Remote Liquid Sampling Line Detection for Bubble-Free Analysis

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Solution Overview

Problem

Existing sample analysis systems face challenges in determining whether a continuous liquid sample segment is present in the transfer line for analysis, particularly over long distances, which can lead to inaccuracies and inefficiencies due to the presence of bubbles or gaps in the sample transfer line.

Innovation Solution

A system comprising a sample receiving line with detectors at multiple locations to register the presence of a continuous liquid segment, using a controller to ensure that only a sufficient and uninterrupted sample is sent to the analysis device, thereby preventing the transfer of gaps or voids.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If sample transfer lines are used to transport liquid samples over long distances, then sample analysis capability is improved, but the risk of bubbles or gaps forming in the sample increases

Engineering Contradiction:
Improvesample analysis capabilityVSAvoidsample continuity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary detection of sample continuity using detectors positioned along the transfer line before the sample reaches the analysis device. This allows the system to identify bubbles or gaps in advance and take corrective action, such as flushing the line or repeating the sample collection, ensuring only continuous samples are analyzed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback control by continuously monitoring the sample stream with detectors and using this information to control the sampling process. When a discontinuity is detected, the system responds by adjusting the sampling operation, thereby maintaining sample reliability throughout the transfer process.

Inventive Principle:
Principle #23Feedback

2Reliability

If multiple detectors are added to verify continuous liquid segment, then sample transfer reliability is improved, but device complexity increases

Engineering Contradiction:
Improvesample transfer reliabilityVSAvoiddetector system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The detection function is segmented into multiple detectors positioned at different locations along the transfer line. Each detector independently monitors a specific segment of the sample flow, and the controller integrates these segmented detection results to determine overall sample continuity. This segmentation approach improves reliability without requiring a single complex detection system.

Inventive Principle:
Principle #1Segmentation

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 approach ensures accurate and efficient sample analysis by confirming the presence of a continuous liquid sample segment before transferring it to the analysis device, reducing the risk of dilution errors and maintaining analysis accuracy.

Implementation Method 1

a first detector configured to detect the liquid segment at a first location in the sample receiving line; a second detector configured to detect the liquid segment at a second location in the sample receiving line

Methodology Applied
Scientific EffectDetection of liquid presence:

Data Source

PatentUS12174211B2System for collecting liquid samples
Publication Date: 2024.12.24 ELEMENTAL SCI
  • US12174211B2 patent drawing
  • US12174211B2 patent drawing
  • US12174211B2 patent drawing

AI summary

Systems and methods are described to determine whether a sample transmitted through a transfer line from a remote sampling system contains a suitable sample to analyze by an analysis system. A system embodiment includes, but is not limited to, a sample receiving line configured to receive a liquid segment a first detector configured to detect the liquid segment at a first location in the sample receiving line; a second detector configured to detect the liquid segment at a second location in the sample receiving line downstream from the first location; and a controller configured to register a continuous liquid segment in the sample receiving line when the first detector and the second detector match detection states prior to the controller registering a change of state of the first detector.