Flow Probe Distance Sensing for Accurate Channel Position Mapping
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Solution Overview
Problem
Existing flow probes require manual traversal of measuring points, leading to errors in determining location-dependent measured variables due to user intervention.
Innovation Solution
Incorporating a distance sensor on the distal end of a shaft to automatically determine the position of the measuring probe, allowing for continuous measurement and precise location-dependent variable determination, with optional feedback signals and orientation correction using an acceleration sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual traversal of measuring points is used, then the flow probe can determine location-dependent measured variables, but user intervention leads to errors in measurement
Solution Approach 1:
The system performs measurements automatically using an automated moving mechanism that traverses the measuring probe through the flow channel without requiring manual user intervention. The control unit coordinates the movement and triggering of measurements, enabling the system to serve itself and eliminate human error in the measurement process.
Solution Approach 2:
The patent replaces the manual mechanical operation with an automated moving mechanism driven by a motor or actuator. This mechanical substitution eliminates the need for manual traversal while maintaining precise positioning capabilities through automated control of the moving mechanism.
2Extent of automation
If automated moving mechanism is introduced, then measurement automation is improved, but device complexity increases
Solution Approach 1:
The moving mechanism serves multiple functions: it positions the measuring probe at different locations in the flow channel, triggers measurements at predetermined positions, and enables comprehensive spatial mapping of measured variables. This multi-functionality reduces the need for separate components for each task.
Solution Approach 2:
The system uses distance sensors to provide feedback on the position of the measuring probe relative to the flow channel boundaries. This feedback enables the control unit to automatically determine when predetermined positions are reached and trigger measurements accordingly, creating a closed-loop control system.
3Measurement precision
If distance sensor is added to determine position, then location accuracy is improved, but device complexity increases
Solution Approach 1:
The distance sensor serves multiple purposes: it determines the position of the measuring probe, triggers measurements at predetermined positions, and provides data for creating measured variable profiles. This multi-functionality justifies the addition of the sensor by eliminating the need for multiple separate components.
Solution Approach 2:
The distance sensor acts as an intermediary between the automated moving mechanism and the control unit. It provides positional information that enables the control unit to make automated decisions about when to trigger measurements, serving as a mediator that translates physical position into control signals.
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
Enables accurate, automated measurement of location-dependent variables, reducing human error and enhancing the precision of flow rate and volume flow measurements in channels.
Implementation Method 1
at least one distance sensor (7, 8, 9) is arranged on the distal end (3)
Data Source
AI summary
In flow probes (11) including measuring sensors (2) on a distal end (3) of a shaft (4), it is also provided to configure at least one distance sensor (7, 8, 9) and an acceleration sensor (16) on this distal end (3), in order to enable an automatic distance measurement and/or determination of the position and/or the orientation of the measuring sensor (2) within a measuring range (6), and thus the recording of spatially resolved measured values.