How HASEL actuators work

Electrically-controlled soft linear actuator

The basic structure of HASEL actuators are three main components:

  1. A flexible polymer shell formed into a closed pouch

  2. An insulating liquid contained in the closed pouch

  3. Flexible electrodes covering a portion of the pouch.

 

When a high voltage is applied to the electrodes, electrostatic forces cause the electrodes to zip together, which pressurizes the fluid and locally displaces it within the pouch, causing shape change in the soft hydraulic structure. The type of motion produced can be tuned, depending on the materials used, the geometry of the electrodes, and the pouch. 

Soft, muscle-like performance

Click above to read our publication in 

Science about HASEL actuator technology.

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