Ground Penetrating Radar Antenna System for Dual-Field Imaging
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Solution Overview
Problem
Ground penetrating radar (GPR) techniques primarily use dipole sensors to transmit and receive electric field signals, excluding magnetic field signals, which limits the acquisition of comprehensive underground images, mainly focusing on electric field reflected waves while excluding magnetic field reflected waves.
Innovation Solution
A system comprising a transmission antenna and a pair of reception antennae for both electric and magnetic field signals, allowing the measurement and analysis of underground geophysical properties using electromagnetic pulse signals, enabling the acquisition of images from both electric and magnetic field reflected waves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only dipole sensors are used to transmit and receive electric field signals, then the system structure remains simple, but the ability to acquire comprehensive underground images is limited
Solution Approach 1:
The patent combines both electric field sensors (dipole type) and magnetic field sensors (loop type) into a single integrated sensor system. This merging allows the system to simultaneously acquire both electric field reflected waves and magnetic field reflected waves, thereby obtaining comprehensive underground images that cover both field types, directly resolving the limitation of using only dipole sensors
Solution Approach 2:
The sensor system is designed to perform multiple functions: it can detect both electric field signals and magnetic field signals using different sensor types (dipole and loop sensors). This multi-functionality enables the system to acquire diverse underground information through a single integrated system, improving versatility without requiring separate independent systems for each field type
2Measurement precision
If only electric field signals are received, then the reception system remains simple, but the accuracy of underground geophysical property exploration is limited
Solution Approach 1:
The reception system merges both electric field signal reception capabilities (using dipole sensors) and magnetic field signal reception capabilities (using loop sensors) into a unified system. This combination allows simultaneous measurement of both field types, providing more complete data for analyzing underground geophysical properties and improving measurement accuracy
Solution Approach 2:
The patent introduces signal processing units as intermediaries that separately process electric field signals and magnetic field signals before integrating them for comprehensive analysis. These intermediary processing components enable the system to handle multiple signal types efficiently, improving measurement precision while managing system complexity through structured signal processing
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 allows for more accurate and effective exploration of underground geophysical properties by incorporating magnetic field signals, enhancing the understanding of underground structures beyond what is possible with electric field signals alone.
Implementation Method 1
a transmission antenna which is provided on the ground of a specific spot to radiate an electromagnetic wave pulse signal
Implementation Method 2
a pair of reception antennae which measures electric field and magnetic field signals formed by the radiated signal
Implementation Method 3
obtain not only underground images using the electric field reflected waves of the related art but also the underground images using the magnetic field reflected waves
Data Source
AI summary
The present invention relates to an apparatus and method for analyzing underground geophysical properties using the principle of a ground-penetrating radar. In order to resolve problems of the ground-penetrating radar (GPR) techniques of the related art which mainly acquires an underground image using electric field reflected waves and excludes acquisition of an underground image using magnetic field reflected waves, the present invention provides a system for exploring underground geophysical properties and a method for analyzing underground geophysical properties using the same, the system including: a transmission antenna which is located in a specific spot on the ground and radiates an electromagnetic pulse signal; and a pair of reception antennae which measures an electric field signal and a magnetic field signal which are generated by the radiated signal, in which the system is configured to be able to acquire not only underground images using electric field reflected waves as in technology of the related art but also underground images using magnetic field reflected waves, thereby exploring underground geophysical properties more accurately and effectively than conventional technology.