Self-Vibrating pH Probe Assembly for Synchronized Ion Dispersion
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Solution Overview
Problem
Ion buildup on pH sensors impairs their ability to consistently and accurately measure pH, particularly when solutions are still or exhibit minimal movement, and random agitation can disrupt measurements.
Innovation Solution
A self-vibrating pH probe assembly with adjustable vibration parameters, including amplitude, duration, and timing, is used to disperse ion buildup through direct or indirect vibration of the probe or solution proximal to the probe tip, coordinated with pH sampling to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If solution movement is increased to reduce ion buildup, then ion deposition is reduced, but measurement consistency deteriorates due to agitation at critical times
Solution Approach 1:
The patent applies mechanical vibration through a vibration source (such as an ultrasonic transducer or eccentric rotating mass) that generates controlled oscillations of the pH probe tip. This vibration mechanically disrupts ion layer formation on the probe surface, preventing ion buildup without requiring bulk solution agitation. The vibration frequency and amplitude are controlled to be sufficient for ion dispersion but minimal enough to avoid affecting pH measurement consistency.
Solution Approach 2:
The vibration is applied periodically rather than continuously, with controlled duty cycles that activate vibration only when ion buildup is detected or at predetermined intervals. This periodic application maintains measurement consistency by limiting vibration to specific time windows while still effectively preventing ion layer accumulation during critical measurement periods.
2Object-affected harmful factors
If vibration amplitude is increased to improve ion dispersion, then ion mitigation effectiveness improves, but probe mechanical stress increases
Solution Approach 1:
The vibration parameters (amplitude, frequency, duration) are made dynamically adjustable based on operating conditions. The system monitors ion buildup levels and solution characteristics, then adapts vibration intensity accordingly. This dynamic control ensures sufficient vibration for ion mitigation while avoiding excessive amplitude that would cause probe damage, extending probe durability.
Solution Approach 2:
The patent changes vibration parameters (amplitude, frequency, pulse width) based on detected conditions such as ion buildup magnitude, solution viscosity, and probe age. By adjusting these parameters rather than using fixed high amplitude, the system achieves effective ion dispersion while maintaining mechanical stress within safe limits for the probe structure.
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 self-vibrating pH probe effectively mitigates ion buildup, enhancing measurement accuracy and consistency by synchronizing vibration with sampling to reduce ion deposition impacts.
Implementation Method 1
A self-vibrating pH probe assembly with adjustable vibration parameters, including amplitude, duration, and timing, is used to disperse ion buildup through direct or indirect vibration of the probe or solution proximal to the probe tip
Data Source
AI summary
A method of predicting a vibration event is comprised of the following: time stamping a set of vibration events initiated by a processor adapted to control when a vibration source is activated relative to a sample event; recording a vibration action for each event in the set of vibration events including at least one of a sampling solution type, a vibration element type, a proximity of a vibration element to a sample element, a sample mode, a time to a next sample event, or a degree of solution activity; and predicting at least one of a type or a time of a next vibration action based on the vibration action record.