UV Sensing Assembly for High-Temperature Remote Measurement

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Solution Overview

Problem

Existing non-contact temperature measurement technologies, such as IR thermometers, are inefficient for measuring temperatures at a distance using UV radiation and face propagation issues.

Innovation Solution

A UV sensing assembly comprising a photodiode, analog-to-digital converter, micro-controller, and digital display, which uses UV radiation to estimate temperature through a UV detector that converts photons into electrical current and calculates temperature using a processing circuit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If IR thermometers are used for non-contact temperature measurement, then contactless measurement is achieved, but measurement efficiency at distance using UV radiation is poor and propagation issues occur

Engineering Contradiction:
Improvetemperature measurement accuracyVSAvoidmeasurement efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent changes the measurement parameter from infrared radiation to ultraviolet radiation for temperature measurement. The UV sensor assembly detects UV radiation emitted by high-temperature sources, converting it to electrical signals for temperature calculation. This parameter change enables efficient measurement of very high temperatures at distance without the propagation issues affecting IR thermometers.

Inventive Principle:
Principle #35Parameter changes

2Temperature

If UV radiation is used for temperature measurement, then measurement of high temperature sources is improved, but device complexity increases due to additional components

Engineering Contradiction:
Improvemeasurable temperature rangeVSAvoidsensor assembly complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent creates a multi-functional UV sensor assembly that integrates multiple components: UV sensor element for radiation detection, analog-to-digital converter for signal processing, microcontroller for temperature calculation, and display for output. This universal assembly can measure temperatures across a wide range and provides complete processing and display functions in one integrated device.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs a nested structure where the UV sensor element is integrated with the analog-to-digital converter, which is in turn integrated with the microcontroller, and finally with the display component. Each component is embedded within the next larger component, creating a compact nested arrangement that reduces overall device complexity while maintaining full functionality.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 efficient non-contact temperature measurement of high-temperature thermal sources by integrating UV signals across a wide wavelength spectrum, allowing temperature measurement in thousands of degrees.

Implementation Method 1

the detector is adapted to detect ultraviolet radiation from a high temperature thermal source and to convert photons from the high temperature thermal source, via the photodiode, into a current of electrons

Methodology Applied
Scientific EffectPhotoelectric effect: Photoelectric Effect

Data Source

PatentUS12540857B2Ultraviolet sensing assembly
Publication Date: 2026.02.03 POLYTECHNIC UNIV OF PUERTO RICO
  • US12540857B2 patent drawing
  • US12540857B2 patent drawing
  • US12540857B2 patent drawing

AI summary

A device that uses a UV sensing element capable of converting photons from a high temperature thermal source, to an electrical current. Such current is then compared with the theoretical current to be obtained from a source with the dimensions of the actual source. The theoretical current is obtained by integrating.