Analyzer Agitation Unit Vibration Feedback Control
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Solution Overview
Problem
Existing analyzers face challenges in ensuring consistent agitation of liquids during sample preparation, leading to incomplete mixing and potential analysis errors due to variations in vibration states caused by errors in attachment, motor speed variations, and environmental changes.
Innovation Solution
An analyzer system comprising an agitation unit with a vibrator and a detector that corrects vibration based on detected states, ensuring a consistent rotational trajectory by adjusting motor speed to maintain a normal agitation state, and notifies users of abnormal agitation conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vibration motor is used to agitate the liquid, then the agitation function is achieved, but the vibration state varies due to motor speed variations and attachment errors
Solution Approach 1:
The patent employs a feedback mechanism where a detector monitors the actual vibration state of the container during agitation, and the control unit adjusts the motor speed based on this feedback to maintain the desired vibration state. This closed-loop control compensates for motor speed variations and attachment errors, ensuring consistent agitation reliability.
Solution Approach 2:
The system dynamically changes the motor operating parameters (speed) based on detected vibration state deviations. By adjusting motor speed in real-time according to feedback from the detector, the system maintains optimal agitation conditions despite initial manufacturing variations or environmental changes.
2Productivity
If the motor speed is increased to improve mixing, then agitation effectiveness improves, but vibration anomalies and abnormal agitation conditions occur
Solution Approach 1:
The detector continuously monitors vibration state parameters, and when abnormal agitation conditions are detected (indicating excessive or improper mixing), the control unit adjusts motor speed to bring the agitation back within normal parameters. This prevents over-mixing or damaging vibration conditions while maintaining effective mixing.
3Manufacturing precision
If vibration correction is implemented based on detection, then agitation consistency improves, but device complexity increases due to additional components
Solution Approach 1:
The patent adds a detector and control unit to create a closed-loop feedback system that automatically monitors and adjusts vibration state. This feedback mechanism enables precise vibration control to compensate for manufacturing variations, achieving high agitation consistency despite the increased device complexity from additional components.
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 system effectively suppresses variations in agitation states, ensuring complete mixing and reliable analysis results by correcting vibration anomalies and promptly notifying users of agitation abnormalities.
Implementation Method 1
an elastic member that elastically supports the holder member
Data Source
AI summary
Analyzers are described that control sample agitation by detecting vibration acceleration and using feedback to control the agitation and also alert to the presence of abnormal agitation. An embodiment provides an analyzer comprising a liquid agitation unit; an agitated liquid analysis unit; and a unit that controls the agitation unit. The agitation unit includes a vibrator of a liquid container and a detector of vibration of the container and that outputs a signal to the control unit, which responds by regulating the vibrator.