Integrated Motion Transducer with On-Board Signal Processing
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Solution Overview
Problem
Existing motion transducer sensors, particularly coil-magnet types, face challenges in effectively sensing motion across various media and applications, such as seismic and structural measurements, due to limitations in design and signal processing capabilities.
Innovation Solution
A motion transducer apparatus featuring a rotating coil-magnet assembly within a cylindrical steel case with integrated electronic circuits, including amplifier, filter, and analog-to-digital converter circuits, which allows for precise sensing and processing of motion signals through relative movement between the coil form and magnet within a magnetic field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If coil-magnet transducer is used for motion sensing, then motion detection capability is provided, but signal processing precision and adaptability are limited
Solution Approach 1:
The patent combines the coil-magnet transducer with integrated electronic circuits including amplifier, filter, and analog-to-digital converter circuits within a single housing. This merging of the sensing element and signal processing electronics into one unified device enables precise motion sensing with advanced signal processing capabilities, resolving the contradiction between measurement precision and device complexity by making the complex processing capabilities internally integrated rather than externally added.
2Adaptability or versatility
If simple transducer design is used, then manufacturing ease is improved, but adaptability to diverse applications is reduced
Solution Approach 1:
The patent creates a universal motion transducer device that can be applied to diverse applications including seismic measurements, structural monitoring, and vibration analysis. The integrated design with configurable electronic circuits allows the same physical device to adapt to different measurement requirements through software or circuit configuration changes rather than requiring different hardware designs, thereby achieving multi-functionality without proportionally increasing manufacturing complexity.
3Loss of information
If analog signal output is used, then device simplicity is maintained, but information processing capability is limited
Solution Approach 1:
The patent replaces the traditional purely mechanical/coil-magnet analog signal generation system with an integrated system that includes analog-to-digital converter circuits. This substitution converts the output from analog to digital format, enabling enhanced information processing capabilities, data storage, and analysis while reducing signal information loss. The digital conversion is achieved through integrated electronic circuits that are part of the unified transducer device, managing the complexity through systematic integration.
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 solution enables accurate and reliable sensing of motion, converting analog signals to digital for processing, thereby providing enhanced information on media movement, adaptable for diverse applications with improved signal conditioning and processing capabilities.
Implementation Method 1
The coil form is coupled to the magnet and inner top end plate and bottom end plate by a pair of springs to allow relative movement of the coil form and magnet. The coil form and magnet are forming at least a portion of a coil-magnet assembly that is disposed immediately within a cylindrical steel outer case.
Data Source
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AI summary
A motion sensing transducer is disclosed that includes a case having an inner surface, a first cap that closes the case at a first end and a second cap that closes the case at a second end. The case inner surface, first cap and second cap define a space within the case. The apparatus further includes at least one inner plate member separating the space into at a first compartment and a second compartment within the case, a coil-magnet assembly that produces a signal when subjected to motion, the coil-magnet assembly disposed immediately within the case and in the first compartment, and an electronic circuit disposed within the second compartment that modifies the signal.