Archive for Апрель 21st, 2009

Electrostatic actuator with fault tolerant electrode structure

Дата: Апрель 21st, 2009 Автор:
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  • Тип контента: Патент
  • Номер документа: 4337
  • Название документа: Electrostatic actuator with fault tolerant electrode structure
  • Номер (DOI, IBSN, Патент): US007521836B2
  • Изобретатель/автор: Horst R.W.
  • Правопреемник/учебное заведение: Tibion Corporation, Moffett Field, CA, USA
  • Дата публикации документа: 2009-04-21
  • Страна опубликовавшая документ: США
  • Язык документа: Английский
  • Наименование изделия: Не заполнено
  • Источник: http://ip.com/patent/US7521836
  • Вложения: Да
  • Аналитик: Дмитрий Соловьев

A high-power electrostatic actuator comprising rotor and stator layers with fault-tolerant electrode structures, a housing to contain the electrodes and dielectric fluid, and electronic circuitry driving a plurality of high-voltage phases. The actuator is constructed from multiple rotor and stator films separated by spacing elements. The electrode structure provides self-alignment for precise assembly. The actuator assembly includes built-in fine-position sensors to allow optimal timing in powering phases, and a coarse position sensor for feedback control. The electrode structure has a large region of linear force to provide low torque-ripple allowing simple high/low voltage pulsing instead of analog high voltage waveforms. Single or double sided flexible circuit manufacturing techniques are used to fabricate the rotor and stator films at low cost.

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