Thunder alarm instrument
A technology of alarm instrument and lightning, which is applied in the field of lightning alarm instrument, can solve the problems of small action range, complex structure, and regular maintenance of the rotary electric field instrument, and achieve the effects of low power consumption, large monitoring range, and convenient operation and maintenance
Active Publication Date: 2011-11-09
航天新气象科技有限公司
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Problems solved by technology
[0004] In order to overcome the disadvantages of the rotating electric field meter for monitoring the electrostatic effect of lightning, such as small range of action (measurement point radius 8-9km), relatively complex structure, large power consumption, high price, and the need for regular maintenance
Method used
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Embodiment Construction
[0040] The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.
[0041] The lightning warning instrument of present embodiment, as figure 2 As shown, it includes: an electric field sensor 1 , a lightning signal processing circuit, a probe, a base 12 and a tubular support 10 .
[0042] The electric field sensor 1 adopts a flat plate structure, is placed horizontally above the probe, and is connected to the lightning signal processing circuit through the signal introduction part 5; Insulated from the shell; the insulator 3 is nested and fixed at the center of the shell cover through the fixing nut 4, and the lightning signal processing circuit boards 6 and 7 are packaged in the probe shell.
[0043]The probe includes: a cylindrical shell 8 and a shell cover 2 with a central hole; the shell cover 2 is sleeved and fixed on the shell 8 .
[0044] One end of the tubular bracket 10 is fixed to the probe through th...
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The invention discloses a thunder alarm instrument, comprising an electric-field sensor, a thunder signal process circuit and an alarm instrument; the electric-field sensor senses to a time-varying electromagnetic filed caused by lightening during the activity of thunder to generate time-varying current, and sends the time-varying current to the thunder signal process circuit; the thunder signal process circuit processes the input time-varying current signal, and finally coverts the time-varying current signal into a digital signal, and analyzes and judges the value and numerical density of the digital signal, if the value and numerical density reach a set fire line within a set period of time, the alarm instrument is notified to give out an alarm signal. The thunder alarm instrument of the invention has low construction cost, long working life, convenient operation and maintenance and large monitoring range, and can work under various climatic environments, thus being applicable to vast rural areas and outlying mountain areas lack of funds and technology.
Description
technical field [0001] The invention relates to the field of lightning alarms, in particular to a lightning alarm device. Background technique [0002] With the frequency and severity of lightning disasters, more and more attention has been paid to lightning protection and early warning in various places. At present, lightning monitoring and forecasting generally use a rotating electric field mill (Electric field mill), which is also called an atmospheric electric field mill. The advantage of this instrument is that it can monitor the whole process of lightning occurrence, development, and dissipation. Its disadvantage is that it can only monitor lightning activities within a radius of 8-9km from the measuring point. The rotating electric field meter is divided into two parts: the outdoor probe and the indoor main unit. The probe sensor needs to be driven by a motor to rotate. The probe output has two channels: the electric field signal channel and the reference signal chan...
Claims
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IPC IPC(8): G01R29/08
Inventor 罗福山张华伟刘成刘波姜秀杰何渝晖于世强张金刚
Owner 航天新气象科技有限公司