造气炉光纤高温传感器调理电路设计

The design of the regulating circuit of optical fiber pyrometic sensor for gas-making furnace

本文介绍了光纤高温传感器的调理电路,该电路采用积分型I/U转换、高阶滤波、自动稳零直流放大等方法从噪声中提取微弱信号,并且用V/F转换器制成了一个高性能、低价格的12位A/D转换器.

This papcr introduces the regulating circuit of optical fiber pyrometic scnsor, which uses I/u converse of integral type, low-pass filter and automatic-Zero calibralion direct-current amplified to extract mini-signal from noise. It also introduces a 12-bit A / D convertor with high capability, which is made by V / F convertor, And this type of A / D convertor is cheaper.