Using Subsonic/Sonic/Ultrasonic Vibration Means TRIZ Cases

Alternating low and high ultrasonic frequencies helps distinguish curbs from vehicles by echo patterns, improving parking-space judgment.

A broadband acoustic metamaterial screen lets covered vehicle ultrasonic sensors pass echoes while reducing structural vibration noise.

A broadband acoustic metamaterial aperture lets a concealed vehicle ultrasonic sensor boost echo amplitude and signal-to-noise ratio.

Continuous position and ultrasonic thickness feedback adjusts paver screed height in real time to meet road layer targets and cut material waste.

A pushing member and offset sensor automate supporting beam deflection checks in substrate carriers, avoiding manual calibration and delays.

Combining tire-road sound with driving data improves road surface recognition in steady driving while avoiding added sensor cost.

A wheel-arch microphone isolates high-frequency splash energy beyond 4 kHz to estimate thin road water films with minimal vibration sensitivity.

Curve-fitted ultrasonic sensor characteristics let towing control estimate hitch angle when only one sensor return is available at high articulation.

A purge-gas quartz crystal monitor protects the sensor from process chemistries while improving film growth rate accuracy and maintenance intervals.

Feature extraction from tire vibration signals enables road surface detection and tire wear monitoring with lower power and memory use.

Dual-angle ultrasonic reflections are compared to detect ditches, potholes, and downward steps where clear driving paths are absent.

High-frequency wheel arch microphone signals above 4 kHz estimate thin road water films while avoiding low-frequency vehicle vibration noise.

Ring-shaped truncated cone sectors return stronger ultrasonic echoes in air springs across kinematic positions while also resisting bump-stop damage.

Sensors match water-surface depth readings to pool-bottom flat areas, enabling precise dives and cleaning without complex positioning.

Distance sensing from the water surface lets a pool cleaner match bottom depth, target flat areas, and avoid complex positioning.

Automated laser and optical inspection replaces subjective visual thread checks with repeatable pipe connection measurement and compliance reporting.

Automated laser and optical sensing replaces subjective visual pipe thread checks with repeatable defect detection and standards validation.

A second sensor links front profile data to actual milling depth, correcting inclination errors for more accurate worked volume calculation.

A second distance sensor links pre-cut surface profiles to actual milling depth, improving processed-volume accuracy on slopes and variable cuts.

Integrated sensors in a covering body capture amputation stump contours during manual shaping, reducing fitting time and scanning equipment.

Aligned shield and holder openings clear the ultrasonic path, cutting multiple reflections and noise to improve detection accuracy.

A coolant passage around the sensor body keeps EMAT sensors within temperature limits for in-service inspection of hot process equipment.

Surface profile scanning and algorithmic analysis measure refractory thickness in hot vessels, exposing gaps and bending for safer maintenance planning.

Pulse RADAR measures track-to-sensor distance so controllers can detect low tension and help reduce undercarriage wear.

Rather than choosing the strongest echo, the device matches reflected-wave candidates to identify the back surface and improve thickness accuracy.

Magnetic detectors struggle with composite pipelines; a watertight spherical shell and two-axis accelerometer calculate curvature from non-magnetic signals.

Unknown refractive index and device errors are corrected by comparing inline THz readings with cooled profile reference measurements.

Movable lens groups and reflecting members provide optical zoom and focus in a compact structure without multiple camera modules.

Multiple sensor heads share a modular carrier, while dual control loops compensate for chassis and screed disturbances.

Multiple ultrasonic sensor heads are integrated on a carrier, while dual control loops compensate for screed and tow-point disturbances.

Linnik interferometry enables fast 3D inspection of bonded samples for sub-micron void detection.

Six polarization-maintaining fibers exceed the light source's coherence length to prevent mode correlation and stabilize interference.

Spring-biased ultrasonic probes map cooling plate wear through the full coolant channel.

Images and microphone measurements build a room model that renders remote voices with realistic location and reverberation.

Dual-frequency cantilever excitation resolves ill-defined contact resonance by separating amplitude and phase signals, ensuring reliable stiffness measurements.

A platform with weight and ultrasonic sensors measures hand luggage dimensions for airport check-out.

A tire side device alternates between active and sleep states to conserve battery energy while maintaining road surface data transmission.

Dual angled ultrasonic sensors calculate real-time spray boom height relative to crop canopy, resolving measurement errors caused by boom tilt.

A smart shoe integrates distance sensors and control units to continuously measure ground proximity for terrain assessment.

Acoustic sensors detect reflected signals from terrain ahead of a vehicle to identify surface types using processor analysis.

RANSAC fitting and moving window termination detect occluded edges in noisy point clouds, reducing manual segmentation time.

Azimuth-dependent amplitude correction enables a single 1D ultrasonic sensor to classify object height without additional hardware or complex data fusion.

A light section sensor mounted on a swivel device moves around a long profile to capture cross-sectional data from multiple angles.