Catalog excerpts
OPTICAL PINHOLE INSPECTION UNITS
Open the catalog to page 1OPTICAL PINHOLE INSPECTION UNITS GENERAL CATALOG Applications Features Product lineups How to select Detection principle
Open the catalog to page 2Applying light to find pinhole defects during ongoing production of a vast range of materials and products In recent years, the inspection process has become indispensable in all types of manufacturing. Hamamatsu optical pinhole inspection units find tiny pinhole defects to help manufacturers improve their product quality and reliability. Besides detecting pinhole defects, optical pinhole inspection units can also monitor drilling, boring and a host of other manufacturing processes. Problems caused by pinholes Liquid leaks Quality degradation Deformation and tears Corrosion Change in...
Open the catalog to page 3Applications [Materials] Accommodates a wide range of materials and products Component and material examples Metal ex. · Stainless steel · Aluminum Paper and nonwoven fabric Semi-transparent materials · Milk cartons · Fabric Degree of difficulty in detecting pinholes in semi-transparent materials In optical pinhole inspection, the difficulty in detecting pinholes is vastly different between materials that let light pass through and those that don’t let light pass through. The words semi-transparent or translucent are used to indicate materials that let light pass through them. Yet there is...
Open the catalog to page 4OPTICAL PINHOLE INSPECTION UNITS Sealed and molded product examples Beverage cans and can lids Aluminum battery pack Aluminum blister pack Pinhole inspection of in-vehicle products Ongoing technological innovations in electric vehicles and fuel cell vehicles are making constant progress in achieving higher performance, lower costs, and greater mass production. Our pinhole inspection units contribute to high-precision quality control and high speed in production of lithium-ion batteries and fuel cells that are core components of vehicle power sources. Lithium ion rechargeable battery [pouch...
Open the catalog to page 5Features [Comparison with other methods] High-speed detection We can provide the optimal unit to match your production line. Highly accurate detection Samples are not exposed to specific environments such as electric fields, magnetic fields and electrolyte or liquids that induce material stress. High-sensitivity optical sensors* ensure high-precision inspections * Our optical pinhole units use photomultiplier tubes or opto-semiconductor sensors we manufacture in-house at our facility. Other features G Self-diagnostic function: Checks detector operation to allow high-reliability inspections....
Open the catalog to page 6Product lineups Feature comparison [for inspection of films] C12190 Detection capability Compatible line speed Compatible films Opaque films only Compatible line width 1 Opaque films only Compatible with semi-transparent films 1 Compatible width per inspection unit Feature comparison [for inspection of molded / formed products] C15477 Compatible workpiece Detection capability Inspection method Inspection speed Compatible workpiece size Cans only Various molded / formed products Various molded / formed products Cans only 5 µm 1 µm Intermittent inspections (Workpiece is clamped for each...
Open the catalog to page 7How to select [Flowchart for selecting an optimal unit] Does any item on the workpiece you want to measure meet any of the following conditions? [Does it contain any objects? Does the workpiece have bag shape contours?] Is the workpiece you want to measure a molded/formed product or a film-like material? molded / formed products Does light pass through the workpiece? What is the workpiece you want to measure? How small is the pinhole you want to measure? Does light pass through the workpiece? Is the pinhole size you want to measure 5 μm or less? Is the workpiece diameter 46 mm or less?
Open the catalog to page 8OPTICAL PINHOLE INSPECTION UNITS Workpiece compatibility quick reference For roll-to-roll materials Target materials Type No. Semi-transparent materials Metal films Cloth, nonwoven fabric Rechargeable battery separators For molded / formed products Target materials Type No. Fuel cell separators Battery packs Blister packs We can evaluate your workpiece samples! To confirm whether pinhole defects in workpieces to inspect can actually be detected, we provide a simple demo unit for demonstrating pinhole detection. If you’d like us to evaluate your workpiece samples, please feel free to contact...
Open the catalog to page 9Detection principle G Pinhole judgment Hamamatsu optical pinhole inspection units allow setting the pinhole judgement threshold to any desired level. Inspection units judge light exceeding the threshold level as a pinhole. 1 Irradiates workpiece with light that is linearly shaped along the workpiece width. 2 Detects light scattering at pinhole or passing through workpiece. Workpiece [Light impervious material] Detecting light that passes through a pinhole No pinholes Light source unit Pinholes present Light source unit Light does not pass through the workpiece Detection unit Light passes...
Open the catalog to page 10C15477 Minimum detectable pinhole size Detection area Offers highest detection capability among our optical pinhole inspection units. Light condensing and light source units are customizable to match large workpieces. Parameter Input voltage (DC) Maximum current consumption Light condensing unit Type No. Wavelength Light source unit Type No. Operating temperature range Storage temperature range Operating / storage humidity range 1Light condensing unit and Light source unit can be customized to match your application. Detection configuration example Light condensing unit A12159 series (sold...
Open the catalog to page 11C12760 Minimum detectable pinhole size Detection width (per unit) Maximum detection speed Highly versatile and even compatible with semi-transparent workpieces. Compact design allowing parallel multi-unit operation. Parameter Input voltage (DC) Detector Detection Maximum current consumption unit Detection width Light source / Wavelength Light Maximum current consumption source Maximum energy output unit Laser class Operating temperature range Storage temperature range Operating / storage humidity range Applicable standard GThe Laser emits invisible laser radiation. The instrument which used...
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