Kathrin Maine

The patented ultrasonic motors work directly without intermediate elements such as spindles and gears, are reversal backlash due to their high rigidity and position very accurately. In combination with a linear encoder position resolution is 0.1 m, the bi-directional repeatability 0.4 m. So-called points of interest”can be this recover reliably and precisely hit. It benefits but also in high content screening”analysis technology, if many samples (E.g., tissue samples) should be scanned. Here is short settling times for a tiling”the recordings the good repeatability important.

Self-locking, therefore no thermal drift of the drive consists of a stator, containing the piezoceramic oscillator, and a runner known as rub rail, which attaches directly to the moving part of a slide. The Vibration profile of piezoelectric ceramics created the forward and backward movement of the drive, where the travel is theoretically unlimited. Due to the preloading of ceramics on the rub rail this is held normally at idle in their position. Unlike direct-drive electromagnetic linear, step – or DC motors the piezobasierte drive to need no energy, there is no heat; compared to electromagnetic drives, there is practically no thermal drift and the position is kept stable. Super resolution microscopy, in which a recording can take several minutes, benefits of it particularly. The controller on the microscope stage coordinated with an extensive software package allowed due to its trace memory”on a connected host PC representing the trajectory as a position time graph.

Thus, its control parameters can be perfectly to vote on the respective application. For positioning tasks in the direction of the optical axis, E.g. for batch recording, also very flat based Piezo-Z tables of the same manufacturer offered. They are available with a free aperture of 160 110 mm and 200 m hub, can be fit without an adapter on the cross table and control with the same controller. 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. The PI group international is represented with four offices in Germany and ten foreign sales and service offices. Contact: Kathrin Maine marketing consultant market & physics instruments (PI) GmbH & co.