Panel assembly having variable transmissivity and structural rigidity
A system that utilizes a very thin arrangement of transparent sub panels containing embedded very small distributed electromagnet wires to control the distribution of very fine magneto-rheological fluid particles suspended in a very thin panel sandwiched between the electromagnet wire panels. The current applied to specific electromagnets may be used to control the amount of electromagnetic energy, such as visible light, that can be transmitted through the panel system. The system may also be used to increase or decrease the rigidity of the multi-panel structure as a function of current applied to the electromagnets.
1. A panel assembly that is transparent to a preselected form of radiation and that is configured to selectively vary the transmissivity of the preselected form of radiation through the panel assembly, the panel assembly comprising:
a first transparent sub panel including a plurality of generally parallel, spaced, first wires extending therethrough from a first edge to an opposite, second edge with at least an end of each first wire connected to an end of an adjacent first wire at one of the first edge or the second edge to form a plurality of U-shaped conductive elements, each U-shaped conductive element having an electromagnetic coil wound thereabout at or about the first edge or the second edge of the first transparent sub panel to form a “horseshoe” electromagnet at each of the connected first wires;
a second transparent sub panel including a plurality of generally parallel, spaced, second wires extending therethrough from a third edge to an opposite, fourth edge with at least an end of each second wire connected to an end of an adjacent second wire at one of the third edge or the fourth edge to form a second plurality of U-shaped conductive elements, each U-shaped conductive element of the second plurality having an electromagnetic coil wound thereabout at or about the third edge or the fourth edge of the second transparent sub panel to form a “horseshoe” electromagnet at each of the connected second wires; and
a magneto-rheological fluid reservoir sandwiched between the first transparent sub panel and the second transparent panel, the reservoir being structured to house a volume of a magneto-rheological fluid.
2. The panel assembly of claim 1 , further comprising a volume of magneto-rheological fluid disposed in the reservoir, wherein the magneto-rheological fluid comprises a quantity of magnetic particles.
3. The panel assembly of claim 2 , wherein the reservoir comprises a reservoir extension which extends from the reservoir beyond one of the first, second, third or fourth edges of the first and second sub panels, and wherein the magnetic particles are disposed in the reservoir extension when none of the electromagnetic coils are energized.
4. The panel assembly of claim 2 , wherein the magnetic particles comprise iron.
5. The panel assembly of claim 2 , wherein the magneto-rheological fluid comprises an alcohol.
6. The panel assembly of claim 2 , wherein a concentration of the magnetic particles in a portion of the panel assembly increases the strength of that portion.
7. The panel assembly of claim 1 , wherein the first wires and the second wires extend at an angle of approximately 90° with respect to each other.
8. The panel assembly of claim 1 , further comprising a control system structured to separately control a supply of electrical current supplied to each of the respective electromagnetic coils.
9. The panel assembly of claim 8 , wherein the preselected form of radiation is electromagnetic radiation.
10. The panel assembly of claim 9 , further comprising an electromagnetic radiation detector structured to track a path of the electromagnetic radiation and supply the path to the control system, and to selectively activate the electromagnetic coils which correspond to a location in the panel assembly which intersects with the path.
11. The panel assembly of claim 10 , wherein the electromagnetic radiation detector is one or more photo sensors.
12. The panel assembly of claim 11 , wherein the panel assembly has an inside surface and an outside surface and the photo sensors are supported adjacent the inside surface.
13. The panel assembly of claim 8 , wherein the preselected form of radiation comprises thermal neutrons.
14. The panel assembly of claim 8 , wherein the preselected form of radiation comprises X-rays.
15. The panel assembly of claim 1 , wherein the first transparent sub panel and the second transparent sub panel are each formed from a clear glass or plastic.
16. The panel assembly of claim 1 , wherein the first wires and the second wires, respectively, are embedded within the first transparent panel and the second transparent panel.
17. The panel assembly of claim 1 , wherein the first wires and the second wires, respectively, are attached to the first transparent panel and the second transparent panel.