Magnetron Memory Integration for UV Lamp Life Prediction

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Solution Overview

Problem

Ultraviolet lamp systems lack a reliable method to track and maintain historical operational data for magnetrons, which hinders prediction of magnetron end-of-life, warranty verification, and optimal operating parameter adjustments.

Innovation Solution

Incorporating a non-volatile memory attached to the magnetron within the UV lamp system to track and store operational data, such as hours of operation, power cycles, and standby time, using main and intermediate control circuitry to communicate and manage this data, allowing for prediction of magnetron end-of-life and adjustment of operating parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If no memory is attached to the magnetron, then the device complexity is low, but the reliability of tracking operational data is insufficient

Engineering Contradiction:
Improvetracking operational dataVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The magnetron is equipped with its own attached memory device that autonomously stores operational data without requiring external intervention. The memory is physically integrated with the magnetron, allowing it to self-record critical operational parameters such as hours of operation, power cycles, and error codes independently of the main control circuitry.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The data storage function is segmented from the main control system and assigned to a dedicated memory device attached to the magnetron. This segmentation ensures that operational data is captured at the source (magnetron level) rather than relying on centralized control, improving data reliability while keeping the added complexity localized to a single component.

Inventive Principle:
Principle #1Segmentation

2Loss of information

If operational data is not tracked, then the loss of information is minimal, but the ability to predict end-of-life and optimize performance is reduced

Engineering Contradiction:
Improveloss of informationVSAvoidprediction capability
Core Design Contradiction:
Loss of informationVSProductivity

Solution Approach 1:

The memory device continuously records operational data during normal magnetron operation, capturing hours of operation, power cycle counts, and operational conditions before failure occurs. This preliminary data collection enables subsequent analysis to predict end-of-life and optimize performance without requiring additional measurement equipment.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The tracked operational data provides feedback about magnetron usage patterns and conditions. This feedback enables the system to predict remaining useful life, verify warranty claims, and adjust operating parameters to extend magnetron life, thereby improving overall system productivity through data-driven decision making.

Inventive Principle:
Principle #23Feedback

3Reliability

If a memory is physically attached to the magnetron, then the reliability of data storage is improved, but the ease of manufacture is reduced

Engineering Contradiction:
Improvedata storageVSAvoidease of manufacture
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The memory device is physically attached to and integrated with the magnetron assembly, combining the data storage function with the existing magnetron mounting structure. This merging approach ensures that the memory travels with the magnetron through service life and failure, providing reliable data storage without requiring separate installation of memory components in the main control system.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

An intermediate control circuit is introduced as a mediator between the main control circuitry and the memory device. This intermediary handles the complexity of data communication and protocol management, allowing the memory to be reliably integrated while keeping the main control system design relatively simple and manageable during manufacturing.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 accurate prediction of magnetron end-of-life, supports warranty claims, and optimizes magnetron performance by adjusting operating parameters, ensuring consistent UV output and extending magnetron life.

Implementation Method 1

Ultraviolet lamp systems operate by exciting an electrodeless plasma lamp with microwave energy

Methodology Applied
Scientific EffectMicrowave radiation: Microwave Radiation

Implementation Method 2

The plasma emits a characteristic spectrum of electromagnetic radiation strongly weighted with spectral lines or photons having ultraviolet and infrared wavelengths

Methodology Applied
Scientific EffectPlasma emission: Plasma

Data Source

PatentUS7952289B2UV lamp system and associated method with improved magnetron control
Publication Date: 2011.05.31 NORDSON CORP
  • US7952289B2 patent drawing
  • US7952289B2 patent drawing
  • US7952289B2 patent drawing

AI summary

An ultraviolet lamp system for irradiating a substrate includes a magnetron and a memory physically attached to the magnetron. An electrodeless lamp is configured to emit ultraviolet light when excited by microwave energy generated from the magnetron. Main control circuitry is operable to read and write operational data associated with the magnetron to the memory. The ultraviolet lamp system is operated by generating microwave energy from the magnetron. A plasma within an electrodeless lamp is excited with the microwave energy to emit ultraviolet light. Operational data associated with the magnetron is tracked and written to the memory associated with the magnetron.