HPLC Fluid Path Bubble Detection Through Electromagnetic Signals
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Solution Overview
Problem
Existing analytical devices, particularly HPLC systems, face challenges in accurately detecting and removing gas bubbles in fluid paths, which can distort measurements and potentially damage instruments, with conventional methods being inefficient and requiring additional equipment.
Innovation Solution
A method and device utilizing an electromagnetic signal detector to identify gas bubbles by responding to a pressure signal, determining bubble presence through electromagnetic signal contraction and expansion, and employing existing pressurizing devices and detectors within the HPLC system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bubble detection methods are used, then bubble detection capability is provided, but additional equipment and increased device complexity are required
Solution Approach 1:
The electromagnetic signal detector is configured to perform both its original analytical detection function and bubble detection function. By monitoring electromagnetic signals in response to pressure signals, the existing detector identifies bubbles without requiring separate detection equipment, thereby reducing device complexity while maintaining reliable bubble detection capability
Solution Approach 2:
The system uses its own existing electromagnetic signal detector and pressurizing device to detect bubbles, rather than requiring external specialized equipment. The detector leverages the pressure signals already present in the system to identify bubbles through electromagnetic signal responses, making the system self-sufficient for bubble detection
2Device complexity
If existing HPLC components are utilized for bubble detection, then device complexity is reduced, but bubble detection efficiency must be maintained
Solution Approach 1:
The system detects bubbles by monitoring changes in electromagnetic signal parameters in response to pressure variations. When a bubble is present, it causes characteristic changes in the electromagnetic signal response to pressure signals, allowing efficient detection using existing components without compromising detection speed or accuracy
Solution Approach 2:
The electromagnetic signal detector provides feedback about bubble presence by analyzing the response of electromagnetic signals to applied pressure signals. This feedback mechanism enables the system to efficiently identify bubbles using existing HPLC components, maintaining high detection efficiency while avoiding additional hardware
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 efficient and reliable bubble detection and removal, enhancing measurement accuracy and preventing instrument damage without the need for additional hardware, by leveraging existing HPLC components.
Implementation Method 1
determining the presence of the bubble in the fluid path based on the detected electromagnetic signal... because the bubble responds with a contraction and expansion to the pressure signal
Data Source
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Figure 7A~7B
AI summary
There is described a method for detecting a bubble (150), in particular a gas bubble, in an analytical device (10), the method comprising: i) detecting in a fluid path an electromagnetic signal (110) in response to a provided flow/pressure signal (120); and ii) determining the presence of the bubble (150) in the fluid path based on the detected electromagnetic signal (110).