Hydrogen Peroxide Reservoir Float Sensing for Precise Flow Measurement
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Solution Overview
Problem
Existing hydrogen peroxide reservoir systems face challenges in accurately measuring low flow rates due to limitations in sensor technology and device construction, leading to reduced readability and determination of flow rates.
Innovation Solution
A hydrogen peroxide reservoir assembly featuring a lower and upper manifold, a float member with a laser position sensor, and a recirculation valve, which includes a manifold locating and coupling system, a transparent upper cover, and a sensor system for precise float position determination, enhancing measurement accuracy and flow rate calculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional level sensors are used in hydrogen peroxide reservoir systems, then the device construction is simpler, but the measurement precision of flow rates deteriorates
Solution Approach 1:
The patent replaces conventional mechanical level sensors with a laser-based float position sensor system. The laser sensor optically tracks the position of a float member within the reservoir, substituting mechanical contact measurement with optical detection. This achieves higher measurement precision for flow rates while the float mechanism maintains mechanical simplicity.
Solution Approach 2:
The patent introduces a float member as an intermediary between the liquid level and the sensor system. The float responds to liquid level changes and transmits this information to the laser sensor through optical detection of the float's position, enabling precise measurement without direct sensor contact with the hydrogen peroxide.
2Measurement precision
If the reservoir system uses compact construction, then the device size is reduced, but the readability and determination accuracy of flow rates deteriorates
Solution Approach 1:
The patent transitions from measuring liquid level in a single vertical dimension to using optical detection in multiple dimensions. The laser sensor can detect float position not only vertically but also laterally, providing more comprehensive position information from a compact reservoir volume, thereby maintaining measurement precision without increasing overall device size.
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 provides improved accuracy in measuring flow rates, allowing for precise determination of flow rates, reducing errors, and maintaining sterility by minimizing air pockets and ensuring reliable readings.
Implementation Method 1
The float member is positioned within the reservoir and is structurally configured to slidably move between the upper and lower manifolds within the reservoir body
Implementation Method 2
The sensor system has a float position sensor comprising a laser sensor. The float position sensor is positioned over the upper cover and targeting the upper target of the float member to, in turn, determine the position of the float member relative to the float position sensor
Data Source
AI summary
A reservoir assembly comprising a lower manifold, an upper manifold, a reservoir body, a float member and a sensor system. The upper manifold has an upper cover placed over a central bore, and sealingly engaged therewith, the upper cover being at least partially transparent. The reservoir body has a lower end sealingly engaged with the lower manifold and the upper end sealingly engaged with the upper manifold. The float member is positioned within the reservoir and can slidably move between the upper and lower manifolds. The float member has an upper target that is substantially parallel to an upper cover positioned on the upper manifold. The sensor system has a float position sensor positioned over the upper cover and targeting the upper target of the float member to, in turn, determine the position of the float member relative to the float position sensor.