Material Analysis Using Sonic/Ultrasonic/Infrasonic Waves TRIZ Cases

Handheld distance sensor array identifies surface irregularities before ultrasonic testing.

Flexible metal plates support high-Curie-point piezoelectric ceramics to detect structural defects without thermal damage during operation.

Dynamic resolution adjustment reduces transmission bandwidth waste while maintaining adequate image quality across diverse wireless communication terminals.

Single-channel optical fiber apparatus overcomes concentration quenching to measure oil-in-water concentrations up to 100,000 ppm with high accuracy.

Reference indicia on a film overlay align probes to detect internal defects without complex system upgrades.

A compact ultrasonic probe adjusts slew rate via a correcting unit and current mirror to maintain signal fidelity.

A resonance measurement system limits electrical excitation signals to maintain harmonic oscillations.

Phase locking method adjusts laser scanning parameters to maintain resonant state, reducing drift coefficient and expanding operating temperature range.

Switchable coupler reorients dual ultrasound probes for axial and transverse bone assessment modes.

An ultrasonic sensor detects glycol concentration in water mixtures to trigger automated valve closure.

Resiliently flexible seals on a laser inspection light shield constrain radiation, enabling safe human presence during non-destructive testing of large objects.

A waterproof containing body exposes a sensor surface to liquid while converting electrical signals to electromagnetic waves for wireless transmission.

Reactive material converts laser energy into compression waves, enabling portable bondline inspection without large lasers.

Ultrasonic transducers measure sound velocity in organic fill liquid to determine pressure, eliminating zero-point drift from mechanical creep.

Piezoelectric actuators transmit high force without altering structural properties, resolving the contradiction between noncontact testing and low power.

Positioning a single antenna between two reagent container holders eliminates multiple antennas, reducing device size and component count.

Inverted polarity pulses accelerate charge discharge in cMUTs, eliminating sensitivity drift and harmonic distortion caused by DC bias accumulation.

Exterior acoustic sensors transmit signals through container walls to detect internal objects and sediment surfaces.

Pivotable transducer set supporters switch between linear and convex arrays to reduce operator burden during puncture guidance.

Electrospun polymer fibers maintain piezoelectric properties at operating temperatures, overcoming brittleness and low thermal limits of ceramic materials.

A flexible ferromagnetic rail system guides a magnetic trolley across curved aircraft surfaces to carry non-destructive testing sensors.

A photoacoustic gas sensing apparatus uses parallel optical paths to modulate light beams without mechanical components.

A dudou-shaped test block with arc grooves calibrates ultrasonic instruments and probes.

Dual-port MEMS sensors use an elastic element to adjust partial volume by fluid pressure, resolving fixed frequency response limitations.

A thin film flex circuit with conductive traces enclosed in a common dielectric layer interconnects transducer elements.

An elastic member isolates the terminal retainer from the cylindrical case side wall, reducing vibration leakage and improving reverberation characteristics.

A fixed focus transducer array uses symmetrical piezoelectric elements with varying natural frequencies to simultaneously focus ultrasonic signals on a single point.

A directional ultrasonic sensor uses a single transducer with variable thickness membrane to emit sound in multiple directions.

Ultrasonic flow meter determines biogas composition using real gas equation and speed of sound measurements, replacing offline analysis.

Removable photonic circuit allows independent component replacement, resolving the contradiction between miniaturization and ease of repair.

Floating probe holders track contour changes automatically, eliminating manual positioning complexity in aircraft structural inspections.

Compliant assemblies in a multi-sensor NDI probe self-align transducer arrays to scan rounded cap stiffeners, eliminating multiple setups and rescan procedures.

A dual-transducer ultrasonic flow meter applies a logarithmic correction function to compute fluid velocity based on signal propagation time differences.

A detection device sandwiches media between electrostatic capacitance and ultrasonic wave sensors to measure physical properties.

Image processor computes scanner displacement from overlapping scan image features, removing rotational incremental encoders to lower device complexity.

A portable chemical sensor uses frequency-dependent impedance spectroscopy to detect target analytes with high sensitivity.

A detection device uses a hollow cylindrical support housing detectors to monitor goods on a conveyor system.

A multi-part mounting device retains an ultrasonic transducer using a softer plastic part connected to a harder structural component.

Passive pulse width limiting circuit prevents excessive laser emission and reduces static electricity malfunctions in photoacoustic measurement apparatuses.

A layer direction determining method uses infrared energy measurements to differentiate between conductor and non-conductor layers in multilayer electronic components.

Adjusting the resonator aspect ratio to 1.01–10 eliminates quasi-degenerate modes, resolving the trade-off between capture efficiency and measurement accuracy.

Saw-toothed interdigitated comb fingers increase displacement range and linearity, overcoming nonlinear force limitations of parallel plate designs.

Filling air gaps with a wax composite stabilizes frequency characteristics and improves energy transfer uniformity in thermoacoustic imaging.

Switch matrix simulates probe responses to diagnose transducer element defects without physical phantoms.

Segmented waveguide parts on a measuring tube outer wall excite surface acoustic waves for fluid property detection.

A dialysis machine detects patient line blockages using elastic wave reflections measured by a proximal pressure sensor.

Determines ultrasonic transducer impedance and establishes adjusted voltage levels to maintain consistent bonding reliability despite resonance variations.

Exterior ultrasonic transducers measure container volume via acoustic time-of-flight calculations.

A shear horizontal surface acoustic wave biosensor detects viral agents using surface-bound ligands and piezoelectric transduction.

Analyzing a delayed secondary ultrasonic signal identifies gas bubble interference, invalidating distorted travel time data for accurate flow rate calculations.