Volume/Mass Flow By Thermal Effects TRIZ Cases
- Flow Velocity Measurement Using Pressure Fluctuation Analysis
Analyzing pressure fluctuations in a measuring tube determines absolute flow velocity independent of sensor offset drifts.
- Stepped Flow Channel Prevents Particle Contamination in Physical Quantity Measurement
Segmented discharge passages with upstream step surfaces redirect large particles toward ports, preventing interference with fluid flow rate detection.
- Gas Flow Sensor Circuit Multiplexing Current Sources
A gas flow sensor circuit uses multiplexed current sources to drive reference and variable resistors for precise resistance measurement.
- Gas Measurement Probe Shroud for Thermal Dispersion Accuracy
A gas measurement probe integrates a shroud around thermal dispersion sensors to minimize spurious heat losses and extend accurate velocity range.
- Flow Meter Housing with Folded Wall Elements
Folded wall elements support a measuring tube at both ends, resolving stability issues caused by central supports in complex assemblies.
- Multi-Element Microfluidic Heater Reduces Thermal Stress
Segmented heating elements reduce thermal stress and gold usage by distributing heat across multiple controlled zones.
- Flow Sensor Porous Insert Turbulence Reduction
Porous inserts laminarize turbulent fluid flow past sensors, reducing signal noise and improving measurement precision.
- Fuel Gas Conditioning System with U-Shaped Heaters
Segmented heating elements and feedback control prevent condensation in superheated turbine feed gas.
- Air Flow Meter Pulsation Correction via AC Signal Rectification
A coupling unit subtracts a half-wave rectified correction amount derived from extracted AC pulsation signals to maintain air flow meter accuracy.
- Polyimide Membrane Thermal Mass Flow Sensor for Dirty Fluids
Double side passivation of the polyimide membrane prevents moisture absorption and corrosion, sustaining long term stability against alien particles and debris.
- Flow Detecting Device Guard Member Deflects Bypass Flow
Guard members deflect bypass flow from lead portions, reducing heat radiation variation and improving detection accuracy.