phoenix electrical components German phoenix models phoenix prices

phoenix electrical components are devices that convert electrical energy into mechanical energy. They utilize energized coils (i.e., stator windings) to generate a rotating magnetic field, which acts on the rotor (such as a squirrel-cage closed aluminum frame) to form electromagnetic rotational torque. Electric motors are classified into DC motors and AC motors based on the power supply used. Most motors in power systems are AC motors, which can be synchronous or asynchronous (the speed of the stator magnetic field does not remain synchronized with the rotor speed). The motor mainly consists of a stator and a rotor. The direction of motion of current-carrying conductors under force in a magnetic field is related to the direction of the current and the direction of the magnetic flux lines (magnetic field direction). The working principle of an electric motor is the force exerted by the magnetic field on the current, causing the motor to rotate.

phoenix electrical component structure

Some gas discharge tubes use glass as the encapsulation shell, while others use ceramic. The discharge tube is filled with inert gases with stable electrical properties (such as argon and neon). Common discharge tubes have two or three electrodes, separated by inert gas. Based on the number of electrodes, discharge tubes are classified into two-electrode and three-electrode types. Ceramic two-electrode discharge tubes consist of main components such as pure iron electrodes, nickel-chromium-cobalt alloy caps, silver-copper welding caps, and ceramic tube bodies. The discharge electrodes inside the tube are coated with radioactive oxides, and the inner wall of the tube body is also coated with radioactive elements to improve discharge characteristics. Discharge electrodes mainly come in rod-shaped and cup-shaped structures. In discharge tubes with rod-shaped electrodes, a cylindrical thermal shield is installed between the electrode and the tube wall. This thermal shield ensures uniform heating of the ceramic tube body, preventing local overheating that could cause tube fracture. The thermal shield is also coated with radioactive oxides to further reduce discharge dispersion. In discharge tubes with cup-shaped electrodes, a molybdenum mesh is installed at the cup opening, and cesium is placed inside the cup, also serving to reduce discharge dispersion. Three-electrode discharge tubes are also composed of pure iron electrodes, nickel-chromium-cobalt alloy caps, silver-copper welding caps, and ceramic tube bodies. Unlike two-electrode discharge tubes, three-electrode discharge tubes include a nickel-chromium-cobalt alloy cylinder as the third electrode, i.e., the ground electrode.

phoenix electrical component structure

Inductors generally consist of a bobbin, winding, shielding cover, encapsulation material, magnetic core, or iron core. 1, Bobbin: The bobbin refers to the support for winding the coil. For larger fixed inductors or adjustable inductors (such as oscillator coils, choke coils, etc.), enameled wire (or silk-covered wire) is mostly wound around the bobbin, and then a magnetic core, copper core, or iron core is inserted into the inner cavity of the bobbin to increase inductance. Bobbins are usually made of plastic, bakelite, or ceramic, and can be shaped according to actual needs. Small inductors (such as color-coded inductors) generally do not use bobbins but directly wind enameled wire onto the magnetic core. Air-core inductors (also known as formerless coils or air coils, mostly used in high-frequency circuits) do not use magnetic cores, bobbins, or shielding covers; instead, they are wound on a mold first, then the mold is removed, and a certain distance is maintained between the coil turns. 2, Winding: The winding refers to a set of coils with specified functions and is the basic component of an inductor. Windings are divided into single-layer and multi-layer types. Single-layer windings include close-wound (wires are wound circle by circle) and spaced-wound (a certain distance is kept between each turn of wire); multi-layer windings include layered flat winding, random winding, honeycomb winding, and other methods. 3, Magnetic Core and Magnetic Rod: Magnetic cores and rods are generally made of materials such as nickel-zinc ferrite or manganese-zinc ferrite. They come in various shapes such as "I" shape, columnar, cap-shaped, "E" shape, and pot shape. 4, Iron Core: Iron core materials mainly include silicon steel sheets and permalloy, mostly in "E" shape. 5, Shielding Cover: To prevent the magnetic field generated by some inductors during operation from affecting other circuits and components, a metal shielding cover is added (such as oscillator coils in semiconductor radios). Inductors with shielding covers will experience increased coil losses, reducing the Q value. 17, Encapsulation Material: Some inductors (such as color-coded inductors, color-ring inductors, etc.) are sealed with encapsulation materials after winding to enclose the coil and magnetic core. Encapsulation materials include plastic or epoxy resin.

phoenix electrical component principles

The basic working principle of fiber optic sensors is to guide light from a source through an optical fiber into a modulator. The interaction between the parameter to be measured and the light entering the modulation zone causes changes in the optical properties of the light (such as intensity, wavelength, frequency, phase, polarization state, etc.), resulting in modulated signal light. Measurement is completed by utilizing the influence of the measured quantity on the transmission characteristics of light. There are two measurement principles for fiber optic sensors: (1) Physical property-type fiber optic sensor principle: Physical property-type fiber optic sensors utilize the sensitivity of optical fibers to environmental changes to convert input physical quantities into modulated optical signals. Their working principle is based on the optical modulation effect of optical fibers, i.e., phenomena where light transmission characteristics, such as phase and intensity, change when external environmental factors like temperature, pressure, electric fields, and magnetic fields change. Therefore, by measuring changes in light phase and intensity through the fiber, changes in the measured physical quantity can be determined. These sensors are also known as sensitive element-type or functional fiber optic sensors. The point source beam of a laser is diffused into parallel waves and split into two paths by a beam splitter: one reference path and one measurement path. External parameters (temperature, pressure, vibration, etc.) cause changes in fiber length and optical phase, generating different numbers of interference fringes. Counting their lateral movement allows measurement of temperature or pressure. (8) Structural-type fiber optic sensor principle: Structural-type fiber optic sensors are measurement systems composed of photodetection elements (sensitive elements), optical fiber transmission loops, and measurement circuits. Here, the optical fiber serves only as a medium for light propagation, so they are also called transmissive or non-functional fiber optic sensors.

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