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Cottonscope Pty Ltd is a subsidiary of BSC Electronics. 

Diamscope was developed by BSC Electronics, a world leader in unique fibre measurement instruments used in over 30 countries around the world. We have been designing and manufacturing fibre measurement instruments for over two decades under the OFDA brand (  


OFDA stands for “Optical-based Fibre Diameter Analyser”.


Based on the latest digital video technology, OFDA technology is unsurpassed in many applications.  For example:

  • When the price of cashmere can double with a diameter difference of 1um, from Mongolia to Italy, OFDA is the number 1 instrument of choice.  

  • Precise measurement of fibre curvature (crimp) is critical in applications such as filter mesh, OFDA is the only suitable rapid, high accuracy instrument and is used by a leading Swiss filter manufacturer.  

  • Classing sheep in the Australian outback demands optical systems that work in extreme temperature, vibration and dust levels. OFDA2000 is portable and meets the high accuracy required. OFDA2000 was used to class wool into the finest bale ever produced.  

  • The resolution and speed of OFDA make it the only choice for measuring ultrafine glass fibres for the highest quality circuit boards used in the next generation of electronic devices.

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