Wire Pressure Sensing Tape for Continuous Load Accumulation Detection
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Solution Overview
Problem
Existing methods for detecting damage in electric wires, such as those using pulse electrical signals, fail to monitor the accumulation of pressure over time, which can lead to damage from repeated small loads, potentially causing conductor breakage.
Innovation Solution
A pressure detection system comprising a tape-shaped sensor unit with conductive coating layers on an elastic dielectric substrate, measuring characteristic impedance changes to continuously monitor pressure applied to electric wires, and recording this data to track load accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pulse electrical signal reflection characteristics are measured to detect wire damage, then damage detection capability is improved, but continuous monitoring of pressure accumulation is not achieved
Solution Approach 1:
The patent replaces the electrical signal-based detection method with a mechanical sensing approach. A pressure-sensitive sheet with conductive patterns is applied to the wire surface, converting mechanical pressure into electrical impedance changes that can be continuously monitored. This substitution enables continuous pressure accumulation monitoring while maintaining damage detection capability.
Solution Approach 2:
The patent changes the detection parameter from pulse signal reflection characteristics to impedance changes of conductive patterns under pressure. By measuring impedance variations caused by pressure-induced deformation of the conductive patterns on the pressure-sensitive sheet, the system achieves continuous monitoring of pressure accumulation on the wire.
2Reliability
If pressure-sensitive sheet with conductive patterns is applied to monitor pressure accumulation, then continuous pressure monitoring is achieved, but device complexity increases
Solution Approach 1:
The patent uses a pressure-sensitive sheet in the form of a flexible thin film with conductive patterns printed or deposited on it. This thin-film structure is easy to apply to the wire surface, requires minimal additional components, and maintains simplicity while enabling continuous pressure monitoring capability.
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 early detection of pressure-induced damage by continuously monitoring pressure changes on electric wires, preventing conductor breakage due to accumulated loads and facilitating timely maintenance.
Implementation Method 1
a tape-shaped substrate made of an elastic dielectric material
Implementation Method 2
measure characteristic impedance between the two coating layers constituting the sensor unit
Data Source
AI summary
A pressure detection system for electric wire that can continuously monitor application of pressure to an electric wire. A pressure detection system for an electric wire includes: a sensor unit including a tape-shaped substrate made of an elastic dielectric material, and conductive coating layers provided on both surfaces of the substrate; a detection unit configured to measure characteristic impedance between the two coating layers constituting the sensor unit; and a recording unit configured to record a history of a change in the characteristic impedance measured by the detection unit, wherein the sensor unit is disposed on an outer periphery of an electric wire in such a manner that one of the coating layers extends along a surface of the electric wire.