Geophone
First Claim
Patent Images
1. An apparatus for sensing motion of a referenced surface, comprising:
- a shell, a case within the shell, and a suspension;
wherein the mass of the case is at least two times greater than the mass of the shell, and wherein the case is coupled to the shell with the suspension; and
a first electrode coupled to the shell, wherein the first electrode is configured to detect relative motion between the first electrode and the case.
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Accused Products
Abstract
An improved system for sensing ground motion is provided. The system generally comprises a shell and a case within the shell and connected by a suspension. The mass of the case is greater than the mass of the shell. An electrode within the shell detects relative motion between the shell and the case.
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Citations
47 Claims
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1. An apparatus for sensing motion of a referenced surface, comprising:
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a shell, a case within the shell, and a suspension; wherein the mass of the case is at least two times greater than the mass of the shell, and wherein the case is coupled to the shell with the suspension; and a first electrode coupled to the shell, wherein the first electrode is configured to detect relative motion between the first electrode and the case. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An apparatus for sensing motion of a reference surface, comprising:
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a shell, a case within the shell, and a suspension;
wherein the mass of the case is at least two times greater than the mass of the shell, and wherein the case is coupled to the shell through the suspension;a first electrode coupled to the shell; and a second electrode coupled to the case; wherein the first and second electrodes are configured to move relative to each other, thereby producing a signal representing the relative motion between the first and second electrodes. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method for deploying a sensor apparatus, comprising:
disposing the sensor apparatus onto a reference surface whereby the sensor apparatus self-couples to the reference surface;
wherein the sensor apparatus comprises,a shell, a case within the shell, and a suspension;
wherein the mass of the case is at least two times greater than the mass of the shell, and wherein the case is coupled to the shell through the suspension;and an electrode is coupled to the shell, wherein the electrode is configured to detect relative motion between the electrode and the case.
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46. A method for deploying a sensor apparatus, comprising:
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disposing the sensor apparatus onto a reference surface, whereby at least a portion of the sensor apparatus penetrates the reference surface thereby self-coupling to the reference surface; and
wherein the sensor apparatus comprises,a shell, a case within the shell, and a suspension;
wherein the mass of the case is at least two times greater than the mass of the shell, and wherein the case is coupled to the shell though the suspension;a first electrode coupled to the shell; and a second electrode coupled to the case; wherein the first and second electrodes are able to move relative to each other, thereby producing a signal representing the relative motion between the first and second electrodes. - View Dependent Claims (47)
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Specification