Multi-Sensor Measuring Device for Intensive Measurands
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Solution Overview
Problem
Current measuring devices for intensive measurands, such as substance concentration and temperature, are not fast or reliable enough, particularly in evaluating diffusion behavior of biological or technical membranes.
Innovation Solution
A measuring device with at least three sensors arranged at different distances from the body, along with an evaluating device that determines a total value for the intensive measurand using a calculation rule, including a model function for temperature convergence, to provide more accurate and quicker results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only one sensor is used in the measuring chamber, then the device complexity is reduced, but the measurement precision and reliability deteriorate
Solution Approach 1:
The measuring chamber is segmented into multiple measurement positions along its length, with at least three sensors arranged at different distances from the body. This segmentation allows simultaneous measurement at multiple locations, improving measurement precision and reliability without requiring a single complex sensor system
Solution Approach 2:
The measurement approach transitions from a single-point measurement to a distributed spatial measurement along the length of the measuring chamber. By arranging sensors at different positions (different distances from the body), the system captures spatial variations in the intensive measurand, enhancing measurement accuracy through dimensional expansion
2Device complexity
If only one sensor is used in the measuring chamber, then the device structure is simplified, but the measurement speed deteriorates
Solution Approach 1:
The measuring chamber is divided into multiple measurement zones with sensors distributed along its length. This segmentation enables parallel measurement at multiple positions simultaneously, significantly increasing measurement speed and productivity while maintaining a relatively simple overall device structure
Solution Approach 2:
The distributed sensor arrangement along the measuring chamber enables continuous spatial sampling of the intensive measurand. This continuous measurement approach eliminates the need for sequential single-point measurements, thereby increasing measurement speed while keeping the device structure straightforward
3Device complexity
If measurements are taken at a single position, then the device structure is simplified, but the measurement reliability deteriorates
Solution Approach 1:
The measuring chamber is segmented into multiple measurement positions with sensors arranged at different distances from the body. This segmentation provides redundant measurement data from multiple locations, improving measurement reliability through spatial averaging and error compensation while maintaining simple device structure
Solution Approach 2:
The system varies the measurement parameter position along the length of the measuring chamber by placing sensors at different distances from the body. This parameter variation (spatial distribution) enhances measurement reliability by capturing spatial variations and reducing the impact of local anomalies, without complicating the device structure
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
The solution enables more accurate and faster measurement of intensive measurands by accounting for initial and final convergence temperatures and spatially resolved concentration measurements, improving reliability and speed of measurement results.
Implementation Method 1
the concentration of a substance emitted or absorbed by a body by diffusion
Implementation Method 2
the temperature... determined by the sensors only slowly adjusts from an initial measured value (Tinitial) to the real body temperature value as the final convergence temperature (Tfinal)
Data Source
AI summary
In a measuring device for measuring an intensive measurand, including at least one measuring chamber having at least one opening, the opening being placeable on the body to be examined. At least three sensors for measuring the intensive measurand are arranged in the measuring chamber, the sensors being arranged at different distances from the body to be examined during measurement. An evaluation device being provided which receives the values measured by the sensors and determines a total value for the intensive measured variable from the at least three measured values as well as a substance or energy diffusion rate.