EAW electrical components Germany EAW model EAW price

EAW electrical components are devices that convert optical signals into electrical signals. Their operating principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon where electrons in a material absorb photon energy when light strikes certain substances, resulting in corresponding electrical effects. Based on the different manifestations of the photoelectric effect, it is classified into three categories: external photoelectric effect, internal photoelectric effect, and photovoltaic effect. Photoelectric devices include phototubes, photomultiplier tubes, photoresistors, photodiodes, phototransistors, and solar cells. The performance and characteristic curves of photoelectric devices are analyzed.

EAW electrical components composition

A two-terminal electronic component made of resistive material with a specific structure, used in circuits to limit current flow. Resistors with fixed resistance values are called fixed resistors. Those with variable resistance values are called potentiometers or variable resistors. An ideal resistor is linear, meaning the instantaneous current through the resistor is proportional to the applied instantaneous voltage. Some special resistors, such as thermistors, varistors, and sensitive elements, exhibit a non-linear relationship between voltage and current. Resistors are the most widely used components in electronic circuits, typically available in various series based on power rating and resistance value for selection by circuit designers. In circuits, resistors are mainly used to adjust and stabilize current and voltage, serving as shunts and voltage dividers, or as matching loads. Depending on circuit requirements, they can also be used for negative or positive feedback in amplifier circuits, voltage-to-current conversion, or as voltage/current protection elements during input overload. They can also form RC circuits, functioning as oscillation, filtering, bypass, differentiation, integration, and time constant elements.

EAW electrical components principle

A diesel engine drives the generator to operate, converting diesel energy into electrical energy. Inside the diesel engine cylinder, clean air filtered through the air filter mixes thoroughly with high-pressure atomized diesel injected from the nozzle. Under the compression of the upward-moving piston, the volume decreases, and the temperature rises rapidly to reach the ignition point of diesel. The diesel ignites, causing the mixed gas to burn vigorously, expand rapidly, and push the piston downward, known as "power stroke." A gasoline engine drives the generator to operate, converting gasoline energy into electrical energy. Inside the gasoline engine cylinder, the mixed gas burns vigorously, expands rapidly, and pushes the piston downward to perform work. Whether it is a diesel generator or a gasoline generator, each cylinder performs work in a specific sequence. The thrust acting on the piston is converted into force to rotate the crankshaft via the connecting rod, thereby driving the crankshaft rotation. By mounting a brushless synchronous AC generator coaxially with the prime mover's crankshaft, the rotation of the prime mover drives the generator rotor. Based on the principle of 'electromagnetic induction,' the generator outputs induced electromotive force, generating current through a closed load circuit.

EAW electrical components principle

Photoelectric sensors achieve control by converting changes in light intensity into changes in electrical signals. Generally, a photoelectric sensor consists of three parts: transmitter, receiver, and detection circuit. The transmitter emits a beam of light toward the target. The emitted light beam usually originates from semiconductor light sources, such as light-emitting diodes (LED), laser diodes, and infrared emitting diodes. The light beam is emitted continuously or with modulated pulse width. The receiver consists of photodiodes, phototransistors, and solar cells. Optical components such as lenses and apertures are installed in front of the receiver. Behind it is the detection circuit, which filters out valid signals and applies them.

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