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Rapid & Efficient Microscope Inspection of Engine Wear

publication date: Jan 18, 2016
author/source: Prior Scientific Instruments Ltd.

47 mm filter sample holder

Prior Scientific has announced a new 47 mm filter sample holder for its H101A microscope stage.

Inspection of filters is critical in many industrial processes. This process is vital for fulfilling the requirements of regulations, such as ISO 16232, which covers the characterisation and measurement of particulate contamination of the parts, components and assemblies which make up the fluid circuits of motor vehicle combustion engines.

Filter inspection is important in the design and testing of engines, allowing manufacturers to identify the parts of an engine prone to wear by the metal particles caught on 47mm filters. From both a regulatory and manufacturing perspective, accurate imaging of these filter papers is thus essential. 

The new 47 mm filter sample holder for Prior H101A stage is the latest addition to the company’s extensive range of microscope sample holders.  By automating filtered sample inspection, automotive engine wear testing can now be achieved with increased precision, reduced operator error and enhanced imaging productivity.

The new sample holder fits on the exceptionally precise H101A microscope stage allowing the filter paper to be analysed faster and with a repeatability of just 0.7 µm. Controlled by Prior’s powerful ProScan® III control system the  stage can be easily integrated into an automated imaging system, with the potential to lead to considerable savings in both time and money. 

Manufactured from hard anodised aluminium, with a steel plate cover, the durable sample holder is designed to hold 47mm filter papers securely, yet delivers a viewable area of 45.5 mm in diameter, allowing almost the entire surface to be analysed. Variants which hold three, and variants which hold one, piece of filter paper are available.  

For further information on the new 47mm filter sample holder visit

Prior Scientific has been manufacturing top quality, high performance equipment and instruments for optical microscopy since 1919. Prior Scientific produces a wide range of motorised stages, system controllers, robotic sample loaders and illumination devices.

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