External Calibration Sensor for Optical Measuring Apparatus Temperature Drift
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Refractometers and other optical measuring apparatuses face inaccuracies due to temperature sensor drift and deviations from standardized wavelengths and temperatures, leading to measuring errors, which are difficult to calibrate accurately, especially when the temperature sensor is integrated within the apparatus and cannot be directly calibrated without disrupting the measurement process.
Innovation Solution
A calibration device with a traceably calibratable external temperature sensor is used to determine the calibration temperature near the measuring surface, allowing for the adjustment of the integrated temperature sensor to correct discrepancies and maintain accurate temperature measurements, even when the sensor has drifted over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an integrated temperature sensor is used within the measuring apparatus, then the measurement process can be maintained without disruption, but the sensor drifts over time and becomes difficult to calibrate accurately
Solution Approach 1:
The patent introduces a calibration temperature sensor as an intermediary device that temporarily replaces the integrated temperature sensor during calibration. This external calibration sensor provides a known reference temperature to accurately determine the relationship between the integrated sensor's readings and actual temperature, enabling precise calibration without disrupting the overall measurement process.
2Measurement precision
If the temperature sensor is calibrated externally, then calibration accuracy can be improved, but the calibration process becomes more complex and requires intervention in the sensor path
Solution Approach 1:
The patent implements a self-service calibration mechanism where the determining unit automatically processes the calibration data obtained from the external calibration sensor. The system self-adjusts the relationship between the integrated temperature sensor and actual temperature based on the calibration measurements, eliminating the need for complex manual calibration procedures and reducing user intervention requirements.
3Reliability
If the temperature sensor properties change over time, then measuring errors occur, but frequent recalibration increases time loss and reduces productivity
Solution Approach 1:
The patent enables preliminary calibration actions to be performed quickly using the external calibration sensor. By having a readily available calibration device with a known reference temperature, the system can perform rapid calibration checks and adjustments without requiring complex setup procedures, thereby minimizing time loss while maintaining measurement reliability over time.
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 solution ensures precise temperature calibration and measurement accuracy, reducing systematic errors and enabling the apparatus to maintain high accuracy over time without requiring complex recalibration procedures or intervention in the sensor path.
Implementation Method 1
a, preferably measuring apparatus-external, calibration-temperature sensor, which itself is traceably calibratable, for determining a calibration-temperature in the region of a measuring surface of the measuring apparatus
Implementation Method 2
a measuring apparatus-temperature sensor for capturing a measuring apparatus-temperature in the region of the measuring surface
Data Source
AI summary
Measuring apparatus-calibration device for calibrating a measuring apparatus-temperature sensor of a, in particular optical, measuring apparatus, wherein the measuring apparatus-calibration device comprises a, preferably measuring apparatus-external, calibration-temperature sensor, which is traceably calibratable itself, for determining a calibration temperature in the region of a measuring surface of the measuring apparatus and a determination unit which is adapted for determining an information which is indicative for a discrepancy between a measuring apparatus-temperature which is captured by the measuring apparatus-temperature sensor in the region of the measuring surface and the calibration temperature, on whose basis the measuring apparatus-temperature sensor is calibratable.