(Level Sensing)
From this Article:
An optical level switch works by emitting a beam of infrared light within a prism and measuring the amount of light received. When the measured fluid reaches the sensor the amount of emitted light... (View Full Article)
(Switches)
From this Article:
With the advent of the desire for "Green solutions" and the demands from customers for ROHS and REACH compliance calling to replace useful but potentially hazardous materials like mercury in the... (View Full Article)