Line compensated seismic amplifier
Creators
Description
A seismic amplifier for use in marine seismic survey work involving the transmission of signals from remote signalling stations over cable pairs to signal processing equipment. These signalling stations are comprised of capacitive transducers. The seismic amplifier of the surveying system includes operational amplifiers electrically interconnected with a feedback circuit comprised of a balanced resistive-reactive network which is a lumped parameter equivalent circuit of the transmission line and capacitive transducer. The lumped parameter equivalent circuit used for feedback provides a flat, zero-phase shift overall response over the cable pair from the transducer to the output of a differential amplifier stage which is connected to the operational amplifier outputs to improve common mode rejection
Availability note (English)
U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.Additional details
Additional titles
- Augmented title (English)
- Patent
Publishing Information
- Imprint Pagination
- v p.
- IPC:
- Int. Cl.G01V 1/28.
- IPC
- Int. Cl.G01V 1/28.
- Patent number
- US patent document 4,241,428/A/
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12616367
- Subject category
- S42: ENGINEERING;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- AMPLIFIERS; DATA TRANSMISSION; ELECTRONIC CIRCUITS; GEOPHYSICAL SURVEYS; SEA BED; SEISMIC SURVEYS; SIGNALS; TRANSDUCERS
- Descriptors DEC
- COMMUNICATIONS; GEOLOGIC SURVEYS