Screen Shot 2020 09 17 At 12 21 55 Pm
Screen Shot 2020 09 17 At 12 21 55 Pm
Screen Shot 2020 09 17 At 12 21 55 Pm
Screen Shot 2020 09 17 At 12 21 55 Pm
Screen Shot 2020 09 17 At 12 21 55 Pm

Understand noise at the sub-nanometer scale.

Every positioner has some level of uncertainty in its position, some slight amount of movement that contributes noise to a measurement.
Screen Shot 2020 09 17 At 12 21 55 Pm
Screen Shot 2020 09 17 At 12 21 55 Pm
Screen Shot 2020 09 17 At 12 21 55 Pm
Screen Shot 2020 09 17 At 12 21 55 Pm
Screen Shot 2020 09 17 At 12 21 55 Pm

Every positioner has some level of uncertainty in its position, some slight amount of movement that contributes noise to a measurement. The question is whether that uncertainty—also known as position noise—is tolerable for a given device and a given application. Most manufacturers of nanopositioning systems specify their noise, but for a customer to make an informed decision, they must have some understanding of what that noise specification means.