Portable Electromagnetic Sensor Calibration Apparatus
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Solution Overview
Problem
Existing electromagnetic sensor calibration tools are cumbersome, difficult to position, and costly, often made with fragile components, which hinders accurate and efficient calibration of vehicle sensors.
Innovation Solution
A portable electromagnetic sensor calibration apparatus featuring a primary alignment structure with a reflective-surface plate, a tracking-alignment reference structure, and verticality and linear-distance instruments, allowing for precise adjustment and compact design, using height-adjustable feet, angle-adjustable joints, and a quick-adjustment pivot mechanism for easy alignment and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If existing calibration tools are used, then calibration function is provided, but the apparatus is large, immobile, and difficult to position
Solution Approach 1:
The calibration apparatus is divided into separate modular components including a calibration target, support structure, and alignment tools that can be independently handled and positioned. This segmentation allows the system to be transported in compact parts and assembled at the calibration location, resolving the contradiction between compactness and positioning ease.
Solution Approach 2:
The support structure incorporates adjustable and movable elements that allow the calibration target to be dynamically repositioned and reoriented during the calibration process. This dynamic capability enables easy positioning despite the compact design, as the apparatus can adapt its configuration to different calibration requirements.
2Ease of operation
If existing calibration tools are used, then calibration function is provided, but the apparatus is difficult to adjust during calibration
Solution Approach 1:
The apparatus incorporates movable and adjustable components including the support structure that can be repositioned, and the calibration target that can be reoriented during calibration. This dynamic design enables easy adjustment without requiring complex fixed mechanisms, resolving the contradiction between adjustment ease and structural complexity.
3Reliability
If existing calibration tools are used, then calibration function is provided, but the components are fragile
Solution Approach 1:
The calibration target uses a reflective surface with specific optical properties that can be implemented using durable materials rather than fragile precision optics. By changing the material parameters and using robust construction methods, the system achieves reliable calibration functionality without requiring expensive, fragile components.
4Ease of manufacture
If existing calibration tools are used, then calibration function is provided, but the apparatus is costly
Solution Approach 1:
The calibration target creates a known reflective pattern that serves as a reference standard for calibration. This reference pattern can be replicated and distributed without requiring expensive proprietary components, enabling accurate calibration at lower cost by using accessible materials and standardized designs.
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 apparatus enables accurate and efficient calibration of electromagnetic sensors, ensuring proper alignment and stability, even on uneven surfaces, while being more compact and cost-effective, thus enhancing sensor accuracy and ease of use.
Implementation Method 1
a primary alignment structure having a reflective-surface plate operable to reflect electromagnetic waves emitted by the electromagnetic sensor
Data Source
AI summary
An apparatus, system, and method for calibrating an electromagnetic sensor of a vehicle. Calibration is performed by positioning a calibration apparatus at known positions relative to the electromagnetic sensor of the vehicle, and taking measurements with respect to each known position. The calibration apparatus disclosed herein further comprises adjustable components.