Withdrawing Sample Devices TRIZ Cases

A concentration sensor behind a vehicle wheel measures road salinity using water bounced up by the rotating tire.

Alternating rotation of the hollow drill prevents material entrainment, ensuring complete severing and accurate punching beyond edges.

A biological sample collector uses a deformable coil element to anchor the wick inside the housing.

Semiconducting polymer dots enable reliable fuel authentication by replacing complex equipment with portable fluorescence spectroscopy.

Multiple heating stations with independent temperature control resolve sequential processing delays in slide stainers.

Fluorescence spectroscopy estimates low fluid contamination in boreholes by comparing multi-wavelength spectra against reference data.

A breath analyzer uses a heated tortuous flow channel to maintain sample temperature for accurate volatile substance detection.

An electrostatic air sampler charges bioaerosols to collect pathogens on a replaceable cartridge.

A portable alveolar gas meter uses one-way valves to isolate breath samples for accurate oxygen and carbon dioxide detection.

Disposable optical probe lid detects oxygen consumption via absorption spectroscopy in multi-well tissue culture plates.

A pipette recirculation circuit fills liquid via a direct feed line, preventing atmospheric contact and ion dissolution that degrades ultrapure water quality.

A photo ionization detector uses heating to manage humidity and periodic ionization to extend lifespan.

A portable air sampler uses a centrifugal fan to draw air through membrane filters for microorganism collection.

An optical reading device identifies histology consumables and adjusts printing parameters to prevent blurred prints on varying materials.

Feedback control of sample gas dilution maintains a constant odor vector length, resolving non-linear sensor errors during discrimination.

Segmented closures with absorbent reservoirs maintain solvent levels and prevent evaporation losses during acoustic fluid transfer.

Linear induction motors and voice coil technology replace manual mechanisms to eliminate backlash errors in automated blood cell analysis.

A hand-held concentrator draws fluid through a filter using vacuum suction to capture target particles.

A two-dimensional suspended fluidic channel uses acoustic radiation pressure to align particles toward the centerline.

A biopsy storage device with dual compartments enables simultaneous cryopreservation and chemical fixation of a single tissue sample.

A toilet-mounted urine collector uses a proportional sleeve to extract fluid samples during natural urination.

Low concentration organic solvents in an extraction buffer facilitate rapid nucleic acid isolation from biological samples.

An electronic timing circuit controls a solenoid valve to dispense accurate calibration gas volumes, eliminating manual operation errors during field testing.

Bifurcated fluid exit pathways with dedicated bubble traps accumulate gas bubbles, preventing interference with electromagnetic radiation measurements.

Vapor phase disinfectant treatment for microtome cryostats using controlled temperature gradients to ensure rapid drying and secure component reuse.

A fluid sensor cartridge directs sample and calibration fluids through integrated pathways to enable real-time constituent monitoring.

A reusable sampling device uses a reference material to determine molten electrolyte composition via differential thermal curves.

A specimen collection tip uses capillary phenomenon and air vent holes to accumulate trace liquid into a predetermined holding region.

An electrostatic concentrator directs particles toward an imaging sensor surface for high-resolution detection.

A bead collection probe integrates a vibrational agitator to wash beads without releasing them, reducing fluid carryover and processing time.

Stepped housing surfaces form gaps that direct fluid flow across the entire filtering area, resolving efficiency losses from concentrated filter packing.