Antioxidant Sensor Pressure-Adaptive Light Emission
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Solution Overview
Problem
There is a need for a non-invasive method to accurately measure antioxidant levels in the body, as excessive reactive oxygen species can lead to various tissue diseases and antioxidant levels are crucial for protecting against oxygen toxicity, but existing methods are not efficient for easy identification.
Innovation Solution
An antioxidant sensor system that includes a pressure sensor and an optical sensor, which emits light of specific wavelengths to determine contact pressure and measure antioxidant values based on reflected light, guiding users to adjust pressure and providing feedback for accurate measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If contact pressure between object and optical sensor is increased to improve measurement accuracy, then signal-to-noise ratio improves, but user comfort and ease of operation deteriorates
Solution Approach 1:
The system dynamically adjusts the optical sensor's light emission characteristics (quantity of light and flickering speed) based on the detected contact pressure level. When pressure is insufficient, the system modifies light parameters to enhance signal detection capability, allowing accurate measurement without requiring excessive contact pressure from the user.
Solution Approach 2:
The system changes operational parameters (light quantity and flickering speed) in response to contact pressure conditions. By adjusting these parameters, the system optimizes the signal-to-noise ratio for antioxidant measurement while maintaining comfortable contact pressure levels for the user.
2Reliability
If threshold pressure is set high to ensure accurate antioxidant measurement, then measurement reliability improves, but device complexity increases due to multiple pressure levels and adjustment mechanisms
Solution Approach 1:
The system automatically detects contact pressure level and self-adjusts light emission parameters without requiring manual intervention or complex external control mechanisms. This self-service approach maintains measurement reliability while minimizing device complexity.
Solution Approach 2:
The system implements a feedback loop where the detected contact pressure level informs adjustments to light emission parameters. This feedback mechanism ensures reliable measurements by adapting to actual contact conditions while keeping the control system simple and integrated.
3Ease of operation
If contact pressure is insufficient for accurate measurement, then ease of operation improves, but measurement precision and signal-to-noise ratio deteriorate
Solution Approach 1:
The system dynamically modifies light emission characteristics based on detected contact pressure. When pressure is low, the system increases light quantity and adjusts flickering speed to enhance signal detection, enabling accurate measurement even with minimal user-applied pressure.
Solution Approach 2:
The system changes light emission parameters (quantity and flickering speed) in response to contact pressure levels. This parameter adaptation allows the system to maintain high measurement precision while requiring minimal contact pressure from the user.
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 non-invasive, efficient measurement of antioxidant levels, improving signal-to-noise ratio and providing actionable feedback for users to increase contact pressure, thus aiding in determining antioxidant values effectively.
Implementation Method 1
the optical sensor configured to, based on the obtained contact pressure exceeding a set threshold pressure, emit a first light of a first wavelength to the object, and receive the first light reflected or scattered from the object
Implementation Method 2
receive the first light reflected or scattered from the object
Data Source
AI summary
An antioxidant sensor includes a pressure sensor configured to obtain a contact pressure between an object and an optical sensor; the optical sensor configured to, based on the obtained contact pressure exceeding a set threshold pressure, emit a first light of a first wavelength to the object, and receive the first light reflected or scattered from the object; and a processor configured to determine a contact portion of the object in contact with the optical sensor, set a threshold pressure, among different threshold pressures, according to the determined contact portion, and determine an antioxidant value based on the received first light.