Seismic sensor
First Claim
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1. A seismic survey apparatus comprising:
- a body;
a proof mass;
at least one sensor arranged to detect movement of the proof mass relative to the body, wherein the sensor comprises one or more piezoelectric elements arranged to detect the movement of the proof mass;
electronic circuitry connected to the at least one sensor, the electronic circuitry being configured to receive and process an output of the sensor; and
a power supply configured to provide electrical power to the electronic circuitry, wherein the power supply is an integral part of the proof mass, and wherein at least 75% of the proof mass by weight or by volume is provided by the power supply.
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Abstract
A seismic survey apparatus includes a body, a proof mass, at least one sensor arranged to detect movement of the proof mass relative to the body. In addition, the seismic survey apparatus includes electronic circuitry connected to the at least one sensor. The electronic circuitry is configured to receive and process an output of the sensor. A power supply is arranged to provide electrical power to the electronic circuitry with the power supply being an integral part of the proof mass.
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Citations
38 Claims
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1. A seismic survey apparatus comprising:
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a body; a proof mass; at least one sensor arranged to detect movement of the proof mass relative to the body, wherein the sensor comprises one or more piezoelectric elements arranged to detect the movement of the proof mass; electronic circuitry connected to the at least one sensor, the electronic circuitry being configured to receive and process an output of the sensor; and a power supply configured to provide electrical power to the electronic circuitry, wherein the power supply is an integral part of the proof mass, and wherein at least 75% of the proof mass by weight or by volume is provided by the power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A seismic survey apparatus comprising:
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a body; a proof mass; at least one sensor arranged to detect movement of the proof mass relative to the body, wherein the sensor comprises one or more piezoelectric elements arranged to detect the movement of the proof mass; electronic circuitry connected to the at least one sensor, the electronic circuitry being configured to receive and process an output of the sensor; and a power supply configured to provide electrical power to the electronic circuitry, wherein the power supply is an integral part of the proof mass; wherein the body is provided with a protrusion to engage the proof mass so as to limit movement of the proof mass. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification