What are the symptoms of a faulty coupler?

[Eva]

Symptoms of a faulty coupler include: the car may experience weak acceleration, rough gear shifting, and in severe cases, the car may fail to start. In microwave systems, it is often necessary to divide a microwave power into several paths proportionally, which is a power distribution issue. The component that achieves this function is called a power distribution component, or coupler, mainly including: directional couplers, power dividers, and various microwave branch components. An optoelectronic coupler is an electrical-optical-electrical conversion device that transmits electrical signals using light as the medium, consisting of a light source and a light receiver. The light source and the light receiver are assembled in the same sealed housing, separated by a transparent insulator. The pins of the light source serve as the input, while the pins of the light receiver serve as the output. Common light sources include light-emitting diodes, and light receivers include photodiodes and phototransistors.