Optical Signal Transducers TRIZ Cases

Optical interference signals shaped by tool-generated sound waves control material removal depth for consistent airbag cover tear resistance.

Acoustic pressure vibration and photoacoustic bone conduction are combined to improve massage usability, comfort, and safety without electrodes.

Reflected light tracks deflectable surface motion precisely, enabling acoustic sensing without a sound port for better dust and water sealing.

Reflected light tracks deflectable surface motion for precise acoustic sensing without sound ports, enabling water- and dust-proof designs.

A reflected light beam captures window vibration from speech, enabling two-way communication with sealed vehicle occupants without opening windows.

Laser interferometry detects skull-conducted voice vibrations to reject traffic and engine noise and improve speaker-phone signal clarity.

A diamond cantilever and Fabry-Perot optical readout improve weak acoustic signal sensitivity while resisting EMI, corrosion, and harsh environments.

Talbot-length grating spacing cuts diffraction light loss in optical displacement sensing, improving detector coupling and signal-to-noise ratio.

Direct refractive index sensing through a space-coupled optical path reduces acoustic reflection and improves sound detection accuracy.

Light-driven thermal deformation deflects the eardrum to widen hearing range while keeping the auditory canal open for better comfort.

Light-driven thermal bending vibrates the eardrum across 20 Hz to 20 kHz without sealing the ear canal, improving comfort and hygiene.

Multiple laser reflections in a compact cavity extend the optical path, boosting sound pressure sensitivity for ultrasonic detection above 100 kHz.

Optical fibers enable distributed underwater noise sensing with many measuring points, avoiding hydrophone insulation and data collection limits.

By sensing speech-induced skin vibrations with light, this case shows cleaner voice capture and more reliable detection in low-SNR noise.

A rotating graphene sheet in a magnetic field enables precise motor or generator operation under extreme temperature and radiation conditions.

Degassed-water reference signals generate a filter that removes cavitation noise from laser Doppler measurements of underwater transducer vibrations.

Talbot-length alignment reduces diffraction light loss and improves sensor sensitivity.

Piezoelectric transducers and pressure-driven flow precisely reorient liquid crystals in microchannels for rapid optical modulation.

An opto-acoustic transducer converts sound to electrical signals using light modulation and photodetectors.

Wavelength division multiplexing isolates transmission path interference from sensing signals, improving measurement accuracy in optical fiber systems.

Laser direct structuring forms conductive traces within a molding compound to reduce package height and improve manufacturing yield.

Photo-electro-mechanical hearing transducer replaces magnetic coils with light to eliminate acoustic feedback in open canal devices.

Reference interferometers cancel laser frequency and intensity noise to improve signal-to-noise ratio in compact optical sensors.

Neural networks process filtered Rayleigh signals from wrapped optical fibers to distinguish red palm weevil sounds from ambient noise.