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- Comb_drive abstract "Comb-drives are capacitive actuators, often used as linear actuators that utilize electrostatic forces that act between two electrically conductive combs. Comb drive actuators typically operate at the micro- or nanometer scale and are generally manufactured by bulk micromachining or surface micromachining a silicon wafer substrate.The attractive electrostatic forces are created when a voltage is applied between the static and moving combs causing them to be drawn together. The force developed by the actuator is proportional to the change in capacitance between the two combs, increasing with driving voltage, the number of comb teeth, and the gap between the teeth. The combs are arranged so that they never touch (because then there would be no voltage difference). Typically the teeth are arranged so that they can slide past one another until each tooth occupies the slot in the opposite comb.Restoring springs, levers, and crankshafts can be added if the motor's linear operation is to be converted to rotation or other motions. The force can be derived by first starting with the energy stored in a capacitor and then differentiating in the direction of the force. The energy in a capacitor is given by:Using the capacitance for a parallel plate capacitor, the force is: = applied electric potential, = relative permitivity of dielectric, = permitivity of free space (8.85 pF/m),= number of pairs of electrodes, = thickness in the out of plane direction of the electrodes, = gap between electrodes".
- Comb_drive wikiPageExternalLink 004.
- Comb_drive wikiPageID "2092835".
- Comb_drive wikiPageRevisionID "567031686".
- Comb_drive hasPhotoCollection Comb_drive.
- Comb_drive subject Category:Actuators.
- Comb_drive subject Category:Microtechnology.
- Comb_drive subject Category:Nanoelectronics.
- Comb_drive type Actuator102678384.
- Comb_drive type Actuators.
- Comb_drive type Artifact100021939.
- Comb_drive type Device103183080.
- Comb_drive type Instrumentality103575240.
- Comb_drive type Mechanism103738472.
- Comb_drive type Object100002684.
- Comb_drive type PhysicalEntity100001930.
- Comb_drive type Whole100003553.
- Comb_drive comment "Comb-drives are capacitive actuators, often used as linear actuators that utilize electrostatic forces that act between two electrically conductive combs. Comb drive actuators typically operate at the micro- or nanometer scale and are generally manufactured by bulk micromachining or surface micromachining a silicon wafer substrate.The attractive electrostatic forces are created when a voltage is applied between the static and moving combs causing them to be drawn together.".
- Comb_drive label "Comb drive".
- Comb_drive sameAs m.06lmhy.
- Comb_drive sameAs Q5150581.
- Comb_drive sameAs Q5150581.
- Comb_drive sameAs Comb_drive.
- Comb_drive wasDerivedFrom Comb_drive?oldid=567031686.
- Comb_drive isPrimaryTopicOf Comb_drive.