Mass Flow Sensor Stabilizing Element Prevents Bending
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Solution Overview
Problem
Mass flow measuring or controlling devices face challenges in achieving high control accuracy, especially at low flow rates, due to pressure dependence and potential bending of the sensor support part, leading to degradation of control accuracy.
Innovation Solution
A mass flow measuring or controlling device design that includes a stabilizing element to prevent bending of the sensor support part, ensuring constant fluidic contact with the measuring channel section, even under compressive loads, using a cuboidal sensor support part and an arched stabilizing element that presses the sensor support part towards the base body, enhancing stability and measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the sensor support part is mounted outside the flow channel to avoid influencing flow, then the flow channel is not unfavorably influenced, but the sensor support part becomes less resistant to compressive loading and may bend
Solution Approach 1:
The patent introduces a stabilizing element as an intermediary component between the sensor support part and the flow channel. This stabilizing element reinforces the sensor support part specifically in regions exposed to compressive loading, allowing the mounting to remain outside the flow channel while preventing bending under pressure. The stabilizing element acts as a mediator that provides structural support without interfering with the flow channel's function.
2Strength
If the sensor support part bends under compressive load, then the spatial arrangement between sensor element and measuring channel section changes, but this degrades control accuracy
Solution Approach 1:
The stabilizing element is designed to preemptively counteract compressive loads before they can cause bending of the sensor support part. By providing preliminary structural reinforcement in the form of stabilizing elements (such as ribs or strengthening structures), the patent ensures that the sensor support part maintains its spatial arrangement and prevents degradation of control accuracy before the bending can occur.
3Reliability
If fastening means are arranged outside the flow channel for durability, then contamination is avoided, but the sensor support part region is exposed to higher compressive loading
Solution Approach 1:
The patent applies local quality by providing stabilizing elements specifically in the regions of the sensor support part that are exposed to compressive loading from external fastening means. Rather than uniformly strengthening the entire sensor support part, the stabilizing structures are localized to the critical areas near the mounting regions, providing enhanced compressive load resistance exactly where needed while maintaining durability through external fastening.
Data Source
AI summary
A mass flow measuring or controlling device having a base body, a flow channel and a sensor module which comprises a sensor element and which can be coupled to an electronic unit, the flow channel having a measuring channel section which is in fluidic contact with the sensor element is characterized in that the sensor module comprises a sensor support part and a stabilizing element for stabilizing the sensor support part in the region of the measuring channel section.