Piezoelectric/Electrostrictive Transducers TRIZ Cases

Flexible FPC modules simplify probe assembly and improve liquid-level detection accuracy.

A piezoelectric sensor switches between charge measurement and ultrasonic sensing to detect objects near or away from the operation surface.

A rear vibration element and metal reflector improve front-facing sound output and low-frequency response from the display panel.

Inductor-based piezo drive circuits shrink charging cases and improve finder audio.

A frame-layer cavity over the electrode avoids backside etching, supporting flexible substrates and reliable ultrasonic transducers.

Single-poled shear crystals simplify bender construction and resist high-field depolarization.

This case combines magnet-coil and piezo vibration sources through one transfer unit to widen frequency range and reduce power use.

A conductive filler transfers drive-chip heat to a radiation plate that also supports a vibrating audio device for sound localization.

This case combines ultrasonic transducers and near-field midrange speakers to localize audio, reduce leakage, and enhance bass response.

This case uses slits and elastic-film coverage in a piezoelectric transducer to increase sound pressure and reduce harmonic distortion.

Combining electrodynamic and piezoelectric exciters on one diaphragm resolves the trade-off between low-frequency power and high-frequency uniformity.

Offsetting the ultrasonic element creates separate directivity modes, resolving detection errors between short-range objects and tall structures.

A display device uses harmonic tone simulation to generate low-frequency sound perception without increasing the physical area of its sound generators.

A differential micromachined ultrasonic transducer element uses complementary signal paths to cancel common-mode interference.

Head related transfer filters process audio signals to simulate spatial sound characteristics from virtual sources at specific elevations.

A cover panel integrates a piezoelectric vibration element to transmit sound without an earpiece hole.

A piezoelectric ultrasonic transducer uses a composite membrane to stabilize operating frequency across varying temperatures.

Asymmetric tension on the vibration body suppresses resonance peaks and dips, stabilizing frequency characteristics across the audio spectrum.

A grid ultrasonic transducer array uses bypass wires to route drive signals and common potentials between adjacent units.

Segmented diaphragm with cutouts and dual-end support resolves the strength versus sound pressure trade-off while reducing power consumption.

Coupling a piezoelectric tweeter to a moving-coil diaphragm reduces heat generation and space requirements while maintaining audio fidelity.

A noise reduction device generates anti-noise sound waves to counteract acoustic disturbances in medical environments.

Direct current displaces seismic sensor moving coils to measure eccentricity for precise alignment.

Segmented cylindrical transmitters with piezoelectric stacks extend the ultrasonic transmission zone length in oil wells.

A capacitor blocks parasitic capacitance and inductance from the vibrator housing, preventing resonant behavior that degrades antenna performance.

A resin composition for acoustic matching layers uses a thixotropy imparting agent to maintain uniform hollow filler dispersibility.

A supporting unit creates a separation space between the substrate and vibrating unit to enable sound emission.

Loudspeaker enclosure applies distinct gains and phase shifts to ultrasound frequency components.

Stacking PCB layers with via-connected coil patterns increases magnetic flux density, enabling high-capacity flat panel speakers.

A lead-free piezoelectric ceramic composition uses copper oxide additives to enhance acoustic performance in high-frequency speaker applications.

An inactive region surrounds active areas in a bimorph piezoelectric element, shifting resonance to the low-pitched side to resolve insufficient sound pressure.

A superdirective speaker uses ultrasonic carrier waves to create a directed sound field that overlaps with a conventional loudspeaker.

Sound guiding holes route internal vibrations to discharge points where they interfere with leaked waves, reducing acoustic amplitude.

A vibrating device integrates a diaphragm and fixation electrodes into a single monolithic member to enhance structural integrity.

Opposite-phase diaphragms coupled via a member and series resistance prevent crack failure while enhancing bass reproduction capability.

An electromagnetic interference shield blocks noise between the sensor and panel, preventing image defects while maintaining high recognition sensitivity.

Perforated baseplate apertures adjust air mass loading to achieve wide bandpass frequency response in ultrasonic transducers.

Radial rib segmentation reduces residual stress sensitivity while maintaining flexural rigidity, ensuring stable single-mode operation.

A gas concentration sensor uses a metallic couplant to bridge piezoelectric transducers and transformers, improving acoustic signal transmission.

Merges insulating structural frameworks with embedded conductive pathways via additive manufacturing to eliminate separate assembly steps.

Stacked adhesive layers connect insulated conductive shields to protect functional elements from electromagnetic interference during mass production.

Resonance circuit co-performs resonance with a flap pair to generate opposite polarity demodulation signals.

Analyzing audio data determines the optimal bending angle for a flexible device, aligning speaker configuration with stereo or surround content requirements.

Printing piezoelectric ink resolves mounting difficulties on flexible surfaces, enabling integrated haptic feedback and sound production.

Bias voltage shifts operation into a high-response region, reducing sound distortion while preventing electrical breakdown.

Variable diameter acoustic transformers adjust beam angles without compromising sensitivity or environmental protection.

Housing sound guiding holes guide internal waves to interfere with leaked sound, reducing leakage by 20 dB without adding weight.

Segmented reinforcing members near drive points suppress natural vibrations in flat diaphragms, resolving frequency response peak dips.

A piezoelectric element manufacturing method uses hexafluorosilicic acid etchants to form parallel segments with precise dimensions.

Segmented sound generating unit and open ear canal design balance music enjoyment with ambient sound awareness for outdoor safety.