【摘要】 根据电压/频率转换和频率/电压转换的原理,采用LED—PIN光传输结构和相应的模拟集成电路,设计了一个低成本,传输精度可达0.1%的模拟信号光纤传输系统。该系统克服了实际传输模拟小信号的非线性,以及模拟信号A/D转换后采用数字光纤传输技术的成本较高等缺点,为多通道、远距离、低频模拟小信号提供了一个性能优越的传输方案。更多还原

【Abstract】 Based on the principles of voltage-frequency conversion and frequency-voltage conversion,with the use of LED—PIN optical transmission structure and corresponding integrated circuits,the development of an analog-signal optical fiber communication system with low cost,and transmission precision reached 0.1 % has been successfully achieved.This system solves disadvantages such as the nonlinear distortion of weak analog-signal’s transmission;the greatly high cost of A/D converter digital optical fiber transmission technology and so on.It provided a predominant transmission scheme for multi-channel,long distance and low-frequency weak analog-signal.更多还原