MEASUREMENT METHOD FOR A COMPONENT OF THE GRAVITY VECTOR
First Claim
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1. A method for using a sensor to acquire information, comprising:
- moving the sensor to at least two different orientations,wherein the sensor has an initial orientation; and
calibrating the sensor with a linear model using information acquired from the initial orientation and the at least two different orientations, wherein the information includes a response by the sensor to earth gravity and an external force.
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Abstract
The present disclosure relates to methods and apparatuses for calibrating a sensor, particularly a gravimeter, which involves positioning the sensor in at least three different orientations and calibrating the sensor using a linear model and the sensor outputs from the at least three different orientations. The method may include applying an external force to the sensor. The apparatus includes a processor and storage subsystem with a program that, when executed, implements the method.
25 Citations
17 Claims
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1. A method for using a sensor to acquire information, comprising:
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moving the sensor to at least two different orientations, wherein the sensor has an initial orientation; and calibrating the sensor with a linear model using information acquired from the initial orientation and the at least two different orientations, wherein the information includes a response by the sensor to earth gravity and an external force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for acquiring information using a sensor, comprising:
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a processor; a non-transitory computer-readable medium; and a program stored by the non-transitory computer-readable medium comprising instructions that, when executed, cause the processor to; move the sensor to at least two different orientations, estimate a gain factor based on information acquired from an initial orientation of the sensor and the at least two different orientations, wherein the information includes a response by the sensor to earth gravity and an external force, and estimate an offset based on information acquired from an initial orientation of the sensor and the at least two different orientations. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification