Cycloidal Probe Guides Air Bubbles in Optical Water Quality Detection
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Solution Overview
Problem
Conventional optical water quality detection devices face issues with air bubbles forming in the detecting channel, which affect spectral information and can cause misjudgment of aqueous solution components, and vibration methods to remove bubbles can damage the device's structural integrity.
Innovation Solution
The optical water quality detection device features a fencing frame with a cycloidal guiding protrusion and elongated orifices that guide air bubbles out of the detecting channel without vibration, ensuring accurate spectral information and maintaining the device's structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vibration is applied to eliminate air bubbles from the detecting channel, then air bubbles are removed, but structural loosening and short circuits occur on optical elements
Solution Approach 1:
The patent extracts the air bubble removal function from the main device body by introducing a separate probe structure. The probe is inserted into the detecting channel to locally remove air bubbles through its specialized geometry, rather than vibrating the entire device. This isolates the air removal action from the optical elements, preventing structural damage while maintaining detection accuracy.
Solution Approach 2:
The probe acts as an intermediary element between the air bubbles and the detecting channel. Its cylindrical shape with tapered ends and specific surface properties allow it to interact with air bubbles (causing them to coalesce and rise) without requiring direct vibration of the sensitive optical components. The probe mediates the air removal process in a way that protects the optical elements.
2Strength
If air bubbles remain in the detecting channel, then the device structure remains intact, but spectral information is affected causing misjudgement
Solution Approach 1:
The probe design enables self-service air bubble removal through its geometric properties. The cylindrical shape with tapered ends creates a situation where air bubbles naturally coalesce upon contact with the probe surface and rise to the surface without external vibration. The system uses its own structure (the probe geometry) to eliminate air bubbles, maintaining both structural integrity and measurement precision.
3Ease of operation
If a detecting probe with light source and spectrophotometer is used, then detection is simplified, but air bubbles form easily when entering aqueous solution
Solution Approach 1:
The patent segments the detection system into a main device and a separate probe. The probe is designed with specific anti-bubble features (cylindrical shape, tapered ends) that address the air bubble problem locally at the detection interface. This segmentation allows the main device to remain simple while the probe handles the air bubble issue, maintaining ease of operation without bubble-related interference.
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 removes air bubbles from the detecting channel, preventing misjudgment of aqueous solution components and protecting the device from structural damage, while maintaining accurate spectral information and providing correct results.
Implementation Method 1
The convex surface extends between the two side panels along a cycloidal path and has two opposite end edges connected with the two side panels respectively
Implementation Method 2
The light source module on one side of the optical water quality detection device emits a light beam to the aqueous solution and the spectrophotometer on the other side of the optical water quality detection device receives the light beam that passes through the aqueous solution
Implementation Method 3
Since different components in the aqueous solution have different absorption capacities for lights of different wavelengths in the light beam, concentration of a specific component in the aqueous solution can be obtained by analyzing the spectral information
Implementation Method 4
the resulting spectral information would be affected, causing misjudgement of the components in the aqueous solution. Generally, air bubbles in fluid can be eliminated by vibration. In addition to encouraging the air bubbles to flow upward and be expelled from the fluid
Data Source
AI summary
An optical water quality detection device with an examining property probe, which includes two stationary seats and a fencing frame. The fencing frame is detachably mounted in a detecting channel between the two stationary seats and has a guiding protrusion and two elongated orifices. The guiding protrusion protrudes from an inner side of an upper portion of the fencing frame and has a convex surface. The convex surface extends along a cycloidal path. The two elongated orifices are formed through the two side panels respectively and extend to the bottom panel. The cycloidal path on the convex surface in the fencing frame, with its structural design, assists in guiding the air bubbles stuck in the detecting channel to leave the detecting channel without vibrating the examining property probe. Since the air bubbles do not remain in the detecting channel, the spectral information is not affected.