A zapper bug , more formally called an electrical discharge control system , an electric insect trap or (insects) , is an interesting tool and kills flying insects that are attracted by light. Light sources attract insects into the electrical grid, where they are electrocuted by touching two wires with high voltage between them. Its name is derived from the onomatopoeic zapping sound of the characteristics produced when the insect is electrocuted.
Video Bug zapper
History
In the October 1911 issue, Popular Mechanics magazine has a snippet showing a "fly trap" model that uses all the elements of a modern bug zapper, including electric lights and electrification grids. The design was carried out by two unnamed Denver people and considered too expensive to be used practically. The device is 10 by 15 inches (25 by 38 cm), containing 5 incandescent light bulbs, and the grid is 1 / 16 -inch (1 , 59 mm) spaced cable 1 / 8 -inch (3.17 mm) apart with 450 volt voltage. Users should feed the interior with meat.
According to the US Patent and Trademark Office, the first bug zapper patented in 1932 by William M. Frost;
Separately, Dr. William Brodbeck Herms (1876-1949), a professor of parasitology at the University of California, has been working on a large commercial insect trap for over 20 years for the protection of California's important fruit industry. In 1934 he introduced an electronic insect killer that became the model for all future zappers of the perpetrator.
Maps Bug zapper
Design
Zappers bugs are usually placed in a protective enclosure of plastic or metal rods grounded to prevent people or animals touching the high-voltage network. Light sources are installed inside, often fluorescent lamps designed to emit visible and ultraviolet light, which is visible to the insect and pulls it. Light is surrounded by a pair of wire grilles or spirals that are inserted. The distance between adjacent cables is usually about 2 mm (0.079 inches). The main power-driven high-voltage power supply, which can be a simple transformerless voltage multiplier circuit made with a diode and capacitor, produces a voltage of 2,000 volts or more, high enough to travel through an insect's body that bridges two lattices but not high enough to trigger air gap. Simply an electric current flows through the tiny body of an insect to heat it to a high temperature. The impedance of the power supply and the regulation of the grid is such that it can not drive harmful currents through the human body.
Many bug zappers are equipped with trays that collect shocked insects; other models are designed to allow the debris to fall to the ground below. Some use fans to help trap insects.
External trap
This trap is not effective at killing bite insects (female mosquitoes and other insects), much more effective in attracting and killing insects that are harmless and other useful. A study by the University of Delaware showed that during a period of 15 summer nights 13,789 insects were killed among six devices. Of the insects that were killed, only 31 were bitten by insects. Mosquitoes are attracted to carbon dioxide and water vapor in the mammalian breath, not ultraviolet light. However, there are now zappers bugs that emit carbon dioxide or use external baits, such as octenol, to further attract insects to bite into the light.
Scattering
Research has shown that when an insect is electrocuted, a bug zappers can spread a fog containing insect parts up to about 2 m (6 ft 7 inches) from the device. The air around the bug zapper can be contaminated by bacteria and viruses that can be inhaled by, or settle in the food of the people in the immediate vicinity. The US Food and Drug Administration (FDA) recommends that zapper bugs should not be installed above the food preparation area, and insects should be stored inside the device. The anti-scratch design is generated for this purpose.
Brightness and lamp replacement
On some devices, the light is so bright that it is not easy to use indoors (ie in the bedroom). Also in some models, access to UV lamp replacement is difficult, or lamps are not widely available. Other models use the basic E27 lamp standard, or use fluorescent tube lights.
Tennis Racquet
In the past battery-powered Bug Zappers has become a common household item. Often they come in the form of tennis rackets where flying insects can be hit.
See also
- Electric fly swatter
- Fly killer tool
- Insect repellent from natural sources
- Moth trap
- Nematocera
- Personal protective equipment
References
Source of the article : Wikipedia
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