EMKOPRAHA electrical components Germany EMKOPRAHA model EMKOPRAHA price

EMKOPRAHA electrical components are products whose raw material molecular composition is not changed during factory processing, and can be called components. Components belong to devices that do not require energy. They include: resistors, capacitors, inductors. Circuit-type components include diodes and resistors; connection-type components include connectors, sockets, connecting cables, printed circuit boards (PCB), etc. Devices are products whose raw material molecular structure is changed during factory production and processing. Devices are divided into active devices and discrete devices. The main characteristic of active devices is that they consume small amounts of electrical energy and require an external power supply. Discrete devices are divided into bipolar junction transistors, field-effect transistors, thyristors, semiconductor resistors and capacitors. shi

EMKOPRAHA electrical component principles

The basic working principle of fiber optic sensors is to transmit light from a light source through an optical fiber into a modulator, causing the optical properties of the light (such as intensity, wavelength, frequency, phase, polarization state, etc.) to change after interacting with the parameter to be measured in the modulation region. This is called the modulated signal light. The measurement is completed by utilizing the influence of the measured quantity on the transmission characteristics of the light. There are two types of fiber optic sensor measurement principles: (1) Physical property fiber optic sensor principle. Physical property fiber optic sensors utilize the sensitivity of the optical fiber to environmental changes to convert input physical quantities into modulated optical signals. Their working principle is based on the optical modulation effect of the fiber, i.e., the phenomenon where its light transmission characteristics, such as phase and light intensity, change when external environmental factors such as temperature, pressure, electric field, magnetic field, etc., change. Therefore, if the changes in light phase and intensity through the fiber can be measured, the changes in the measured physical quantity can be determined. This type of sensor is also known as sensitive element type or functional fiber optic sensor. The point source beam of the laser is diffused into parallel waves and split into two paths by a beam splitter: one is the reference path, and the other is the measurement path. External parameters (temperature, pressure, vibration, etc.) cause changes in fiber length and optical phase, thereby generating different numbers of interference fringes. Counting their lateral movement allows measurement of temperature or pressure. (7) Structural fiber optic sensor principle. Structural fiber optic sensors are measurement systems composed of photodetection elements (sensitive elements), optical fiber transmission circuits, and measurement circuits. Since the optical fiber serves only as a medium for light propagation, it is also called a light-transmitting or non-functional fiber optic sensor.

EMKOPRAHA electrical component classification

A self-inductor generates a magnetic field around the coil when current flows through it. When the current in the coil changes, the surrounding magnetic field changes correspondingly. This changing magnetic field induces an electromotive force (induced EMF) in the coil itself (EMF is used to represent the terminal voltage of the ideal power source of an active component). This is self-inductance. An electronic component made by winding wire with a certain number of turns, capable of producing a certain amount of self-inductance or mutual inductance, is commonly called an inductor coil. To increase inductance, improve the quality factor, and reduce volume, iron cores or magnetic cores made of ferromagnetic materials are often added. The basic parameters of an inductor include inductance, quality factor, inherent capacitance, stability, current rating, and operating frequency. An inductor composed of a single coil is called a self-inductor, and its self-inductance is also known as the self-inductance coefficient. A mutual inductor refers to the phenomenon where, when two inductor coils are close to each other, a change in the magnetic field of one coil affects the other. This effect is mutual inductance. The magnitude of mutual inductance depends on the self-inductance of the coils and the degree of coupling between them. Components manufactured using this principle are called mutual inductors.

EMKOPRAHA electrical component classification

Terminal blocks can be divided into European-style terminal block series, plug-in terminal block series, transformer terminal blocks, building wiring terminals, barrier-type terminal block series, spring-type terminal block series, DIN rail-mounted terminal block series, wall-through terminal block series, optocoupler-type terminal block series, various ring terminals, tubular terminals, wire terminals, copper strips, iron strips, etc. Usage methods include plug-in, barrier-type, spring-type, DIN rail-mounted, wall-through, and fuse terminals.

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