DRAGO Messtechnik electrical components Germany DRAGO Messtechnik models DRAGO Messtechnik prices

DRAGO Messtechnik electrical components are wires that transmit current. Current transmission is typically point-to-point. Power cords can be classified by use into AC AC power cords and DC DC power cords. Typically, AC power cords carry higher-voltage alternating current; due to the higher voltage, these cables require unified standards and safety certification before formal production. In contrast, DC cables basically carry lower-voltage direct current, so safety requirements are not as strict as for AC cables. However, for safety reasons, countries still require unified safety certification.

DRAGO Messtechnik electrical component types

Common thermocouples can be divided into two main categories: standard thermocouples and non-standard thermocouples. Standard thermocouples are those for which national standards specify the relationship between thermoelectric potential and temperature, permissible errors, and have a unified standard reference table; they have compatible display instruments available for selection. Non-standardized thermocouples do not match standardized thermocouples in terms of usage range or magnitude, generally lack a unified reference table, and are mainly used for measurements in certain special applications. Theoretically, any two different conductors (or semiconductors) can be paired to form a thermocouple, but as practical temperature-sensing elements, they are subject to multiple requirements. To ensure reliability in engineering technology and sufficient measurement accuracy, not all materials can form thermocouples. The basic requirements for thermocouple electrode materials are generally: 1, stable thermoelectric properties within the temperature measurement range, not changing with time, sufficient physical and chemical stability, and resistance to oxidation or corrosion; 2, small resistance temperature coefficient, high electrical conductivity, and low specific heat; 3, large thermoelectric potential generated during temperature measurement, with a linear or nearly linear single-valued functional relationship between thermoelectric potential and temperature; 5, good material reproducibility, high mechanical strength, simple manufacturing process, and low cost.

DRAGO Messtechnik electrical component features

Utilizing existing DIN rail terminal block frame screw connection technology and adding circuits composed of electronic components, optoelectronic transmission coupling is achieved. The core of automatic control is that the control unit must be reliably isolated from various sensors and actuators to avoid interference. Sanmenwan WUKG3 opto-isolated terminals can effectively perform this function, ensuring that field signals match the low voltage required by electronic control devices. They can also serve as interface components between peripheral equipment for process control and control, signal, and regulator devices, and are suitable for different voltage and power ranges. Opto-isolated terminals offer advantages such as low signal loss at the control end, high switching frequency, no mechanical contact bounce, wear-free switching, high insulation voltage, resistance to vibration, independence from position, and long service life, leading to their widespread application in the field of automatic control.

DRAGO Messtechnik electrical component structure

Inductors are generally composed of a bobbin, winding, shield, encapsulation material, and magnetic core or iron core. 1, Bobbin: The bobbin refers to the support for winding the coil. For some 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 its inductance. Bobbins are usually made of plastic, bakelite, or ceramic, and can be made into different shapes according to actual needs. Small inductors (such as color-coded inductors) generally do not use a bobbin, but instead wind the enameled wire directly onto the magnetic core. Air-core inductors (also known as former-less coils or air-core coils, mostly used in high-frequency circuits) do not use a magnetic core, bobbin, or shield; instead, they are wound on a mold first, then the mold is removed, and a certain distance is maintained between the turns of the coil. 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 come in two forms: close-wound (wires are wound turn by turn adjacent to each other) and spaced-wound (a certain distance is kept between each turn of wire during winding); multi-layer windings include layered flat winding, random winding, honeycomb winding, and others. 3, Magnetic Core and Magnetic Rod: Magnetic cores and rods are generally made of materials such as nickel-zinc ferrite or manganese-zinc ferrite, and come in various shapes such as "I" shape, cylindrical, cap-shaped, "E" shape, pot shape, etc. 4, Iron Core: Iron core materials mainly include silicon steel sheets, permalloy, etc., and their shape is mostly "E" type. 5, Shield: To prevent the magnetic field generated by some inductors during operation from affecting the normal operation of other circuits and components, a metal shield is added (such as the oscillator coil of a semiconductor radio). Inductors with shields will increase coil losses, reducing the Q value. 14, Encapsulation Material: Some inductors (such as color-coded inductors, color-ring inductors, etc.) are sealed with encapsulation material after winding the coil and magnetic core. Encapsulation materials include plastic or epoxy resin.

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