Wall Detection Sensor Layout to Reduce Multimeter Interference
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Solution Overview
Problem
The interference between large-volume metallic components and parts of a multimeter detection part and threaded connections in wall detection devices leads to reduced detection accuracy and false readings.
Innovation Solution
A detection device with a staggered arrangement of the sensing assembly and multimeter assembly, using non-metallic connection structures to mount the sensing assembly to the housing, thereby avoiding interference from metallic components and maintaining accurate detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large-volume metallic components and threaded connections are used in the multimeter detection part, then the structural strength and assembly reliability are improved, but the detection accuracy of the sensing element is reduced due to interference from metallic components
Solution Approach 1:
The device is divided into distinct functional modules: the sensing assembly for wall detection and the multimeter assembly for electrical parameter measurement. These modules are spatially separated and functionally independent, allowing each to operate optimally without interference from the other's metallic components
Solution Approach 2:
The sensing assembly and multimeter assembly are arranged in different spatial dimensions and orientations within the housing. The sensing assembly is mounted on the inner side wall via a non-metallic connection structure, while the multimeter assembly contains its metallic components in a separate region, creating spatial separation that eliminates electromagnetic interference
2Stability of the object's composition
If metallic fasteners are used to fix the mutual positional relationship between components, then the structural stability is improved, but the detection sensitivity is reduced due to interference from metallic fasteners
Solution Approach 1:
A non-metallic connection structure is introduced as an intermediary element between the sensing assembly and the housing. This connection structure, made of non-metallic material, provides mechanical support and positional stability while eliminating the electromagnetic interference that would be caused by metallic fasteners
Solution Approach 2:
The patent replaces the traditional mechanical fastening system (metallic screws or clips) with a non-metallic connection structure. This substitution maintains the mechanical function of securing the sensing assembly while removing the harmful electromagnetic properties of metallic materials
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
The staggered arrangement with non-metallic connection structures improves detection sensitivity and stability by reducing the adverse effects of metallic components, ensuring accurate detection of metal structures and electrical parameters.
Implementation Method 1
the sensing assembly comprising at least one of a metal detection sensing element, a foreign object detection sensing element and an alternating-current voltage signal sensing element
Data Source
AI summary
A detection device includes a housing, a wall detection assembly and a multimeter assembly, wherein the wall detection assembly comprises a sensing assembly and a wall detection processing circuit, the sensing assembly comprising at least one of a metal detection sensing element, a foreign object detection sensing element and an alternating-current voltage signal sensing element; wherein the sensing assembly and the wall detection processing circuit are arranged spaced apart in a first direction the sensing assembly and the multimeter assembly are arranged staggered in a second direction; and the sensing assembly is mounted to an inner side wall of the housing via a connection structure which is a non-metallic material structure. The staggered arrangement of the sensing assembly and the multimeter assembly adopts a staggering with a spatial distance, thereby reducing the adverse effects of large-volume metallic components and parts of a multimeter on the sensing assembly.