摘要:
The present invention provides electroactive polymer transducers configured for surface mode deformation to provide thickness mode actuation. The inventive transducers may find use in various applications, including but not limited to haptic feedback for user interface devices (e.g., key buttons, key pads, touch pads, touch screens, touch plates, touch sensors, etc.), fluid movement and control mechanism such as pumps and valves, breaking and clutch mechanisms, power generation, sensing, etc.
摘要:
Disclosed generators include one or more transducers that use electroactive polymer films to convert mechanical energy to electrical energy. The generators may include one or more transmission mechanisms that transfer a portion of an unused environmental energy source to the one or more transducers located in the generators. The energy received by the transducers may be converted to electrical energy by the transducers in conjunction with conditioning electronics located within the generator.
摘要:
The invention is directed towards an electronic device, comprising a light source. The electronic device also comprises an element which is made of electro active polymer. The electro active polymer element comprises a set of electrodes. Further, the electro active polymer element is arranged to adjust its volume when a voltage is supplied to the set of electrodes. The adjustment in volume provides an adjustment in luminous transmittance of the electro active polymer element.
摘要:
Electroactive polymer transducers are disclosed. They are biased in a manner that provides for increased force and/or stroke output, thereby offering improved work potential and power output capacity. The biasing may offer additional or alternate functional advantage in terms of matching transducer performance with a given application such as a normally-closed valve. The improved biasing (including increased output biasing) may utilize negative spring rate biasing and/or a combination of negative or zero-rate biasing with positive rate biasing to achieve the desired ends.
摘要:
An expandable medical balloon (52) having at least one static state, at least one expanded state, and at least one deflated state, the expandable medical balloon including at least one active region (10), the at least one active region including electroactive polymer.
摘要:
Disclosed is a polymer actuator comprising a compact (1) composed of a conductive powder containing a conductive polymer and a dopant, an ion supplier (5), a working electrode (2) and a counter electrode (6). The polymer actuator contracts or expands when a voltage is applied between the working electrode (2) and the counter electrode (6).
摘要:
The present invention relates to transducers (100), their use and fabrication. The transducers (100) convert between mechanical and electrical energy. Some transducers (100) of the present invention include a pre-strained polymer (102). The pre-strain improves the conversion between electrical and mechanical energy. The present invention also relates to devices including an electroactive polymer (102) to convert between electrical and mechanical energy. The present invention further relates to compliant electrodes (104, 106) that conform to the shape of a polymer (102) included in a transducer (100). The present invention provides methods for fabricating electromechanical devices including one or more electroactive polymers.