AWEX electrical components Germany AWEX model AWEX price

AWEX electrical components are components that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance; it only impedes changes in current. If the inductor is in a state with no current flowing through it, when the circuit is connected, it will attempt to impede current from flowing through it; if the inductor is in a state with current flowing through it, when the circuit is disconnected, it will attempt to maintain the current unchanged. Inductors are also known as chokes, reactors, and dynamic reactors.

AWEX electrical components function

Antennas radiate radio waves, and what they receive is also 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 take place. 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 feeding equipment (the feeding equipment 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 feeding equipment. 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.

AWEX electrical components principle

The basic principle of a multimeter is to use a sensitive moving-coil DC ammeter (microammeter) as the meter head. When a small current passes through the meter head, there will be a current indication. However, the meter head cannot handle large currents, so resistors must be connected in parallel and series with the meter head to shunt or reduce voltage, thereby measuring current, voltage, and resistance in the circuit. The measurement process of a digital multimeter involves a conversion circuit converting the measured quantity into a DC voltage signal, then an analog-to-digital (A/D) converter converting the analog voltage into a digital quantity, which is then counted by an electronic counter, and finally the measurement result is displayed directly as numbers on the display screen. The functions of measuring voltage, current, and resistance in a multimeter are realized through the conversion circuit part, while the measurement of current and resistance is based on voltage measurement. In other words, a digital multimeter is expanded from a digital DC voltmeter. The digital DC voltmeter's A/D converter transforms the continuously changing analog voltage over time into a digital quantity, which is then counted by an electronic counter to obtain the measurement result, and the decoding display circuit displays the measurement result. The logic control circuit coordinates the operation of the circuits, completing the entire measurement process sequentially under the action of the clock.

AWEX electrical components principle

Potentiometric displacement sensors convert mechanical displacement into resistance or voltage output that has a linear or arbitrary functional relationship with the displacement, using potentiometer elements. Ordinary linear potentiometers and rotary potentiometers can be used as linear displacement and angular displacement sensors, respectively. However, potentiometers designed for the purpose of measuring displacement require a definite relationship between displacement change and resistance change. The movable wiper of a potentiometric displacement sensor is connected to the object being measured. The displacement of the object causes a change in resistance at the moving end of the potentiometer. The magnitude of the resistance change reflects the magnitude of the displacement, while whether the resistance increases or decreases indicates the direction of the displacement. Typically, a power supply voltage is applied across the potentiometer to convert the resistance change into a voltage output. Wire-wound potentiometers exhibit a stepped output characteristic because the resistance changes in steps of turn resistance as the wiper moves. If such a displacement sensor is used as a displacement feedback element in a servo system, excessive step voltages may cause system oscillation. Therefore, the resistance value per turn should be minimized during the manufacture of the potentiometer. Another major disadvantage of potentiometric sensors is their susceptibility to wear. Their advantages include simple structure, large output signal, ease of use, and low cost.

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