Test Instrument Non-Contact Calibration Drive
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Solution Overview
Problem
Existing calibration methods for testing devices used in material web production are imprecise due to manual insertion of calibration media, leading to fluctuations and potential incorrect calibration.
Innovation Solution
A testing device with integrated drive means for non-contact transport of the calibration medium, allowing multiple measurement values to be detected at various positions, which are then used to determine a stable calibration value, reducing fluctuations and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual insertion method is used to introduce calibration medium into measuring plane, then operation simplicity is maintained, but measurement precision deteriorates due to position fluctuations and insertion errors
Solution Approach 1:
The patent replaces the manual mechanical insertion method with an automated transport system that moves the calibration medium through the measuring plane. The transport system mechanically guides the calibration medium along a defined path, eliminating manual positioning errors while maintaining operational simplicity through automated control.
Solution Approach 2:
The patent changes the operational parameter from static manual insertion to dynamic automated transport. By moving the calibration medium through multiple positions in the measuring plane during calibration, the system collects multiple measurement values that are then averaged, significantly improving measurement precision while the automated control maintains ease of operation.
2Loss of time
If single calibration measurement value is used, then calibration process time is reduced, but measurement precision deteriorates due to unavoidable fluctuations in individual measurements
Solution Approach 1:
The patent implements continuous transport of the calibration medium through the measuring plane, collecting multiple measurement values in succession. This continuous automated process efficiently gathers sufficient data for accurate calibration without significant time loss, as the transport system operates continuously rather than requiring multiple separate manual insertions.
Solution Approach 2:
The patent performs preliminary automated transport and measurement collection before final calibration calculation. The system pre-collects multiple measurement values during the transport phase, then uses these pre-collected data for averaging and calibration determination, separating the data collection phase from the calculation phase to optimize both time and precision.
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 method enhances calibration precision by averaging multiple measurements, eliminating individual value fluctuations and ensuring reproducible detection locations, thus facilitating more accurate device calibration.
Implementation Method 1
drive means which are designed to transport the calibration medium, which is intended for non-contact transport past the testing device, past the testing device by means of contact-free magnetic interaction with the calibration medium
Data Source
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Figure 3a~3b
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AI summary
The invention relates to a test instrument for testing a material web and to a calibration method for the test instrument. The test instrument is equipped with drive means for transporting the calibration medium past the test instrument in order to detect a multiplicity of measured values of the calibration medium. The drive means are arranged in the housing of the test instrument, such that the drive means are protected against humidity or contaminants from the surroundings. In order to enable the transportation of the calibration medium past the test instrument despite the arrangement of the drive means in the housing, drive means are used that are designed for non-contact interaction with the calibration medium and are able to transport the calibration medium past the test instrument without contact. For this purpose, a magnetic interaction between the drive means and the calibration medium is used preferably.