Thermometers Using Material Expansion/Contaction TRIZ Cases
- Porous Separator Sheet Screening by Shut-Down Temperature
Measures air permeability during heating to flag porous battery separator sheets likely to show abnormal post-coating permeability.
- Thin Film Resonator Sensor Embedded by Laser Foil Printing
Micromachined foil cavities and dielectric ceramic films create an embedded resonator and waveguide for structural health monitoring without wires.
- Bimetal Switch Temperature-Sensing Tape for Flexible Trip Thresholds
A bimetal-switch sensor tape replaces multiple fixed-trip sensors by enabling adaptable overtemperature protection across different devices.
- Coolant Acoustic Sensing for Superconducting Quench Localization
Pressure waves in coolant reveal confined quench zones in superconducting cables and magnets, enabling faster location detection than voltage taps.
- Gate-Source Thermal Shorting for Over-Temperature Switch Protection
A passive actuator thermally shorts gate and source only above a threshold, protecting switches and restoring normal operation after cooling.
- Diffusion Cell Head Heating for Extended Temperature Control
A fluid heat exchanger and thermostat keep the diffusion cell head at stable elevated temperatures for longer in vitro permeation studies.
- Structural temperature self-monitoring system based on chiral structured shape memory polymer
Temperature-driven deformation in a chiral shape memory polymer plate powers triboelectric sensing for accurate structural temperature monitoring without external power.
- Confocal Drum Temperature Monitoring for Cryogenic EUV Sources
Confocal distance sensing tracks cryogenically cooled EUV drum temperature accurately, avoiding pyrometry and thermocouple errors.
- Fiber Optic Flow Sensor Using Etalon Interferograms in Blood Vessels
Etalon interferograms and excitation light enable accurate blood-vessel flow measurement without angle dependence, acoustic interference, or added power.
- Foam Bead State Detection in Sealed Bacterial Culture Containers
A foam bead reveals temperature and pressure inside a sealed bacterial culture container, enabling reliable 140°C process verification.
- Irreversible Powder Expansion Monitor for Harsh Thermal Profiling
Irreversible expansion of a temperature-sensitive powder enables accurate thermal profiling in harsh heating environments without emissivity errors.
- High-Resistance Sensor Structure for Low-Power Force Measurement
Low-resistance contacts limit power use while a gap-positioned high-resistance material improves force measurement accuracy and reduces cross-channel effects.
- MEMS Thermal Sensor Array With Sapphire-Based Drift Correction
A sapphire-encased platinum array compares resistance and strain measurements to correct calibration drift in HTGR environments.
- Circuit-Substrate Environmental Stress Indicators for Damage Logging
Stress events on circuit substrates are logged through continuity changes, helping identify heat and mechanical damage sources.
- High-Resistance Sensor Contact Design for Low-Power Accurate Measurement
A high-resistance material in the contact gap improves sensor resolution while reducing power consumption and hysteresis.
- Low Coherence Interferometer for Substrate Thickness and Temperature Measurement
A low coherence interferometer measures substrate thickness and temperature by altering reference light optical path length.
- Ti-Ni Alloy Torsion Angle Control for Thermal Cycle Stability
A Ti-Ni-based alloy maintains stable transformation temperatures by controlling the Interface I torsion angle to less than 1.00° between habit plane variants.
- Rubber Expansion Ratio Detection via Calender Pitch and Temperature Control
An automated detection system calculates rubber expansion ratio from thickness and pitch values, reducing production costs through precise parameter control.
- Wide-Range Constant Volume Gas Thermometer Design
A constant volume gas thermometer combines a membrane pressure sensor with a Pirani device to resolve parasitic volume errors across wide temperature ranges.
- Virtual Axle Temperature Estimation via Convection Models
A controller estimates axle assembly temperature using ambient and transmission fluid inputs with a lumped system model.
- Integrated Reservoir Thermometer with Silicone Adhesive Sealing
Integrating the reservoir and capillary tube eliminates delicate manual assembly steps, reducing production costs while maintaining alignment precision.
- Patch Thermometer Using Phase-Change Polymer for Precision
A patch thermometer uses a phase-change polymer to detect temperature via magnetic distance changes.