Rotatable Sensor Alignment Assembly for Sloping Container Roofs
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Solution Overview
Problem
Existing sensor mounting technologies struggle with reliable measurement on containers with angled or irregular outer contours, leading to distorted measurement signals and inaccurate readings.
Innovation Solution
A sensor arrangement with a rotatable alignment device comprising a sensor housing having multiple sections that allow the antenna to be oriented vertically downwards or towards the contents, even on sloping vessel roofs, ensuring the measurement signal passes through consistent material thickness without deflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sensor is mounted directly on a sloping or irregular container roof, then the mounting is simple, but the measurement signal becomes distorted and measurement accuracy deteriorates
Solution Approach 1:
The sensor housing is divided into multiple rotatable sections (first section, second section, third section) that can be independently adjusted. This segmentation allows each section to be optimized for different functions: mounting on the sloping roof while independently aligning the antenna for accurate measurement, thereby resolving the contradiction between simple mounting and measurement accuracy.
Solution Approach 2:
The alignment device incorporates rotatable sections with adjustable angles, transforming a static mounting structure into a dynamic one. The first section can rotate to adapt to the roof slope, the second section can rotate to orient the antenna vertically downwards, and the third section provides additional adjustment. This dynamic capability enables the sensor to maintain measurement accuracy on sloping surfaces while keeping the mounting process relatively simple.
2Ease of operation
If the antenna is oriented to measure through the sloping roof, then the mounting is straightforward, but the measurement signal passes through varying material thickness causing distortion
Solution Approach 1:
The second section of the housing is designed to be rotatable relative to the first section, allowing the antenna to be oriented vertically downwards independent of the mounting angle. This dynamic adjustment ensures the measurement signal passes through consistent material thickness (the roof material only, at a consistent angle), eliminating signal distortion while maintaining ease of mounting on sloping surfaces.
Solution Approach 2:
By separating the mounting function (first section attached to roof) from the measurement function (second section with antenna oriented vertically), the invention allows each to be optimized independently. The mounting section adapts to the sloping roof for ease of installation, while the measurement section maintains consistent signal passage for reliability.
3Device complexity
If a fixed sensor housing is used, then the structure is simple, but the sensor cannot be aligned correctly on sloping or irregular container roofs
Solution Approach 1:
The housing is segmented into three rotatable sections, each providing a degree of freedom for alignment. This segmentation enables the sensor to adapt to sloping or irregular container roofs while maintaining a relatively simple overall structure based on standardized housing components connected through rotatable joints.
Solution Approach 2:
The introduction of rotatable sections transforms a fixed, simple housing into a dynamic, adaptable structure. Each section can rotate to accommodate different roof slopes and orientations, providing versatility without requiring a completely complex custom-designed housing for each application scenario.
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 reliable and undisturbed measurement of fill or limit levels in containers with sloping roofs by aligning the antenna correctly, minimizing signal distortion and ensuring accurate measurement results.
Implementation Method 1
The sensor can be a radar sensor and can be configured as a non-contact measuring sensor for emitting and receiving an electromagnetic measurement signal or measuring beam
Data Source
Figure 1a~1b
Figure 2~3
Figure 4a~4b
AI summary
The invention relates to a sensor assembly (10) for measuring the fill level or limit level of a filling material or a bulk material (25) in a container (20) and to the use of a sensor assembly for measuring the fill level or limit level of a filling material or a bulk material in a container. The sensor assembly (10) comprises a sensor with an antenna (200), a sensor housing (100, 100a, 100b, 100c) with an alignment device (101), which has a first section (110, 110a, 110b, 110c) and a second section (120, 120a, 120b, 120c) which is designed to accommodate the antenna. The first section and the second section are designed in such a manner as to be counter-rotatable. The alignment device is designed to modify the emission direction of the measuring signal (30) from the sensor by rotation of the first section and/or of the second section.