Electric/Magnetic Detection TRIZ Cases

Low-frequency vehicle electromagnetic sensing detects field disturbances from hidden metallic objects, improving occluded-object awareness in rain or fog.

Current-based contact detection sets cutter depth on coated wires, improving notch accuracy despite wire deformation, misalignment, and tolerances.

Variable-capacitance contact sensing sets cutter depth on coated electric wires, improving notch accuracy despite tolerance buildup and wire deformation.

Selectable PXM drive signals and resonant admittance circuits boost metal detection sensitivity while reducing harmonics, filtering complexity, and power.

Segmented grounded shield traces and capacitors suppress low-frequency electrostatic coupling, improving inductive position sensing near high-voltage sources.

Injected pilot-wire signals let mining equipment detect three-phase trailing cables and trigger alerts before accidental contact.

Multiple inductive transceivers with distinct field distributions enable one scanner to detect, locate, and image metallic objects.

Vector-based magnetic field sensing distinguishes same-aisle collision risks from offset-aisle non-threats, reducing nuisance alarms in warehouses.

Vector-based magnetic sensing distinguishes same-aisle collision risks from adjacent-aisle traffic, reducing nuisance alarms and improving warehouse safety.

Adjustable shield-electrode frequency and low-pass filtering cut external signal interference and improve hover detection accuracy.

Frequency-hopping shield electrode control helps a proximity detector avoid periodic electrical interference while preserving detection accuracy.

Resistive links across coil winding sections damp higher-order resonances, cut spurious signals, and speed receive demodulation.

Segmented locator displays combine depth correction, signal direction, and utility-type cues to cut user error in buried line detection.

Phase, amplitude, and Lissajous monitoring flags product state changes before false metal rejects raise disposal loss on production lines.

Combining UWB radar for torso motion patterns with lower-body metal screening cuts false alarms and speeds contraband checks in crowds.

Matched transmitting and resonance coils strengthen magnetic signals for deeper, more accurate subsurface imaging in lossy soil and rock.

Vector differences between measured and reference magnetic fields suppress background interference and improve object position estimation.

Magnetic peak sensing during submersible movement estimates buried seabed pipe position and direction where sonar and optics fail.

Pre-tuned resonator channels with MOSFET switching enable rapid frequency changes, stable tuning, and cleaner contaminant detection.

Bandstop filtering separates multi-frequency metal detection signals with less drift sensitivity, improving small-object detection on moving items.

Parallel low- and high-rate LPFs switch by proximity change to improve capacitive sensing precision, SNR, and response in noisy conditions.

Software-based product profiles let one metal detector switch features for different detecting tasks without replacing hardware or buying another unit.

A software-configurable metal detector lets users install tailored feature sets on one hardware platform for changing detection tasks.

A balanced main and smaller receiving coil extends multi-frequency metal detection to small targets and deeper large objects in difficult soils.

Multi-antenna phase, roll angle, and vector checks trigger cable locator logging automatically, improving underground utility mapping accuracy.

Transfer-function correction compensates for variable non-regulated current, improving deep-ground resistivity and chargeability measurements.

Multiple magnetostatic sensors average field signals to distinguish assault rifles from smartphones, reducing spurious alarms in portable screening setups.

Circular electrodes create a radially symmetric sensing field for accurate wall-stud detection during angled or non-linear scanning.

Manual bait-station inspection can miss pest activity; conductive electrodes measure impedance changes for automated detection and wireless reporting.

Absorbent layers detect and contain pipe-joint leaks before liquid reaches electronics.

The detector measures changing frequencies, displays noise spectra, and helps distinguish interference from foreign substance signals.

Current-injected magnetic sensing and point-cloud simulation refine underground structure geolocation maps automatically.

Magnetic sensor data and simulated field values are compared to select consistent points for precise structure geolocation.

A balanced-coil metal detector uses half-bridge duty-factor control to tune coil current without costly tuning components.

A multi-vehicle gunpowder sensing network uses location and crowdsourced map data to verify detections before alerts are sent.

Remote power conversion boosts coil excitation while limiting signal interference.

A metal detection drive circuit shifts two control waveforms relative to each other to adjust the transmitter coil current amplitude and phase.

A local coil digitizes and buffers magnetic resonance signals in internal memory before transfer to a control device.

A multi-channel MRI coil tuning method minimizes total reflected power by measuring the entire system response during simultaneous excitation.

Laser-based Thomson radiation generates narrow-bandwidth photon beams for high-resolution isotopic imaging.

Loop coils identify containers by analyzing damping vibrations, preventing automatic cooking errors when users move cookware.