Source: https://patents.justia.com/patent/10605599
Timestamp: 2020-05-25 11:21:55
Document Index: 532517684

Matched Legal Cases: ['art 1', 'Application No. 1417797', 'Application No. 15848932', 'Application No. 2013', 'Application No. 2013245302', 'Application No. 1417797']

US Patent for Gradient sensor device Patent (Patent # 10,605,599 issued March 31, 2020) - Justia Patents Search
Justia Patents Plural Transducer ArrayUS Patent for Gradient sensor device Patent (Patent # 10,605,599)
Oct 1, 2015 - WESTERNGECO L.L.C.
dVz dx = Vz ⁡ ( 1 ) - Vz ⁡ ( 2 ) d ⁢ ⁢ 12 , dVz dy = Vz ⁡ ( 3 ) - Vz ⁡ ( 2 ) d ⁢ ⁢ 32 .
dVz dx = Vz ⁡ ( 1 ) - Vz ⁡ ( 2 ) d ⁢ ⁢ 12 , dVz dy = Vz ⁡ ( 3 ) - ( Vz ⁡ ( 2 ) + Vz ⁡ ( 1 ) ) / 2 d ⁢ ⁢ 32 ,
dVz dx ⁢ ⁢ ⁢ and ⁢ ⁢ dVz dy .
a plurality of sensor devices, wherein a given one of the sensor devices comprises: a support structure providing a surface; and at least three particle motion sensors coupled with the support structure to measure translational data in a first direction, the particle motion sensors are arranged at positions which form corners of a triangle and enable calculation of spatial gradients of the translational data in second and third directions, both of which are perpendicular to the first direction and to each other; and
a computer configured to: receive the measured translational data from the at least three particle motion sensors; and compute from the measured translational data the spatial gradients of the translational data in the second and third directions which are perpendicular to the first direction and to each other.
2. The system of claim 1, wherein the first direction is a vertical direction, and the second direction is a horizontal direction.
4. The system of claim 1, wherein the particle motion sensors are arranged at positions on the surface.
5. The system of claim 1, further comprising a communication component to communicate the measured translational data to a remote system.
6. The system of claim 5, wherein the communication component is configured to communicate wirelessly with the remote system, or to communicate over a cable with the remote system.
7. The system of claim 1, wherein the support structure includes a plate that provides the surface on which the particle motion sensors are attached.
8. The system of claim 1, further comprising elongated sensing devices, each of the elongated sensing devices including at least two particle motion sensors, where the at least two particle motion sensors within each of the elongated sensing devices are spaced apart along a longitudinal direction of the respective elongated sensing device within a housing of the elongated sensing device, and where each elongated sensing device has a length longer than a width of the elongated sensing device.
9. The system of claim 1, further comprising coupling enhancing pads configured to depend from the support structure, the coupling enhancing pads to engage with an earth surface.
10. The system of claim 1, wherein a spacing between a pair of the particle motion sensors is less than about 10% of a wavelength of a signal of interest to be measured by the particle motion sensors.
11. The system of claim 1, wherein a spacing between a pair of the particle motion sensors is less than about 1% of a wavelength of a signal of interest to be measured by the particle motion sensors.
12. The system of claim 1, wherein a spacing between a pair of the particle motion sensors is less than about 50 centimeters.
13. The system of claim 1, wherein a spacing between a pair of the particle motion sensors is between about 5 centimeters and about 30 centimeters.
14. The system of claim 1, wherein a spacing between a first pair of the particle motion sensors is less than about 10% of a wavelength of a signal of interest to be measured by the particle motion sensors, and a spacing between a second pair of the particle motion sensors is less than about 10% of the wavelength of the signal of interest.
15. The system of claim 1, wherein a spacing between a first pair of the particle motion sensors is less than about 1% of a wavelength of a signal of interest to be measured by the particle motion sensors, and a spacing between a second pair of the particle motion sensors is less than about 1% of the wavelength of the signal of interest.
arranging sensor devices at an earth surface, wherein a given one of the sensor devices comprises: a support structure providing a surface; and at least three particle motion sensors arranged on the support structure to measure translational data in a first direction, the particle motion sensors having a triangular arrangement that enables calculation of spatial gradients of the translational data in a second direction and a third direction both of which are perpendicular to the first direction and to each other;
propagating seismic waves into an earth subsurface;
measuring particle motion data of reflected seismic waves with the particle motion sensors, said particle motion data being translational data in a first direction; and
calculating from the translational data measured by the at least three particle motion sensors spatial gradients of the translational data in second and third directions both of which are perpendicular to the first direction and to each other.
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Patent Publication Number: 20170241781
International Classification: G01C 9/02 (20060101); G01V 1/38 (20060101); H04Q 9/00 (20060101); G01V 1/20 (20060101); G01V 1/18 (20060101); G01V 1/16 (20060101);