Other means of recharging (e.g., solar, wind driven, etc.) were all found incapable of meeting the expected environmental conditions of these units. Second Embodiment A second embodiment was designed to minimize the expense associated with a solid rare earth or Alnico moving magnet 2. It was found that by attaching inexpensive ceramic magnets of the same diameter to the ends of more powerful Alnico or Rare earth magnets we could achieve the desired rod shape with greatly reduced costs. Moving magnet 90 very close to magnet 93 and then away would create about 20 volts out of coil 91 and about 8 volts out of coil 92. The unit was thus producing over 15 milliwatts of power each time magnet 90 was brought close or moved away from magnet 93. More study will be needed to determine how much power would be generated with normal walking, but the peak voltage values make recovery of the power from bridge rectifiers an easy task.
Many low profile coil designs are possible. Very low cost end magnets are thereby possible while retaining essentially permanent magnetization. It should also retain its magnetic strength over the life of the unit, or to state it another way, its retention of magnetic strength essentially determines the life of the unit. End magnets are in polar opposition to magnet 2 so as to suspend magnet 2 by repulsive magnetic force. The repulsive force of magnets 90 and 93 provide the springless means to return the unit to its non-stressed state (i.e., the state of having no force applied to the top of the unit. End magnets 3 and 4 were inexpensive ceramic disc magnets of a diameter of 1 inch and a thickness of 0.25 inch.
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End magnets 3 and 4 were 1-inch diameter, 0.25-inch thick inexpensive ceramic magnets with a small (0.25 inch diameter by 0.125 thick) Neodymium-Iron-Boron (NdFeB) magnets attached to the outside to provide permanent magnetization. For example, two 1/4 inch thick coils could be separated by 1/4 inches for every 1 inch of tube length. 5C. This saves a significant step in manufacture because the short circuit required between coil end 8 and coil end 10 is automatically created when both coils 5 and 6 are created from the same wire.
That is, when measuring the signal from the outside coil wire of each coil as plus and the inside coil wire of each as negative (or vice versa). The flashlight would therefore always be fully charged when needed. Que hacer dolor de espalda . Units of this type could be used for sensing weight changes (when used as a platform or base of the object) of some object, for detecting removal of an object (e.g., museum artifact), or simply for generating power when the unit is place in a situation where repetitive forces are often present.
8. In the preferred embodiment, each coil is made from the same wire and wound in opposite directions from the one adjacent to it (e.g., cw, ccw) so the wires will be properly phased for a maximum output. Coil outside diameter was about 0.75 inches. Holes drilled in the tubes along its length were also used on some models to minimize this damping effect, although, coil placement will tend to close off some of these breathing holes. Available capacitors, however, are available which could have quadrupled these times and still fit comfortably in housing 40. Another useful feature might be a simple potentiometer in the bias network to control light intensity.
13A. The housing tube 40 had a fitted end cap termination 41 on one end, and the other end the termination 48 was white GE Silicone II Bathtub and Tile sealant. Persons skilled in the art will recognize many other variations of the present invention, the scope of which is to be determined by the following claims. 1 is a drawing of an embodiment describing some of the features of the present invention. FIG. 12 shows a block drawing of a preferred embodiment designed for use on rail cars as a part of a satellite communication system. FIG. 10 shows an embodiment designed to reduce forces between the moving magnet and wall of a confining tube.
- FIG. 27 illustrates some aspects of a propulsion embodiment
- F03B17/00-Other machines or engines
- As a function of the separation of the first and second areas 6, 8 from each other; and
- En caso de que quieras intentar la variante con peso, inclúyelo solo de forma progresiva
- Cómo extraer el vello enquistado
- This disclosure describes inventive aspects, including at least the following
- Anemia normocítica
- Intentar resolver un problema complejo
FIG. Dolor muscular hombro izquierdo . 7 shows an embodiment with multiple moving magnets. By using weak end magnets 3 and 4 and/or a long tube 1 to reduce the stabilizing force end magnets 3 and 4 induce on moving magnet 2, generating unit 24 is made even more sensitive. The magnet shapes required for this application need to have a length longer than their diameter to prevent the magnet from turning or flipping over within the tube. Finally, the second embodiment utilizes a longer tube 1. The length of tube 1 can directly affect the sensitivity of the unit.
If greater illumination is required, however, one may want to use incandescent bulbs of the type used in conventional flashlights. Conventional bulbs have filaments which can break if the flashlight is dropped, and will wear out over time. These bulbs take about 0.5 amperes of current. To make these beautiful, but fragile coils easier to work with I soldered larger wires to the ends of the coils and encased each of them in clear fiberglass casting resin to form a solid durable unit. These units are expected to deliver about 10 milliwatts of electrical power under normal operating conditions. Without movement the capacitor 78 provides about 10 seconds of bright illumination and about 30 seconds of faint illumination. Without the notched ends, or breathing holes in the tube, the motion of the moving magnet would become damped from lack of air flow, like the piston in a cylinder.
The holding power of the central magnet firmly binds the sandwich in place without adhesive, although, adhesive could be used if desired. 6. Housing 30 is magnetized by two magnets 20 and 25 so that the ends of housing 30 are in polar opposition to moving magnet 2. The coils of each generating unit 24 are wound clockwise and counter-clockwise as shown in FIGS. The whole unit fit comfortably within the housing of the original flashlight with room for extra wire lengths and some cushioning material. The entire unit is placed inside a steel pipe 32, and hermetically sealed with only two wires 33 and 34 protruding from the unit. Reduction of Air Damping The moving magnet can be damped by air pressure in either side of it within the tube, if it has too little clearance with the inside of the tube.
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If magnets are used which have relatively large clearances between their diameter and the inside diameter of the tube, air will be free to move easily around the magnet. They can be made the same size as the inside diameter of the tube, or slightly smaller, and cemented in place, inside the tube at the ends. The power generator used in this model produces about 6 milliamperes of charging current with moderate movement.
40 wire. Dolor lumbar y ano . The coils are wound in opposite directions, and they are each about 0.75 inches long. They were glued in place at each end of tube 1 by the use of a hot glue gun. The negative of the battery terminal was attached to the negative DC output of the power generator 42 unit, and also to the spring in the screw-on base of the flashlight. 61-2541) as the basic structure of the flashlight in my initial embodiment, but instead of batteries, I replaced that battery area with a combination of the small battery and one of my power generator units. With the flashlight kept in some location where mechanical movement was nominally present, such as on a small boat, in an automobile glove-compartment or trunk, in a hiker’s backpack, or mounted on a bicycle; the unit would constantly be supplying power to the energy storage device.
In FIG. 13B energy storage device 78 is now a rechargeable battery. FIG. 13A would again illustrate this concept, where bulb 49 is now an incandescent bulb, and electronics package 46 is now simplified. The batteries in turn provide electric power periodically for communication via satellite between an electronics package on board the rail car and a monitoring ground station. As a horizontal force is applied through the pivot point (which is mounted to the body of a rail car or other horizontally moving base), it causes a rocking motion of the plate due to the inertia of the vertically mounted unit. All other aspects of the third embodiment are identical to those aspects described in the second embodiment.