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Subsonic wave generator

A device for generating infrasound waves, applied in the field of electronics, can solve the problems of difficult shielding of infrasound waves, long wavelengths of infrasound waves, leakage of infrasound waves, etc., and achieves the effects of easy shielding, high work efficiency, and reduced usage

Active Publication Date: 2013-03-20
NANTONG BEITE PHARMA MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long wavelength of infrasound, if it is directly produced by a machine, the size of the machine must be very large, and the infrasound generated by this trend is also difficult to shield, which will cause the leakage of infrasound to cause harm to the personnel in the surrounding environment. harm

Method used

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Examples

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Embodiment Construction

[0043] Examples such as figure 1 As shown, the infrasonic wave generating device includes a wedge-shaped insertion rod 1 made of insulating material. The upper part of the insertion rod 1 is provided with a first electrode 2, and the lower part of the insertion rod 1 is provided with a second electrode 3. The first electrode 2 and the second The insertion rod 1 between the electrodes 3 is provided with an ultrasonic vibrator 4, the upper end of the insertion rod 1 is provided with a handle 5, the ultrasonic vibrator 4 is electrically connected with the amplitude modulation wave signal generation circuit, and the handle 5 can insert the insertion rod 1 into the ground.

[0044] Such as figure 2 , image 3 , Figure 4 , Figure 5 As shown, the amplitude modulation wave signal generation circuit includes a control circuit, an ultrasonic wave generation circuit, a frequency converter 6 and a power amplifier circuit;

[0045] Control circuit, including electrically connected m...

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Abstract

The invention relates to a subsonic wave generator, comprising an amplitude-modulated wave signal generating circuit and an ultrasonic wave resonator. A subsonic wave signal output circuit outputs a subsonic wave signal IP to a subsonic wave generating circuit; a direct current control voltage output circuit outputs a voltage of 0-10V to the input terminal of a frequency converter; an oscillator generates a sinusoidal signal, the sinusoidal signal is shaped by virtue of a first voltage comparator to obtain a square wave signal; a second voltage comparator converts the subsonic signal IP into minus or plus 15V square wave direct current voltage; a gating circuit outputs a positive pulse signal INH with the frequency of 40Hz and a negative pulse signal INL with the frequency of 40HZ; a power amplifying circuit outputs a high frequency signal with amplitude modulated by a subsonic wave to an ultrasonic wave oscillator ZL, the ultrasonic wave oscillator is buried underground, a mechanical wave with amplitude varied along with the subsonic wave is formed in the soil, soil oscillation is overlying of two oscillation waves, namely ultrasonic wave high frequency vibration and slow subsonic wave vibration; and the subsonic wave is produced by ultrasonic wave, has small forming range and is easy to shield, and working efficiency is high.

Description

technical field [0001] The invention relates to an infrasonic wave generating device, which belongs to the field of electronic technology. Background technique [0002] Plant root-knot nematode disease mainly harms the lateral roots and fibrous roots of plants. If the plant fibrous roots or lateral roots are infected, it will produce nodular root knots of different sizes, which are light yellow to yellowish brown. Dissecting the root knots, there are many slender and long knots in the diseased tissue. Wriggling, milky-white nematodes inhabit it. Symptoms of the aboveground part of the lightly diseased plant are not obvious. When the disease is severe, the plant is obviously dwarfed, the melons are few and small, the leaves are chlorotic and yellow, and the aboveground part of the plant wilts or gradually turns yellow at noon on a sunny day, and finally the plant dies. Due to the relatively single crops grown in vegetable greenhouses, the high rate of repeated cropping provi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01M17/00
Inventor 郝建波李守奎
Owner NANTONG BEITE PHARMA MACHINERY
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