The important role of anti-static wrist straps in the electronics industry
The importance of anti-static wrist straps in the electronics industry Anti-static wrist straps are used to discharge the static electricity of the human body. It consists of anti-static elastic band, movable snap button, spring cord. It is composed of protection resistor and plug or chuck. The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn. Main indicators The maximum length of the spring cord is 250cm, and the leakage resistance is 106Ω (protection resistance 106Ω). Corded, cordless, anti-static wrist straps, static loops, wired wrist straps (anti-static), wireless anti-static wrist straps, and anti-static wrist straps. The wireless anti-static wrist strap uses the physical principle of (static voltage balance). According to the principle of "In Electrostatic Engineering", static electricity is developed by the principle of pushing between ions. The feature of static electricity pushing from high electricity to high potential pushes the electrostatic ions of the human body into the body of the drought disaster. The design (collection area) ), through the [Charge Sensing Principle], the front and back surfaces of the conductive plate will be provided with "equivalent charges of opposite sex"-skin effect. Because the area has built-in ion exchangers <utilizing its low free energy characteristics>, it can be easily provided The introduced electrostatic ions are equal to the opposite charge to neutralize, so the effect of electrostatic discharge can be achieved. In addition, there is a screw on the outside of the machine to connect with the internal conductor loop.
(1) It can be used as an instantaneous introduction of a large amount of electrostatic charge due to the improper touch of the high static power source. When the ion neutralization cannot be completed, it can be used to provide ion neutralization by using the screw outside air water molecules (for the Corona discharge effect) , To effectively eliminate static electricity, and achieve the ultimate goal of static discharge (static voltage balance).
(2) This screw can be used for potential return function (just touch the screw to the ground),
(3) It can be used as a loop detection terminal.
Wired grounding wrist strap is the most basic of anti-static equipment, and it is also a must-have item in the most commonly used production line. It is not only very convenient in erection and operation, but also the most affordable in price. The reason is that it is connected to the wrist strap and grounding. The wire discharges the static electricity on the human body to the ground. Therefore, the wrist strap must be in contact with the skin when using it. The grounding wire must also be directly grounded. Make sure that the grounding wire is unobstructed in order to achieve maximum effect.
The anti-static wrist strap electrostatic ring is a device that is worn on the human body's wrist to discharge the accumulated electrostatic charge of the human body. It is divided into wired type and wireless type, with metal ring and elastic conductive wire mixed ring. This product belongs to the anti-static wrist strap with buckle adjustment wired type, which can effectively protect the zero resistance parts from the interference of static electricity, and is used to discharge the static electricity of the human body. It is composed of an anti-static elastic band, a movable snap button, a spring cord, a protective resistor and a chuck. The inner layer of the elastic band is woven with anti-static yarn, and the outer layer is woven with ordinary yarn. The principle of the anti-static wired wrist strap is to conduct the static electricity of the human body to the earth through the wrist strap and the grounding wire. When in use, the wrist strap is in contact with the skin, and ensure that the grounding wire is directly grounded, so that it can exert its maximum effect. Wearing this anti-static wrist strap, it can safely remove the static electricity generated in the human body within 0.1 seconds. The grounded wrist strap is the most basic anti-static equipment and the most commonly used.