函数发生器用英语怎么说？

A function generator is a device that is used to generate electrical waveforms of different shapes and frequencies. It is commonly used in electronic testing and circuit design. The function generator can produce sine, square, triangle, and other waveforms, with adjustable frequency, amplitude, and offset. It is an essential tool for engineers and technicians who need to test and characterize electronic components and circuits. The function generator can also be used in educational labs to demonstrate various waveforms and concepts in electronics. Overall, it is a versatile instrument that plays a crucial role in the field of electrical engineering.