Sensors TRIZ Cases

A biopotential electrode uses a differential amplifier circuit to detect signals without direct skin contact.

Fusing multi-sensor data via a state machine corrects misclassifications, resolving noise issues while maintaining device comfort.

An MRI control device calculates electromagnetic wave absorption to set imaging conditions and adjust RF pulse output power.

Ambulatory glucose profiles display median and percentile curves to visualize glycemic trends.

A shape-memory polymer earpiece unfolds in the ear canal to establish direct electrode contact.

Interchanging k-space rows via dynamic gradient pulses minimizes spatial frequency-dependent distortions and artifacts during 3D echo-planar imaging.

A medical device management platform normalizes interrogation data from cardiac implantable electronic devices into manufacturer-independent formats.

An elastic connector adjusts contact pressure in a skin moisture measurement device, enabling accurate detection via terahertz wave reflection comparison.

A human perception test system evaluates driver coordination and focus through synchronized graphic tracking tasks.

Hemispheric baseline and convex spectral clustering detect brain silences using minimal EEG data.

A non-contact mapping system determines electrode spatial position relative to a three-dimensional anatomical model boundary surface.

Integrating analog-to-digital conversion and wireless transmission into a flexible sensor eliminates resistive cable losses and electrical noise interference.

A signal processing system uses recursive cross-correlation to enhance signal-to-noise ratio in weak measurement data.

Composite thermal reflective sheet reduces heat load on superconducting magnets by lowering surface emissivity and preventing eddy current heating.

Simulates MRI scan nesting patterns to identify the optimal sequence based on longitudinal magnetization strength calculations.

A structured optical guide segments light emission to illuminate broader organic tissue areas, reducing measurement errors from localized defects like moles.

A method identifies neuronal spikes using bimodal amplitude distribution and template matching for automated sorting.

Segmented nasal and oral flow passages prevent air mixing, enabling thermistors to distinguish inhalation from exhalation without device obstruction.

Radial light patterns direct through the pupil aperture to resolve alignment speed and accuracy trade-offs in ophthalmic examination.

A clamp electrode device uses a transformable elastic member to connect electrodes to clamp wings.

Optical apparatus measures aqueous humor properties to eliminate skin tissue scattering interference for accurate non-invasive glucose monitoring.

A wearable device detects heart rates using photoplethysmogram signals from a first sensor.

A cardiac state estimation unit processes non-responsive period samples outside threshold regions to identify heart abnormalities.

Dynamic Virtual Bolus MRA synthesizes bolus signals from MR velocity data, eliminating exogenous contrast agent risks for renal-impaired patients.

A driver monitoring apparatus requests specific actions when recognition stability falls below a reference value.

Localized heat alters stratum corneum permeability, enabling pain-free interstitial fluid collection without invasive puncture risks.

Symbolic dynamics transforms ECG intervals into symbol sequences, enabling rapid Shannon entropy calculation that discards noise and avoids classifier training.

A triboelectric wearable sensor generates electrical signals from blood vessel friction to detect cardiac activity parameters.

An auxiliary sensor detects environmental noise to estimate and subtract interference from primary coil signals in low-field MRI systems.

A limb-mounted band detects scratching movements via electromagnetic perturbation to generate accurate behavioral counts.

A disposable syringe uses a separation element to collapse the needle inside the cylindrical body after use.

A method processes two magnetic resonance images acquired with orthogonal phase encoding to construct a unified matrix structure that minimizes numerical differences.

A magnetic resonance method determines complex permittivity using phase differences from multiple coil positions.

A frequency modulated continuous wave radar detects subject motion within a medical device field of view to generate real-time control signals.

A pulse oximeter displays a wait-time indication to inform caregivers of data acquisition progress.

A wearable activity band uses an accelerometer to detect user motion patterns and analyze daily physical activity levels.

Wireless modular patches with stretchable substrates eliminate cable failures and false alarms by converting electromagnetic interference into filtered signals.

Dynamic compensation gradients counteract eddy current artifacts generated by switched gradients, improving reconstructed image quality.

Disposable cartridge with automated syringe pump draws blood via catheters, reducing trauma and infection risk from repeated needle insertions.

Segmenting the field-of-view into distinct resolution zones reduces total scanning time while maintaining superior image quality in critical anatomical areas.

A processing system derives signal polarity from body-surface electrodes to adjust their placement relative to the heart.

An electroencephalogram input component detects brain activity signals to determine user commands, eliminating manual filtering of incoming notifications.

Balanced T1 relaxation enhanced steady-state pulse sequence with contrast-modifying RF pulses to maximize vascular signal intensity.

Analysis unit processes contour data to prevent unfavorable positioning that causes burns, optimizing specific absorption rate monitoring.

Active-embedded dry bio-electrodes house signal-processing components internally, reducing latency and bulkiness caused by separate processing units.