The main function of welding control module is current sampling, digital filtering, computing current effective value, while PID control module mainly processes AD conversion value and computes the variable quantity of pilot angle of SCRs and re-adjusts the angle. 焊接控制模块主要实现电流采样、数字滤波、计算电流有效值,PID控制模块主要对电流的A/D转换值进行计算,最终得到控制角的变化量,重置晶闸管控制角。
A Detecting System of Spot Welding Current Effective Value Based on MSP430 基于MSP430的点焊电流有效值检测系统
This design can measure effective value of voltage and effective value of electric current, active power, reactive power, power factor, effective value of voltage base-wave, total partial-wave and so on. 本设计可测量电压有效值、电流有效值、有功功率、无功功率、功率因数、电压基波及总谐波的有效值等一系列参数;
This regarding the current research and the formulation reasonable effective industrial structure adjustment policy, practically advances the agriculture and the rural economy continues to develop has the important guiding sense and the practical application value. 这对于当前研究和制定合理有效的产业结构调整政策,切实推进农业和农村经济持续发展具有重要的指导意义和实际应用价值。
Departing from calculated formula of periodic current and voltage effective value, two frequently sinusoidal pulse waves in electronic circuit have been analyzed. The analysis process is simple. This paper has some reference value for solving technical problem. 本文从周期性电流和电压有效值的计算公式出发,分析了电子电路中两种常见的正弦脉冲波,分析过程简单明了,对解决有关技术问题有一定借鉴价值。
Digital Measure of Welding Current Effective Value Using Microcomputer 焊接电流有效值采用微型计算机处理的快速测定法
This paper expounds some difficult points in learning the alternating current of electrical engineering such as the effective value of AC, the functions of electrical inductance and capacitance on AC, the working principle of induction-motor and the transmit electricity. 对电工学中有关交变电路学习的一些难点,如交流电的有效值,电感、电容对交变电流的作用,感应电动机的工作原理及输电等进行了阐述。
This method makes the current network data analyzer more effective and more convenient to use, it enhance the practical value of the whole system. 本方法使原有的网络数据关联分析器更加完善,有效,使用也更加方便,提高了原系统的实用价值。
The results of the study indicate that based on EVA human capital equity current value measurement model is effective response to human capital and the relationship between the enterprise value. 研究结果表明基于EVA人力资本股权当期价值计量模型有效的反应了人力资本与企业价值之间的关系。