Radio frequency ion energizing device for generating neutralizing electrons by utilizing hot cathode
Technical Field
The invention relates to the technical field of radio frequency ionization, in particular to a radio frequency ion energizing device for generating neutralizing electrons by utilizing a hot cathode.
Background
In the theory of electronics, current flows through a conductor, and a magnetic field is formed around the conductor; an alternating current passes through a conductor, around which an alternating electromagnetic field, called an electromagnetic wave, is formed. When the frequency of the electromagnetic waves is lower than 100kHz, the electromagnetic waves can be absorbed by the ground surface and cannot form effective transmission, but when the frequency of the electromagnetic waves is higher than 100kHz, the electromagnetic waves can be transmitted in the air and reflected by an ionosphere at the outer edge of the atmosphere to form long-distance transmission capability. We refer to high frequency electromagnetic waves with long range transmission capabilities as radio frequencies. Radio frequency technology is widely used in the field of wireless communication, and cable television systems adopt a radio frequency transmission mode. In the prior art, neutralizing electrons are generated by a radio frequency ionization technology, and the production efficiency is influenced because the radio frequency ionization technology has the problems of difficult glow starting, long glow starting time and the like in the ionization ignition process; and the cost of the radio frequency neutralization system is high.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned problems in the art by providing an rf ion energizer that utilizes a hot cathode to generate neutralizing electrons.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an utilize hot cathode to produce radio frequency ion energizing device of neutralization electron, includes grid system, first coil, second coil, gas isolator, discharge chamber, metal casing, first power, second power, alternating current power supply, bias power supply and negative pole filament, first coil is installed in the outside of discharge chamber, gas isolator is installed to one side bottom of discharge chamber, the second coil is installed to the bottom of discharge chamber, metal casing is installed in the outside of discharge chamber, and the second power passes through the wire and loads the positive voltage on first grid, and the first power passes through the wire and loads negative voltage on the second grid, and third grid ground connection, bias power supply load the negative voltage on the negative pole filament, alternating current power supply passes through the wire and loads the electric energy to the filament.
As a preferable technical solution of the present invention, the discharge chamber, the first coil and the second coil are all installed inside a metal housing.
As a preferred embodiment of the present invention, the first coil and the second coil may be separately installed to form a radio frequency coil, the discharge chamber is connected to the metal housing through a gas isolator, and the working gas is supplied into the discharge chamber through the gas isolator.
As a preferred technical solution of the present invention, the first power supply, the second power supply, and the bias power supply are all connected to a ground line.
The invention has the beneficial effects that: the device can rapidly obtain the initial starting electron and the neutralizing electron flow, and improve the production efficiency of equipment; and ion beam output of the same performance can be achieved at a relatively low equipment cost.
Drawings
FIG. 1 is a block diagram of the present invention.
In the figure: 1. grid system, 101, first grid, 102, second grid, 103, third grid, 2, first coil, 3, second coil, 4, gas isolator, 5, discharge chamber, 6, metal casing, 701, first power supply, 702, second power supply, 8, alternating current power supply, 9, bias power supply, 10, cathode filament.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the invention.
Example (b): referring to fig. 1, the present invention provides a technical solution: a radio frequency ion energizing device for generating neutralizing electrons by utilizing a hot cathode comprises a grid system 1, a first coil 2, a second coil 3, a gas isolator 4, a discharge chamber 5, a metal shell 6, a first power supply 701, a second power supply 702, an alternating current power supply 8, a bias power supply 9 and a cathode filament 10, wherein the first coil 2 is installed on the outer side of the discharge chamber 5, the gas isolator 4 is installed at the bottom of one side of the discharge chamber 5, the second coil 3 is installed at the bottom of the discharge chamber 5, the metal shell 6 is installed on the outer side of the discharge chamber 5, positive voltage is loaded on a first grid 101 by the second power supply 702 through a lead, negative voltage is loaded on a second grid 102 by the first power supply 701 through a lead, a third grid 103 is grounded, the negative voltage is loaded on the cathode filament 10 by the bias power supply 9, and electric energy is loaded on the filament by the alternating current power supply 8.
The discharge chamber 5, the first coil 2 and the second coil 3 are all mounted inside a metal housing 6.
The first coil 2 and the second coil 3 may be separately installed together to constitute a radio frequency coil, and the discharge chamber 5 is connected to the metal casing 6 through a gas separator 4 and a working gas is supplied into the discharge chamber through the gas separator.
The first power supply 701, the second power supply 702, and the bias power supply 9 are all connected to ground.
The working principle is as follows: a radio frequency ion energizing device for generating neutralizing electrons by utilizing a hot cathode comprises a grid system 1, a first coil 2, a second coil 3, a gas isolator 4, a discharge chamber 5, a metal shell 6, a first power supply 701, a second power supply 702, an alternating current power supply 8, a bias power supply 9 and a cathode filament 10, and the device is an ion emitting system for generating neutral high-energy particles; the system consists of a high-energy positive ion emission system and a neutralization electron emission system; the neutralization electron emission system heats the hot cathode filament 10 (heating current is 5-200A) through the alternating current power supply 8, so that the hot cathode filament 10 can reach a state of emitting electrons, and the hot cathode filament emits low-speed electron current outwards under the drive of the bias voltage of the bias power supply 9 (the electron current can be adjusted between 0-20A under the control of changing the alternating current power supply 8 and the bias power supply 9); in the radio-frequency high-energy positive ion emission system, radio-frequency power is modulated by a radio-frequency matcher and then loaded on an emission antenna formed by combining a first coil 2 and a second coil 3, so that working gas transmitted into a discharge chamber 5 through a gas isolator 4 is ionized to form discharge plasma;
the plasma leads out positive ions through an electric field under the action of a direct current electric field loaded on the grid system 1 to form a high-energy positive ion flow; the first power source 701 and the second power source 702 act simultaneously to form an electric field that is loaded on the gate system; the first coil 2 and the second coil 3 in the high-energy positive ion emission system can be used independently or simultaneously to act in a radio frequency system; the radio frequency high-energy positive ion emission system forms shielding and supports the system through the metal shell 6; the device can rapidly obtain the initial starting electron and the neutralizing electron flow, and improve the production efficiency of equipment; and ion beam output of the same performance can be achieved at a relatively low equipment cost.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.