Device and Method for Applying a Magnetic Field to a Sample

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention relates to a device and method for subjecting a sample to a magnetic field using a body with permanent magnets arranged in a closed three-dimensional structure (such as a sphere, ellipsoid, cylinder, or cube). The key innovation is that it allows the device to be easily and safely opened and closed at specifically designed sections or access points where magnetic forces are intentionally minimized (near zero), enabling samples to be inserted or removed with much less effort compared to existing solutions. The device can generate strong, homogeneous magnetic fields, crucial for high-quality magnetic resonance measurements like NMR or ESR, and is designed to be lightweight and suitable for mobile applications.

Use CasesContent extracted from patent full text and abstract with AI.

• Nuclear Magnetic Resonance (NMR) spectroscopy for analyzing chemical and biological samples.
• Electron Spin Resonance (ESR) spectroscopy for detecting defects or specific structures within materials.
• Mobile or field-deployable magnetic resonance systems for on-site analysis (e.g., in healthcare, agriculture, or material science).
• Testing and quality control in industrial settings, where rapid, easy sample loading/unloading is required.
• Research laboratories needing customizable, high-homogeneity magnetic field environments.
• Educational demonstration devices in physics or engineering curricula.

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly reduces the effort and force required to open and close the device for sample insertion/removal (up to 100-fold reduction).
• Maintains mechanical integrity and safety due to reduced magnetic force at the opening plane, lowering the risk of accidents.
• Preserves strong and homogeneous magnetic fields inside the device since there are no permanent large openings, unlike conventional designs.
• Lightweight design enables portability and suitability for mobile applications.
• Customizable for various three-dimensional shapes and magnet configurations (dipole, quadrupole, etc.) and sample sizes.
• Supports techniques like magic angle spinning, enhancing spectral resolution in NMR/ESR analyses.
• Improves operational convenience and work safety, especially in environments where frequent sample changes are necessary.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The device has a body (1) including four permanent magnets (3) and a closed three-dimensional structure with a circular, ellipsoid or a polygonal cross-section, where magnetic field is formed in an inner space (2). A sample receiving device includes a resealable sectional plane and a resealable entrance at which magnetization forces are raised or approximately equal to zero. A sum of the magnetization forces between pairs of dipoles is calculated based on force between the pairs of dipoles, a normal direction of the plane and an arc length of a section line (4) in the plane or the entrance. An independent claim is also included for a method for applying magnetic field to a sample.