Vibration Sensor Symmetrical Power Source Layout
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Solution Overview
Problem
Existing vibration detection devices face challenges in achieving linear measurement of mechanical vibrations due to interference from power sources, which are large and heavy, affecting the natural oscillation behavior and leading to non-linear measurement results.
Innovation Solution
The device features a symmetrical arrangement of current sources around the vibration detection element, with the power sources positioned at the same or comparable height, and a damping mechanism to minimize interference, ensuring direct and undisturbed vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power sources are positioned directly above the vibration detection element to provide independent power supply, then the device can operate autonomously, but the large mass and size of power sources negatively impact the device's natural vibration behavior and measurement linearity
Solution Approach 1:
The patent applies asymmetry by positioning power sources offset from the central vibration detection element rather than symmetrically around it. This asymmetric arrangement allows the detection element to remain at the center of mass, minimizing its participation in housing vibration modes while still providing adequate power supply to all device components.
2Measurement precision
If power sources are arranged symmetrically around the vibration detection element, then the device's natural vibration behavior is improved, but the device size and complexity increase
Solution Approach 1:
The patent extracts the power sources from the central region and positions them in the periphery of the housing, separated from the vibration detection element. This extraction reduces the complexity of the central structure and allows the detection element to operate with minimal interference from power source mass and vibration.
3Measurement precision
If the vibration detection element is positioned close to the object being measured for direct vibration transmission, then measurement sensitivity is improved, but the device's overall mass and size increase due to power source requirements
Solution Approach 1:
The patent transitions from a vertical stacking arrangement (detection element above power sources) to a horizontal planar arrangement where power sources are distributed around the periphery. This dimensional change allows the detection element to maintain close proximity to the measurement object while power sources are positioned to minimize their impact on the device's center of mass and vibration characteristics.
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
This configuration improves the vibration behavior by reducing tilting oscillations and natural modes, enhancing frequency linearity and maintaining a small, lightweight design while providing an independent power supply.
Implementation Method 1
At least one damping element is provided which is in contact with the housing and/or with the vibration detection element
Data Source
Figure 1~2
Figure 3~6
AI summary
A device (1, 13, 16, 19, 24) for detecting mechanical vibrations of objects to be measured (12), which can be attached to objects to be measured (12) for this purpose, has a housing (2), at least one vibration detection element (3, 15, 18, 21) and at least two current sources (4, 14, 17, 20, 25). The vibration detection element (3, 15, 18, 21) and the current sources (4, 14, 17, 20, 25) are arranged within the housing (2), and the current sources (4, 14, 17, 20, 25) are arranged along at least one circle (22, 23) around the vibration detection element (3, 15, 18, 21), with equal angular distances between adjacent current sources (4, 14, 17, 20, 25) on the same circle (22, 23). This symmetrical design improves the vibration behavior of the device (1, 13, 16, 19, 24), which has a positive effect on the linear measurement behavior of the device (1, 13, 16, 19, 24).