Elektromaschinenbau electrical components Germany Elektromaschinenbau model Elektromaschinenbau price

Elektromaschinenbau electrical components are devices for detachable (active) connection between optical fibers. They precisely align the end faces of two optical fibers to maximize the coupling of light energy from the transmitting fiber into the receiving fiber, and minimize the impact on the system caused by their insertion into the optical link. This is the basic requirement for fiber optic connectors. To a certain extent, fiber optic connectors affect the reliability and various performance parameters of optical transmission systems.

Elektromaschinenbau electrical component features

The main characteristics of thermistors are: (1) high sensitivity, with a resistance temperature coefficient larger than that of metals; (2) wide operating temperature range; (3) small size, capable of measuring temperatures in gaps, cavities, and blood vessels within living organisms that other thermometers cannot measure; (4) easy to use; (5) easy to process into complex shapes and suitable for mass production; (6) good stability and strong overload capacity.

Elektromaschinenbau electrical component characteristics

Dynamic characteristics refer to the output behavior of a sensor when the input changes. In practical applications, the dynamic characteristics of a sensor are often expressed by its response to certain standard input signals. This is because the response to standard input signals can be easily determined experimentally, and there is a definite relationship between the response to standard input signals and the response to arbitrary input signals; knowing the former often allows inference of the latter. The most commonly used standard input signals are step signals and sinusoidal signals, so the dynamic characteristics of sensors are also commonly expressed by step response and frequency response.

Elektromaschinenbau electrical component principle

The thermistor will remain in a non-tripped state for long periods; when the ambient temperature and current are in the c region, the heat dissipation power of the thermistor is close to its heat generation power, so it may or may not trip. For a thermistor at the same ambient temperature, the tripping time decreases sharply as the current increases; at relatively higher ambient temperatures, the thermistor has shorter tripping times and lower holding and tripping currents. The PTC effect refers to a material exhibiting the PTC effect, i.e., the positive temperature coefficient effect, meaning only that the resistance of this material increases with rising temperature. For example, most metallic materials exhibit the PTC effect. In these materials, the PTC effect manifests as a linear increase in resistance with temperature, which is commonly referred to as the linear PTC effect. Non-linear PTC effect: Materials undergoing phase transition exhibit a phenomenon where resistance increases abruptly by several to more than ten orders of magnitude over a narrow temperature range, known as the non-linear PTC effect. A considerable variety of conductive polymers exhibit this effect, such as polymer PTC thermistors. These conductive polymers are very useful for manufacturing overcurrent protection devices. Polymer PTC thermistors are used for overcurrent protection and are often referred to as resettable fuses (hereinafter referred to as thermistors). Due to their unique positive temperature coefficient resistance characteristics, they are highly suitable as overcurrent protection devices. Thermistors are used in series in circuits, similar to conventional fuses. When the circuit operates normally, the thermistor temperature is close to ambient temperature, and its resistance is very low, so it does not hinder current flow when connected in series. However, when an overcurrent occurs due to a fault, the increased heat generation causes the thermistor's temperature to rise. When the temperature exceeds the switching temperature, the resistance increases dramatically, rapidly reducing the circuit current to a safe value. After the thermistor trips, the current in the circuit drops significantly; t is the tripping time of the thermistor. Due to the good design flexibility of polymer PTC thermistors, their temperature sensitivity can be adjusted by changing their switching temperature (ts), allowing them to provide both overtemperature and overcurrent protection. They are suitable for overcurrent and overtemperature protection of lithium-ion and nickel-metal hydride batteries. Influence of ambient temperature on polymer PTC thermistors: Polymer PTC thermistors are direct-heated, step-type thermistors. Their resistance change process is related to their own heat generation and dissipation conditions, so their holding current, tripping current, and tripping time are influenced by ambient temperature.

Weidou Intelligent Technology specializes in selling German Elektromaschinenbau connectors, Elektromaschinenbau switches, Elektromaschinenbau relays, Elektromaschinenbau controllers, Elektromaschinenbau plugs, Elektromaschinenbau sensors, Elektromaschinenbau resistors, Elektromaschinenbau capacitors, Elektromaschinenbau buses, Elektromaschinenbau modules, Elektromaschinenbau cables, Elektromaschinenbau power supplies, Elektromaschinenbau interfaces, Elektromaschinenbau gateways, Elektromaschinenbau circuit breakers, Elektromaschinenbau original imports from Germany. Customers are welcome to inquire and order.