Mechanical Vibrations Separation TRIZ Cases

Segmenting conductive layers on a shared substrate enables multifrequency operation without increasing manufacturing complexity or device control circuits.

Impedance magnitude tracking maintains resonance locking in modified piezoelectric transducers with degraded phase response.

Multi-directional elastic member prevents block collisions to resolve the contradiction between spring elasticity and structural reliability.

Nesting a temperature sensor inside the piezoelectric element's through hole enables precise medium measurement without increasing device volume.

Integrated printed circuit replaces manual cabling to reduce assembly complexity and production costs for high-frequency acoustic antennas.

A controller compares distance information with road surface data to determine detection conditions for obstacles.

An oscillating moveable tip reduces tip resistance in sandy soils, enabling vibratory hammers to reach 40 meters without noise mitigation.

A CMUT fabrication method forms a second membrane while sealing an etching-hole in one operation to ensure uniform film thickness.

Supporting pillars reinforce piezoelectric composite films to prevent structural collapse during vacuum packaging processes.

A linear vibrator uses rubber elastic bodies to support oscillator movement and reduce frequency sensitivity.

Dielectric pedestals on CMUT bottom electrodes reduce contact area, minimizing stiction and charging accumulation during membrane oscillations.

Independent circuitry with resistive and capacitive elements dampens diaphragm motion, reducing quality factor to improve axial image resolution.

Segmented sonotrode generates uniform in-plane vibrations along a long edge.

A circumferential trench filled with a passivation layer guides epitaxial polysilicon growth to define precise transducer plate dimensions.

Electronic control unit replaces mechanical linkages in soil compaction machines to enable precise steering via digitized operating instructions.

A dual-frequency ultrasonic probe integrates high and low frequency elements on a single substrate to optimize signal driving.

Distributed vent holes in PMUT inactive regions dissipate external pressure bursts while maintaining ultrasonic acoustic output through spatial segmentation.

A piezoelectric element manufacturing method applies an electric field during a specific temperature range to induce phase transitions.

Capacitor and resistor network isolates CMUT bias voltage from TX/RX circuitry, preventing damage during device shorts.

A control circuit generates excitation signal sequences and monitoring periods for ultrasonic transducers using a single command.

A Pb-free piezoelectric device uses a multilayer structure combining KNN and BT materials to enhance performance.

A micromachined ultrasonic transducer integrates laterally separated capacitive and piezoelectric elements within a single semiconductor die.

Low-temperature eutectic bonding joins pMUT arrays to ASICs, preventing thermal degradation of piezoelectric materials while maintaining bond strength.

Rubbery thermal interface layers transfer heat from piezoelectric transducers to sinks, avoiding moisture arcing and parasitic vibration losses.

Segmented conductive posts and extension substrates reduce signal loss while protecting acoustic elements from thermal stress during sterilization.

Composite drive voltage emphasizes harmonics to increase sound pressure level without enlarging the buzzer.

An LC low-pass filter blocks harmful high-frequency noise and circuit artifacts, ensuring reliable ultrasonic welding operation.

A synchronized array of vibration actuators generates controllable pure torque vibrations using parallel rotating masses.

Patterning metal layers defines active and inactive piezoelectric regions in PMUT devices to reduce overall capacitance.

A modulated bias voltage signal tests ultrasound transducer arrays in parallel without mechanical stimulation.

A linear vibration motor uses reciprocating motion to minimize device size and optimize component placement in mobile terminals.

A Pulse Amplitude Controlled Switching Current Source drives ultrasound transducer arrays with precise digital logic control.

Local decoupling capacitance reduces peak current requirements in mid-air haptic transducer drivers.

Reciprocating movable sections cancel vibration without dynamic absorbers, enabling downsized high-speed electrical appliances.

A magnetostrictive alternator converts pressure waves into electricity using stacked materials and impedance matching.

A tactile sensation presenting element uses independently controllable unit regions and opposing electrodes to deliver precise haptic feedback.

A device for testing inertial sensors uses two independent oscillation bodies with separate excitation modules to accelerate the sensor in multiple directions.

A compensation sub-circuit supplies a fixed potential to offset transistor threshold variations in ultrasonic sensing circuits.

Backside pad inversion in the package structure creates a flat attachment surface, resolving thickness constraints that limit design flexibility.

A lead-free piezoelectric composition uses rare-earth additives to generate mechanical vibrations and visible light under electrical voltage.

Asymmetric rectangular drive waveforms generate tissue harmonic components, reducing transmission device complexity while maintaining image quality.

Storing the previous operating frequency as the new start point reduces the sweep range, cutting startup time and cycle delays in ultrasonic welding systems.

Customized surface mapping optimizes capacitive micromachined ultrasonic transducer geometry, reducing side lobes and edge effects.

A decoupled sound-generating device emits acoustic waves to move parts on a base without mechanical contact.

An adjustable piezoelectric excitation system couples two masses via variable stiffness elements to calculate and set desired resonant frequencies.

Local reinforcement via a protruding case portion resolves the contradiction between impact resistance and detection accuracy by preserving vibration amplitude.

A transducer uses a shared magnet system to drive both haptic and audio signals through a single membrane.

Rotating unbalanced masses adjust static moment via sensor feedback to reduce load peaks on machine elements during high-speed operation.