Fiber Bragg Grating Sensor System for Real-Time Multi-Sensor Data Processing
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Solution Overview
Problem
Existing measurement systems using fiber Bragg grating sensors require separate optical meters for high-speed and low-speed sensors, leading to increased costs and reduced efficiency when multiple sensors are operated at the same site.
Innovation Solution
A measurement system that uses a single optical meter to simultaneously process data from both dynamic and static sensors in real time through time-division measurement, reducing the number of measurement instruments and optical cables by separating channels and wavelengths, and using an optical coupler to combine data from dynamic and static sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate optical meters are used for high-speed and low-speed sensors, then measurement precision and reliability are maintained, but device complexity and cost increase
Solution Approach 1:
The patent combines multiple optical meters (high-speed and low-speed) into a single integrated optical meter that can handle both high-speed dynamic sensors and low-speed static sensors. This merging reduces the total number of devices from multiple separate meters to one unified instrument, thereby reducing system complexity and cost while maintaining measurement reliability through dedicated processing channels.
Solution Approach 2:
The optical meter is designed with multi-functionality to perform both high-speed measurements for dynamic sensors and low-speed measurements for static sensors. By incorporating multiple measurement channels and wavelength division capabilities, a single device achieves the functionality previously requiring separate specialized instruments, thus reducing device complexity without compromising measurement precision.
2Measurement precision
If separate optical meters are used for high-speed and low-speed sensors, then measurement precision is maintained, but manufacturing cost increases
Solution Approach 1:
The patent merges multiple optical meters into one integrated device, reducing the total number of instruments from two or more separate meters to a single multi-functional optical meter. This consolidation directly reduces manufacturing costs by eliminating the need to purchase, install, and maintain multiple separate devices, while the internal channel separation preserves measurement precision.
Solution Approach 2:
The optical meter achieves multi-functionality by incorporating both high-speed and low-speed measurement channels within a single device. This universal design allows one instrument to replace multiple specialized meters, thereby reducing manufacturing costs while maintaining the precision required for different sensor types through dedicated processing paths.
3Reliability
If separate optical meters are used for high-speed and low-speed sensors, then measurement reliability is maintained, but operational efficiency decreases
Solution Approach 1:
The patent merges high-speed and low-speed measurement functions into a single optical meter, allowing simultaneous processing of data from both dynamic and static sensors. This eliminates the need to operate multiple separate instruments, thereby improving operational efficiency and productivity while maintaining measurement reliability through dedicated channels for each sensor type.
4Adaptability or versatility
If multiple optical meters are deployed, then data from all sensors can be processed, but the number of optical cables and instruments increases
Solution Approach 1:
The optical meter is designed with universal compatibility to handle both high-speed dynamic sensors and low-speed static sensors through multiple channels and wavelength division. This multi-functional design allows a single instrument to replace multiple specialized meters, reducing the number of instruments and optical cables while maintaining adaptability to various sensor types.
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 simultaneous processing of multiple sensor data, reducing the number of measurement instruments and optical cables, thereby lowering manufacturing costs and improving operational efficiency.
Implementation Method 1
the fiber Bragg grating sensor is used as a detection sensor for detecting a physical quantity such as strain, angle, acceleration, displacement, temperature, and pressure change by using the principle of total reflection, in which all light within a certain angle is reflected at the interface when light travels from a material with a high refractive index to a material with a low refractive index in the optical fiber
Implementation Method 2
measures the strain of the optical file by measuring the change of the light refraction
Implementation Method 3
The fiber Bragg grating sensor refers to a sensor that uses the characteristic that the wavelength of light reflected from each grating varies according to changes in external conditions such as temperature or intensity after several fiber Bragg gratings are engraved on a single fiber along a predetermined length
Data Source
AI summary
Disclosed is a measurement system using a fiber Bragg grating sensor, which includes a sensing unit including a plurality of dynamic sensors and static sensors using fiber Bragg gratings to detect mutually different physical quantities to be measured, an optical meter configured to measure each physical quantity by simultaneously processing data output from the plurality of dynamic sensors and static sensors in real time, and a server configured to store and manage the data measured by the optical meter. Mutually different physical quantities are measured by simultaneously processing the data output from the plurality of dynamic sensors and static sensors in real time by using one optical meter.