Flowmeter System Accuracy Calculation Method
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Solution Overview
Problem
In multi-flowmeter systems, particularly in large engine fuel systems, achieving accurate fuel consumption measurements is challenging due to flow restriction and accuracy issues when multiple flowmeters are used in series, exacerbated by temperature differentials and zero-stability variations, with existing methods failing to quantify measurement accuracy effectively.
Innovation Solution
A method and system that calculates system accuracy by inputting hardware specifications and system parameters into a computing device, using system logic to determine supply and return flowmeter uncertainties, and outputting temperature-corrected system accuracy, while also generating notifications for incompatible inputs, to optimize flowmeter configurations and ensure accurate fuel consumption measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple flowmeters are used in series to measure fuel consumption, then measurement coverage is improved, but measurement precision deteriorates due to accumulated errors and temperature differentials
Solution Approach 1:
The system performs preliminary zeroing of flowmeters at factory conditions before installation, establishing baseline accuracy. This preliminary calibration compensates for potential drift during operation, maintaining measurement precision across multiple meters in series.
Solution Approach 2:
The system continuously monitors temperature differentials between flowmeters and uses this feedback to calculate and apply temperature-corrected accuracy values. This real-time correction compensates for temperature-induced measurement drift, maintaining precision despite environmental variations.
2Reliability
If flowmeters are installed in series to monitor fuel consumption, then reliability is improved, but device complexity increases
Solution Approach 1:
The system uses a unified accuracy calculation methodology that handles both single and multiple flowmeter configurations through the same mathematical framework. This universal approach simplifies the overall system complexity while maintaining reliability through redundant measurement paths.
Solution Approach 2:
The system dynamically adjusts accuracy calculations based on operating parameters such as temperature differentials and flow rates. By changing calculation parameters rather than physical configuration, the system maintains reliability without proportionally increasing complexity.
3Measurement precision
If temperature correction is applied to improve accuracy, then measurement precision is improved, but calculation complexity increases
Solution Approach 1:
The system replaces complex physical temperature compensation mechanisms with computational algorithms. By using mathematical models to calculate temperature-corrected accuracy, the system achieves high measurement precision without the mechanical complexity of active temperature control or compensation hardware.
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 enables accurate determination of system accuracy and optimal flowmeter configurations, minimizing errors and ensuring proper fuel management in multi-flowmeter systems by quantifying measurement uncertainties and correcting for temperature variations, thereby enhancing the precision and reliability of fuel consumption calculations.
Implementation Method 1
An alternating current is passed to the drive coil for vibrating the conduit(s) at a desired conduit amplitude and frequency
Implementation Method 2
the pickoffs can use the motion provided by the driver to induce a voltage
Implementation Method 3
As material begins to flow through the flowmeter, Coriolis forces cause each point along the conduit(s) to have a different phase
Data Source
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AI summary
A method for determining system accuracy is provided. The method includes the steps of inputting hardware specifications related to a supply flowmeter into a computing device and inputting hardware specifications related to a return flowmeter into the computing device. Additionally, the method includes inputting system parameters into the computing device. System accuracy is calculated with system logic, wherein the system logic receives the inputs based on hardware specifications related to the supply flowmeter, the hardware specifications related to the return flowmeter, and the system parameters. The calculated system accuracy is stored in a computer-readable storage media, and the calculated system accuracy is output.