Parallel Dipole Line Trap Inclinometer for High-Precision Measurement
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Solution Overview
Problem
Conventional inclinometer systems face challenges in detecting small inclination changes due to liquid-solid interactions, which affect precision.
Innovation Solution
A parallel dipole line (PDL) trap system using levitating diamagnetic objects between dipole line magnets within a transparent tube, allowing non-contact measurement of inclination angles through position sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If liquid level sensing or bubble tiltmeter is used, then the inclinometer can measure inclination angles, but liquid-solid interactions reduce measurement precision
Solution Approach 1:
The patent replaces mechanical/liquid-based sensing systems with a magnetic field-based levitation system. A diamagnetic object levitates in a magnetic field gradient created by electromagnetic coils, eliminating all liquid-solid and mechanical contact interactions. The position of the levitated object indicates inclination angle, providing measurement without the harmful friction and adhesion effects present in liquid-based systems.
Solution Approach 2:
The patent introduces a diamagnetic object as an intermediary between the magnetic field and the measurement system. This object levitates without contact in the magnetic field gradient, serving as a mediator that translates inclination angle changes into measurable position changes while avoiding direct contact between sensing elements and the housing or liquid medium.
2Measurement precision
If contact-based sensing systems are used, then the device structure is simple, but detection sensitivity for very small inclination changes is reduced
Solution Approach 1:
The patent replaces mechanical contact-based sensing with a magnetic field-based detection system. Electromagnetic coils create a magnetic field gradient that levitates a diamagnetic object, and changes in the object's position due to inclination are detected through magnetic field changes or optical means, providing high sensitivity without mechanical friction or contact interference.
Solution Approach 2:
The patent utilizes changes in magnetic field parameters (gradient strength, distribution) to control the levitation and positioning of the diamagnetic object. By adjusting electromagnetic coil currents, the system can maintain stable levitation across different inclination angles while maximizing detection sensitivity through optimal field configuration.
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 high-precision inclination angle measurements without liquid-solid interactions, improving sensitivity and resolution compared to existing technologies.
Implementation Method 1
a diamagnetic object within the transparent tube, wherein the diamagnetic object is levitating in between the dipole line magnets
Data Source
AI summary
Inclinometers with a parallel dipole line (PDL) trap system are provided. In one aspect, an inclinometer includes: a PDL trap having a pair of dipole line magnets, a transparent tube in between the dipole line magnets, and a diamagnetic object within the transparent tube, wherein the diamagnetic object is levitating in between the dipole line magnets; and a sensing system for determining a position z of the diamagnetic object in the PDL trap and for determining an inclination angle θ using the position z of the diamagnetic object in the PDL trap. Techniques to detect the diamagnetic object position using optical, capacitive and manual methods are described. A method for determining an inclination angle θ using the present inclinometers is also provided.