Volume/Mass Flow By Thermal Effects TRIZ Cases

A gas chromatography column uses segmented heating to establish a monotonically non-increasing thermal gradient with a positive second derivative.

An inclined surface directs fluid away from the sensor detection section, eliminating mesh maintenance and reducing structural complexity.

A mass flow controller adjusts valve opening via temperature-dependent correction signals to maintain consistent gas flow rates.

A transistor structure with an elastically deflectable control electrode portion changes distance to the channel region under applied force.

Automated testing apparatus measures drilling fluid rheology using integrated pumps and sensors, resolving pump failure in gelatinous samples.

A microneedle features a swellable polymer coating on its tip that engages skin tissue upon moisture exposure.

Localized passage narrowing suppresses turbulence at the sensor while maintaining flow velocity across a wide range.

Upstream plates stabilize pulsating airflow entering the bypass passage, reducing measurement errors from air separation.

An airflow sensor uses an inclined heating resistor to deflect suspended particulates away from the sensing surface.

Widened electrode pad ends create distinct bonding zones that resolve manufacturing ambiguity and prevent component interference in thermal flow sensors.

A processing device generates estimated flow measurements using non-flow process variables to validate actual sensor data.

A fused glass substrate with distinct etch rates enables precise cavity formation for integrated circuit packaging.

Silicon micromachined thermal mass flow meter measures gas flow using serpentine thermistors and Wheatstone bridge circuits.

Segmented thermal sensing distinguishes air bubbles from zero flow conditions while maintaining accurate low-rate measurements.

A thermal gas flow meter employs a discharge groove to prevent backflow and dust accumulation, resolving precision loss from complex support structures.

Replacing mechanical gauges, the cap uses MEMS sensors and IoT links to transmit precise gas consumption data for remote monitoring.

An etched glass flow path stabilizes detection accuracy by preventing cross-sectional inconsistency from sandblasting.

SF6 plasma undercutting and DRIE processes form variable bevel angles, overcoming fixed crystallographic constraints in wet etching.

A thermal flow sensor measures gas oscillations to calculate volumetric flow rate and heat transfer parameters for combustion analysis.

Replacing polysilicon with aluminum or tungsten in CMOS sensors resolves noise and thermal range contradictions.

Mass flow controller uses voltage pair analysis to detect sensing element circuit changes without removing the device from the tool.

Hydrophobic patterning in a liquid router enables controlled switching between exit microconduits by spin speed, eliminating mechanical valves.

A loop-shaped thermal flow sensor uses a single thermistor to measure fluid velocity with high sensitivity.

A thermal flowmeter compares upstream and downstream thermopile output voltages against stored reference data to identify sensor element abnormalities.

Alternating heat between two measuring elements detects surface contamination via signal deviation, enabling real-time recalibration without process suspension.

Single-crystal silicon diffusion resistors align parallel to the <100> orientation within an integrally molded thermal airflow sensor assembly.

Stacking a logic die above a pressure sensor on one substrate reduces package size while mold compound protects contacts from corrosion.

Flow regulating plates stabilize intake air around the meter exit to reduce measurement variations.

A thermal mass flow sensor derives gas temperature from input voltage variations under constant current.

A power device temperature monitor uses an inductor and amplifier to derive operating temperatures from voltage changes across the output terminal.

A passage forming housing incorporates a guiding means to direct measured air toward the center of the flow path.

A modular flow resistance element uses interchangeable screens to adjust flow range within a single unit.

An impedance measurement system calculates effective tortuosity from frequency-dependent data to evaluate electrode performance.

A flowmeter probe uses a flexible printed circuit board to mount thermistors against a conduit wall for rapid fluid detection.

Alternates heated and ambient sensor phases to resolve thermal contradiction and preserve measurement precision.

A pressure sensor measures crankcase pressure to determine adjustable operating parameters for fuel quantity and ignition timing.

Integrating a dual-function resistive sensor into the flow rate measuring device compensates for thermal variations from nearby electromagnetic valves.

A fusible element inside a signal tube melts to block hot air flow, preventing over-temperature conditions while allowing engine operation without shutdown.

A flow measurement system merges Coriolis and thermal sensors to determine specific heat capacity and thermal conductivity of a medium.

An in-line flowmeter uses an interior measuring tube to sample fluid flow within large diameter pipes.

Larger bypass taps reduce signal noise and improve accuracy by maintaining laminar conditions.

Multi-layer nanoscale coating encapsulates sensor bond pads, preventing oxidation and short circuits at diffusion barrier sidewalls.

A serpentine flow channel guides fluid around corners to promote laminarized flow within a sensor assembly.

Lateral through-contactings route high current through micromechanical housing walls, reducing manufacturing complexity compared to vertical vias.

A temperature control arrangement uses fluid circulation tubing to manage specimen bath heat exchange across multiple test stations.

A crystalline resin cover with non-crystalline alloy enables laser welding of flow sensor housings.

A thermal flow sensor determines correction variables from medium thermal parameters to compensate flow velocity measurements.

Capillary-driven thread networks eliminate physical barriers, reducing fabrication complexity and device footprint.

A flow rate sensor correction device adjusts sensitivity coefficients to align output signals with actual fluid characteristics.