Material Analysis Using Sonic/Ultrasonic/Infrasonic Waves TRIZ Cases

Periodic acoustic pulses reduce streaming interference to enhance sub-micronic particle focusing.

A utility meter detects air presence and pressure changes in the flow measurement portion to identify physical tampering events.

Segmenting the interrogation path into multiple circumferential paths resolves the contradiction between measurement precision and device complexity.

A suspended microchannel oscillates at resonant frequency to measure particle mechanical properties via acoustic scattering signals.

Replacing mechanical cables with wireless signals prevents seal failures and extends pig service life.

Segmented spring portions and nested holding member clamp bumper between housing and flange, resolving chattering from thickness variations.

Dielectrophoresis aligns nanostructures between electrodes, resolving random placement issues in sensor fabrication.

Segmented measuring units rotate periodically to cover the entire circumference, reducing device weight and energy consumption.

A photoacoustic gas analyzer uses a radiation source with time-varying intensity to excite gas molecules for concentration determination.

Integrating a heating element into the resonator structure compensates frequency drift, improving detection accuracy for substance sensing applications.

Integrating an MCU processor with a MEMS measurement module inside a sealed housing reduces device volume while maintaining signal accuracy.

A non-contact ultrasonic thickness measurement device scans large panels using a jet flow immersion coupling mode.

A photoacoustic imaging method compensates for optical fluence variations across wavelengths to improve chromophore quantification accuracy.

A piezoelectric transducer structure generates directed tension waves through optical absorption and reflection mechanisms.

An integrated adapter connects ultrasonic sensors to circuit boards within a separated housing structure.

A support vector machine extracts multi-dimensional feature vectors from segmented wheel-rail noise signals to identify rail corrugation states.

Acoustic wave sensor detects nucleic acids in impure liquid samples by measuring energy loss changes resulting from target binding.

Subtracting guided wave signals from combined data resolves interference in high water-cut fluids, enabling accurate sound speed determination.

A microfluidic device uses bulk acoustic waves to permeabilize cell membranes for biomolecular cargo delivery.

Merges multiple non-destructive inspection technologies into a single portable unit to eliminate redundant equipment weight and power consumption.

A movable acoustic array detector adjusts its position relative to the subject to maintain high lateral resolution across the imaging field.

A substrate with a through hole uses an exposed electroconductive seed layer to fill the opening via electrolytic plating.

Monolithic integration of a Fabry-Pérot filter with a micro-heater replaces complex mechanical choppers, enabling simultaneous multi-gas analysis.

Rolling elements in the clamping section minimize acoustic coupling and noise transmission while maintaining high strength and durability.

Combining annular longitudinal and linear transverse wave probes enables reliable defect detection in single-sided nuclear reactor welds.

Replacing bulky laser-chopper assemblies with a self-modulating thermal light source reduces device volume while maintaining measurement accuracy.

A photoacoustic detection system uses pulsed lasers and acoustic sensors to measure downhole fluid properties.

A portable ultrasonic diagnostic apparatus uses a compact probe and external display for flexible imaging.

Uncoupled acoustic sensors eliminate mechanical coupling errors and deployment inefficiency while maintaining high resolution.

Multi-angle plane wave transmission via a probe array overcomes low signal-to-noise ratios in semiconductor sub-surface imaging.

A chemical sensor analyzes receptor materials by supplying fluid analytes to induce measurable physical parameter changes.

Vector interpolation of complex-valued I-Q signals prevents directionality errors in C-mode ultrasound imaging, maintaining resolution.

Stable isotopes from a traceable diet embed an indelible signature in animal tissues, resolving falsification risks in seafood supply chains.

Magnetic core-shell particles generate acoustic signals through hysteresis heating, eliminating background interference in multi-well reservoir tracking.

Fixed curved light source and transducer array eliminate manual alignment, enabling real-time 3D photoacoustic imaging with enhanced depth.

A reflective microscope objective maintains consistent optical focusing across ultraviolet to near-infrared wavelengths.

A piezoelectric sensor applies excitation voltage to a calibration electrode to generate mechanical deformation and capture induced voltage for self-testing.