Convergent multibeam triangulation extends optical lever slope measurement range while compensating for sample displacement errors.
Shared optical paths measure alignment marks and parallelism together, cutting measurement time and reducing vibration and temperature error.
Switching among structured light image groups improves 3D reconstruction quality and robustness when object conditions change.
Infrared transmission through a transparent carrier plate detects sheet edges accurately while reducing sensor count, scan distance, and power use.
Structured light lets the camera detect hand distance in real time, enabling accurate 3D fingerprint capture without extra sensors.
Asymmetric index imaging and interferometry enable accurate surface distance measurement in optical systems with large eccentricity.
Embedded fiber optics measure light reflectivity in composite joint filler to detect strain where ultrasonic and X-ray inspection struggle.
Optical clearance checks at container locking points stop lifting when the chassis remains attached, reducing unsafe crane transfer conditions.
Mirrors and laser targets let engineers inspect multi-camera frame alignment before camera installation, improving 3D telepresence rendering.
Sequential pulsed heating and thermal image matching enable accurate non-contact surface measurement on reflective, transparent, and translucent objects.
Multiple straight Bragg gratings in a multimode fiber isolate mode-group peaks, simplifying radius-of-curvature measurement while improving accuracy.
Multiplexed optical patterns and a pre-scan/high-accuracy scan raise profilometry throughput while preserving height-map resolution for in-line measurement.
Wavefront analysis separates front and back face deformation in transparent parallel-face substrates without complex interferometer setups.
A compact optical layout uses shared lenses, beam splitters, and sensors to measure rigid-body X, Y, Z motion and tilt at once.
Embedded fiber optic cables measure light reflectivity changes to inspect complex composite joints faster and more consistently than ultrasonic methods.
Dual sensors calculate subgrade offset ahead of the screed, enabling reproducible automated road paver leveling across varying terrain.
A movable interposer probe lets one optical sensor measure shaft surface variations perpendicular to the axis without touch-probe calibration.
Opposed TDC paths in a DTOF sensor array cancel logic-delay bias, improving distance accuracy and depth image generation.
Biasing members let the interferometric endpoint housing deflect during assembly, improving dome alignment and endpoint detection accuracy.
Using timed line-light switching across multiple measurement regions, one camera extends shape measurement range while cutting cost and processing load.
Topological light sequences localize multiple fluorophores beyond diffraction limits while reducing light intensity and microscope complexity.
A lifted calibration baseline helps multi-camera line-laser systems correct vibration and stitching errors in steel plate 3D measurement.
Four portable measuring heads use perpendicular radiation at each wheel hub to calculate axle alignment quickly without manual reference marking.
Two forward sensors detect height offsets ahead of a road paver, enabling automatic screed adjustment for reproducible bridge transitions.
Adjustable clamping jaws and a fixed calibration mount speed wheel alignment setup while fitting different hub sizes.
Unique time-shift patterns let multiple time-of-flight cameras share a scene while reducing crosstalk and preserving depth accuracy.
A shared position sensor and receiver path detects beam misalignment in FSO links, simplifying alignment while reducing size and cost.
3D LIDAR contour comparison identifies single or multiple containers despite spreader offset, helping prevent tilting and locking errors.
Image-based positioning calculates movement to align the center of multiple devices with a target point for accurate radiated emission testing.
Multiple internal reflections boost signal strength for fast, stable optical measurement of transparent silicon carbide across multiple locations.
Multiple projector-camera sets with matched focal lengths let one scanner switch between large-area scans and local detail capture efficiently.
3D LiDAR contour matching distinguishes one 40-foot container from two 20-foot containers despite spreader shift, reducing lifting hazards.
By placing the laser close to the tire and inclining the camera, this layout improves alignment accuracy while reducing tipping risk.
Millimeter-wave radar scans wheel surfaces at high sample rates to measure geometry quickly and accurately with less environmental sensitivity.
Optical cell-mass tracking reveals immune-sensitive or resistant tumor microenvironments before immunotherapy, guiding tailored treatment.
A shared FMCW laser and interferometer capture 3D shape and vibration in one setup, reducing inspection complexity for damage detection.
Opposite-direction laser scans estimate scanning mirror delay, suppressing temperature-driven image distortion without angle sensors.
Oblique-angle broadband IR reflection averages out thin-film interference, enabling accurate inline coating thickness measurement on thin substrates.
Two pulse trains with different repetition rates resolve MTA ambiguity in terrestrial scanning while preserving point cloud accuracy and speed.
Position-based X, Y, and Z correction compensates for sensitivity drift in optical particle sizing, improving cross-apparatus consistency.
Correcting thickness sensor readings by sheet width improves measurement accuracy when the recording medium is narrower than the nip.
Dual entry and exit thresholds stop occupied/free flicker in area monitoring by stabilizing object presence detection across beam variations.
An SLM selectively blocks beam segments to vary laser line length at a fixed working distance, improving triangulation data quality and reducing unwanted data.
A statically determinate bearing arrangement mounts the sensor carrier without stress, reducing deformation and improving workpiece measurement accuracy.
Multiple lens curvature centers and sensor tilt measurement enable precise passive camera module alignment without image grabbers or test charts.
Real-time reflectometry combines pyrometer and spectrometer data to track film thickness in process chambers despite lamp interference and window contamination.
Configurable light paths and rotating optical probes enable precise non-contact measurement of small bores and internal workpiece features.
An auxiliary redundant core lets shape sensing compare predicted and measured strain to flag unknown errors in multicore fiber data.
An equivalent-layer spectrum model compensates slurry and dielectric distortion to enable accurate real-time wafer film thickness measurement during CMP.
Passive multi-width waveguide sections stabilize MZI filter frequency response against fabrication and temperature variations without active tuning.