Optical Sensor Thermal Isolation for Handheld Tissue Measurement
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Solution Overview
Problem
Existing optical sensor-based measuring devices for biological tissue are bulky, slow to stabilize, and prone to temperature-related noise, making them unsuitable for casual, handheld use, especially when applied to inhalation devices that generate heat.
Innovation Solution
A compact measuring device equipped with an optical sensor, a temperature sensor, and a data processor that corrects optical data based on temperature fluctuations, ensuring accurate measurements by selecting and processing data within a designated temperature range and using a model of light intensity change with respect to temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an optical sensor is used to measure biological tissue, then measurement capability is provided, but the device becomes bulky and slow to stabilize due to inadequate heat radiation mechanism
Solution Approach 1:
The patent extracts the heat radiation function from the overall device structure by introducing a dedicated heat radiation mechanism that operates independently. This allows the optical sensor to be separated from the heat generation source, enabling compact device design while maintaining measurement precision through isolated thermal management.
Solution Approach 2:
The patent introduces a heat radiation mechanism as an intermediary component between the optical sensor and the external environment. This intermediary facilitates controlled heat dissipation, allowing the optical sensor to operate at stable temperatures without requiring the entire device to be bulky, thus resolving the contradiction between measurement capability and device compactness.
2Measurement precision
If an optical sensor is used to measure biological tissue, then measurement capability is provided, but the measurement time becomes long due to stabilization time
Solution Approach 1:
The patent applies preliminary action by pre-heating or pre-cooling the optical sensor before actual measurement begins. The heat radiation mechanism is activated in advance to bring the sensor temperature close to the target biological tissue temperature, significantly reducing the stabilization time during actual measurement and thus decreasing overall measurement time while maintaining precision.
3Measurement precision
If an optical sensor is used in a smoking implement, then measurement of nicotine metabolites is enabled, but temperature-related noise increases due to heating during smokable component generation
Solution Approach 1:
The patent segments the functional components by separating the optical sensor from the heating element in the smoking implement. The heat radiation mechanism is positioned to radiate heat away from the optical sensor, creating thermal isolation zones. This segmentation allows the optical sensor to detect nicotine metabolites while being protected from temperature-related noise generated during smokable component generation.
Solution Approach 2:
The patent converts the harmful heat generated during smoking into a beneficial controlled radiation pattern. The heat radiation mechanism directs heat away from the optical sensor in a controlled manner, transforming the uncontrolled thermal noise into a structured thermal management system that protects the sensor while allowing the smoking implement to function.
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
The solution enables a compact, casually usable measuring device with improved measurement accuracy for biological tissue, capable of withstanding temperature variations and heat generated by inhalation devices, providing reliable and precise data for substances in biological tissues.
Implementation Method 1
an optical sensor that measures optical data about an object of measurement through a measurement surface in contact with the object of measurement by irradiating the object of measurement with light from a light emitter and causing a light receiver to receive reflected light that is reflected from the object of measurement
Implementation Method 2
a temperature sensor that measures the temperature of the optical sensor
Implementation Method 3
a data processor that processes the optical data on the basis of the temperature of the optical sensor and derives a measurement result pertaining to the object of measurement on the basis of the processed optical data
Data Source
AI summary
The present disclosure provides a measuring device for biological tissue by using an optical sensor, the device being compact enough to fit in a user's hand and casually usable by the user. The measuring device is provided with: an optical sensor that measures optical data about an object of measurement through a measurement surface in contact with the object of measurement by irradiating the object of measurement with light from a light emitter and causing a light receiver to receive reflected light that is reflected from the object of measurement, the object of measurement being a portion of biological tissue; a temperature sensor that measures the temperature of the optical sensor; and a data processor that processes the optical data on the basis of the temperature of the optical sensor and derives a measurement result pertaining to the object of measurement on the basis of the processed optical data.