Triboelectric device
First Claim
1. A triboelectric device comprising means for applying a polarizing voltage to a first material which is a polymer or dielectric organic substance, said means comprising a voltage source, a polarizing amplifier and electrodes which are not fixed to the first material, allowing relative rubbing displacement between the electrodes and the first material, wherein the electrodes are of the comb type.
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Abstract
A triboelectric device includes a voltage source, a polarizing amplifier, and electrodes to apply a polarizing voltage to a first material of the device. The electrodes are not fixed to the first material, allowing relative rubbing displacement between the electrodes and the first material. Preferably, a conductive second material, such as petrolatum, is provided between the first material and the electrodes. Such a device can have its properties change while in service. To accommodate this, the voltage source preferably provides an adjustable polarization voltage. The triboelectric device is useful as a transducer, and particularly useful as a hydrophone used in sonar antenna, as its mode type can be changed in the field during service to correct spurious signals or interferring noises.
122 Citations
22 Claims
- 1. A triboelectric device comprising means for applying a polarizing voltage to a first material which is a polymer or dielectric organic substance, said means comprising a voltage source, a polarizing amplifier and electrodes which are not fixed to the first material, allowing relative rubbing displacement between the electrodes and the first material, wherein the electrodes are of the comb type.
- 13. A triboelectric device comprising means for applying a polarizing voltage to a first material which is a polymer or dielectric organic substance, said means comprising a voltage source, a polarizing amplifier and electrodes which are not fixed to the first material, allowing relative rubbing displacement between the electrodes and the first material, wherein petrolatum is interposed between the electrodes and the first material.
Specification