Rotating Photocell Array for UVC Chamber Uniformity Measurement
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Solution Overview
Problem
Existing ultraviolet disinfection devices lack a measuring instrument capable of simultaneously measuring ultraviolet C (UVC) light intensity at multiple points in different locations within the disinfection chamber, necessary for ensuring uniform light distribution and effective disinfection.
Innovation Solution
A light intensity measuring device with a rotatable photocell array and supporting component, which can be fixed in the disinfection chamber to measure UVC light intensity at multiple points and angles, and a method involving fixed duration integrating illumination algorithms to evaluate and calibrate light intensity uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single-point measurement method is used, then the measurement device is simple, but the light intensity uniformity cannot be accurately evaluated across the entire probe surface
Solution Approach 1:
The measurement device divides the probe surface into multiple measurement zones by arranging multiple photocells at different positions and orientations. Each photocell measures light intensity at its specific location, and the combined data provides comprehensive coverage of the entire probe surface, enabling accurate uniformity evaluation without requiring a single complex measurement system
Solution Approach 2:
The invention transitions from single-point measurement to multi-point spatial measurement by distributing photocells throughout the disinfection chamber in three-dimensional space. This dimensional expansion allows simultaneous measurement at multiple locations, providing comprehensive data for evaluating light intensity uniformity across the entire probe surface
2Measurement precision
If multiple measurement points are implemented, then the light intensity uniformity evaluation is accurate, but the measurement time increases
Solution Approach 1:
The measurement device enables simultaneous continuous measurement at multiple points through the parallel arrangement of multiple photocells. All photocells operate at the same time to capture light intensity data across different positions, eliminating the need for sequential measurements and significantly reducing the total measurement time while maintaining comprehensive coverage
Solution Approach 2:
By dividing the measurement task into parallel segments handled by individual photocells, the system achieves simultaneous multi-point measurement. Each photocell independently measures its local light intensity, and the results are aggregated to provide complete spatial distribution data, thereby reducing measurement time while maintaining 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
Enables comprehensive measurement and accurate evaluation of UVC light intensity uniformity, allowing for precise disinfection dose monitoring and automatic recalibration of disinfection systems, ensuring consistent disinfection effectiveness.
Implementation Method 1
a photocell array rotatably arranged at the base and configured to simultaneously measure an ultraviolet light intensity in the ultraviolet disinfection chamber at multiple points
Data Source
AI summary
A light intensity measuring device for an ultraviolet disinfection chamber and a related method are provided. The light intensity measuring device for the ultraviolet disinfection chamber includes a base, a photocell array rotatably arranged at the base and configured to simultaneously measure the ultraviolet light intensity in the ultraviolet disinfection chamber at multiple points, and a supporting component arranged at the chamber top of the photocell array.