| Patent Number |
Title Of Patent |
Date Issued |
| 7612886 |
Fiber-optic seismic sensor |
November 3, 2009 |
| The invention relates to a fiber-optic seismic sensor (200) with a test body (110), characterized in that the test body (110) comprises several separate dishes (113, 114, 115, 116) that are distributed around the direction of the sensitive axis of the sensor and two star-shaped eleme |
| 7610871 |
Dynamic stabilisation device for a submarine vehicle |
November 3, 2009 |
| A submarine vehicle able to control the navigation of a towed submerged object (3). The vehicle includes a body (5) equipped with stabilizing fins (7a, 7b, 7c), at least one of which (7c) is free to rotate and is ballasted, or linked to a ballast, for roll stabilization and/or orient |
| 7552638 |
Accelerometer with reduced extraneous vibrations owing to improved return movement |
June 30, 2009 |
| An accelerometer uses variations in capacitance to detect and measure the movement of a moving mass in relation to a fixed part. The accelerometer comprises a first series of electrodes, which are solidly connected to the mass and which are interdigitated with a second series of electrod |
| 7548600 |
Apparatus and method for compensating the drift of a local clock used as sampling frequency |
June 16, 2009 |
| The invention relates to an apparatus and a method for data acquisition, the apparatus being characterized in that it comprises an analog/digital converter (510) sampling at an imperfect frequency F.sub.E provided by a local clock (100) data acquired by a sensor (500) thus providing a se |
| 7502120 |
Fiber optic interferometric sensor array |
March 10, 2009 |
| The invention relates to an apparatus for multiplexing Fiber Optic Interferometric Sensors (FOISs), which apparatus comprises means (1) forming the an optical source for providing m*n distinct wavelengths .lamda..sub.11, .lamda..sub.12, . . . , .lamda..sub.1n, .lamda..sub.21, .lamda. |
| 7499378 |
Device for emitting seismic vibration waves |
March 3, 2009 |
| The invention relates to a device for emitting seismic vibration waves mountable on a movable platform (100) comprising a vibration system for transmitting the waves into the ground and a system for supporting a device (200) on the ground, wherein the system for supporting on the gro |
| 7474591 |
Six-component seismic data acquisition system |
January 6, 2009 |
| A seismic data acquisition system includes a plurality of sensors which are arranged so they can be used to measure translation movements of a medium with three independent spatial components and of the rotation movements around each of the three independent spatial components, thus |
| 6786297 |
System for acquiring geophysical data |
September 7, 2004 |
| A module is described for acquiring geophysical signals. The module includes at least one casing which is individually linked to one track. Each casing houses a processor which operates to digitize the geophysical signals. The module further includes two cable sections associated with |
| 6644232 |
Cable, in particular seismic streamer, including a plurality of chambers forming a necklace floa |
November 11, 2003 |
| A marine cable includes chambers forming a necklace float. For filling, degassing the chambers and for connecting two successive chambers, the cable includes an intervention orifice between the chambers and with which the chambers communicate. Connection of the chambers to the interventi |
