【 Weak current College 】 how to release the static 】

Definition of static electricity
1. natural phenomena

Introduction

Substances are molecules, molecules are made of atoms, Atomic are negatively charged electron and positively charged protons. Under normal circumstances, an atomic number of proton and electron number are the same, and negative balance, so it's not a live show. But electronic wrapping around the nucleus, is liable on the detachment track outside, leave the original nucleus of the atom by invading other B, A number of atoms due to lack of e-and with the positive phenomenon, known as cationic, B atomic number by increasing the e is negatively charged phenomenon, called anions.

Imbalance electronic distribution of reasons which are the electronic outside and away from the track, this external force contains a variety of energy (such as kinetic energy, potential energy, thermal energy, chemical energy ... And so on) in daily life, any two objects of different materials and separation after contact, you can generate static electricity.

When two different objects touching is making a loss of some objects, such as the electronic transfer of the charge to another object so that it with the positive and the other bodies have some remaining electronic objects and negatively charged. If in the process of separation is difficult to charge, charge in and will accumulate static electricity that makes an object with. Therefore objects with other objects after separation will be in contact with static electricity. Usually from one object split a piece of plastic film when it is a typical "contact separation" electrification, in everyday clothes produced electrostatic separation was also a form of "contact" electrification.

Solid, liquid or gas will contact separation but with static electricity. This is because gas is composed of molecules, atoms, when the air flow is molecular and Atomic also occur "contact separation" and electrification.

We all know the frictional electrification and rarely heard contact electrification. Essentially friction electrification is a contact and separation of positive and negative imbalance caused by the process. Friction is a continuous contact and separation process. Therefore triboelectrification essentially contact separation of electrification. In daily life, all kinds of objects may be moved or friction generate static.

Another common electrification is induction electrification. When you do not live near a charged object when the object is not charged on both ends of the conductor induces negative respectively and the positive electricity.

In a dry and windy autumn, in daily life, we often encounter this phenomenon: evening clothes to bed, the dark often hear crackling sounds, and meet with Blu-ray, shake hands, the fingers had contact with each other, will suddenly felt like a pain in the fingertips of acupuncture, turning pale; morning comb, hair will often "floating", the more reason and more chaos, door handles, open the faucet is "electric shock", "pop, pop" sound, this is occurring in the body of static electricity, the phenomenon is body electrostatic discharge "foreigners".

How to prevent static electricity

Human activities, skin and clothing as well as clothes and clothes mutual friction, it will generate static electricity. With the increase of household appliances, as well as winter people wear clothes, household linen of the electrostatic charge will be absorbed and stored up, plus indoor walls and floor are insulators, air drying, therefore more vulnerable to static interference.

Because of the relative ratio of older skin drying as well as young people aged aging of cardiovascular system, a antijamming ability weakens and other factors, so older people more susceptible to the effects of static electricity. Cardiovascular system already has a variety of diseases of the elderly, electrostatic more cause the disease exacerbation or induce ventricular contractions, such as cardiac arrhythmias. Excessive static also often make men restlessly, headache, chest tightness, shortness of breath, cough.

In order to prevent the occurrence of static electricity, Interior to keep a certain humidity, room to wash the floor and diligent sprinkles some water, or use the humidifier humidification; to bathe, wash clothes, to eliminate qinhuanyi body surface accumulation of static charge. Comb the hair cannot be found, the comb immersed for a while, and other static elimination, the hair will fit perfectly. Undress, hand gently touch the walls, touch the door knob or tap to hands before you touch any wall, put the body static electricity "," out, so that the static electricity will not hurt you. For the elderly, soft, smooth cotton textile or silk lingerie, underwear, try not to wear chemical fiber class clothing so that static electricity risks reduced to a minimum.

1. go to wash hands, or put your hand on the wall, and the removal of static try not to wear flowers in fiber clothes.

2, in order to avoid electrostatic hit, available small metal components (such as keys), cotton cloth, to touch the door, door handle, faucet, Chair, bed bar, to eliminate static electricity, then touch.

3, wear cotton underwear.

4, ready to get the right hand while holding SHIFT, and then using your fingers hit the following iron parts, and then drive door, turn left on the door with iron, but left don't loose, and then get off at the right hand turn, then, at this time you right hand holding the door will not be electrically to the ~ ~ Kazakhstan.. It follows, first, to get ~ ~

5, against static electricity, we can take the "defense" and "drop" in his hands. "Defense", we should try to use cotton products as clothing and home decoration fabrics, avoid using the chemical fiber rug and plastic surfaces of furniture to prevent friction and electrification. As far as possible away from such as television sets, refrigerators, electric appliance to prevent induction electrification. "Drop", is to increase the humidity, the partial release of electrostatic easily. When you turn off your TV and leave the computer should immediately wash their hands after washing your face, let the skin surface electrostatic charge free fall in the water. In winter, to choosing high moisturizing cosmetic. Commonly used humidifiers. Some people like in indoor feeding aquariums and daffodils are tuning Interior humidity in a good way.

In addition, recommend an economical method of humidification: in the heating down a bowl of water, with an old towel (or absorbent good cloth), a drop in the water, a ride in the heatingSo one night can House about 3 liters of water evaporation. If each heating is done, the whole room will feel moist. You may wish to try.

6. bathe, wash clothes, can effectively qinhuanyi elimination of body surface accumulation of static electricity.

Here are two tips to help prevent electric shock.

1, in housing, carpet and soles may generate static friction, outside the House may also be due to the wind cause was charged. When access to touch the iron when carefully, hand may get power play. Repeatedly encountered such a situation, you can take the following approach to avoid electric shock:

The iron in touch, not to directly use the iron hands touch, but a large hand to seize a bunch of keys in your Pocket (usually this will not be given electric shocks), then using a key tip to contact iron door, so that the electricity is sent, and will not be given electric shocks.

Principle: the hands of the discharge of pain is due to the high-voltage discharge, as the discharge is the iron hand and sudden exposure is a very small area contacts resulting moment high pressure. If you take out the Pocket key, hold the key to the first large-area (a bunch of keys themselves cannot pass away how much charge so you will not have a shock), then a key tip to contact large conductor, then discharge the contact point is not a hand-a point on the skin, which is the key to sophisticated, so do not feel pain in the hand (perhaps the keys will!----if it has the sense of pain).

2. taxi is often a shock phenomenon. Mainly as a car body and seat frictions electrostatic accumulation, and then close the door, the iron hand suddenly touch will be given electric shocks.

This situation occurs, it is best to note: get off at the friction in the body and seat, advance hand metal car door frame, you can generate static friction, ready to take possession of electrostatic drain, and do not get off suddenly touching the iron when discharge

Advantages and disadvantages-static

We know that friction can be electrified. Friction of positive and negative charges are bound to live on. It does not like the wire as directed in charge of mobile, so that people call it the electrostatic charge, hereinafter referred to as static electricity.

Electrostatic hazard

Electrostatic hazard a lot, it's the first type of harm from the charged body. In the aircraft and of air, moisture, dust and other particles friction is electrically charged, if the aircraft does not take measures that would seriously interfere with aircraft radio devices to work correctly, make the aircraft become deaf and blind man; in the printing, the paper will make between static paper bonded together, it is difficult to separate, to printing trouble; in pharmaceutical factory. Because of the electrostatic attraction of dust, can make the medicines are not up to standards of purity; on TV screen surface anti-static easy adsorption dust and grease, forming a layer of dust in the film, the image's clarity and brightness decrease; just blended dress common and difficult to take away the dust and electrostatic during a ghost. Electrostatic's second largest, is possible due to electrostatic sparks ignite some combustible substances and an explosion. The dark night, we took nylon, wool clothing, spark and "Chow Chow" sound, this basic harmless to the human body. But, apart from on the operating table can cause narcotic of EDM, injury doctors and patients; in the coal mine, you will cause gas explosion, can lead to death, the mine workers.

In short, electrostatic damage due to power and electrostatic Sparks, static electricity in the most serious of electrostatic discharge caused by fuel on fire and explosion. People often say that they happen to prevent electrostatic measures generally lower velocity and flow, and transformation of electrification strong technology links, using the electrification with less equipment and materials, etc. The simplest and most reliable way is to use the equipment grounding wire, so that you can put the charge cited people, avoid the accumulation of static electricity. Careful passengers likely found; in the two wing-tip of aircraft and the tail of the aircraft are equipped with discharge brush, landing, in order to prevent passengers fly was a shock to most of the landing gear on the ground with a specially designed tires or grounding line; to let the aircraft in the air leakage caused by electrostatic charge. We also often see tank car tail drag disunite, this is the car of grounding line. Appropriate to increase the humidity of the work environment, so that the charge at any time, release, or you can effectively eliminate static electricity. Wet weather is not easy to do a static test. Researchers study of antistatic agent, you can eliminate the insulator internal static electricity.

However, everything has two sides to everything. For electrostatic this covert mischief. As long as experience its weaknesses temperament, but also allows it to serve mankind. For example, electrostatic printing, coating, electrostatic flocking, electrostatic precipitator and Hong Kong Electrical separation technology, has been in industrial production and is widely used in daily life. Static electricity began in desalination of sea water, spraying pesticides, artificial rain, freezing and many other aspects of the show, even in the cosmic spacecraft also installed electrostatic feeder, electrostatic devices.

The use of static electricity; electrostatic precipitator, electrostatic coating, electrostatic flocking, Xerography, etc.

Electrostatic precipitator: you can eliminate the smoke and dust.

Electrostatic photocopying: quick and easy to book, information, document copying down.

Keywords: human body electrostatic discharge tester, electrostatic protection against static electricity to the human body