公开(公告)号：US3644825A

公开(公告)日：1972-02-22

申请号：US3644825D

申请日：1969-12-31

Applicant: TEXAS INSTRUMENTS INC

Inventor： DAVIS PAUL D JR ,  MCCULLOUGH THOMAS E

IPC: G01V3/08 ,  G08G1/042 ,  G01R33/00

CPC classification number: G01V3/081 ,  G08G1/042

Abstract: A pair of magnetic field sensors are disposed perpendicular to one another for sensing, at a single location, different directional components of a magnetic field. The output signals from the magnetic field sensors are vectorally combined to provide vector representations of the varying magnetic field. The direction of movement of the vector representations is then determined in order to indicate either the direction of movement of the object creating the variations in the magnetic field or the relative position of the object with respect to the sensors.

公开(公告)号：US3570437A

公开(公告)日：1971-03-16

申请号：US3570437D

申请日：1969-02-11

Applicant: TEXAS INSTRUMENTS INC

Inventor： DAVIS PAUL D JR

IPC: B63B22/20 ,  B63G9/00 ,  B63B21/52

CPC classification number: B63B22/20 ,  B63B2207/02 ,  B63B2211/02

Abstract: A system for repetitively submerging and surfacing an ocean data gathering instrument package. The system includes a number of vessels each large enough to contain sufficient water to sink the instrument package and the remaining vessels. The package is submerged by flooding one of the vessels and is surfaced by detaching the flooded vessel from the package and the remaining vessels. The package may be submerged as many times as there are vessels in the system.

公开(公告)号：US3555502A

公开(公告)日：1971-01-12

申请号：US3555502D

申请日：1969-02-12

Applicant: TEXAS INSTRUMENTS INC

Inventor： DAVIS PAUL D JR ,  NEITZEL EDWIN B

IPC: G01V1/104 ,  G01V1/147 ,  G01V1/22 ,  G01V1/12 ,  G01V1/14 ,  G01V1/16

CPC classification number: G01V1/104 ,  G01V1/147 ,  G01V1/223

Abstract: PRELIMINARY SEISMIC EXPLORATION AND EXPLORATION IN REMOTE ACCESS AREAS MAY BE CARRIED OUT WITH A LOW-COST, EXPENDABLE SEISMIC TELEMETERING UNIT CONTAINED IN A TWOPART AIR-DROPPABLE PROBE THAT INCLUDES AN UPPER SECTION (LIGHT MASS) DESIGNED TO REMAIN AT THE SURFACE AND A LOWER SECTION (HEAVE MASS) THAT IS BURIED TO A DEPTH DEPENDING UPON THE SOIL CONDITIONS. AS THE TWO-PART PROBE EMBEDS ITSELF IN AN EARTH-LIKE SURFACE, IT GENERATES UNDERGROUND SEISMIC WAVES, THEREBY ACTING AS ITS OWN SOURCE OF SEISMIC ENERGY. MANY PROBES MAY BE DROPPED IN AN EXPLORATION AREA IN ANY DESIRED SPREAD TO PRODUCE THE DESIRED SEISMIC DATA. THE IMPACT OF EACH PROBE GENERATES A NEW SET OF ENERGY WAVES THAT WILL BE PICKED UP BY ALL EARLIER DROPPED PROBES. BY APPROPRIATE CODING OF THE TRANSMITTED ENERGY,

AN AIRBORNE COMPUTER WILL SEGREGATE THE SIGNALS FROM EACH PROBE TO PRODUCE SEISMIC DATA THAT MAY BE READ IN THE USUAL MANER. SEISMIC WAVES ARE DETECTED BY A SEISMIC SENSOR IN THE LOWER SECTION (SENSOR SECTION) WHICH GENERATES ELECTRICAL SINALS PROPORTIONAL TO TE TRAVELING WAVES. THESE ELECTRICAL SIGNALS ARE AMPLIFIED BY ONE OF MANY DIFFERENT AMPLIFICATION SYSTEMS, DEPENDING OF THE APPLICATION, AND CONVERTED INTO RADIO FREQUENCY SIGNALS IN A RADIO TRANSMITTER. AN ANTENNA IS MOUNTED TO EXTEND ABOVE THE EARTH''S SURFACE AS A COMMUNICATION LINK BETEEN THE RADIO TRANSMITTER AND A RADIO RECEIVER OPERATING AT A REMOTE LOCATION.