Tunable Shock Sensor Using Parallel Dipole Line Trap
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Solution Overview
Problem
Conventional shock sensors are limited by being non-tunable and one-time use, as they detect a preset threshold of shock, making them unsuitable for items sensitive to different levels of impact and requiring replacement after activation.
Innovation Solution
A tunable and resettable shock sensor using a magnetic parallel dipole line (PDL) trap system, where a diamagnetic rod levitates between diametric magnets, and the gap between the magnets is adjusted to vary the shock threshold, with contact pads below to detect shocks and a blockchain ledger to record events, enabling sensitivity adjustment and reset functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional shock sensors use a preset threshold design, then the sensor structure is simple, but the sensor cannot be tuned to different sensitivity levels
Solution Approach 1:
The patent applies parameter changes by adjusting the gap distance between the diametric magnets in the PDL trap system. By varying this geometric parameter, the magnetic field strength and trap depth are modified, enabling continuous tuning of the shock detection threshold from 5g to 50g without changing the sensor structure
Solution Approach 2:
The patent implements universality through the PDL trap system that can detect a wide range of shock levels (5g-50g) by adjusting the magnet gap. A single sensor design serves multiple sensitivity requirements, replacing the need for multiple specialized sensors with fixed thresholds
2Adaptability or versatility
If conventional shock sensors are designed as one-time use devices, then the sensor structure is simple, but the sensor cannot be reset after activation
Solution Approach 1:
The patent applies dynamics by making the magnetic trap depth adjustable and resettable. The system transitions from a static one-time use design to a dynamic system where the magnet gap can be modified to reset the trap depth, allowing the sensor to be reused indefinitely
Solution Approach 2:
The patent implements discarding and recovering by enabling the recovery of the diamagnetic rod back to its levitated state after shock detection. The reset mechanism recovers the sensor to its initial state, allowing repeated use instead of discarding the sensor after single activation
3Measurement precision
If the magnet gap is increased to reduce trap depth, then lower shock thresholds are detected, but the levitation stability decreases
Solution Approach 1:
The patent applies dynamics by enabling continuous adjustment of the magnet gap distance. This dynamic control allows optimization of the balance between trap depth (for sensitivity) and levitation stability (for reliability), adapting to different measurement requirements
Solution Approach 2:
The patent implements parameter changes by systematically varying the gap distance between diametric magnets to achieve different trap depths corresponding to specific shock thresholds (5g, 10g, 25g, 50g), with each parameter setting optimized for both detection precision and stability
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 PDL trap system allows for adjustable sensitivity and resetability, providing a versatile and tamper-proof shock monitoring solution that can detect various shock levels and reset after activation, enhancing the monitoring of fragile items during transport.
Implementation Method 1
a diamagnetic rod levitating in between the diametric magnets
Implementation Method 2
a PDL trap having a pair of diametric magnets separated from one another by a gap gM
Implementation Method 3
magnetic parallel dipole line (PDL) trap system
Data Source
AI summary
A tunable and resettable shock sensor using a parallel dipole line (PDL) trap system is provided. In one aspect, a shock sensor includes: a PDL trap having a pair of diametric magnets separated from one another by a gap gM, and a diamagnetic rod levitating in between the diametric magnets; and contact pads below the PDL trap, wherein the contact pads are separated from one another by a space that is less than a length l of the diamagnetic rod. A shock monitoring system is also provided that includes a network of the shock sensors, as is a method for shock monitoring using the shock sensors.