Wind Sensor Protective Mesh for 360-Degree Flow Detection
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Solution Overview
Problem
Existing sensor devices for measuring wind speed lack protection for sensor elements and do not provide omni-directionality, leading to reduced sensing accuracy due to external influences and directional limitations.
Innovation Solution
A sensor device with a protective cover featuring obliquely extending support pillars surrounds the sensor elements, providing protection and enhancing omni-directionality to 360 degrees by allowing wind to act on the sensors from any direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective cover is placed around the sensor elements, then the sensor elements are protected from external contact, but the sensing accuracy is reduced due to the influence of the protective cover before the fluid reaches the sensor elements
Solution Approach 1:
The protective cover is designed with a mesh structure consisting of multiple bars arranged in a grid pattern, creating numerous small openings. This porous configuration allows the fluid to pass through the cover and reach the sensor elements while still providing physical protection. The mesh structure balances protection and fluid access, resolving the contradiction between protecting the sensor elements and maintaining sensing accuracy.
2Measurement precision
If the sensor device is designed to improve accuracy in sensing flow from a specific direction, then directional sensing precision is enhanced, but omni-directionality of the sensor elements to the surroundings at 360 degrees is not achieved
Solution Approach 1:
The bars in the mesh structure are arranged at oblique angles rather than perpendicular to the sensor elements. This asymmetric arrangement creates multiple pathways for fluid to reach the sensors from different directions, enabling omni-directional sensing capability while maintaining sensing accuracy.
Solution Approach 2:
The protective cover extends in multiple dimensions with bars arranged in a two-dimensional grid pattern that surrounds the sensor elements from all sides. This multi-dimensional structure allows fluid to approach the sensors from any direction in 360 degrees, achieving omni-directionality while maintaining measurement precision.
3Measurement precision
If the sensor elements are exposed to the outside without a protective cover, then sensing accuracy is maintained, but the sensor elements lack protection from external contact
Solution Approach 1:
The mesh structure of the protective cover provides a porous barrier that allows fluid to pass through while blocking solid particles and external contacts. This resolves the contradiction by maintaining sensing accuracy through fluid access while providing necessary protection from external contact.
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 effectively protects the sensor elements from external contact and improves sensing accuracy by enabling wind to be detected from all directions, thereby enhancing the device's omni-directionality and reliability.
Implementation Method 1
senses the flow of the fluid based on heat radiation at that time
Implementation Method 2
When the resistance element for flow sensing receives a fluid, the temperature of the resistance element for flow sensing decreases
Data Source
AI summary
A sensor device according to the present invention includes: a sensor element including a temperature-sensitive resistor; and a protective cover that protects the sensor element, wherein the sensor element has a shape extending long along one direction, and the protective cover surrounds a periphery of the sensor element with a plurality of support pillars extending obliquely with respect to a longitudinal direction of the sensor element. It is preferable that the plurality of support pillars intersect in a lattice-like manner.