Signal sources with high accuracy and operational frequency are used in the fields of research and application of modern electronicsmeasuring technology.
在现代电子测量技术的研究及应用领域中，常常需要高精度且频率可调的信号源。
2
Photoelectric rotary encoder, which is also called photoelectric angel position sensor, is a kind of digital angle measuring device combining optics, mechanics and electronics.
光电轴角编码器，又称光电角位置传感器，是一种集光、机、电为一体的数字测角装置。
3
The system for measuring the Beam Coherence Polarization matrix (BCPM) relates to multiple disciplines of optics electronics and computation.