Motion control and piezo systems expert PI (Physik Instrumente) introduces a new robust OEM walking motor drive, the N-331, with its configuration rooted in existing patented piezo actuator technology and a patented piezo stepping motion principle design. Based on the application of historically successful technology, the new design it is suitable for use in high-end applications that require extreme precision and durability.
与传统的电磁电动机不同，压电电动机不产生磁场，也不是受磁场或电场的影响 - 从电子束光刻到MRI技术的应用中有利的特性。
When large optics, detectors or camera set-ups in industrial applications must be positioned with nanometer precision, it can be beneficial to cut the actuator power once the fine positioning process is complete. If a motor or actuator is dependent on a continuous current draw to hold a position, heat dissipation, electromagnetic fields and thermal effects may have negative influences on the performance of the system. PICMAWalk motors are self-clamping, i.e. at rest or in steady state mode, they automatically hold the position without any need for power.
PI’s PICMAWalk piezo linear motor uses 8 PICMA piezo actuators arranged in a V-shape similar to a classical V8 engine to achieve high push/pull and holding forces along with nanometer precision. The space-tested PICMA actuators are highly reliable, providing 60N (13lbs) power-off holding force and 50N (11 lbs) push/pull force. The maximum velocity is specified at 15mm/sec (0.6 inch/sec) and loads up to 5kg (11lbs) can be positioned with nanometer precision.
Open and closed-loop designs:该单元可提供3个标准行程，在打开和闭环配置中的25至100毫米。闭环模型采用具有纳米分辨率的高精度增量编码器。计算的压电 - 机械分辨率优于1/10纳米。
For maximum precision and reliability, the piezo actuators are integrated in a solid-state flexure guiding system, free of stiction and friction. Flexure elements combine high stiffness and load capacity. They do not require maintenance or lubricants, are 100% vacuum compatible, function in a wide temperature range, and are intrinsically wear-free.
Standard and custom:除了标准型号外，可提供OEM的定制设计，通过模块化设计促进。
应用程序:光学，显微镜，自动化技术，成像技术，医学工程。有关更多信息，请访问pi-usa.us..
Filed Under:线性运动Tips,设计世界文章,线性运动•幻灯片,Motors (linear)
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