ADVEL electrical components Germany ADVEL model ADVEL price

ADVEL electrical components are resistive elements with three terminals, whose resistance can be adjusted according to a specific variation pattern. A potentiometer typically consists of a resistive element and a movable wiper. When the wiper moves along the resistive element, a resistance value or voltage proportional to the displacement is obtained at the output terminal. A potentiometer can be used as either a three-terminal component or a two-terminal component. The latter can be regarded as a variable resistor; since its function in a circuit is to obtain an output voltage that has a specific relationship with the input voltage (applied voltage), it is called a potentiometer. A potentiometer is a type of variable resistor. It usually consists of a resistive element and a rotating or sliding system, obtaining partial voltage output by moving a movable contact on the resistive element. The function of a potentiometer is to adjust voltage (including DC voltage and signal voltage) and current magnitude. Structural features of potentiometers: The resistive element of a potentiometer has two fixed terminals. By manually adjusting the shaft or slider, the position of the movable contact on the resistive element is changed, thereby altering the resistance between the movable contact and any fixed terminal, which in turn changes the voltage and current magnitude. A potentiometer is an adjustable electronic component. It consists of a resistive element and a rotating or sliding system. When a voltage is applied across the two fixed contacts of the resistive element, changing the position of the contact on the resistive element via the rotating or sliding system yields a voltage between the movable contact and the fixed contact that is proportional to the position of the movable contact. It is mostly used as a voltage divider, in which case the potentiometer is a four-terminal component. A potentiometer is essentially a sliding rheostat, available in several styles, generally used for volume control in speakers and power adjustment for laser heads. A potentiometer is an adjustable electronic component. It is a variable resistor used for voltage division. One or two movable metal contacts are pressed tightly against the exposed resistive element. The position of the contact determines the resistance between either end of the resistive element and the contact. Classified by material: wire-wound, carbon film, and solid-core potentiometers. Classified by the relationship between the output-to-input voltage ratio and the rotation angle: linear potentiometers (linear relationship) and functional potentiometers (curvilinear relationship). Main parameters include resistance value, tolerance, and rated power. Widely used in electronic equipment, such as for volume control in audio systems and receivers.

ADVEL electrical component principle

The absorption film irradiated by infrared rays is a thin film with low heat capacity, allowing its temperature to rise easily. Directly below the center of the substrate is a cavity structure; this design ensures a temperature difference between the cold junction and the measuring junction. The thermocouple is composed of polysilicon and aluminum, connected in series. When the temperature at the measuring junction of each thermocouple rises, a thermal electromotive force Vn is generated between the thermocouples, so their voltage sum can be obtained at the output terminal.

ADVEL electrical component characteristics

A solid-state relay is a contactless electronic switch with isolation functionality. There are no mechanical contact parts during switching. Therefore, in addition to having the same functions as electromagnetic relays, solid-state relays offer compatibility with logic circuits, resistance to vibration and mechanical shock, unrestricted installation positions, good moisture-proof, mold-proof, and corrosion-resistant performance, excellent performance in explosion-proofing and preventing ozone pollution, low input power, high sensitivity, low control power, good electromagnetic compatibility, low noise, and high operating frequency. Solid-state relays have no internal mechanical parts and adopt a potting fully sealed structure, providing advantages such as vibration resistance, corrosion resistance, long service life, and high reliability. AC solid-state relays use zero-crossing triggering technology, resulting in short switching times, making them suitable for higher-frequency applications. Optical isolation is used between the input and output circuits, input power consumption is very low, the output terminal has a protection circuit, and load capacity is strong.

ADVEL electrical component structure

The basic structure of a voltage transformer is very similar to that of a transformer. It also has two windings: one called the primary winding and the other called the secondary winding. Both windings are mounted on or wound around an iron core. Insulation exists between the two windings and between the windings and the iron core, providing electrical isolation between the two windings and between the windings and the iron core. During operation, the primary winding N1 is connected in parallel to the line, and the secondary winding N10 is connected in parallel to instruments or relays. Therefore, when measuring voltage on high-voltage lines, although the primary voltage is very high, the secondary side is low voltage, ensuring the safety of operators and instruments.

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