Rotatable Modular Field Housing for Flexible Level Sensor Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Radar-based fill-level measuring devices face limitations in flexibility and compactness due to the requirement for spatial separation of active and passive components, which restricts the rotation of the upper housing part and alignment of displays or cable outlets, especially for explosion protection and high-pressure applications.
Innovation Solution
A modular field device design featuring a rotatable housing with a transmission mechanism that allows the second electronics module to rotate relative to the housing axis, decoupling the electrical connection and enabling flexible installation without hindering the rotation of the housing parts, and incorporating a high-frequency module within the measuring device neck for compactness and explosion protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the upper housing part is made rotatable for flexible installation, then the adaptability and ease of operation are improved, but the electrical connection between modules is limited or prevented
Solution Approach 1:
The device is divided into modular components: a first housing part containing the interface module, a second housing part (measuring device neck) containing the high-frequency module, and a rotatable connection means with integrated transmission means. This segmentation allows each module to be independently positioned and connected, enabling rotation without compromising electrical connectivity.
Solution Approach 2:
The transmission means is merged with the rotatable connection means, integrating the mechanical rotation function and the electrical signal transmission function into a single component. This eliminates the need for separate rotational joints and electrical connections, resolving the contradiction between rotatability and electrical connection integrity.
2Reliability
If spatial separation between active modules and passive antenna is implemented for explosion protection, then the safety is improved, but the device compactness deteriorates
Solution Approach 1:
The high-frequency module is nested within the measuring device neck (second housing part), which itself is integrated into the overall compact housing structure. This nested arrangement maintains the required spatial separation between the explosive-proof antenna area and the electronically active modules while minimizing the overall device volume through efficient space utilization.
3Volume of moving object
If the high-frequency module is transferred to the measuring device neck for compactness, then the device compactness is improved, but the electrical connection between modules is restricted
Solution Approach 1:
The transmission means is combined with the rotatable connection means, creating an integrated mechanism that simultaneously provides electrical connectivity and rotational movement. This integration simplifies the assembly process, as the electrical connection is automatically established during the rotation and tightening of the connection means, eliminating the need for separate connection steps.
Data Source
AI summary
A modular field device includes a housing having a first housing part for a first electronics module and a separate, second housing part for a second electronics module. The housing parts are connected and the interiors thereof are interconnected, and the housing parts are rotatable relative to one another along a common housing axis. The field device comprises, in the housing interior, a transmission means which mechanically couples the second electronics module in the interior of the second housing part to the first housing part so that a rotation of the first housing part relative to the second housing part about the housing axis rotates the second electronics module. The electrical connection between the modules does not thus restrict the rotatability of the housing parts relative to one another.