Optical Resonance Force Sensor with Transflective Layer
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Solution Overview
Problem
Existing force measurement technologies face challenges such as contact damping errors in mechanical linkage devices, interference from external factors in electronic linkage devices, and high complexity and cost in optical fiber linkage devices, limiting their accuracy and reliability.
Innovation Solution
An optical resonance device with a light emitting layer, reflecting layer, and transflective layer, including a transparent dielectric layer that deforms in response to force, is used in conjunction with optical sensors and a calculation unit to measure force by detecting changes in light characteristics, allowing for accurate and interference-resistant force measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mechanical linkage type measuring device is used, then force measurement can be achieved, but contact damping between mechanical components causes system error
Solution Approach 1:
The patent replaces the mechanical linkage type measuring device with an optical resonance device. The optical resonance device uses light resonance within a cavity formed by a light emitting layer, reflecting layer, and transflective layer to detect force changes, eliminating mechanical contact and its associated damping errors while maintaining measurement capability.
2Measurement precision
If electronic linkage type measuring device is used, then force measurement can be achieved, but external factors such as electromagnetic environment, humidity and temperature cause measurement error
Solution Approach 1:
The patent replaces the electronic linkage type measuring device with an optical resonance device. The optical resonance device uses optical fields instead of electronic fields, making it less susceptible to electromagnetic interference, humidity, and temperature variations, thereby improving measurement reliability in external environments.
3Measurement precision
If optical fiber linkage type measuring device is used, then measurement accuracy and anti-interference ability are improved, but optical design requires high accuracy and manufacturing process is complex with high cost
Solution Approach 1:
The patent merges the light emitting function and the optical resonance detection function into a single integrated device. The light emitting layer serves both as the light source and as part of the resonance cavity, eliminating the need for separate optical fibers and complex optical alignment systems, thereby simplifying the manufacturing process and reducing costs.
Solution Approach 2:
The optical resonance device performs multiple functions: the light emitting layer generates light, the cavity structure provides resonance enhancement, and the entire structure serves as the force sensing element. This multi-functionality eliminates the need for separate optical fibers, light sources, and sensors that would be required in traditional optical fiber linkage devices.
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 provides a simple, cost-effective, and accurate method for force measurement with reduced system errors and improved resistance to external interference, enabling precise force detection and modulus measurement.
Implementation Method 1
The light emitting layer includes a photoluminescence layer configured to generate light under excitation of exciting light
Implementation Method 2
The reflecting layer includes a photon crystal layer configured to reflect the light generated by the photoluminescence layer and transmit the exciting light
Implementation Method 3
The transparent dielectric layer is configured to generate deformation in response to an action of force to the optical resonance device
Implementation Method 4
An optical resonance device with a light emitting layer, reflecting layer, and transflective layer, including a transparent dielectric layer that deforms in response to force, is used in conjunction with optical sensors and a calculation unit to measure force by detecting changes in light characteristics
Data Source
AI summary
Embodiments of this disclosure provide an optical resonance device, a force measuring device and method, a modulus measuring method and a display panel. The optical resonance device includes: a light emitting layer, a reflecting layer, and a transflective layer. The light emitting layer is configured to generate light. The reflecting layer is arranged at one side of the light emitting layer and is configured to reflect the light generated by the light emitting layer. The transflective layer is arranged at the other side of the light emitting layer and is configured to transmit a portion of the light generated by the light emitting layer and reflect a portion of the light generated by the light emitting layer. The force measuring device includes: an optical resonance device, at least one optical sensor, a bearing unit and a calculation unit.