Thermometers Using Value Differences TRIZ Cases

See how optical scanning and finite element modeling calculate core temperature in real time, e

See how rate-of-change limiting in dry block calibrators prevents PID overshoot and oscillation

See how regulating temperature velocity instead of temperature directly prevents overshoot and

See how real-time detection of Peltier element voltage, current, and power enables feedback con

A ceramic coil replaces fracture-prone beads so eutectic salt fills evenly, speeding overheat detection in aircraft bleed air ducts.

Temperature sensors and a DDC circuit compare parallel transformer heat to predict faults, shed non-essential loads, and avoid BMS shutdown.

Cycle-to-cycle charge efficiency and temperature drift reveal internal battery shorts early, helping prevent thermal runaway.

Charge-efficiency drift and temperature rise across charge cycles reveal internal battery shorts before thermal runaway risk escalates.

Multiple temperature sensors infer coolant flow status from temperature differences, avoiding separate flow sensors in power electronics cooling.

Temperature sensors along a power module coolant path compare actual and expected heat-rise values to detect flow status without extra flow sensors.

Transistor temperature rise and discharge current are combined to detect BMS sampling element shorts without redundant hardware.

Lithium content measured across a battery anode reveals internal temperature gradients under realistic test conditions for safer cell design.

Parallel temperature sensors and time-division switching cut measurement hardware in multi-zone electrostatic chucks while preserving control accuracy.

Independent four-point stage lifting equalizes probe loads to keep the wafer test base level and improve contact stability.

Segmented enable signals create four temperature thresholds, improving lithium battery charge and discharge protection without complex trimming.

A differential virtual sensor compares near and distant temperature readings to detect charging connector overheating with fewer false alarms.

Silicon wafer haze is used as an indirect temperature indicator to avoid sensor drift, improve chamber comparison, and cut wafer testing cost.

Using internal temperature rise slope and load status, the circuit estimates ambient temperature before thermal stabilization and supports early fault alarms.

Replacing fracture-prone ceramic beads with a ceramic coil enables complete eutectic salt filling and faster overheat detection in bleed air ducts.

A virtual sensor compares temperatures near and away from the connector to detect true overheating and cut current before damage occurs.

Estimating rotor temperature from heating power and thermal parameters lets EV battery self-heating stop before permanent magnet demagnetization.

Multiple sensor readings are compared to score measurement confidence, isolate faulty sensors, and improve electric aircraft data reliability.

Optical non-contact sensing and ball lens targets automate multiaxial thermal deformation measurement for machine tool compensation.

An embedded thermocouple in a ceramic aerosol heater measures true heater temperature for tighter control and stable aerosol formation.

Motion, audio, and humidity sensing qualify bathroom water-use events, enabling low-power alerts and coordinated consumption control.

Differential temperature sensing keeps current negligible until a threshold, then boosts compensation to prevent thermal runaway and analog drift.

An embedded thermocouple in a ceramic aerosol heater measures true heater temperature without airflow cooling errors, improving vaporization control.

Outlier analysis of detector and thermostat temperature data flags sensors needing service, cutting fixed-schedule inspections and repeat visits.

An auger-driven robot maps piled granular material in 3D while leveling and monitoring bulk stores, reducing worker exposure to dust and entrapment.

Wheel-mounted temperature sensors and RF transmission track rubber track heat in real time to prevent overheating, wear, and polymer layer damage.

RF-powered wheel sensors transmit track contact temperature in real time, helping prevent rubber track and polymer layer overheating.

Temperature sensing and thermal drift compensation help force-sensitive buttons avoid false presses and keep activation force consistent.

Packaging stress shifts on-chip oscillator frequency; this case uses substrate strain sensing and feedback control to stabilize accuracy over life and temperature.

PTAT, NTAT, and CTAT current sources separate process variation from temperature effects for low-power corner and extreme temperature readout.

By varying sensor input power, this case detects thermal coupling and corrects thermometer errors caused by gradients and heat conduction.

Cooling a molten salt sample and matching its phase-transition temperature profile enables accurate concentration estimation for high-uranium materials.

Temperature sensors compare internal and external housing heat to detect blocked detector airflow with low power and few false alerts.

Cooling-curve matching estimates uranium or plutonium concentration in molten salt accurately at low cost for reliable reactor monitoring.

Voltage and current fed into a thermal model estimate MOSFET temperature quickly, enabling faster abnormality detection than PCB sensors.

Using dT/dt thresholds from a ceramic-coated temperature sensor, this case detects ignition failure and flame loss in premixed hydrogen burners.

Comparing remote sensor temperature with actual die junction temperature reveals cooling degradation without adding sensors near the die.

Time-varying input power and differential sensing detect thermal coupling and correct gradient-driven temperature errors in process measurement.

Wireless thermocouples on window glass feed an MLP-KNN model to locate indoor fire sources in high-rise buildings in real time.

A ceramic-coated temperature sensor tracks temperature change rate to detect ignition and flameout quickly in premixed hydrogen burners.

External temperature readings at multiple strand positions are compared to infer internal tube temperature without probe insertion, improving extrusion control.

UVC LED enclosure disinfection adds temperature sensing and alarms to prevent ultrasound transducer overheating while maintaining high-level disinfection.

Thermocouple sheets, conductive insulator layers, and pure metal leads reduce DSC temperature-difference errors from wire inhomogeneity and drift.

Uses a semiconductor switch's thermal-sensitive electrical parameter to monitor power-module thermal resistance online without extra sensors.

Rigid thermocouples and PN diodes struggle in confined spaces; a flexible liquid-metal path uses impedance shifts and EM reflections to locate hotspots.

Ultrasonic waveguides with echogenic segments map temperature through echo time of flight without inserting sensors into hostile environments.