Piezoelectric seismic vibration device and method
Patent
·
OSTI ID:5145409
This patent describes a vibrator for transmitting seismic signals into the earth. It comprises: at least one piezoelectric transducer capable of vibrating from 20 to 500 Hz, means for supplying an electrical signal to the transducer to cause the transducer to vibrate between 20 to 500 Hz, a contact plate attached to the transducer, and means for holding the transducer and contact plate firmly against the earth, the means for holding including a heavy mass.
- Assignee:
- Standard Oil Co., Cleveland, OH (USA)
- Patent Number(s):
- US 5005665; A
- Application Number:
- PPN: US 7-384391
- OSTI ID:
- 5145409
- Country of Publication:
- United States
- Language:
- English
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