Muhlbauer electrical components Germany Muhlbauer model Muhlbauer price

Muhlbauer electrical component is a current-limiting element. After connecting the resistor in the circuit, the resistance value is fixed, generally with two pins, and it can limit the current magnitude through the branch to which it is connected. A resistor whose resistance cannot be changed is called a fixed resistor. A resistor whose resistance can be changed is called a potentiometer or variable resistor. An ideal resistor is linear, meaning the instantaneous current through the resistor is proportional to the applied instantaneous voltage. Variable resistors used for voltage division. One or two movable metal contacts are pressed tightly against the exposed resistive body. The contact position determines the resistance between either end of the resistive body and the contact. There is a definite functional relationship between terminal voltage and current. It is a two-terminal device that reflects the ability to convert electrical energy into other forms, represented by the letter R, with the unit Ohm Ω. Actual devices such as light bulbs, heating wires, and resistors can all be represented as resistor elements. The resistance value of a resistive element is generally related to temperature, material, length, and cross-sectional area. The physical quantity measuring the extent to which resistance is affected by temperature is the temperature coefficient, defined as the percentage change in resistance value when the temperature increases by 1 ℃. The main physical characteristic of resistance is converting electrical energy into thermal energy; it can also be said to be a dissipative element, generating internal energy when current passes through it. Resistors usually play the role of voltage division and current shunting in circuits. For signals, both AC and DC signals can pass through resistors.

Muhlbauer electrical component classification

1, classified by operating nature, can be divided into transmitting antennas and receiving antennas. 2, classified by application, can be divided into communication antennas, broadcast antennas, TV antennas, radar antennas, etc. 3, classified by directionality, can be divided into omnidirectional antennas and directional antennas, etc. 4, classified by operating wavelength, can be divided into ultra-long wave antennas, long wave antennas, medium wave antennas, short wave antennas, ultra-short wave antennas, microwave antennas, etc. 5, classified by structural form and working principle, can be divided into wire antennas and aperture antennas, etc. Characteristic parameters describing antennas include radiation pattern, directivity coefficient, gain, input impedance, radiation efficiency, polarization, and bandwidth. 6, classified by dimension, can be divided into two types: (1) One-dimensional antennas consist of many wires, which are either straight lines like those used in mobile phones, or some clever shapes, like the old rabbit ear antennas used on TVs before cable appeared. Monopole and dipole antennas are the two most basic one-dimensional antennas. (2) Two-dimensional antennas: diverse variations, including patch (a square piece of metal), array (a bundle of patches organized in a two-dimensional pattern), horn, and dish. 7, antennas can be divided into three major categories based on usage scenarios: handheld transceiver antennas, vehicle-mounted antennas, and base station antennas. Handheld transceiver antenna: an antenna for personal use with handheld walkie-talkies, commonly divided into rubber antennas and telescopic antennas. Vehicle-mounted antenna: refers to communication antennas originally designed for installation on vehicles; the most common and widely applied type is the suction cup antenna. Vehicle-mounted antenna structures also include shortened types, quarter-wavelength, center-loaded, five-eighths wavelength, and double half-wavelength antennas. Base station antenna: plays a very critical role in the entire communication system, especially as communication hubs. Commonly used base station antennas include fiberglass high-gain antennas, four-ring array antennas (eight-ring array antennas), and directional ant

Muhlbauer electrical component function

A relay is an automatic switching component with isolation functions, widely used in remote control, telemetry, communications, automatic control, mechatronics, and power electronic equipment, and is one of the most important control components. Relays generally have a sensing mechanism (input part) capable of responding to certain input variables (such as current, voltage, power, impedance, frequency, temperature, pressure, speed, light, etc.); an actuating mechanism (output part) capable of implementing "on" and "off" control of the controlled circuit; and between the input and output parts of the relay, there is an intermediate mechanism (drive part) for coupling isolation of the input quantity, functional processing, and driving the output part. As a control component, relays have the following functions in summary: (1) Expand control range: For example, when the control signal of a multi-contact relay reaches a certain value, it can simultaneously switch, disconnect, and connect multiple circuits according to different forms of contact groups. (2) Amplification: For example, sensitive relays and intermediate relays can control high-power circuits with a very small control quantity. (3) Signal integration: For example, when multiple control signals are input into a multi-winding relay in a prescribed form, they are compared and integrated to achieve the predetermined control effect. (4) Automatic, remote control, monitoring: For example, relays on automatic devices, together with other electrical appliances, can form program control circuits to achieve automated operation.

Muhlbauer electrical component structure

For rubber and plastic power supply cables, copper cores are preferred for power, lighting, and internal installation of electrical equipment; compacted stranded cores are recommended for large cross-section conductors; conductors for fixed installation generally adopt Class 1 or Class 2 conductor structures. Insulation materials generally include natural styrene-butadiene rubber, polyvinyl chloride (PVC), polyethylene, and nitrile-PVC compounds; heat-resistant power cables use PVC with a temperature resistance of 90 ℃. Sheath materials generally include PVC, cold-resistant PVC, ant-proof PVC, black polyethylene, and neoprene rubber. Black polyethylene and neoprene sheathed power cables are suitable for extreme cold resistance and outdoor overhead laying. In environments with external forces, corrosion, and humidity, power cables with rubber or plastic sheaths can be used. Rubber and plastic flexible power cables use copper cores with a flexible structure, consisting of stranded single wires; flexible conductors generally adopt Class 5 or Class 6 conductor structures. Insulation materials generally include natural styrene-butadiene rubber, PVC, or soft polyethylene plastic. The cabling lay ratio multiplier is small. The outer protective layer uses cotton yarn braiding to prevent overheating and damage to the insulation layer. To facilitate use and simplify production processes, a three-core balanced structure is adopted, saving production hours and improving efficiency. Shielded insulated power supply cable conductors are allowed to be tinned in certain occasions; the surface coverage density of the shielding layer should comply with standards or meet user requirements; the shielding layer should be braided or wound with tinned copper wires; if an extruded sheath is added outside the shield, the shield may use soft round copper wire braiding or winding. To prevent internal interference between cores or pairs, individual phase shielding structures for each core (or pair) can be produced. General-purpose rubber-sheathed rubber power cable conductors use stranded soft copper wires with a flexible structure; paper wrapping is allowed on the surface of large cross-sections to improve bending performance. Insulation uses natural styrene-butadiene rubber, which has good aging performance. Outdoor product rubber uses neoprene or a neoprene-based mixed rubber formula. Mining rubber power cable conductors use copper cores with a flexible structure, consisting of stranded single wires: flexible conductors generally adopt Class 5 or Class 14 conductor structures. Insulation materials generally use rubber. The cabling lay ratio multiplier is small. Many products use metal braiding to uniform the electric field and improve the sensitivity display of insulation status. There is a thicker outer sheath, and color coding is performed underground in mines so that construction personnel understand the different voltage levels of the rubber power cables.

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