Bubble Measurement Device Flow Velocity Control for Microbubble Imaging
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Solution Overview
Problem
Conventional bubble measurement devices struggle to capture sharp images of fine bubbles, particularly microbubbles with diameters between 1 to 100 μm, due to their small buoyancy and the difficulty in introducing them into an imaging cell.
Innovation Solution
The bubble measurement device includes a measurement chamber with an image capturing surface, an introduction pipe for introducing bubbles, a supply pump for adjusting flow velocity, and an image capturing device with sufficient resolution to capture sharp images of microbubbles. The flow velocity is adjusted to ensure that bubbles can be measured effectively within a predetermined range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional bubble measurement devices are used to measure fine bubbles, then the measurement process can be performed, but sharp images cannot be captured due to blurred images
Solution Approach 1:
The patent applies dynamics by adjusting the flow velocity of the liquid containing bubbles through a flow velocity adjusting mechanism. This allows optimization of the bubble flow rate to achieve the optimal balance between capturing sharp images and maintaining measurable bubble characteristics. The flow velocity is dynamically controlled to ensure bubbles move at a speed that allows clear imaging while preserving their fine bubble properties.
Solution Approach 2:
The patent changes the flow velocity parameter of the liquid-bubble mixture to optimize image quality. By adjusting this parameter through the flow velocity adjusting mechanism, the system achieves sharp images of fine bubbles while maintaining measurement reliability. This parameter optimization ensures that bubbles are captured at a speed that allows clear imaging without blurring.
2Measurement precision
If fine bubbles are introduced into the imaging cell, then measurement can be performed, but the buoyancy of fine bubbles is very small making introduction difficult
Solution Approach 1:
The patent uses an intermediary approach by introducing bubbles through a controlled flow system rather than relying solely on natural buoyancy. The flow velocity adjusting mechanism acts as an intermediary that facilitates the introduction of fine bubbles into the measurement chamber at controlled speeds, overcoming the limitation of their small buoyancy forces.
Solution Approach 2:
The patent replaces the reliance on natural buoyancy (a physical mechanism) with a flow velocity controlled introduction system. Instead of depending on the weak buoyant force of fine bubbles to rise into the imaging cell, the system uses controlled liquid flow to deliver bubbles to the measurement chamber, making the introduction process more reliable and controllable.
3Productivity
If bubbles move too quickly through the imaging cell, then introduction is easier, but images become blurred
Solution Approach 1:
The patent applies dynamics by optimizing the flow velocity of bubbles through the imaging cell. The flow velocity adjusting mechanism allows control over bubble speed to achieve the optimal balance between efficient introduction and sharp image capture. Bubbles are moved at a controlled velocity that ensures clear imaging while maintaining adequate introduction efficiency.
Solution Approach 2:
The patent changes the flow velocity parameter to optimize both introduction efficiency and image quality. By adjusting this critical parameter, the system achieves sharp images while maintaining effective bubble delivery. The flow velocity is optimized to ensure bubbles are captured clearly without excessive motion blur.
4Productivity
If flow velocity is increased to improve bubble introduction, then introduction efficiency improves, but image quality deteriorates
Solution Approach 1:
The patent uses dynamics to optimize the flow velocity parameter, adjusting it to achieve the optimal balance between bubble delivery rate and image clarity. The flow velocity adjusting mechanism enables real-time optimization of this trade-off, ensuring that bubbles are delivered efficiently while maintaining sufficient image quality for accurate measurement.
Solution Approach 2:
The patent optimizes the flow velocity parameter to balance productivity and measurement precision. By carefully controlling this parameter, the system achieves adequate bubble introduction efficiency while preventing image blurring. This parameter optimization ensures both effective bubble delivery and clear imaging.
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
This configuration allows for the capture of sharp images of fine bubbles, enabling accurate measurement of their diameters and size distribution, which is essential for applications like mineral processing.
Implementation Method 1
a supply pump (20) provided above the measurement chamber and configured to draw up the liquid containing the bubbles so as to supply the liquid into the measurement chamber
Implementation Method 2
the measurement chamber has an image capturing surface at a position where the introduced bubbles rise
Data Source
AI summary
A bubble measurement device for measurement of bubbles moving in a liquid includes a measurement chamber having an image capturing surface; an image capturing device that captures an image of the bubbles passing along the image capturing surface; an introduction pipe that introduces the bubbles into the measurement chamber; a retaining tank that stores the liquid; a supply pump that draws up the liquid; a drain pipe that returns the liquid into the retaining tank; and a flow velocity adjusting mechanism that adjusts a flow velocity of the liquid passing along the image capturing surface. The flow velocity adjusting mechanism adjusts the flow velocity of the liquid passing along the image capturing surface to be within a range in which the bubbles are measurable. The range is obtained in advance in accordance with an image resolution and a shutter speed of the image capturing device.