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vibration detector

A technology of detectors and alarms, which is applied in the field of sensors, can solve the problems of high detection sensitivity, high energy consumption, and low energy consumption, and achieve the effects of improving sensitivity, low energy consumption, and solving hysteresis

Inactive Publication Date: 2018-10-19
CHENGDU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a vibration detector with high detection sensitivity and low energy consumption, so as to solve the technical problems of the vibration detection of the existing vibration detector with a certain hysteresis and high energy consumption

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Embodiment Construction

[0030] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are for reference only The orientation of the attached schema. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0031] In the figures, structurally similar units are denoted by the same reference numerals.

[0032] Please refer to figure 1 and figure 2 , figure 1 It is a schematic structural diagram of the detection box of a preferred embodiment of the vibration detector of the present invention; figure 2 It is a schematic diagram of the circuit structure of the detection circuit of the preferred embodiment of the vibration detector of the present invention...

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Abstract

The embodiment of the invention provides a vibration detector. The vibration detector comprises a detection box body and a detection circuit connected with the detection box body. A first inertia piece, a second inertia piece, a first fixing piece and a second fixing piece are arranged in the detection box body. The first inertia piece is used for keeping inertia staticity when the detection box body makes non-upward movement, the second inertia piece is used for keeping inertia staticity when the detection box body makes upward movement, the first fixing piece is used for making contact with the first inertia piece when the detection box body makes non-upward movement, and the second fixing piece is used for making contact with the second inertia piece when the detection box body makes upward movement. According to the vibration detector, the first inertia piece and the second inertia piece are used for triggering a detection circuit, and the vibration detection sensivity is improved; when the detection circuit is not triggered, the entire detection circuit is in a low energy consumption state, and thus the energy consumption of the vibration detector is low.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a vibration detector. Background technique [0002] With the development of science and technology, various vibration sensors have appeared in various sensing fields. Such as eddy current vibration sensor, inductive vibration sensor, capacitive vibration sensor, piezoelectric vibration sensor and resistance strain vibration sensor. [0003] But the vibration sensor mentioned above has the following disadvantages: [0004] 1. Vibration sensors are all passive detectors. For example, piezoelectric crystal vibration detectors use piezoelectric ceramic sheets, with metal balls designed with cavities on both sides, and use small balls to roll and contact piezoelectric ceramic sheets. When vibrating, the small ball generates a pulsating voltage to the pressure change of the piezoelectric ceramic sheet, thereby realizing vibration induction. During the detection, the vibration is detected afte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H11/06
Inventor 廖贤张吉云
Owner CHENGDU UNIV