Material Analysis Using Sonic/Ultrasonic/Infrasonic Waves TRIZ Cases

A light transmission tip with a surrounding light absorber enables uniform ultrasonic emission from metal instruments for precise tip positioning.

Ultra-thin plated conductive layers replace thicker FPC or foil lead-outs to cut acoustic impedance mismatch in high-frequency ultrasonic probes.

Piezoelectric biomarker sensing enables COVID-19 detection in blood, saliva, or nasal fluid within 10 minutes while supporting scalable testing.

Multiple active chips and a signal path selector let one electrode array handle different frequency bands with lower noise and smaller area.

A welded adapter with potting compound enables stable ultrasonic coupling on thin walls while keeping the converter replaceable.

Interface echo measurements at multiple probe angles calibrate pulse-echo ultrasound alignment without backwall data or manual couplant setup.

Photothermal excitation and contactless vibration detection improve frequency-dependent rheology measurement while limiting mechanical interference.

Oscillating laser wavelength and power in a sealed gas cell enables phase-based photoacoustic feedback for precise low-level measurement.

A stacked transmit-receive array enables concurrent ultrasound energy delivery and imaging, avoiding pulse-echo delays and noise.

Reused transducer contributions let a virtual microphone track moving focus points and regulate phased-array acoustic pressure with less computation.

Directly matching measured and simulated ultrasound A-mode signals avoids 3D reconstruction, improving registration accuracy with lower computation.

An ablation layer turns one laser pulse into a tensile-wave adhesion test, enabling direct void-zone observation and clearer failure thresholds.

Indirect sonication through a bath improves sample disruption while limiting heat and environmental sensitivity in point-of-care diagnostics.

Receiver stacks flanking a light guide improve wearable photoacoustic sensing while acoustic matching layers help suppress EMI and artifacts.

Elastic springs let the ultrasonic probe yield on contact, limiting excessive force while maintaining stable flaw inspection accuracy.

A reflective measurement cell with a bottom-port microphone enables compact gas sensing without sacrificing infrared absorption accuracy.

A polyurethane cushion biases magnet bars against the pipe wall, improving MFL defect detection while reducing drag in bends.

A layered primary path with a lower secondary drainage path keeps droplets out of the ultrasonic path for accurate gas flow and concentration measurement.

Built-in test signals and channel selection let an ultrasound system detect probe defects by capacitance without separate inspection equipment.

LFM-based chamber validation turns harmful reflections into location data, pinpointing reflective elements and checking reflectivity thresholds.