Thermometers Using Physical/Chemical Changes TRIZ Cases

A PMUT ultrasonic sensor uses phase-delayed beamforming patterns across a two-dimensional transducer array to direct acoustic signals.

A Michelson interference optical fiber sensor detects temperature via fringe contrast changes using a broadband light source and coarse wavelength division multiplexer.

A multicore fiber optic sensor separates sensing and transmission cores to maintain optical signal integrity in harsh environments.

A unified calibration method combines measured values from multiple products to determine product-independent weights.

An optical time domain reflectometer applies localized temperature stimulus to detect target fibers using Raman backscatter signals.

Deep learning predicts internal temperature rise in superconducting levitation devices using vibration acceleration features.

Correction parameter calculation unit compensates optical fiber dispersion characteristics to improve spatial resolution.

Applying a thermochromic coating to polymer actuators enables visual temperature monitoring without external sensors, reducing device complexity.

Passive thermochromic compounds change color at specific thresholds to reveal efficiency losses in thermal systems, eliminating complex instrumentation.

A cored wire design with a sacrificial intermediate layer protects an optical fiber from devitrification in molten steel baths.

Heating a capillary to splice it directly onto an optical fiber eliminates adhesive creep and signal attenuation in fiber Bragg grating sensors.

An ultrasonic transceiver propagates waves parallel to a mold copper plate surface to detect temperature via echo propagation time.

A multi-wavelength fiber Bragg grating sensor detects environmental changes along an optical fiber.

Segmented optical fiber sections with intermediate supports isolate FBG sensors from tube strain, improving temperature measurement accuracy.

A transducer array combines monopole, dipole, and quadrupole radiation modes to generate directional acoustic beams.

Direct digitization of mixed optical signals accelerates Brillouin spectral analysis while reducing acquisition noise.

An ultrasonic sensor measures liquid metal level and crystallizer temperature without radioactive sources or thermocouples, preserving structural integrity.

Distinct cladding diameters allow matrix separation of spectral shifts, eliminating cross-sensitivity between strain and temperature readings.

A distributed sensing device corrects measurement signals using a second relation to enhance precision.

An acoustic resonator sensor uses standing waves to measure fluid properties via transducers.

An optical fiber sensor system induces nucleate boiling to measure fluid properties accurately in harsh industrial environments.

An ambient light filter samples optical current during pulse gaps to remove interference signals from heart rate sensors.

Acoustic airspeed sensors bypass pitot probe ice blockages by using propagation functions to account for boundary layer effects.

A thermochromic indicator on an optical module handle visually signals surface temperature changes to prevent maintenance burn injuries.

A polarization maintaining fiber system employs a feedback loop to adjust laser power, stabilizing optical length against temperature fluctuations.

Integrated Peltier coolers in test cables autonomously generate temperature changes, providing extensive data required for Safety Integrity Level certification.

A dual-mode microwave transducer measures near-surface and deep brain temperatures using separate antennas.

A composite sensor couples a ceramic sensing element to a metallic ultrasonic waveguide via an acoustically transparent bond.

Irreversible organic pigments indicate temperature exposure without confusion from carbon residues.

Replacing coherent lasers with lowly polarized SLED sources reduces spatial coherence noise in single mode fiber distributed temperature sensing.

Constant intermediate circuit voltage maintains natural resonant frequency, eliminating interference noise during induction heating temperature determination.

High-pressure sintered inorganic binders eliminate organic oxidation and hysteresis to maintain accurate optical signal quality.

A radiometer uses a replacement signal mechanism to maintain corrected signals within linear amplification ranges during pulsed operation.

A paving machine controller recalls saved screed assembly parameters to automate actuator positioning.

A temperature detection system uses spin cross-over material to convert thermal changes into optical signals for precise measurement.

Multiple microphones estimate noise for independent speaker channels, replacing mechanical buffers with active acoustic fields to reduce device complexity.

Visible light thermography replaces expensive infrared equipment to measure temperature in plastic packaging while reducing photobleaching errors.

An optical source emits radiation to induce luminescence in dissolved oxygen for concentration analysis.

A fixed-wavelength optical interferometer detects temperature through output intensity variations.

Joint wavelet denoising processes Stokes and anti-Stokes signals to enhance signal-to-noise ratio.

A signal processing device filters Raman backscattering data using threshold-based synthesis to improve temperature resolution.

A humidity measurement optical fiber with a detection layer calculates Brillouin and Rayleigh frequency shifts to determine moisture levels.

A centralized management server monitors color states across multiple printing devices to automate quality checks and adjustments.

Reference cell absorption spectra calibrate photonic resonators, reducing measurement complexity while maintaining temperature precision.

A fiber optic sensor with a fiber Bragg grating detects temperature in casting mold side wall plates.

Spectroscopic detection of ultraviolet light absorption edge wavelength derives the temperature of a transmittance member without physical contact.

Pre-stored correction data compensates for deviations at temperature variation points, resolving the trade-off between dynamic range and measurement accuracy.

A deformable mirror adjusts illumination wavefronts to enhance returned optical signal strength in remote sensing systems.