Paper-Money Testing Devices TRIZ Cases

See how sensor-based goods separator detection controls conveyor belt movement to improve item

A divider sensor ahead of the scanner adjusts belt movement to separate closely placed items and improve checkout recognition reliability.

Switchable magnetic potentiometers redirect flux to cut disassembly force and stray fields while preserving spin resonance measurement.

An eddy-current-damping magnetic core preserves spin resonance signal quality, enabling reliable authentication of fast-moving banknotes.

Eddy-current-damping magnetic cores suppress induced currents in fast banknote testing, improving spin-resonance signal accuracy and reliability.

A single light guide delivers excitation light and collects phosphorescence, shrinking the sensor while improving decay-time discrimination.

A ferromagnetic field concentrator focuses flux in the magnetization region, cutting stray field, magnet cost, and sensor interference.

A ferromagnetic concentrator focuses the magnetic field in the magnetization region, reducing stray flux, magnet size, and sensor interference.

Angular placement of two magnetic member sets boosts pulse signal intensity for sheet detection without adding excessive wires or cost.

Distributed feedback gratings in a flexible membrane laser create unique lasing spectra for lightweight security tags, authentication, and sensing.

Laser annealing turns discontinuous conductive layers into plasmonic nanoparticles for secure, template-free anti-counterfeit images.

A printed ZnS luminophore with mixed crystal phases enables deep red electroluminescence plus thermal or optical authentication signals.

Magnetically aligned reflective platelets follow a surface of revolution to create distinct multi-axis reflections that strengthen anti-counterfeiting security.

Spectral taggant keys and remote verification link gemstones to documents, making counterfeiting and unauthorized changes harder.

Nanostructured relief patterns mix monochromatic subpixels to create brighter multi-color security images without the darkening seen in RGB grating designs.

A near-infrared absorbing print layer uses a tuned transmittance ratio to keep codes hidden in visible light yet readable with stable NIR recognition.

A planar coil in the air gap boosts spin resonance banknote sensing while suppressing magnetic-core eddy currents at high speed.

A translucent optical form and viewing housing sharpen laser reflection points on document security features while staying within class 1 safety limits.

A curved reflective housing diffuses multi-wavelength UV light to reveal inks and fibers with high contrast for camera-based inspection.

Adjusts white reference data for edge pixels near transport path side walls, improving shading correction and robbery ink detection.

Classifying document images and analyzing glyphs with a discriminator neural network improves counterfeit detection despite model variation and image defects.

Individually controlled grippers let substrate sheets pause, reverse, or vary speed across RFID and optical checks while maintaining throughput.

Multiple volume reflection holograms with distinct angles and wavelengths make identity card authentication machine-readable and harder to forge.

Directional intensity differences in a pattern vector speed object position and orientation detection under changing illumination.

MR sensor waveforms are cross-checked with CIS-based OCR to read check MICR accurately in ATMs without a high-resolution MICR sensor.

Compares banknote entry-exit records with storage-linked physical quantity changes to detect cash loss quickly and reduce manual inspection.

Genetic algorithm tuning of binarization and region-detection parameters cuts serial number recognition setup time for paper sheets.

Random orientations and positions of diamond particles create unclonable codes that stay reliable where spectral authentication is impractical.

Portable wavelength-specific illumination and image overlay reveal document security pigments for accurate authentication without complex detectors.

Computer-synthesized planar diffractive optics create zero-order 3D wireframe images that strengthen visual authentication and resist counterfeiting.

Distinct modulation frequencies and shared stripline resonators enable compact banknote spin resonance detection with less crosstalk and better spatial resolution.

Multiple credential images at different orientations reveal secure-feature reflections that improve fraud detection beyond single-image checks.

A printed background pattern is encoded into a machine-readable code to verify document-specific text regions and detect tampering.

A printed background pattern is encoded as a machine-readable code so altered ID text creates a detectable mismatch during authentication.

Internal infrared-absorbing marks let gaming chips be authenticated without visible surface cues, making counterfeiting harder and chip type easier to verify.

Simultaneous feeding of multiple stripline resonators raises spin resonance signal-to-noise ratio and tests larger or non-adjacent carrier areas.

Raw NIR image output lets users verify invisible-mark authentication directly, improving determination accuracy and supporting rechecks.

Dual security elements link visible and machine-readable data to detect tampering and authenticate forged documents without network access.

UV-excited visible and infrared photoluminescence are compared with reference ranges to authenticate high-security sheets mechanically.

High-frequency radiation powers an embedded light source to reveal concealed security data for simple, hard-to-copy document verification.

Partially overlapping luminescent spectra and decay-time ratios create more distinct document codes with simpler sensors and lower manufacturing complexity.

A microstrip resonator and shielding element improve spin resonance signal quality for accurate testing of fast-moving banknotes.

Cast-cure relief structures create tactile and optical security features on flat substrates without the pressure and heat that can deform foils.

Thresholded image capture through an opaque security window verifies signed mail without uncovering the signature or compromising privacy.

UV excitation and visible/infrared photoluminescence checks improve sheet authentication by distinguishing genuine sheets from counterfeits.

A stripline resonator in a magnetic core air gap improves signal-to-noise ratio for fast, reliable spin resonance banknote testing.

A fast first validator screens notes, while a second high-resolution check inspects suspect items to improve counterfeit detection without slowing transactions.

A hidden secondary security element is encoded in a primary pattern and revealed by pitch or orientation mismatch for angle-dependent forgery checks.

A two-stage validator routes suspect bills to high-resolution checks, improving counterfeit detection without slowing terminal transactions.

Correction optics broaden CIS sampling in the transport direction to reduce Moiré and under-sampling in banknote imaging.

Multiple impedance criteria let a feed-path coil distinguish real foreign matter from metal banknote features, improving detection accuracy.

Angle-dependent secondary encoding inside a primary security element makes secure data carriers harder to forge and tamper with.

Magnetic resonance and fluorescence read particle orientations to create a physical code that resists cloning and verifies object authenticity.