Earthquake early warning device
A reminder device and earthquake signal technology, applied to instruments, alarms, etc., can solve the problems of wide range of earthquake damage, great harm to life and property, failure to effectively grasp the laws of earthquake occurrence and forecasting, etc., to reduce production difficulty and cost , high sensitivity and reliable performance
Inactive Publication Date: 2016-04-20
广西润格电子有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Earthquake is an irresistible natural disaster with a wide range of damage, great harm to life and property. So far, scientific knowledge has not effectively grasped the occurrence and forecasting laws of earthquakes
Method used
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Embodiment Construction
[0013] According to attached figure 1 The schematic diagram and description of the working principle of the circuit of the early-earthquake electronic warning device are shown, and the connection relationship between the components in each part of the circuit described in the summary of the invention, as well as the technical parameter requirements of the components and the circuit production described in the implementation mode The present invention can be realized by implementing the main points, and the related technologies of the present invention will be further described below in conjunction with the embodiments.
[0014] Technical parameters and selection requirements of components
[0015] IC1 is an operational amplifier, the model used is CA3140, which is an 8-pin dual-in-line DIP package. It uses a MOSFET as an input operational amplifier inside, with a very high input impedance of 1.5TΩ and a very low input current ( 10PA), suitable for weak signal amplification; ...
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The invention discloses an earthquake early-stage electronic reminding device. The earthquake early-stage electronic reminding device is characterized by comprising a 9V direct-current power supply, an earthquake signal monitoring and voltage comparison circuit and a level signal amplification and buzzer driving circuit. The earthquake signal monitoring and voltage comparison circuit consists of a monitoring probe JT, a resistor R1, a resistor R2, an electrolytic capacitor C1, an operational amplifier IC1, four switch diodes D1-D4 and a resistor R3, wherein the model of the operational amplifier IC1 is CA3140, and the model of the switch diodes D1-D4 is 1N4148. The level signal amplification and buzzer driving circuit consists of a resistor R4, an electrolytic capacitor C2, an NPN-type transistor VT1 and a buzzer HA. The earthquake early-stage electronic reminding device uses the operational amplifier with high input impedance as a core element, can rapidly monitor a first earthquake wave when an above-class-4 earthquake occurs at an early stage and can instantly start voice early warning once the monitoring probe is touched.
Description
technical field [0001] The invention belongs to the technical field of electronics and earthquake forecasting, and relates to an early earthquake electronic warning device. Background technique [0002] Earthquake takes place at night, and people are all resting in the room, and this is maximum to people's life hazard degree, makes people hard to guard against. If the earthquake can be achieved in the early stage of the earthquake, if more than ten seconds can be won, many people may pass by the disabled or the god of death. Earthquake is an irresistible natural disaster with a wide range of damage, great harm to life and property. So far, scientific knowledge has not effectively grasped the occurrence and forecasting laws of earthquakes. [0003] The early earthquake electronic reminder device of the present invention can monitor the first earthquake wave in a very short time in the early stage of an earthquake of magnitude 4 or above, and instantly start a sound warning t...
Claims
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IPC IPC(8): G08B21/10
Inventor 吴建堂
Owner 广西润格电子有限公司