Thermal Probe Composition Detection for Liquid Contamination
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Solution Overview
Problem
Current methods for detecting contamination in liquids and non-liquid samples are either time-consuming, destructive, or temperature-dependent, making real-time monitoring challenging, especially in industrial settings like engines and food manufacturing facilities.
Innovation Solution
An apparatus and method utilizing a probe element with a measurement system to analyze the rate of heat transfer through a sample, allowing for sensitive detection of composition and contamination by measuring heat transfer characteristics, which are less affected by temperature variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If off-line laboratory analysis is used, then sophisticated analysis can be performed, but there is an inevitable delay in obtaining results
Solution Approach 1:
The patent replaces complex mechanical laboratory analysis systems with a thermal property-based detection system. By measuring thermal conductivity, specific heat capacity, and heat transfer characteristics, the system achieves sophisticated composition analysis without requiring physical sample destruction or complex laboratory equipment, enabling real-time monitoring while maintaining analytical depth.
Solution Approach 2:
The patent changes the detection parameter from traditional physical/chemical analysis methods to thermal properties. By measuring how a sample conducts heat, stores thermal energy, and transfers heat under controlled conditions, the system extracts compositional information that would traditionally require time-consuming laboratory procedures, achieving both speed and sophistication.
2Loss of time
If in-line monitoring systems are implemented, then real time monitoring is achieved, but the flow rate can be affected by the sampling process
Solution Approach 1:
The patent extracts the sampling function from the main fluid flow path. By using thermal probes that can detect composition changes without requiring physical extraction of the sample, the system achieves real-time monitoring while leaving the fluid flow uninterrupted. The thermal measurement technique allows detection of composition changes in the bulk fluid without creating flow disturbances.
Solution Approach 2:
The patent introduces thermal energy transfer as an intermediary mechanism between the fluid sample and the detection system. Instead of directly sampling the fluid (which would affect flow), the system uses thermal probes to sense heat transfer characteristics of the fluid, providing real-time composition information without mechanical interference with the flow rate.
3Measurement precision
If dielectric constant sensors are used, then water contamination can be detected, but they are temperature dependant
Solution Approach 1:
The patent changes the detection parameter from dielectric constant to thermal properties (thermal conductivity, specific heat capacity, heat transfer rate). By measuring how a material conducts and stores thermal energy, the system achieves contamination detection that is inherently less sensitive to temperature variations, as thermal properties can be compensated for or normalized across different temperature conditions.
Solution Approach 2:
The patent substitutes the electrical field-based dielectric constant measurement with a thermal field-based heat transfer measurement. This substitution provides contamination detection capability that is more robust to temperature changes, as thermal conduction and heat transfer characteristics offer better temperature compensation options than electrical properties.
4Measurement precision
If X-ray equipment is used to analyse internal structure, then detailed internal structure can be obtained, but the equipment can be expensive and bulky
Solution Approach 1:
The patent replaces bulky X-ray equipment with a thermal probe system. By measuring heat transfer characteristics through a simple thermal contact, the system achieves detailed internal structure and composition detection without requiring expensive X-ray generators, detectors, or complex imaging systems. The thermal measurement approach provides sufficient resolution for contamination and composition analysis using compact, inexpensive sensors.
Solution Approach 2:
The patent uses simple, inexpensive thermal probes instead of expensive, complex X-ray equipment. The thermal measurement system employs basic thermal conduction principles that can be implemented with affordable sensors and electronics, eliminating the need for costly X-ray hardware while maintaining adequate detection capability for contamination and compositional analysis.
5Measurement precision
If objects are broken up for chemical analysis, then chemical composition can be determined, but the object may be damaged
Solution Approach 1:
The patent replaces mechanical sample destruction with thermal property measurement. By analyzing heat transfer characteristics, thermal conductivity, and specific heat capacity, the system determines chemical composition without physically breaking or damaging the sample. The non-contact or minimal-contact thermal measurement allows composition analysis while preserving object integrity.
Solution Approach 2:
The patent uses thermal energy transfer as an intermediary to access compositional information. Instead of directly physically analyzing or destroying the sample, the system measures thermal response characteristics that encode compositional data, allowing composition determination without mechanical damage to the object.
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 real-time, accurate detection of contamination and composition in various phases of matter, including liquids, solids, and gases, with improved reliability and cost-effectiveness compared to existing techniques.
Implementation Method 1
a measurement system configured to measure a rate of heat transfer through the first surface
Data Source
AI summary
The invention relates to detecting a composition of a sample or contamination in liquids by detecting corresponding changes in their thermal properties. In a disclosed arrangement, an apparatus is provided comprising a first probe element configured to provide a first surface in direct contact with the sample and a second surface that is not in direct contact with the sample. A measurement system measures a rate of heat transfer through the first surface. A processing unit analyses the measured rate of heat transfer in order to detect a heat transfer characteristic of the sample that is indicative of a composition of the sample.