Circular Electrode Stud Sensor Omnidirectional Detection
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Solution Overview
Problem
Current stud sensing devices are limited by their requirement for linear and horizontal movement, and precise vertical orientation, which makes them inefficient when used by humans who naturally move in arcs or at angles, especially when trying to locate studs behind walls.
Innovation Solution
The development of stud sensors with substantially circular electrode configurations and interdigitating electrodes that allow for capacitive sensing, enabling accurate stud location detection regardless of the angle or direction of movement, using a combination of processors and audio/visual indicators to report the stud's location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional linear sensor configurations are used, then stud location can be detected, but the device requires precise vertical orientation and linear movement which reduces ease of operation
Solution Approach 1:
The patent applies circular electrode configurations instead of linear arrangements, creating omnidirectional capacitive sensing capability. This circular geometry allows the sensor to detect studs regardless of the device's orientation or movement path, eliminating the need for precise vertical alignment while maintaining detection accuracy.
Solution Approach 2:
The circular electrode design provides universal detection capability in all directions around the sensor perimeter. The sensor can detect studs whether the device is held vertically, at an angle, or moved in arcs, making it adaptable to various user movements and orientations without sacrificing measurement precision.
2Adaptability or versatility
If circular electrode configurations are used, then omnidirectional detection capability is achieved, but device complexity increases
Solution Approach 1:
The circular electrode configuration creates symmetric geometric patterns that simplify the computational analysis of capacitive signals. The radial symmetry of circles allows for more straightforward mathematical modeling compared to irregular shapes, reducing processing complexity while achieving omnidirectional detection.
Solution Approach 2:
The patent uses interdigitating electrode patterns within the circular configuration, where alternating electrodes create asymmetric sensing zones that can be systematically analyzed. This structured asymmetry provides directional information while maintaining overall circular symmetry, enabling versatile detection without excessive complexity.
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 users to accurately detect stud locations without needing to align the device vertically or move it in a perfect linear fashion, improving usability and accuracy by providing omnidirectional detection capabilities.
Implementation Method 1
measuring a change in capacitance from a fixed capacitance of a wall structure
Data Source
AI summary
This disclosure describes a stud sensor configured to locate a stud. The stud sensor includes a housing and a sensor carried by the housing. The sensor includes two or more electrodes. The two or more electrodes are configured to form a substantially circular configuration. The stud sensor further comprises one or more processors carried by the housing. The one or more processors are communicatively coupled with the sensor. The one or more processors are configured by machine-readable instructions to calculate a stud location by measuring a change in capacitance from a fixed capacitance of a wall structure as the stud sensor is moved along a surface of the wall structure; and generate one or more signals to report a result relating to a location of a stud.