Data acquisition unit, system and method for geophysical data
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Abstract
A data acquisition system for gathering geophysical data, a corresponding method, and a data acquisition unit for use with the system and method are disclosed. The system (10) comprises a plurality of data acquisition units (14) for gathering geophysical data, each data acquisition unit (14) being connectable to at least one sensor (15) and being arranged, during use, to gather geophysical data from the at least one sensor (15). Each data acquisition unit (14) comprises time referencing means (48) arranged to generate time reference data usable to control the time at which samples of geophysical data are taken. The system (10) further comprises means for calculating spatial derivatives between samples associated with adjacent sensors (15) connected during use to the data acquisition units (14).
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Citations
125 Claims
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1-62. -62. (canceled)
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63. A data acquisition system for gathering geophysical data, said system comprising:
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at least one data acquisition unit connectable to a plurality of sensors and being arranged, during use, to simultaneously gather geophysical data from the sensors, the at least one data acquisition unit comprising time referencing means arranged to generate time reference data usable to control the time at which samples of geophysical data are taken; and
means for calculating spatial derivatives between simultaneous samples associated with adjacent sensors connected, during use, to the at least one data acquisition unit. - View Dependent Claims (64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 123)
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100. A method of acquiring geophysical data, said method including the steps of:
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providing at least one data acquisition unit arranged to simultaneously gather geophysical data from a plurality of sensors connected in use to the at least one data acquisition unit;
connecting a plurality of sensors to the at least one data acquisition unit;
generating at the data acquisition unit time reference data usable to control the time at which gathering of samples of geophysical data are taken; and
calculating spatial derivatives between simultaneous samples associated with adjacent sensors connected during use to the at least one data acquisition unit. - View Dependent Claims (101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 124)
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125. A data acquisition system for gathering geophysical data, said system comprising:
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at least one data acquisition unit connectable to a plurality of sensors and being arranged, during use, to simultaneously gather geophysical data from the sensors, the at least one data acquisition unit comprising time referencing means arranged to generate time reference data usable to control a time at which samples of geophysical data are taken; and
a processor arranged to calculate spatial derivatives between simultaneous samples associated with adjacent sensors connected during use to the at least one data acquisition unit.
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Specification