Withdrawing Sample Devices TRIZ Cases

Capillary pressure gradients in microfluidic channels separate metered liquid from excess fluid, eliminating complex pressure generation means.

A solid-phase microextraction device uses a segmented guide and holding mechanism to protect the fragile extraction fiber during operation.

A charged conductive substrate captures airborne particles via electrostatic precipitation for optical analysis.

Lateral slot probes capture fluid slices at pipeline velocity, preventing liquid disassociation and ensuring accurate BTU content measurement.

Tangential air flow stabilizes a moving sheet relative to a sensor, eliminating measurement errors from tension and curvature.

Thermal desorption concentrates vapors before high-temperature SESI ionization, reducing solvent contamination to detect ppq levels.

A magnetic picker extracts target analytes from suspensions using force gradients.

Segmented radiation channels isolate detection paths from turbulent airflow, enabling accurate airborne impurity monitoring in confined vehicle cabins.

Variable displacement piston adjusts sample volume dynamically, eliminating complex piping modifications required by fixed containers.

A fine particle sensor casing positions gas inlet and outlet holes to overlap in the arrangement direction, stabilizing internal ion flow.

Segmented recesses in the cuvette body create variable layer thicknesses, resolving conflicts between small sample volumes and fixed measurement paths.

Automated laser microdissection replaces manual marking with image analysis, eliminating fatigue and errors while increasing throughput.

A biological sample collection assembly uses a filtering component to separate free cells from fluid samples for storage.

A sample extraction support tool guides extracted samples to the bottom of a well using centrifugal force.

A passive aerosol sampler harnesses natural air currents to draw airborne particles toward a deposition surface for subsequent analysis.

A cylindrical turbidimeter vial uses an optical shielding element to block stray light from reaching the detector.

Size exclusion separates small fetal DNA from larger maternal fragments to resolve low concentration detection challenges.

Supply tube shields reference gas filter adsorbent from ethyl alcohol degradation, stabilizing nitrogen monoxide detection accuracy.

Liquid handling device displays machine-readable codes on its integrated screen to transmit status information without adding wireless hardware components.

Vibration and pressurized fluid injection clear debris from gas extraction conduits, preventing filter clogging during drilling operations.

Collection arm gathers aerosol samples to resolve contamination risks while maintaining standoff distance.

A handheld wand uses impinging air flows to collect chemical residues from surfaces.

Automated field apparatus captures and preserves unstable RNA analytes from aqueous bodies using electronically controlled valves.

A clip-on air quality test unit uses sticky substrate panels to capture airborne pollutants from HVAC vent airflow for laboratory analysis.

Pressure difference sweeps coalescent material away from the filter, preventing clogging without relying on gravity.

A combined actuating device integrates trimming adjustment and retraction activation into a single rotary mechanism.

A fluid composition sensor uses a light shield with baffle elements to redirect divergent illumination beams away from the collection media.

A sterile syringe integrates a venturi vacuum source to collect trace biological specimens using detachable tools.

Nested sample bags in a semi-flexible clip structure enable one-handed surface sampling, reducing waste from multiple packaged items.