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Microscopic Particle Detector Using Laser Microscopy and Image Processing

Updated: Jan 16

By Kyle Tianshi


What is the Problem? 

The invisible TSS (Total Suspended Solids) in water source is becoming a problem with ever-growing plastic contamination. 83% of bottled water and 93% of tap water contain microplastics. My goal was to develop a TSS detector that could measure invisible particles. 


What is Your Solution?

Utilizing an innovative combination of lasers and video image processing, I proved the concept that it is feasible to develop a TSS detector that can measure invisible articles as small as 0.1 microns at concentration of 10ppm. The measurement is accurate and fast. I build a mockup design with a cost of $35 when purchasing individual parts from Amazon. I expect the cost will go down to as low as $15 for mass production.