Literally,the general people rarely contact explosion-proof radio, can only merely understand the use is explosion-proof function, can be applied to the explosion-proof area, as for what principle, explosion-proof radio specific what characteristics are not known.
Explosion-proof radios refer to two way radios used in different flammable, explosive, dust and other environments according to different explosion-proof certification levels. Explosion-proof radios are attached with Ex explosion-proof certification mark, indicating that the product has passed the national explosion-proof testing agency certification, can be used in specific explosive gas environment.
The principle of explosion-proof radio: Explosion often brings great loss of life and property. Preventing the release of combustible materials, which is often the cause of explosive conditions, and preventing the creation of effective ignition sources are widely used methods to reduce the risk of explosion. And the use of correct equipment can be more effective prevention. An effective source of ignition may be one or a combination of: lightning, open flames, excessive surface temperatures, electric arcs or sparks in electronic equipment, sparks caused by different potentials, mechanical sparks (friction or collision), electrostatic discharges, radio-frequency radiation, and associated radiation (lasers).
Why do you need an explosion-proof radio? From the above we can see that the use of explosion-proof radio in special occasions is a necessary communication equipment, then explosion-proof radio, is a function of explosion-proof radio, and use is more practical than the general two way radio. Ordinary mobile phone calls can only be one-to-one, while two way radio supports one-to-many call mode, which can highlight its advantages in the work scene of personnel scheduling, and well solve the problem of division of labor and decision.
Explosion-proof radios can talk without any network support, and no call charges are generated. They are suitable for relatively fixed and frequent calls. In some special working background environment, such as very noisy production workshop, pharmaceutical workshop, the voice of the walkie-talkie is clear, convenient communication, and the two way radio can achieve a hundred calls, very practical!
The difference between explosion-proof radios and ordinary radios
Let's start by understanding what an explosion-proof radio is. This type of two way radio mainly refers to the ability to work in the environment of explosive gas, rather than itself can resist explosion. At present, it is mainly used in harsh environment and dangerous combustible gas or dust environment, such as petrochemical, coal, chemical, thermal power, food processing and other industries. Our commonly used analog and digital two way radios mainly rely on electromagnetic wave to transmit signals, and electromagnetic wave transmission mainly uses the continuous conversion between electric and magnetic fields, in this conversion process is very easy to generate sparks. The circuit of the explosion-proof radio has been specially treated, and the places that may generate sparks in the conversion process will be basically shielded, so the security will be higher.
Explosion-proof radios and ordinary radios have no difference in appearance, and talk distance is similar. The main differences lie in the materials used, physical properties, application areas and market prices. In addition, because the explosion-proof radios usually work in a noisy environment, the sound quality requirements will be higher to ensure that the communication can be maintained in the noisy environment.
There is also a very important point is that explosion-proof radios need to pass the certification of explosion-proof detection agencies, in order to be put into the market for use.
