Reflectometry Adapter for Hardened Multipoint Connector Fault Detection
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Solution Overview
Problem
Existing reflectometry systems face challenges in achieving precise fault detection on hardened multipoint connectors in harsh environments due to difficulties in correctly positioning the measurement probe, leading to issues with signal quality and measurement reproducibility.
Innovation Solution
A reflectometry system with an interfacing and impedance adaptation component featuring a ring-shaped mass collection member and a measurement orifice, which includes spring-loaded contacts for precise positioning and interchangeable rings to access different contacts, connected to an oscilloscope for improved measurement quality and reproducibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If a measuring probe is used to detect faults on hardened multipoint connectors, then fault detection capability is achieved, but positioning accuracy and measurement reproducibility deteriorate due to the complex design and small size of connector contacts
Solution Approach 1:
The patent introduces an intermediary device (adapter or fixture) that mediates between the measuring probe and the connector contacts. This intermediary provides precise positioning mechanisms and alignment features that enable accurate probe placement on small, complex connector contacts without requiring direct manual positioning, thereby resolving the contradiction between fault detection capability and measurement precision
Solution Approach 2:
The patent employs preliminary action by pre-positioning the measuring probe or preparing the measurement interface before actual contact with the connector. The probe is pre-aligned using guide features, alignment pins, or automated positioning systems that establish accurate positioning in advance, eliminating positioning errors during the actual measurement process
2Measurement precision
If microwave frequency reflectometry is used to achieve millimeter-level accuracy, then measurement precision is improved, but device complexity and difficulty of implementation worsen
Solution Approach 1:
The patent applies this principle by using disposable or replaceable probe tips, connectors, or interface components that are optimized for microwave frequency operation. These components can be easily replaced if damaged or worn, avoiding the need for complex repair or recalibration procedures and reducing overall system complexity while maintaining high measurement precision
Solution Approach 2:
The patent segments the measurement system into modular components, each optimized for specific functions. The microwave reflectometry equipment is divided into separate modules (signal generator, probe, connector, interface) that can be independently optimized, tested, and replaced. This modular approach reduces overall system complexity by allowing each component to be designed and maintained separately
3Ease of operation
If standard electrical controls are used to verify connector integrity, then ease of operation is maintained, but detection reliability deteriorates due to complex connector design and high contact density
Solution Approach 1:
The patent replaces standard electrical control methods with microwave frequency reflectometry, which uses electromagnetic wave reflection characteristics rather than traditional electrical continuity testing. This substitution provides more reliable detection of faults in complex connectors with high contact density, as microwave signals can penetrate and reflect from deeper within the connector structure, revealing defects that standard electrical tests might miss
Data Source
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AI summary
The invention relates to a reflectometry system for detecting faults on a hardened multipoint connector (10) of an electrical network, of the type that comprises a measuring probe (17), characterised in that it comprises an interfacing and impedance matching part (12) that is electrically suitable for mounting on the connector to be tested and comprises a body (13) provided with at least one element (14) in the form of a collector ring for the contact masses of the connector and a measuring opening for the probe of the reflectometry system.