Handheld Multivariable Instrument Calibration With Real-Time Error Evaluation
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Solution Overview
Problem
Current instrument calibration methods for multi-variable instruments are cumbersome, require specialized apparatuses, and struggle with real-time error evaluation, leading to increased costs and inconvenience, especially in field applications.
Innovation Solution
A handheld instrument calibration apparatus with integrated physical quantity input/output units, measurement modules, and a configuration unit that allows for real-time measurement and calibration of multiple variables, enabling intuitive display and conversion of physical quantities without the need for multiple specialized devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate calibration of multiple variables is performed, then the error of each physical quantity can be evaluated, but the overall error of the tested instrument cannot be evaluated and the calibration process becomes complex
Solution Approach 1:
The patent combines multiple physical quantity measurement functions (pressure, temperature, flow rate, etc.) into a single integrated calibration device. The device simultaneously measures multiple physical quantities and performs comprehensive error evaluation through built-in calculation logic, eliminating the need for separate calibration processes for each variable and enabling direct assessment of overall instrument error.
Solution Approach 2:
The calibration device is designed with multi-functionality to handle various physical quantities (pressure, temperature, flow rate, electrical signals) through a single apparatus. It incorporates multiple measurement modules and built-in calculation capabilities that can process different physical quantities simultaneously, making it a universal calibration solution that replaces multiple specialized devices.
2Measurement precision
If multiple special-purpose calibration apparatuses are acquired for different instrument types, then accurate calibration can be achieved, but the cost increases and portability decreases
Solution Approach 1:
The patent creates a universal calibration device that can calibrate multiple types of instruments (flow meters, pressure gauges, temperature sensors, etc.) using a single apparatus. The device incorporates multiple measurement modules and configurable calculation logics that adapt to different instrument types, eliminating the need to acquire and transport multiple specialized calibration devices while maintaining calibration accuracy.
Solution Approach 2:
The patent merges the functions of multiple special-purpose calibration apparatuses into one integrated device. By combining pressure measurement, temperature measurement, flow rate calculation, and electrical signal measurement capabilities in a single portable unit, the device achieves the functionality of multiple separate apparatuses while improving portability and reducing costs.
3Measurement precision
If traditional direct comparison calibration is used, then calibration can be performed, but specialized apparatuses must be used in specific fields making the process inconvenient
Solution Approach 1:
The patent develops a universal calibration device that can perform calibration across multiple fields (flow measurement, pressure measurement, temperature measurement, etc.) using a single apparatus. The device includes multiple measurement modules and built-in calculation capabilities that eliminate the need for field-specific specialized apparatuses, allowing users to perform calibration conveniently in various locations without acquiring multiple specialized devices.
Data Source
AI summary
An instrument calibration apparatus and a calibration method using same. The apparatus comprises a physical quantity input/output unit, a physical quantity measurement unit, a physical quantity configuration unit, a display unit, a man-machine interaction unit, a storage unit, and a control unit. The apparatus can be widely applied to automatic calibration of multivariable instruments.