Scalable piezoelectric linear actuator
OwnerSantosh Kumar BEHERAinventor
Life of this patent
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Abstract
Disclosed is a scalable piezoelectric linear actuator. The linear actuator includes a central rod and one or more bending modules connected to the central rod. Each of the one or more bending modules includes one or more bending actuators. Each of the one or more bending actuators includes at least two layers of bending elements. Further, each of the one or more bending actuators incudes a metallic layer disposed between each of the at least two layers of bending elements. Further, each of the one or more bending actuators includes an insulating layer disposed on at least one of the at least two layers of bending elements. Further, each of the one or more bending actuators includes a sensing element disposed on the insulating layer.
Claims20
A linear actuator, comprising:
- a central rod;
- and
- one or more bending modules connected to the central rod, each of the one or more bending modules comprising one or more bending actuators, each of the one or more bending actuators comprising:
- at least two layers of bending elements;
- a metallic layer disposed between each of the at least two layers of bending elements;
- an insulating layer disposed on at least one of the at least two layers of bending elements;
- and
- a sensing element disposed on the insulating layer.
A linear actuator, comprising:
- a central rod;
- and
- one or more bending modules coaxially disposed about and connected to the central rod, each of the one or more bending modules comprising one or more bending actuators, each of the one or more bending actuators comprising:
- a first piezoelectric bending element;
- a second piezoelectric bending element;
- and
- a metallic layer disposed between the first piezoelectric bending element and the second piezoelectric bending element, the metallic layer being electrically coupled to the first piezoelectric bending element and the second piezoelectric bending element.
A linear actuator, comprising:
- a central rod;
- and
- one or more bending modules connected to the central rod, each of the one or more bending modules comprising one or more bending actuators, each of the one or more bending actuators comprising:
- one or more layers of piezoelectric bending elements constructed of PZT-5H material;
- an insulating layer disposed on at least one of the one or more layers of piezoelectric bending elements, the insulating layer composed of a polyimide material;
- and
- a sensing element disposed on the insulating layer and constructed of one or more of polyvinylidene fluoride and polyvinylidene difluoride (PVDF) material.
Dependencies are inferred from the claim text.