ac current source meaning in English
交流电源
Examples
- This dissertation presents a controllable and programmable ac current source with high stability on both frequency and output current , which consists of a pfc rectifier and a spwm full - bridge inverter . the apparatus is mainly applied to test the heat characteristics of breakers
本论文所研制的稳流源是一种恒频、恒流的交流电流源，由pfc整流器、 spwm全桥逆变器组成，主要用于断路器的热特性测试。 - In order to eliminate the influences caused by temperature , electrode - polarization and autoeciousness - capacitance , the traditional instrument has added complicated circuits so that it cause such shortcomings as big error , time - retardation and a relatively small scope . through the problems caused by 2 - probe electrode and ac current source , a new measuring circuit based on the excitation of bi - directional voltage pulse and the sensor of 4 - probe electrode is proposed , using single - chip to achieve auto - temperature compensation
作者在参阅国内外大量相关参考文献的基础上,从电导测试技术的原理性研究出发,分析了采用交流激励源、两电导电极为传感器的传统电导测试系统所面临的种种问题,提出并研制了一种基于双极性脉冲电压激励、以四电导电极为探头、运用单片机进行温度自动补偿的新型电导率测量系统。 - The main works are listed as follows : ( 1 ) based on the excitation of bi - directional current pulse technique , a new measuring circuit for weak variation of resistance was proposed for electrical resistance tomography . traditional ac current source is n ' t adopted as the exciting source . through fast bi - directional current switching , the polarization effects are eliminated
该电路主要优点如下：该电路没有采用传统的交流电流激励法作为系统的设计原理，而是通过快速的正负极性电流切换来削弱直流电流激励时激励电极的极化效应，使通过直流法来测量气液两相流的电阻微弱变化成为可能。