Measuring Device Self-Verification via Secondary Sensor Comparison
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing measuring devices in process technology require frequent recalibration and proof testing, which often involves manual interruption of the measurement process and device dismantling, making it inefficient and inconvenient, especially in critical applications where continuous monitoring is necessary.
Innovation Solution
A measuring device and arrangement that allows for simplified functionality checks by utilizing redundant data from secondary measuring devices, enabling continuous operation and avoiding device dismantling, with the control device comparing measured values from primary and secondary sensors to detect deviations and perform recalibrations as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If proof testing is performed manually or offline, then reliability can be verified, but the measurement process must be interrupted and device dismantling is required
Solution Approach 1:
The measuring device performs self-verification by automatically comparing its own measurement results with those of a secondary measuring device. The control device triggers the verification process and evaluates consistency without external intervention, allowing the system to check its own functionality while continuing to operate.
Solution Approach 2:
The control device receives measurement data from both the primary and secondary measuring devices, compares the results, and provides feedback on the functionality of the primary measuring device. This closed-loop verification enables continuous monitoring of measurement accuracy without interrupting the measurement process.
2Reliability
If proof testing is performed manually or offline, then individual components can be examined, but device dismantling is required
Solution Approach 1:
The measuring device verifies its own components through automatic comparison with a secondary device, eliminating the need for physical dismantling. The control device manages the verification process and evaluates component functionality while the device remains assembled and operational.
3Measurement precision
If recalibration is performed regularly, then measurement accuracy is maintained, but the measurement process is interrupted
Solution Approach 1:
The control device continuously monitors measurement results from both measuring devices and triggers recalibration only when deviations are detected. This feedback-driven approach maintains measurement accuracy while minimizing interruptions to the measurement process.
Solution Approach 2:
The system performs preliminary verification by continuously comparing measurements from the primary and secondary devices. When consistency is confirmed, the primary device can operate without immediate recalibration, planning maintenance activities in advance to minimize disruption.
Data Source
Figure 1
AI summary
A measuring device (1) comprising a sensor device (2), a processing device (3), a storage device (4), an interface (5), and a control device (6) is described and illustrated. The invention is based on the objective of proposing a measuring device that allows for a simplified verification of the measuring device's functionality. This objective is achieved by the control device (6) querying externally provided data via the interface (5) and performing a verification of the measuring device (1). This verification consists either of the control device (6) determining a reference value from the externally provided data, comparing the reference value with a measured value generated by the processing device (3), and generating a comparison result based on this comparison.Alternatively, the verification consists of the control device (6) using the externally provided data to generate new calculation data to be stored in the storage device (4) and storing the new calculation data in the storage device (4). Furthermore, the invention relates to a measuring arrangement (13).