FKTECHNICS electrical components German FKTECHNICS models FKTECHNICS prices

FKTECHNICS electrical components are detection devices that can sense measured information and convert the sensed information into electrical signals or other required forms of output according to certain rules, to meet the requirements for information transmission, processing, storage, display, recording, and control. The existence and development of sensors give objects senses such as touch, taste, and smell, making objects come alive; sensors are an extension of human senses. Sensors feature miniaturization, digitization, intelligence, multifunctionality, systematization, and networking. They are the primary link in realizing automatic detection and automatic control. A device or apparatus that can sense a specified measured quantity and convert it into a usable signal according to a certain rule (mathematical function law), usually composed of a sensitive element and a conversion element.

FKTECHNICS electrical component features

(1) loudspeakers have two terminals (two leads). When a single loudspeaker is used, the two pins are not distinguished by polarity; when multiple loudspeakers are used simultaneously, the two pins have polarity distinctions. (2) Loudspeakers have a paper cone, which is usually black, but also white. (3) Loudspeaker shapes include circular, square, and oval categories. (4) The back of the loudspeaker paper cone is a magnet. When a metal screwdriver touches the magnet of an external-magnet loudspeaker, the presence of magnetism can be felt; this sensation is not present in internal-magnet loudspeakers, but there is indeed a magnet inside the housing. (5) Loudspeakers are mounted on machine panels or inside speaker enclosures.

FKTECHNICS electrical component classification

Light-emitting diodes can also be divided into ordinary monochrome LEDs, high-brightness LEDs, ultra-high-brightness LEDs, color-changing LEDs, flashing LEDs, voltage-controlled LEDs, infrared LEDs, and negative-resistance LEDs. The control modes of LED include constant current and constant voltage. There are various dimming methods, such as analog dimming and PWM dimming. Most LED units adopt constant current control, which keeps the LED current stable, is less affected by changes in VF, and can extend the service life of LED luminaires.

FKTECHNICS electrical component parameters

The main parameters of potentiometers include nominal resistance, rated power, resolution, sliding noise, resistance variation characteristic, wear resistance, zero-position resistance, and temperature coefficient. 1. Rated power: The maximum power allowed to be dissipated across the two fixed terminals of a potentiometer is its rated power. Note that the rated power is not equal to the power between the center tap and the fixed terminal. The rated power of a potentiometer refers to the maximum power allowed to be consumed under long-term continuous load at the specified rated temperature in DC or AC circuits when the atmospheric pressure is 87~107kPa. 2. Nominal resistance: The nominal resistance marked on the product, with series similar to those of resistors. 3. Permissible error class: The error range between the measured resistance and the nominal resistance allows for 20%, 10%, 5%, 2%, and 1% errors depending on the precision class. The precision of precision potentiometers can reach 0.1%. 8. Resistance variation law: Refers to the relationship between resistance change and the rotation angle (or sliding travel) of the wiper contact. This relationship can take any functional form; common types include linear, logarithmic, and reverse logarithmic (exponential). In use, linear potentiometers are suitable as voltage dividers; reverse logarithmic (exponential) potentiometers are suitable as volume controllers in radios, tape recorders, phonographs, and televisions. If a replacement of the same type is not found during maintenance, a linear type may be used as a substitute, but a logarithmic type should not be used. Logarithmic potentiometers are only suitable for tone control, etc.

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