CREDOELEKTRO electrical components German CREDOELEKTRO models CREDOELEKTRO prices

CREDOELEKTRO electrical components are tools that can accurately determine and measure temperature, divided into pointer thermometers and digital thermometers. Depending on the temperature-sensing substance used and the temperature measurement range, there are kerosene thermometers, alcohol thermometers, mercury thermometers, gas thermometers, resistance thermometers, thermocouple thermometers, radiation thermometers and optical pyrometers, bimetallic thermometers, etc. Digital thermometers can accurately determine and measure temperature, displaying it numerically rather than with a pointer or mercury. Hence they are called digital thermometers or digital temperature gauges.

CREDOELEKTRO electrical component principles

In power generation, transformation, transmission, distribution, and consumption circuits, current levels vary widely, ranging from a few amperes to tens of thousands of amperes. To facilitate measurement, protection, and control, these currents need to be converted to a more uniform level. Additionally, voltages in these circuits are generally high, making direct measurement extremely dangerous. Current transformers serve the purpose of current conversion and electrical isolation. For analog ammeters, the secondary current of current transformers is mostly in the ampere range. For digital instruments, the sampled signal is generally in the milliampere range. The secondary current of miniature current transformers is in the milliampere range, primarily serving as a bridge between large transformers and sampling circuits. Miniature current transformers are also referred to as "instrument current transformers." ("Instrument current transformer" implies precision current transformers with multiple current ratios used in laboratories, generally for extending instrument ranges.) Current transformers operate on the principle of electromagnetic induction, similar to transformers; however, transformers convert voltage while current transformers convert current. The winding connected to the measured current is called the primary winding; the winding connected to the measuring instrument is called the secondary winding. The ratio of the primary winding current I1 to the secondary winding I12 current is called the actual current ratio K. The current ratio when the current transformer operates at rated current is called the rated current ratio of the current transformer, denoted by Kn.

CREDOELEKTRO electrical component composition

Printed circuit boards mainly consist of pads, vias, mounting holes, traces, components, connectors, copper pours, and electrical boundaries. (1) Pads: Metal holes used for soldering component leads. (2) Vias: Include metalized and non-metalized vias; metalized vias are used to connect component leads between layers. (3) Mounting holes: Used to secure the circuit board. (4) Traces: Copper films forming electrical networks to connect component leads. (5) Connectors: Components used for connections between circuit boards. (6) Copper pours: Copper filling for ground networks, effectively reducing impedance. (7) Electrical boundary: Defines the dimensions of the circuit board; no components on the board may extend beyond this boundary.

CREDOELEKTRO electrical component classification

Fiber optic connectors can be classified by transmission medium into common single-mode and multimode connectors for silica-based fibers, as well as other types such as plastic optical fiber connectors. By connector structure, they can be classified into: FC, SC, ST, LC, D9, DIN, MU, MT, and various other forms. Among these, ST connectors are typically used at cabling equipment ends, such as fiber patch panels and fiber modules; whereas SC and MT connectors are typically used at network equipment ends. By fiber end-face shape, they are classified into FC, PC (including SPC or UPC), and APC; by fiber core count, they are divided into single-core and multi-core (such as MT-RJ). Fiber optic connectors are widely used and come in many varieties. In practical applications, we generally distinguish them based on their structural differences.

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