Electromagnets Without Armatures TRIZ Cases

Helically nested solenoids generate and detect complex 3D electromagnetic fields for non-contact tissue stimulation and EMF measurement.

Magnetic sensors and generators actively cancel time-varying vehicle cabin fields, reducing passenger exposure without heavy shielding.

Adjustable winged TMS coils conform to head curvature to maximize tangential field components for deeper stimulation with fewer side effects.

Magnetic flux confinement enables selective micro-LED transfer across height variations while preserving pattern fidelity in high-volume display fabrication.

Voids in a metal coil layer on a magnetic base improve heat dissipation while preserving conductivity for transformers and wireless transmitters.

Fluid-cooled flat-wire coils enable thermally stable mid-air kinesthetic haptics with high update rates and multi-point force feedback.

Magnets on a protective cage let the drone attach to ferrous assets, saving battery power and improving wind-stable inspection quality.

A magnet-driven cantilever switch generates controlled pulses without semiconductors, improving wireless sensor reliability in harsh, enclosed environments.

Nested Halbach arrays and a solenoid create a homogeneous, adjustable 3D magnetic field to align fillers during composite printing.

A split housing and iron core let coils be wound first, then assembled, improving fit for restricted spaces such as electromagnetic clutches.

Localized magnetic programming lets one origami-inspired sheet refold into different 3D forms on demand, improving versatility and reuse.