Rotating Antenna Array for Fill Level Topology Determination
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Solution Overview
Problem
Existing fill level measuring devices are complex to manufacture and operate, particularly when determining the topology of a filling material surface, as they require intricate mechanical constructions or extensive electronic components for beam direction changes, leading to high production costs and mechanical wear.
Innovation Solution
A fill level measuring device with a rotating antenna unit featuring a one-dimensional array of radiating elements and an elongated focusing arrangement, combined with digital beam shaping and a dielectric cylindrical lens or parabolic trough, allows for efficient focusing and beam direction control, reducing mechanical complexity and electronic requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional beam direction control methods are used, then measurement accuracy is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces complex mechanical beam direction control systems with a rotating antenna unit that has a fixed beam direction. The antenna unit rotates to scan different areas, eliminating the need for complex mechanical constructions while maintaining measurement accuracy for topology determination.
Solution Approach 2:
The patent introduces dynamic rotation of the antenna unit to achieve area scanning. Instead of using complex static mechanical systems for beam direction control, the system uses simple rotation movement of the entire antenna unit, reducing mechanical complexity while enabling comprehensive surface measurement.
2Adaptability or versatility
If extensive electronic components are used for beam direction changes, then measurement capability is improved, but production cost and electronic requirements increase
Solution Approach 1:
The patent replaces extensive electronic beam direction control components with a simple rotating antenna unit. The mechanical rotation provides adaptability for scanning different areas without requiring complex electronic steering components, thereby reducing production cost and electronic requirements.
3Productivity
If fast measurement cycles are achieved through complex mechanisms, then productivity is improved, but mechanical stress and wear increase
Solution Approach 1:
The patent replaces complex mechanical mechanisms with a simple rotating antenna unit. The simplified mechanical structure reduces stress and wear during rotation, improving reliability and durability while maintaining fast measurement cycle capability through efficient rotation and scanning.
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 enables fast measurement cycles with low mechanical stress and simplified electronics, achieving accurate topology determination of filling material surfaces while reducing production costs and mechanical wear.
Implementation Method 1
Level gauges or other measuring devices used in object monitoring emit electromagnetic waves or ultrasonic waves that are at least partially reflected by the surface of the contents or the object in question. The partially reflected signal can then be received by the measuring device's antenna unit and evaluated by the associated electronics.
Implementation Method 2
According to one embodiment of the invention, the focusing arrangement comprises a dielectric cylindrical lens whose longitudinal axis is aligned parallel to the longitudinal direction of the antenna unit.
Implementation Method 3
According to a further embodiment of the invention, the focusing arrangement comprises a parabolic trough as the main reflector and a counter-reflector spaced apart from the parabolic trough, wherein the array for emitting the measurement signal in the direction of the counter-reflector is arranged on or near the surface of the parabolic trough.
Data Source
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AI summary
An antenna apparatus for a fill level measurement device is provided, including an antenna configured to emit a measurement signal towards a filling material surface and to receive a reflected measurement signal reflected by the filling material surface; a motor configured to rotate the antenna about an axis of rotation; and an elongate focussing arrangement configured to focus the emitted measurement signal and/or the reflected measurement signal, wherein the antenna includes an array of a plurality of radiator elements configured to emit the measurement signal and/or to receive the reflected measurement signal.