Acceleration Sensor Visual Evaluation via Silver Nanowire Orientation
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Solution Overview
Problem
Existing acceleration sensors require electric power consumption for analyzing acceleration information, making it difficult to visually evaluate acceleration without electrical means.
Innovation Solution
An acceleration sensor comprising two polarizing plates in a crossed Nicol disposition, a sensitive color plate, and a silver nanowire dispersion, where the silver nanowire dispersion is between the polarizing plates, allowing for visual evaluation of acceleration using white light and observing color changes without electric power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electronic analysis methods (electrostatic capacitance method or piezo resistance method) are used to obtain acceleration information, then acceleration measurement capability is achieved, but electric power consumption is required
Solution Approach 1:
The patent replaces electronic analysis systems with an optical system consisting of polarizing plates and a sensitive color plate. The acceleration direction is determined by observing color changes in transmitted light rather than through electronic signal processing, thereby eliminating the need for electric power consumption while maintaining measurement capability
Solution Approach 2:
The patent utilizes color changes in the sensitive color plate as a visual indicator of acceleration direction. The sensitive color plate exhibits different colors depending on the orientation of silver nanowires, which align according to acceleration direction, allowing direct visual evaluation without electronic analysis
2Loss of information
If electronic analysis of acceleration information is performed, then quantitative acceleration data is obtained, but visual evaluation without electrical means becomes difficult
Solution Approach 1:
The patent converts acceleration direction information into visible color changes. The sensitive color plate displays different colors (e.g., yellowish-green for fast axis direction, red for slow axis direction) that directly indicate acceleration orientation, enabling immediate visual evaluation without requiring electronic analysis equipment
Solution Approach 2:
The patent introduces light as an intermediary to transfer acceleration information from the sensor to the human observer. White light passes through the polarizing plates and sensitive color plate, and the resulting color provides direct visual information about acceleration direction, bridging the gap between physical measurement and human perception
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 visual evaluation of acceleration without electric power, with the silver nanowire dispersion orienting along the acceleration direction, allowing for accurate determination of acceleration direction and state without electrical analysis.
Implementation Method 1
a sensitive color plate and a silver nanowire dispersion, in which the sensitive color plate and the silver nanowire dispersion are disposed between the two polarizing plates
Implementation Method 2
two polarizing plates disposed in a crossed Nicol disposition
Data Source
AI summary
An acceleration sensor is provided in which a sensitive color plate is provided between two polarizing plates that are in a crossed Nicol disposition, and a silver nanowire dispersion is disposed between the sensitive color plate and one of the polarizing plates.