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。
Photoelectric rotary encoder, which is also called photoelectric angel position sensor, is a kind of digital angle measuring device combining optics, mechanics and electronics.
介绍了应用日本岛津pda- 5017型光电直读光谱仪，采用脉冲分布测光法(PDA法)，测定了中低合金钢的碳和硫。
Carbon and sulfur in low and middle alloy steel were determined with SHIMADZU PDA - 5017 direct reading spectrometer by using the PDA (Pulse height Distribution Analysis) method.
电缆或光缆在特定条件下燃烧的烟密度光测系统由光源、硅光电池接受器和计算机系统组成。
Smoke density measurement system of cables burning under certain conditions by the light source, the silicon photocell receiver and computer system.
高频调制参考光和被测光信号是通过半透半反光镜照 射到光电传感器上。
The high-frequency modulation reference light and the optical signal to be tested are reflected to the photoelectric sensor by a semi-permeable semi-reflector.
高频调制参考光和被测光信号是通过半透半反光镜照 射到光电传感器上。
The high-frequency modulation reference light and the optical signal to be tested are reflected to the photoelectric sensor by a semi-permeable semi-reflector.
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