Piezoelectric/Electrostrictive Transducers TRIZ Cases

By tuning reflector spacing and back-surface angle to wavelength, this case boosts ultrasonic sound pressure through reflected-wave interference.

An intermediate impedance-matching layer helps display panels transmit acoustic waves with less reflection and preserve sound intensity.

A lattice-matched seed layer preserves electrode crystallinity at the through-electrode junction, reducing etching risk and improving reliability.

A shared audio amplifier drives magnetic and piezo vibrators together, covering low and high frequencies without high-voltage piezo electronics.

A curved base creates non-uniform electric fields and bending vibration, boosting ultrasonic signal intensity while keeping drivers separated.

Adjusted photomask opening ratios guide ion implantation to equalize thin-layer stress on element-forming wafers without complex beam control.

A common audio amplifier drives magnetic and piezoelectric vibrators together to deliver compact, efficient sound across low and high frequencies.

Intersecting sideband and carrier waves create a road-only audio spot that warns drivers while limiting reflected noise in nearby areas.

Two piezoelectric vibrators with different natural frequencies widen audio range in a compact speaker using one drive signal.

Predictive gain control analyzes input frequency content to prevent piezo speaker overcurrent, cutting heat and resistor-related losses.

Real-time voltage and current feedback updates filter-model coefficients, improving overcurrent detection despite component tolerances and aging.

Segmented piezoelectric capacitors combine force sensing, large-area touch detection, and haptic feedback in one cover-layer assembly.

Electrical monitoring and transfer functions estimate piezoelectric transducer displacement accurately without bulky optical measurement hardware.

A patterned central-and-rib actuating structure reduces piezoelectric stress sensitivity, stabilizing pMUT resonance and acoustic output.

An arc-link curvature mechanism and forward vibration sound output let the display switch between flat and curved viewing with better immersion.

A bendable display uses a curvature mechanism and panel vibration to match user viewing preference while projecting clearer forward sound.

Undulating piezo disk surfaces and pre-assembly insulation extend arc paths, enabling higher-voltage ultrasonic converters without bolt interference.

A curvature variation mechanism shifts the panel between flat and curved states while directing sound forward to reduce acoustic interference.

A curvature variation mechanism lets the display switch between flat and curved modes while directing sound forward to improve immersion.

A multifunctional piezoelectric capacitor assembly expands touch and force sensing area while also delivering haptic feedback through shared elements.

A processor isolates specific sounds and routes them to directional and nondirectional speakers for targeted playback and immersive surround audio.

Separates specific sounds for directional projection while keeping ambient channels on nondirectional speakers to create immersive local audio zones.

Single-sideband modulation shifts clipped audio distortion outside the signal band, enabling filtering and preserving ultrasonic audio quality.

By moving the amplifier and vibrator into a protective case, audible sound is produced while freeing internal phone space and lowering cost.

Ultrasonic square-wave monitoring checks piezo alarm sounders for impedance faults while keeping acoustic output low enough for silent use.

Surface-treated titania and silica in a silicone resin improve impedance matching, cut acoustic attenuation, and protect probe elements.

A resin-filler acoustic matching layer improves ultrasonic transmission while limiting moisture absorption and density variation.

A stepped case creates clearance at the movable diaphragm edge to suppress air convection and stabilize acoustic pressure without fine slits.

A phased ultrasonic array uses non-resonant transmission and resonant reception to improve phase control, reception voltage, and obstacle distance resolution.

Pre-cut textured ceramic sheets are stacked on a mold and hot isostatically pressed to preserve radial grain alignment for omnidirectional acoustic response.

A piezoelectric transducer senses blower motor vibration to trigger HVAC accessories without high-voltage wiring, duct cutting, or proprietary connectors.

Buffer layers with tuned pores and propagation coefficients direct low and high frequencies forward for more balanced display-panel audio.

Retroreflective optics and coordinated sound output align audio with floating image positions to improve perceived realism.

Controlling piezoelectric particle circularity in a polymer composite film improves electromechanical conversion while preserving flexibility.

Charge recycling through a reservoir capacitor cuts piezo driver power use while reducing hysteresis, creep, and audio distortion.

A simplified piezoelectric signal connection structure improves sound pressure and quality while keeping the vibration member thin and reliable.

A hinge-cover through-hole redirects sound during folding to preserve stereo audio, while seals block leakage and contaminants when unfolded.

A cavity-waveguide plate and flexible resin film suppress near-resonance transmission, enabling phased-array directivity control below resonance.

An integrated diaphragm and housing form a precise MEMS acoustic resonance cavity that amplifies ultrasound for more accurate distance measurement.

Buffer layers with tuned pores and a vibrating element route low and high frequencies to the display front for more balanced stereo sound.

Thermoplastic resin and inorganic filler create consistent acoustic matching layers that resist moisture effects as humidity changes.

Separate PWM circuits drive piezoelectric diaphragms at different resonances to reproduce lower frequencies with less harmonic distortion.

A staggered pair of active vibration members drives a passive member to raise low-frequency sound pressure while limiting space demands.