Partial Break Location in Wire Loop Antennas
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Solution Overview
Problem
Conventional systems for locating breaks in wire loop antennas are ineffective in detecting and locating partial breaks or damage less than a complete break, as they rely on frequency differences that result in gradual signal attenuation, making it difficult to determine the exact location of damage.
Innovation Solution
A system that generates two test signals with distinguishable signal patterns, transmitted through the antenna, allowing a receiver device to detect a subtle shift in signal indicators to locate partial breaks by analyzing the signal strength and pattern changes as it traverses the damaged section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional break location systems use frequency differences to transmit test signals through antenna sections, then the system can locate complete breaks, but the system becomes ineffective for detecting partial breaks due to gradual signal attenuation
Solution Approach 1:
The patent changes the distinguishing parameter from transmission frequency to signal pattern (modulation type). By using different modulation patterns (e.g., AM vs. FM, or different pulse codes) instead of different frequencies, the system creates distinct signal identities that remain recognizable even when both signals are present simultaneously, enabling precise localization of partial breaks where both signals coexist.
2Strength
If the antenna is buried underground to protect it and maintain position, then the antenna is protected from damage and hidden, but the location of damaged sections becomes inconspicuous and difficult to locate
Solution Approach 1:
The patent applies an analogous principle in the signal domain: it changes the 'signal color' or characteristics (modulation pattern) radiating from different antenna sections. Just as color changes make visual detection easier, the distinct modulation patterns make the transition point detectable through signal analysis, solving the detection difficulty caused by the buried antenna.
3Ease of operation
If conventional systems transmit continuous wave signals at different frequencies, then the signals can be distinguished by pitch, but the transition zone between sections becomes extensive making precise location determination difficult
Solution Approach 1:
The patent employs periodic modulation patterns with distinct characteristics (different frequencies, duty cycles, or code sequences) to create easily distinguishable signal identities. This periodic action with varying parameters allows the receiver to clearly identify which section's signal is dominant at any given location, precisely pinpointing the transition point even when both signals are present.
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
Enables precise location of partial breaks in wire loop antennas by simplifying the analysis of signal indicators, overcoming the limitations of prior art systems that struggle with incomplete breaks.
Implementation Method 1
the signal pattern of the first test signal is distinguishable from that of the second test signal... the most prominent test signal radiating from the first section of the antenna is the first test signal, and the most prominent test signal radiating from the second section of the antenna is the second test signal
Data Source
AI summary
Described is a system for locating a partial break in a wire loop antenna. More specifically, the system generates two test signals, each test signal having a signal pattern distinguishable from the other. The system transmits the test signals by way of the antenna such that each test signal radiates from the antenna. The system receives the radiating test signals and generates a signal indicator for each test signal, each signal indicator reflecting properties of its respective test signal. Each signal indicator is analyzed with respect to the other to determine the location of the partial break. Because the test signals have distinguishable signal patterns, the analysis of the signal indicators is simplified and, in certain circumstances, made possible.