Magnetic suspension earthquake alarm
A magnetic levitation and alarm technology, applied to alarms, instruments, etc., can solve the problems of power consumption, high price, discontinuous alarm signal, etc., and achieve the effect of simple structure and low cost
Inactive Publication Date: 2012-12-19
池晓春
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Problems solved by technology
[0005] 2) From the perspective of seismic components, commercially available sensors are mostly used, such as acceleration sensors, piezoelectric sensors and fiber grating sensors. , the detection circuit has a complex structure, is expensive, and is connected to the power supply in real-time monitoring, consuming a certain amount of electric energy;
[0008] To sum up, there are many types of earthquake alarms developed at present, with different structures, and they all have warning functions for earthquakes, but there are problems such as complex structures, discontinuous alarm signals, untimely alarms, and power consumption during standby. , so far, despite the frequent occurrence of earthquakes, there are very few reports on the actual effect of numerous alarms
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[0040] 1) Maglev alarm switch
[0041] exist figure 1 In the magnetic levitation alarm switch shown, the length of the non-magnetic tube is 14cm, the diameter is 1cm, the diameter of the built-in magnetic levitation ball is 0.8cm, and the length of the magnetic rod placed opposite it is 2cm, and the outer diameter is 1cm. The distance between the normally open contacts placed in the insulating tube above the magnetic levitation ball is 0.3cm.
[0042] The winding wire wound on the non-magnetic tube is 500 turns and the wire diameter is 0.03cm. When a 4.5V DC voltage is applied at both ends of the winding, the reverse magnetic field generated in the winding wire makes the magnetic levitation ball detach from the contact and reset.
[0043] 2) Multifunctional earthquake alarm circuit
[0044] In addition to the above-mentioned magnetic levitation alarm switch, the parameters of the buzzer, LED light and battery pack are:
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The invention discloses a magnetic suspension earthquake alarm and relates to the fields of electromagnetics, geophysics and natural disaster protection. Through designing an earthquake alarm switch based on a magnetic suspension effect, constructing a multifunctional earthquake alarm circuit consisting of a buzzer, an LED lamp and a series-wound direct current power supply taking a magnetic suspension earthquake alarm switch as a core component, adjusting the equilibrium position of a magnetic suspension ball to determine the earthquake alarm magnitude, and also taking some other technical measures, the longitudinal wave of the earthquake can be detected within a few minutes before the destructive earthquake comes up, and the buzzer, the LED lamp and other acousto-optic elements are usedfor acoustic, photoelectric or acousto-photoelectric linkage alarming in an uninterrupted and manually controllable way, so that an earthquake alarm owner can escape from the earthquake or call for help in time even if the power grid fails, and unnecessary casualties can be avoided. The invention has the advantages of portability and small size (weighs about 250g), and is suitable for household use and earthquake alarm networks. The invention can be used in case of a power grid failure and does not consume power in normal operation.
Description
Technical field [0001] The invention relates to the fields of electromagnetism, geophysics and natural disaster prevention. Background technique [0002] The magnetic levitation alarm device of the present invention is a longitudinal wave (S wave) alarm device for earthquakes based on electromagnetic effects, which can use sound to alarm in advance within a few seconds before the arrival of a destructive earthquake (shear wave, ie P wave), and escape with the aid of lighting . Once the person holding the device is buried by a collapsed building, he can also use the sound to call for help from the outside, so as to be rescued in time. [0003] In recent years, frequent earthquakes and huge destructive power have aroused the attention of Chinese people, especially related workers. In response to this natural disaster, suggestions have been offered one after another, and the earthquake alarm is the product under this background. Open the patent database, you can find that th...
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IPC IPC(8): G08B21/10
Inventor 池晓春杨嘉祥
Owner 池晓春