Electromagnetic Seabed Exploration System with Low-Power Electrodes
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Solution Overview
Problem
Conventional underwater electromagnetic prospecting systems for near-surface analysis are bulky and require large vessels with high electrical power due to the need for high current injection to maintain measurement accuracy in conductive marine environments, limiting their use on smaller ships.
Innovation Solution
The system reduces electrical power consumption by decreasing the voltage and overall resistance of the current injection module through larger contact surfaces for the electrodes and optimized cable and component resistance, allowing for a compact and lightweight design suitable for smaller ships.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high current injection is used to maintain measurement accuracy in conductive marine environments, then measurement precision is improved, but system power requirements and device size increase
Solution Approach 1:
The patent changes the electrical parameters of the injection module by using larger contact surfaces for electrodes and optimizing cable dimensions, which reduces the overall resistance and allows high current injection at lower voltages, thereby reducing power consumption while maintaining measurement accuracy
Solution Approach 2:
The patent extends the injection electrodes in the horizontal dimension rather than increasing vertical depth, creating a wide spacing configuration that reduces resistance and enables efficient current injection with reduced power requirements
2Measurement precision
If high current injection is used to maintain measurement accuracy, then measurement precision is improved, but system size and weight increase
Solution Approach 1:
The patent modifies the physical parameters of the injection system by increasing electrode contact surface area and optimizing cable dimensions, which reduces the need for heavy power supply equipment while maintaining the capability for high current injection required for accurate measurements
Solution Approach 2:
The patent extracts the heavy power supply equipment from the system by reducing power consumption through optimized injection parameters, allowing the system to be deployed from smaller vessels without large electrical power sources
3Device complexity
If conventional injection module design is used, then system simplicity is maintained, but electrical resistance and power consumption increase
Solution Approach 1:
The patent optimizes the electrical parameters of the injection module by calculating and implementing specific cable dimensions and electrode contact surfaces that minimize resistance, achieving low power consumption without significantly increasing system complexity
Solution Approach 2:
The patent transitions from conventional vertical electrode spacing to horizontal wide spacing configuration, which fundamentally changes the resistance characteristics and enables efficient current injection with simplified system design
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the injection of higher currents at lower voltages, reducing the system's size and power requirements while maintaining measurement accuracy, making it feasible for use on smaller vessels without large electrical power sources.
Implementation Method 1
the marine environment being very conductive, the potentials measured by the system are very low
Implementation Method 2
the electric potentials or magnetic fields resulting from the electrical or electromagnetic excitation caused by the circulation of the current in this medium are measured
Data Source
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AI summary
The invention relates to an electromagnetic system for exploring the seabed in a marine environment, comprising a current injection module comprising two electrodes (6) spaced apart from one another, said injection electrodes being capable of injecting a current at a predetermined voltage into the marine environment close to the seabed, said injection electrodes having a contact surface with the marine environment, a data acquisition module comprising at least two measuring sensors for measuring electrical or magnetic data at at least two points of the marine environment close to the seabed, and a power supply module for supplying power to the current injection module. According to the invention, each electrode comprises one or more separate conductive elements that are electrically connected to each other and arranged in such a way as to form a conductive network or a multilayer conductive assembly having a large contact surface with the marine environment.