Household earthquake detection instrument

The invention provides a household earthquake detection instrument, which comprises an elastic copper sheet, a negative stiffness structure, a supporting beam and an earthquake pendulum. At least one end of the elastic copper sheet is fixed on the negative stiffness structure; the negative stiffness...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZOU FENG, DONG JIAOLIN, CHEN KAI, TAN FULIN, LIU RONG, WU ZIJIAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a household earthquake detection instrument, which comprises an elastic copper sheet, a negative stiffness structure, a supporting beam and an earthquake pendulum. At least one end of the elastic copper sheet is fixed on the negative stiffness structure; the negative stiffness structure comprises a horizontal spring and a photoelectric screw rod used for adjusting the stretching amount of the horizontal spring in the horizontal direction, one end of the horizontal spring is connected to the photoelectric screw rod, and the other end of the horizontal spring is connected to the elastic copper sheet, so that the stretching amount of the horizontal spring is converted into the negative stiffness of the elastic copper sheet; the supporting beam is used for connecting the elastic copper sheet with the earthquake pendulum; and the earthquake pendulum is located above the elastic copper sheet and obliquely placed, a set included angle is formed between the earthquake pendulum and the ground, t