Capacitor Life Estimation Using Telemetry and Reliability Curves
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Solution Overview
Problem
Existing methods for estimating the life of system components, such as variable vacuum capacitors in plasma processing, often underestimate or overestimate remaining life due to assumptions about standard usage patterns and environmental conditions, leading to potential failures.
Innovation Solution
A system comprising a match network with capacitors, a controller, and a life-consumed module that receives telemetry data, environmental data, and reliability curves to determine the cumulative life consumed of capacitors, providing an accurate estimate of their remaining life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If standard usage patterns and average environmental conditions are assumed for life expectancy forecasting, then the estimation process is simplified, but the accuracy of remaining life estimation deteriorates
Solution Approach 1:
The system continuously monitors actual usage patterns and environmental conditions, feeding this data back to the life consumption module which adjusts remaining life estimates in real-time. This feedback loop replaces static assumptions with dynamic, data-driven updates, resolving the contradiction between simple estimation processes and accurate results.
Solution Approach 2:
The estimation system serves itself by automatically collecting its own operational data and environmental conditions, then using this self-collected information to generate accurate life expectancy forecasts. This eliminates the need for external manual data collection while maintaining high accuracy.
2Measurement precision
If actual usage patterns and environmental conditions are monitored to forecast life expectancy, then the accuracy of remaining life estimation is improved, but the complexity of the estimation process increases
Solution Approach 1:
The controller performs multiple functions: it controls the matching network operation, collects telemetry data, monitors environmental conditions, and feeds all this information to the life consumption module. This multi-functionality consolidates what would otherwise be separate systems into one integrated unit, reducing overall complexity while maintaining accuracy.
Solution Approach 2:
The system merges the life estimation functionality with the existing controller and telemetry infrastructure. Rather than adding a separate complex estimation system, the life consumption module integrates with existing components, combining data collection and analysis functions into a unified approach that minimizes added complexity.
3Adaptability or versatility
If complex mechanical structures with moving parts are used in vacuum capacitors, then adjustable capacitance is achieved, but the reliability of the component deteriorates
Solution Approach 1:
The patent replaces mechanical moving parts with electromagnetic field-based tuning mechanisms. Instead of physical contact between moving components to adjust capacitance, the system uses electrically controlled methods that maintain vacuum integrity without mechanical wear or seal failures, thus improving reliability while preserving adjustability.
Data Source
AI summary
An electrical system comprising a match network comprising a plurality of capacitors, a controller, and a life-consumed module. The controller is configured to operate the plurality of capacitors and relay telemetry data for at least one of the plurality of capacitors to the life-consumed module. The life-consumed module is configured to receive the telemetry data from the controller, environmental data from an environmental input, and reliability data comprising a reliability curve for at least one of the plurality of capacitors from a reliability data datastore, compare the telemetry data and the environmental data to the reliability curve of at least one of the plurality of capacitors, determine the cumulative life consumed of at least one of the plurality of capacitors, and report an estimate of indicative life consumed for at least one of the plurality of capacitors.