针对火灾探测过程中的光电探测器输出的微弱信号设计了一个微变信号提取放大电路。
A new circuit has been designed and developed for picking up and amplifying the weak signals of a photoelectric detector in fire detecting system.
本系统属于主动型报警系统，由光电二极管、发光二极管、放大电路及报警电路组成。
This type of system is active warning systems from photodiode, luminous diode, the circuit and was enlarged circuit.
光探测及放大电路实现信号的光电转换并放大、滤波，得到清晰的电压信号。
Optic detecting and amplifying circuit makes the optoelectronic signals exchange, amplify, filter and get the voltage signals.
通过混合集成型结构光学拾音器的光学设计和芯片设计，制作了包含微光学棱镜、光电探测器和信号放大电路的混合集成型光学拾音器。
A hybrid integrated optical pickup device was designed and prepared through optical design and chip design. It consists of micro lens, photo detectors and CMOS integrated circuits.
同时，已经研制了新的低躁声光电信号放大电路，将用于以后的灵敏度改进。
We also developed a new low-noise photodiode signal amplification circuit to further improve sensitivity.
设计了与CMOS工艺兼容的光电单片接收机电路，其中包括光电探测器、前置放大器和主放大器。
Circuits of CMOS-process-compatible monolithic photoreceivers are designed. The circuits include photodetector, pre-amplifier and main amplifier.
设计电光采样系统整体结构，设计光机械延迟线结构、电光采样结构、光电转换及微电流放大电路、锁相检测模块；
The structure of the EOS system is designed, including opto-mechanical delay line (OMDL), embodiment of electro-optic modulator, and lock-in detection module.
采用同相放大电路成功实现了对微弱调制光电信号的接收，并采取简单但行之有效的方法滤除了偏置电压引入的噪声干扰；
The laser beam modulation frequency has been increased to achieve better accuracy. The circuit has been designed in a simple manner to reduce unexpected error and debugging complexity.
电信号由与光电二极管集成在一起的互阻放大电路放大，再通过限幅放大电路进一步放大。
The electrical signal is amplified by a transimpedance amplifier which is integrated with the photodiode, and is amplified further by a limiting amplifier.
电信号由与光电二极管集成在一起的互阻放大电路放大，再通过限幅放大电路进一步放大。
The electrical signal is amplified by a transimpedance amplifier which is integrated with the photodiode, and is amplified further by a limiting amplifier.
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