JP2013046404A - Microphone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sound quality of a device for converting sound into an electrical signal, such as a microphone, using inexpensive material.SOLUTION: A certain part of feathers of birds, called a true feather, has high sensitivity to air vibration. This high sensitivity is utilized in a device, such as a microphone, in which the true feather is contacted with a vibrator of the device so that vibration, such as sound, applied to the true feather can be transmitted to a diaphragm, thereby achieving good sound quality.

Description

  The present invention relates to a device that converts a change in pressure in a medium such as a microphone, such as a gas, a liquid, or a solid, particularly a sound wave that is a minute change in air pressure into an electrical signal.

  Many devices that convert sound waves into electrical signals have a plate-like portion called a diaphragm. Sound waves appear as minute changes in atmospheric pressure in the air, and the minute changes in atmospheric pressure are vibrations that are applied to the diaphragm to vibrate. The vibrations of the diaphragm are sensed and converted into electrical signals. Depending on the method of the microphone, the diaphragm is not necessarily a plate-like object, and the material is various, but its function is basically the same in that the vibration is propagated to the part and then converted into an electric signal.

    However, materials that have been used for diaphragms in the past often use materials that can be easily converted into electrical signals, and these are generally responsive to sound waves, which are necessary to detect fine changes in sound waves. It is scarce. For this reason, the manufacture of a device that accurately converts sound wave changes into electrical signals requires many technically precise processes and difficult-to-handle parts in order to eliminate the lack of reactivity.

    Further, in recent years, due to the rising prices of metals and the like that are necessary for the manufacture of microphones and the like, manufacturing has become more expensive.

    The present invention uses an inexpensive and easy-to-handle material, reduces the amount of semiconductor components used and reduces manufacturing costs, and more accurately changes the sound wave due to the high reactivity of the material to sound waves. The object is to provide a device that can be converted into an electrical signal.

    The present invention uses a portion called a bird's true feather as a component of the diaphragm. In addition, if it is birds, the kind of bird is not ask | required. Moreover, the kind is not ask | required if it is a true feather.

    Bird wings are highly responsive to vibrations in the air, such as sound waves.

    An appropriate number of feathers are brought into contact with the diaphragm of the microphone. This makes it possible to detect and convert finer changes in sound waves without using difficult parts and precise processes for the diaphragm and parts that convert to electrical signals. .

    The blade of the feather is brought into contact with the diaphragm of the device so that the vibration of the feather is sufficiently transmitted, and the vibration in the air applied to the valve is transferred from the blade shaft to the blade and from the blade. Transmit to the diaphragm.

    Alternatively, a material that causes electricity, such as metal, is attached to an appropriate number of true feathers so that vibration applied to the true feathers can be more directly converted into an electrical signal, and this is used as a diaphragm.

    As a result, vibrations such as sound waves applied to the diaphragm are more accurately converted into electrical signals, and a device that reproduces minute sound changes more faithfully when reconverted from electrical signals to sound is inexpensive. And can be manufactured more easily.

FIG. It is a perspective view of a microphone using a piezoelectric element and a crow's true feather as an example of the present invention.

First embodiment

  The piezoelectric plate (5) of the piezoelectric element (4) is a vibration plate, and the crow's true feather pattern (3) is brought into contact with and fixed to the piezoelectric plate (5) of the piezoelectric element (4), and is attached to the feather valve (2). The applied sound wave is transmitted to the piezoelectric plate (5) through the wing shaft (1) and the wing pattern (3) which is the tip thereof, and is converted into an electric signal using the piezoelectric element (4).

Second embodiment

  The conversion of a sound wave into an electrical signal by a microphone means that a change in pressure in the air is converted into electrical energy using a certain device. Thus, the present invention can be used as a wind power generator that converts wind power into electrical energy. The present invention is more responsive to the pressure difference in the air than the conventional method of rotating a turbine using blades, and can generate power even if the wind force is weak. In addition, it is excellent in overall power generation efficiency in that it is small and inexpensive and can be easily manufactured.

1, feather shaft 2, feather valve 3, feather handle 4, piezoelectric element 5, piezoelectric plate

Claims (1)

Using a bird's true feather, bring the true feather's handle into contact with the diaphragm sufficiently to transmit the vibration, and the vibration applied to the valve is vibrated from the blade shaft through the blade handle at the tip of the blade shaft. A microphone that transmits to a plate and converts the vibration of the diaphragm into an electrical signal.

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