EIELECTRONIC electrical components Germany EIELECTRONIC model EIELECTRONIC price

EIELECTRONIC electrical components are tools that can accurately determine and measure temperature, divided into pointer thermometers and digital thermometers. Depending on the temperature-sensing substance used and the temperature measurement range, there are kerosene thermometers, alcohol thermometers, mercury thermometers, gas thermometers, resistance thermometers, thermocouple thermometers, radiation thermometers and optical pyrometers, bimetallic thermometers, etc. Digital thermometers can accurately determine and measure temperature, displaying it digitally rather than with a pointer or mercury. Hence they are called digital thermometers or digital temperature gauges.

EIELECTRONIC electrical components principle

The construction of a mercury switch is very simple. The exterior is a sealed cylindrical insulating housing containing approximately one-fifth mercury. Two wires leading from the interior are fixed at one end of the housing. This constitutes a mercury switch. Due to gravity, the mercury bead flows to the lower part of the container; if it simultaneously contacts both electrodes, the switch closes the circuit, turning the switch on. The shape of the container also affects the conditions under which the mercury bead contacts the electrodes.

EIELECTRONIC electrical components function

Antennas radiate radio waves and receive radio waves. However, what the transmitter feeds into the antenna via the feed line is not radio waves, nor can the receiving antenna directly feed radio waves into the receiver via the feed line; an energy conversion process must occur in between. Below, we analyze the signal transmission process using radio communication equipment as an example to illustrate the energy conversion role of antennas. At the transmitting end, the modulated high-frequency oscillating current (energy) generated by the transmitter is input to the transmitting antenna via the feeding device (the feeding device may directly transmit current waves or electromagnetic waves depending on frequency and form). The transmitting antenna converts the high-frequency current or guided wave (energy) into radio waves—free electromagnetic waves (energy)—radiating them into the surrounding space. At the receiving end, radio waves (energy) are converted by the receiving antenna into high-frequency current or guided wave (energy), which is transmitted to the receiver via the feeding device. From the above process, it can be seen that the antenna is not only a device for radiating and receiving radio waves, but also an energy converter, serving as the interface component between the circuit and space.

EIELECTRONIC electrical components application

Dedicated solid-state relays can feature short-circuit, overload, and overheat protection. When combined with hardwired logic in a monolithic package, they form intelligent modules tailored to user requirements for direct integration into control systems. Solid-state relays are widely used in computer peripheral interface equipment, temperature control systems, heating regulation, electric furnace heating control, motor control, CNC machinery, remote control systems, and industrial automation devices; signal lights, dimming, flashers, and stage lighting control systems; instruments, meters, medical devices, copiers, and automatic washing machines; automatic fire protection and security systems, as well as switching switches for power capacitors used in grid power factor compensation. They are also extensively used in explosive-proof, moisture-proof, and corrosion-resistant environments such as chemical plants and coal mines.

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