A method is presented based on measuring the sound wave transfer time between transmitter and receiver by signals cross-correlation analysis to reconstruct two dimensional temperature profile in furnace by least square regularizing algorithm. 论述了一种利用信号互相关分析方法计算声波在锅炉内的传播时间,在此基础上利用最小二乘算法重建炉膛断面温度场,进行了温度场重建仿真。
The transmitter adopts DDS to generate local Larmor frequency for the region. A high-power switching circuit generates the high-power square wave, which resonates in the transmitter coil and the resonant capacitor to achieve high-power transmission. 该发射机采用DDS产生当地拉莫尔频率,通过大功率开关电路产生功率方波,由发射线圈和谐振电容产生谐振,实现大功率发射。