Precision Without Position Sensor

Piezokristalliner phase slider with Picoactuator technology in the laser measurement technology used for adjusting optical path lengths phase shifter. This move optics in terms of wavelength, so in a range below one micrometer. Essential is that the adjustment will be fast and stable. For the new phase shifter S-303.BL replaced physics instruments (PI) classic Piezoelectric ceramic PZT actuators (of lead titanate lead zirconate) by Picoactuatoren of a crystalline, lead-free material. This Picoactuatoren is characterized by a particularly high linearity, so that the precision positioning in the unregulated operation is possible. With a travel of 0.3 micrometers, they reach an accuracy of 6 nanometers, which corresponds to a linearity 2%. Compared to classic Piezoceramics, Picoactuatoren but have a lower displacement.

Ideal applications are therefore, where it is highly dynamic, small travel and high precision requirements are required. The unregulated operation omitted in favor of system bandwidth and costs on the use of a position sensor. This will simplify the mechanical construction and electronic control, time does not apply. This is the S-303.BL a precise and yet dynamic drive for optics in terms of the wavelength of light. Physics instruments (PI) is known for the high quality of its products and occupies a leading position on the world market for precise positioning technique for many years. For 40 years, develops and manufactures PI standard and OEM products with piezo – or motor drives. In addition to three German plants, PI is represented worldwide with eight branches and a total of over 500 employees.