Inertial haptic actuators having a cantilevered beam and a smart material
A haptic actuator comprising a base and a haptic transducer at least partially suspended by the base. The haptic transducer comprises a substrate and a smart material operably connected to the substrate. The smart material has resonance in response to an electrical signal having a determined frequency, and the resonance causes the haptic transducer to vibrate and deliver a haptic effect.
1. A haptic actuator comprising:
a base; and
a haptic transducer at least partially suspended by the base, the haptic transducer having a substrate and a smart material component supported by the substrate;
the smart material component having smart material, the smart material being encapsulated, the smart material including a plurality of elongated macro fibers; and
the haptic transducer having resonance in response to an electrical signal having a determined frequency, the resonance causing the haptic transducer to vibrate and deliver a haptic effect.
2. The haptic actuator of claim 1 wherein the smart material is selected from the group consisting essentially of: a piezoelectric material, an electro active polymer, and combinations thereof.
3. The haptic actuator of claim 2 wherein the smart material resonates upon application of an electrical signal having a frequency in the range of about 60 Hz to about 250 Hz.
4. The haptic actuator of claim 2 wherein the smart material resonates upon application of an electrical signal having an amplitude in the range of about 60 Volts to 100 Volts.
5. The haptic actuator of claim 2 wherein the base is positioned proximal to an end portion of the substrate and the substrate forms a cantilever.
6. The haptic actuator of claim 2 wherein the base comprises first and second bases, and the substrate forms a cantilever bridge extending between the first and second bases.
7. The haptic actuator of claim 6 wherein at least one of the first and second bases each comprise a spring.
8. The haptic actuator of claim 1 further comprising a mass operably connected to the substrate.
9. A haptic actuator comprising:
a base; and
a haptic transducer at least Partially suspended by the base, the haptic transducer having a substrate and a smart material component supported by the substrate;
the smart material component having smart material, the smart material being encapsulated and selected from the group consisting essentially of: a piezoelectric material, an electro active polymer, and combinations thereof;
the haptic transducer having resonance in response to an electrical signal having a determined frequency, the resonance causing the haptic transducer to vibrate and deliver a haptic effect;
the substrate having an elongated member having first and second end portions and a center portion extending between the first and second end portions; and
the base being positioned proximal to the center potion.
10. A haptic actuator comprising:
a base; and
a haptic transducer at least partially suspended by the base, the haptic transducer having a substrate and a smart material component supported by the substrate;
the smart material component having smart material, the smart material being encapsulated and selected from the group consisting essentially of: a piezoelectric material, an electro active polymer, and combinations thereof;
the haptic transducer having resonance in response to an electrical signal having a determined frequency, the resonance causing the haptic transducer to vibrate and deliver a haptic effect;
wherein at least one of the first and second bases comprise a smart gel.
11. A haptic actuator comprising:
a base; and
a haptic transducer at least partially suspended by the base, the haptic transducer having a substrate and a smart material component supported by the substrate;
the smart material component having smart material, the smart material being encapsulated and selected from the group consisting essentially of: a piezoelectric material, an electro active polymer, and combinations thereof;
the haptic transducer having resonance in response to an electrical signal having a determined frequency, the resonance causing the haptic transducer to vibrate and deliver a haptic effect;
wherein at least one of the first and second bases comprises a fluid having a viscosity that selectively changes in the presence of a magnetic field.
12. The haptic actuator of claim 11 wherein the fluid is selected from the group consisting essentially of a magnetorheological fluid, a ferrofluid, or combinations thereof.
13. A haptic actuator comprising:
a base; and
a haptic transducer at least partially suspended by the base, the haptic transducer having a substrate and a smart material component supported by the substrate;
the smart material component having smart material, the smart material being encapsulated and selected from the group consisting essentially of: a piezoelectric material, an electro active polymer, and combinations thereof;
the haptic transducer having resonance in response to an electrical signal having a determined frequency, the resonance causing the haptic transducer to vibrate and deliver a haptic effect;
wherein the at least one of the bases comprises a solenoid, the solenoid having an axis arranged at an angle to the elongated member.