Pressurized Fluid Container With Electronic Temperature Compensation
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Solution Overview
Problem
Existing fluid containers, such as gas cylinders, experience inaccuracies in volume, pressure, and autonomy displays due to thermal phenomena and pressure changes, leading to erroneous readings when temperature varies significantly.
Innovation Solution
A pressurized fluid container equipped with pressure and temperature sensors that measure raw values, apply corrections using pre-recorded data to determine corrected values, and display reference pressure and autonomy, ensuring accuracy across temperature variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If raw pressure and temperature measurements are displayed directly, then the display is simple and responsive, but the readings become inaccurate when temperature varies significantly
Solution Approach 1:
The patent applies preliminary action by pre-storing correction factors in memory before actual measurements are taken. These correction factors are prepared in advance based on reference conditions, allowing the system to quickly apply corrections without complex real-time calculations. The microprocessor retrieves pre-stored correction factors and applies them to raw measurements to obtain accurate corrected values, resolving the contradiction between measurement accuracy and device complexity.
Solution Approach 2:
The patent uses an intermediary approach by introducing correction factors as intermediate elements between raw measurements and final displayed values. These correction factors mediate the relationship between sensor readings and actual physical quantities, transforming inaccurate raw data into accurate corrected values. The correction factors serve as a bridge that reconciles the simplicity of direct display with the need for measurement precision under varying temperature conditions.
2Measurement precision
If correction factors are applied to measurements, then measurement accuracy improves, but the calculation time and processing complexity increase
Solution Approach 1:
The patent resolves the time complexity contradiction by performing preliminary action - pre-calculating and storing correction factors in memory before actual measurements are taken. When measurements occur, the microprocessor simply retrieves pre-stored correction factors and applies them through straightforward multiplication or lookup operations, rather than performing complex real-time calculations. This dramatically reduces calculation time while maintaining high accuracy in autonomy calculations under varying temperature conditions.
3Stability of the object's composition
If reference pressure is displayed instead of raw pressure, then the displayed values remain consistent across temperature changes, but the display shows corrected rather than actual values
Solution Approach 1:
The patent uses correction factors as intermediary elements that mediate between actual pressure values and displayed reference pressure values. These correction factors translate actual measurements into equivalent reference condition values, allowing the display to show consistent reference pressure that reflects actual conditions without showing raw temperature-dependent values. This intermediary transformation preserves the information relationship while achieving display consistency across temperature variations.
Solution Approach 2:
The patent applies parameter changes by transforming the pressure parameter from its raw, temperature-dependent form to a corrected form that references standard conditions. The microprocessor changes the pressure parameter representation by applying temperature compensation, converting actual pressure measurements into equivalent reference pressure values. This parameter transformation maintains the physical meaning while eliminating temperature variability from the display, providing stable reference values that users can reliably interpret.
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 solution provides precise volume, pressure, and autonomy calculations, maintaining consistent readings despite temperature changes, enhancing user trust and operational reliability.
Implementation Method 1
pressure and temperature measuring means for measuring the pressure and temperature of the fluid contained in the internal volume of the fluid container
Implementation Method 2
pressure and temperature measuring means for measuring the pressure and temperature of the fluid contained in the internal volume of the fluid container
Implementation Method 3
correct the raw pressure (P1) and raw temperature (T1) values using at least one pre-recorded correction and obtain a corrected pressure (P2) and a corrected temperature (T2)
Implementation Method 4
determine a reference pressure (P3) from the corrected pressure (P2), the corrected temperature (T2) and a stored reference temperature (T3)
Data Source
Figure 1~2
AI summary
The invention relates to a pressurized fluid container (1), in particular a gas cylinder, comprising a fluid dispensing valve (3) equipped with an electronic device (7) including pressure and temperature measurement means; data processing means (5) comprising at least one microprocessor (15) for processing all or part of the measurements; and display means (6) for displaying a fluid volume, a fluid pressure, and/or fluid autonomy. The pressure and temperature measurement means measure a raw pressure (P1) and a raw temperature (T1). The data processing means (5) correct these values (P1, T1) using a pre-recorded correction to obtain corrected pressure (P2) and corrected temperature (T2) values, which are then used to determine a reference pressure (P3) and/or a fluid volume and/or a fluid autonomy calculated using the reference pressure (P3).