Vibratory Meter Zero Verification Using Fluid-Based Criteria
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Solution Overview
Problem
Existing vibratory meters lack a suitable zero-verification criteria that can adapt to varying process requirements and ensure accurate flow rate measurements, as factory-calibrated values may not account for installation-specific conditions and fluid properties.
Innovation Solution
The meter electronics select a zero-verification criteria based on fluid properties such as density and phase, allowing for customized verification processes that account for specific installation and fluid characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed zero-verification criteria is used for all processes, then the device complexity is reduced, but the measurement precision deteriorates because factory-calibrated values do not account for installation-specific conditions and fluid properties
Solution Approach 1:
The patent applies dynamics by making the zero-verification criteria adaptive rather than fixed. The meter electronics automatically select different verification criteria based on detected fluid properties (density, phase) and process conditions. This dynamic adaptation allows the system to maintain high measurement precision across varying installations and fluid types without requiring manual configuration, resolving the contradiction between precision and complexity.
Solution Approach 2:
The patent changes the verification criteria parameters based on fluid density and phase detection. Different density thresholds and verification standards are applied depending on whether the fluid is liquid or gas, and based on specific density ranges. This parameter adaptation enables accurate verification for diverse processes while keeping the underlying measurement principles standardized, thus improving precision without proportionally increasing complexity.
2Adaptability or versatility
If multiple customized zero-verification criteria are implemented for different fluid properties and processes, then the adaptability is improved, but the device complexity increases due to the need for automatic criteria selection based on fluid properties
Solution Approach 1:
The system applies self-service by automatically detecting fluid properties (density, phase) and selecting appropriate verification criteria without external intervention. The meter electronics autonomously determine which verification standard to apply based on real-time process conditions, eliminating the need for manual configuration and reducing operational complexity despite supporting multiple customized criteria for different applications.
Solution Approach 2:
The patent implements feedback mechanisms where the measured fluid properties feed back into the criteria selection process. The system continuously monitors density and phase, uses this information to select appropriate verification criteria, and adjusts verification parameters accordingly. This closed-loop approach enables high adaptability to different processes while maintaining manageable system complexity through automated decision-making.
Data Source
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AI summary
A meter electronics (20) for selecting a zero-verification criteria for performing a zero verification of a vibratory meter (5) is provided. The meter electronics (20) comprises an interface (401) communicatively coupled to a sensor assembly (10) containing a fluid and a processing system (402) communicatively coupled to the interface (401). The processing system (402) is configured to determine a property of a fluid and select, based on the property of the fluid, the zero-verification criteria value for the sensor assembly (10).