Nano-METZ position noise power spectrum showing flat response at low frequencies with position noise floor of 400 femtometer/√Hz.
Mad City Labs' implementation of our exclusive PicoQ® sensor technology minimizes position noise for the best positioning resolution in the industry. Our high performance stages have moved beyond the realm of nanopositioning into picopositioning, leaving former competitors behind. Legacy capacitive sensors cannot achieve picometer resolution. The position noise power spectrum of the Nano-METZ is shown below left. Positioners with PicoQ® senorsexhibit noise floors in the femtometer/√Hz range and positioning resolution in the picometer range. Below right is a plot of the Nano-HS3M performing a 20 picometer peak-to-peak sine wave using the 20 bit DAC in the Mad City Labs USB interface, while the sensor is being rmeasured by the 24 bit ADC. The least signficant bit of the DAC is 5 picometers, and is clearly resolvable. Legacy capacitive sensors cannot measure anything at this level. Our competitors cannot produce similar data.