Communications – electrical: acoustic wave systems and devices – Testing – monitoring – or calibrating
Patent
1997-10-31
1999-03-16
Barlow, John
Communications, electrical: acoustic wave systems and devices
Testing, monitoring, or calibrating
367 12, 367 14, 367 15, H04B 1700, G01V 100, G01V 138
Patent
active
058838562
ABSTRACT:
An improved bottom cable for a seismic marine data acquisition system 10. The bottom cable 30 includes a cable section 30b having a bus 48. The cable, along with the cable section and bus, are used to electrically connect a master control unit 40 to first and second modules 32b and 32c, respectively. The bus 48 includes first and second switches 48b and 48c, respectively, located near opposite ends of the bus. In this way, if a leak R1 occurs in the bus, the first and second switches can be opened, thereby electrically isolating the bus and stopping the leak.
REFERENCES:
patent: 4052694 (1977-10-01), Fredriksson
patent: 4160228 (1979-07-01), Hix et al.
patent: 4166270 (1979-08-01), Brastins et al.
patent: 4233677 (1980-11-01), Brown et al.
Barr et al."A Dual-Sensor, Bottom-Cable 3-D Survey in the Gulf of Mexico", Society of Exloration Geophysicists. Sep. 1990.
Carroll Paul Ellington
James III Roy Wilson
Schuler Karl Joseph
Barlow John
Headley Tim
Input / Output Inc.
Spivey Jonathan R.
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