Other
Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: > Other optical instruments and appliances: > Other: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9031.49.90.00
Laser Surface Profilometer
A precision instrument using laser interferometry to measure surface roughness and topography on manufactured parts. Classified under HTS 9031.49.9000 as an other optical measuring instrument for quality control in precision engineering, not specified elsewhere in Chapter 90.
Optical CMM Coordinate Measuring Machine
Non-contact coordinate measuring machine using optical sensors and cameras for 3D dimensional inspection of complex geometries. Falls under HTS 9031.49.9000 as other optical measuring instruments for industrial metrology applications.
White Light Interferometer
Optical instrument measuring surface form and finish using white light interferometry for sub-micron precision. HTS 9031.49.9000 covers this advanced optical measuring technology used in semiconductor and optics manufacturing.
Telecentric Optical Comparator
Profile projector alternative using telecentric optics for distortion-free 2D measurement of small precision parts. Classified HTS 9031.49.9000 as other optical measuring instrument replacing traditional optical comparators.
Machine Vision Gauging System
Industrial camera-based system with telecentric lenses for automated dimensional inspection and defect detection. HTS 9031.49.9000 for optical measuring machines used in high-volume manufacturing quality control.
Conoscopic Holography Sensor
Compact optical sensor using conoscopic holography for 3D surface profiling and vibration analysis. Advanced optical measuring instrument under HTS 9031.49.9000 for R&D and production metrology applications.
Structured Light 3D Scanner
Optical 3D scanner projecting structured light patterns for high-resolution surface digitization and reverse engineering. HTS 9031.49.9000 classification for industrial optical measuring and profiling applications.
Fringe Projection Profilometer
High-speed optical profilometer using phase-shifted fringe patterns for dynamic surface measurement. Precision optical instrument under HTS 9031.49.9000 for automotive and aerospace quality assurance.
Autocollimator Optical Alignment System
Precision optical instrument measuring small angular deviations for machine tool alignment and optical testing. HTS 9031.49.9000 for electronic autocollimators used in metrology laboratories.
Chromatic Confocal Sensor
Non-contact optical sensor using chromatic aberration for high-speed surface profiling and thickness measurement. Advanced optical measuring technology under HTS 9031.49.9000 for inline production monitoring.
Moiré Fringe Pattern Analyzer
Optical instrument analyzing moiré interference patterns for strain measurement and surface profiling. Specialized optical measuring system classified HTS 9031.49.9000 for materials testing applications.
Digital Holographic Microscope
Combines digital holography with microscopy for 3D quantitative imaging and surface metrology. HTS 9031.49.9000 classification when measurement function predominates over microscopic observation.
Optical Flatness Tester
Interferometric instrument measuring surface flatness of precision optical components and gauge blocks. Precision optical measuring instrument under HTS 9031.49.9000 for gauge and optical manufacturing.
Confocal Laser Scanning Gauge
Point sensor using confocal laser scanning for precise distance and thickness measurement in production lines. Industrial optical measuring instrument HTS 9031.49.9000 for automated quality control.
Phase Measuring Interferometer
Advanced optical instrument for phase map measurement of optical surfaces and wavefront analysis. High-precision metrology equipment under HTS 9031.49.9000 for optics manufacturing quality control.