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J6 The Paddocks,
347 Cherry Hinton Road,
Telephone: +44 1223 210250
Web site: http://www.cambustion.com
Nanoparticle emissions from braking systems fitted to vehicles are of increasing interest worldwide. Studies have suggested that the number of particles emitted by braking systems can be of a similar magnitude to those emitted from the tailpipe of a modern light duty vehicle, and this leads to an increasing desire to characterise the particle emissions from friction brakes.
Cambustion’s DMS500 fast particle sizing instrument combines a wide measurement range (5 nm – 2,500 nm) with 10 Hz data and a T10-90% response time of just 200ms, making it ideal for studying brake emissions which are characteristically short duration and potentially high concentration. The system outputs a size/number spectrum, which can be processed to calculate particle mass and other parameters such as surface area using suitable weighing.
Optional use of constant volume sampling allows real-time calculation not just of concentrations, but also total emissions per second and hence total number (or other calculated parameters such as mass) of particles emitted per braking event.