69300A (en) | 1979-03-01 | 1979-03-01 | Base plate and carth coupling assembly for shear-wave transducers |
Publications (1)
Publication Number | Publication Date |
---|---|
PT69300A true PT69300A (en) | 1979-04-01 |
Family
ID=20082462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT6930079A PT69300A (en) | 1979-03-01 | 1979-03-01 | Base plate and carth coupling assembly for shear-wave transducers |
Country Status (1)
Country | Link |
---|---|
PT (1) | PT69300A (en) |
-
1979
- 1979-03-01 PT PT6930079A patent/PT69300A/en unknown
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