Electrical Discharge Testing System for Tire Defect Detection
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Solution Overview
Problem
Electrical-based tire defect testers face issues with electrode wear, leading to increased spacing between electrodes, which results in longer time intervals between electrical discharges, potentially missing defects if the discharge rate is not optimized.
Innovation Solution
An electrical discharge testing system that includes a probe connected to a power source with a timer set to a threshold period, resetting with each discharge, and a sensor to detect and ensure optimal discharge rate, activating an indicator if the discharge rate falls below the threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrodes are used repeatedly for electrical discharge testing, then testing capability is maintained, but electrode wear increases causing increased spacing between electrodes
Solution Approach 1:
The patent employs a timer that monitors the time interval between electrical discharges and provides feedback when the interval exceeds a predetermined threshold, indicating electrode wear. This feedback mechanism alerts operators to replace electrodes before they cause defective readings, thus maintaining testing reliability while tracking the deterioration process.
Solution Approach 2:
The system performs preliminary monitoring of discharge intervals to detect electrode wear before it significantly impacts testing accuracy. By continuously tracking the time between discharges and comparing against a threshold, the system takes preliminary action to alert operators before electrode spacing becomes problematic.
2Reliability
If greater charge is applied to compensate for increased electrode spacing, then electrical discharge can be maintained, but time between discharges increases reducing coverage efficiency
Solution Approach 1:
The timer provides continuous feedback on the discharge rate, monitoring the time interval between successive electrical discharges. When the interval exceeds the predetermined threshold, the system alerts operators, enabling them to adjust or replace electrodes to maintain optimal productivity and coverage efficiency.
Solution Approach 2:
The system dynamically monitors the discharge characteristics and adapts by providing real-time feedback through the timer mechanism. This allows the system to respond to changing electrode conditions and maintain optimal performance parameters throughout the testing process.
3Duration of action of stationary object
If probe discharge rate is not optimized due to electrode wear, then electrode lifespan is extended, but defect detection coverage is compromised
Solution Approach 1:
The system takes preliminary action by continuously monitoring discharge intervals and comparing them against a predetermined threshold. This early detection approach allows operators to replace electrodes before wear significantly impacts defect detection accuracy, thus maintaining reliability while extending productive electrode lifespan.
Solution Approach 2:
The timer provides continuous feedback on discharge rate, enabling operators to understand the actual performance of electrodes. This feedback loop allows for optimized replacement timing that balances electrode lifespan with maintained detection accuracy.
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
Ensures consistent and efficient coverage of the tire surface by detecting faults in the discharge rate, preventing missed defects and extending the lifespan of the testing system by maintaining optimal electrode wear.
Implementation Method 1
one of the electrodes periodically discharges from a connected power supply such as by using a capacitor and a rectifier. Arcs or sparks between the two electrodes will provide an indication that there is a defect at the position in which the arc or spark occurred.
Data Source
AI summary
An electrical discharge testing system for detecting electrical discharge rate failure in an electrical-based tire defect tester. The electrical discharge testing system generally includes a probe which is connected to a power source such that the probe periodically discharges electricity for the purpose of testing a tire for defects. A sensor detects each electrical discharge of the probe. To ensure that the probe is discharging at an appropriate rate for efficient coverage of the tire, a timer is preset to a threshold period of time between electrical discharges. The timer is reset each time an electrical discharge from the probe is detected by the sensor. If the timer reaches zero before a subsequent electrical discharge after a reset, an indicator is activated to indicate a fault in the tire defect tester.