The real-time signal acquisition with AC-sampling technology overcomes the short comings of bad stability and big error in DC-sampling.
由于采用交流采样技术,实现了信号的实时采集,克服了直流采样误差大和稳定性差的缺点。
This paper introduces the principle and characteristic of the air-core coil current transformer, designs AC-sampling and processing circuit, and introduces the process of software detail.
介绍了空心线圈电流互感器的工作原理和特点,设计了适于此种互感器的交流采样和处理电路,详细介绍了软件的处理过程。
Imaginary load method and real load method can be used to test AC sampling measurement device of integrated substation automation.
变电站综合自动化交流采样测量装置可采用虚负荷法和实负荷法检测。
The sampling rate of a data acquisition system (for ac signals) is very important.
数据采集系统的采样率(对AC信号)是十分重要的。
The principle with realized process of AC sampling methods are described in brief.
简述了交流采样法的原理及实现过程;
Ac sampling measurement unit has better accuracy and stability as the online measuring instrument of the electrical parameters of power network.
交流采样测量装置作为电网电测量参数的在线测量仪器,具有较好的准确度和稳定性。
The paper presents the principle and mathematical model of data AC sampling of the telecontrol equipment.
本文介绍了远动装置数据交流采样的原理及数学模型。
This paper introduces the checking methods of the measuring devices adopting AC sampling mode, and analyses the appropriate cases these methods are used in.
为此重点介绍了对交流采样测量装置的校验方法:现场实负荷校验及虚负荷校验; 并对校验方式的适用情况进行了分析。
This paper introduces the AC sampling arithmetic and emphasizes the study of measurement arithmetic under the unbalanced and distorted condition.
本文研究和给出电气量测量交流采样的算法,着重研究三相不平衡及波形畸变工况下无功功率的测量算法。
Several algorithms for AC sampling are analyzed and the appropriate one is used in the digitization platform for industrial production.
以工业安全生产数字化平台为研究背景,分析了几种交流采样算法,并根据实时性和精度要求选用适宜的算法;
Through discussing the samples of ac signal, the basic method to solve spectrum leakage is pointed out, which is to guarantee the same pace between signal frequency and sampling frequency.
通过对交流电信号采样的讨论,指出解决频谱泄漏的问题的基本方法是保证信号频率与采样频率同步。
An AC power converter that based on a novel mixed sampling method, the principle of the sampling power measurement, and the power measurement algorithm and its measurement errors are described.
提出了一种混合采样的交流功率转换器,叙述了该种采样功率测量的原理,推导了功率测量的算法和功率测量误差。
According to the regulation method used in AC sampling for telecontrol equipment, this paper introduces the fast setting method using software to regulate for AC sampling parameters.
针对目前电力系统远动装置交流采样通常使用的调节方法,提出采用软件调节的方法对交流采样参数进行快速整定。
This article introduces one comparative simpler method based on PIC MCU driving servo system of AC synchronizer and the applied new calculating methods, driving principle, sampling technique.
本文介绍一种基于PIC单片机驱动交流同步器随动系统最简单的方法,以及采用的新计算方法、驱动原理、采样技术。
This paper demonstrates an asynchronous sampling scheme, which can eliminate the restriction of the synchronous sampling requirement, for the measurement of the active power of the ac signal.
本文提出了旨在消除同步采样条件限制的交流信号有功功率测量的异步采样方法。
The result of experiments indicates that by adopting AC sampling method, the accuracy and stability of the system have been enhanced, and the hardware circuits are simplified.
实验结果表明,采用交流采样方法提高了系统的精度和稳定性,简化了硬件电路。
T3 on sampling signal panel is sampling transformer, which can convert primary voltage (0 ~ 380v) of primary transformer into 0 ~ 10v AC voltage.
取样信号板上T3为取样变压器,将整流变压器一次电压(0 ~ 380v)变为0 ~10v交流电压。
The paper introduces the principle of the two-point sampling algorithm and programming idea of AC sampling in a power station monitor system, and presents some chief program code.
介绍了电站监控系统中交流采样的两点采样算法和程序设计思路,并给出了部分主要程序代码。
The paper introduced a design and realization of direct sampling of AC Voltage and current based on a single chip micro - computer and used PLL CD4046 to realize phase Angle sampling.
本文介绍了以单片机为基础的交流电压、电流直接采样的设计与实现并用锁相环CD 4046来实现相位角的采样。
The AC sampling is carried out testing the AC signal based on the certain regulation, and desired the values of the AC signal based on the certain mathematical method.
交流采样是按一定规律对被测信号的瞬时值进行采样,再用一定的数值算法求得被测量的值。
The design and application of a method, which is used in AC sampling unit, for dynamic adjusting synchronous-sampling-time-value is introduced.
介绍了一种应用于交流采样单元中的动态采样间隔调整法的设计与实现。
We can realize the control to the button state, Sampling and determine for parameters, the output and communication. And can complete the DC to AC conversion smoothly.
实现了对按键状态、参数采样和判定、输出及通信的有效控制,顺利地完成了由直流到交流的转换。
The present invention also discloses a AC-DC converter controllers, including the primary sampling circuits and digital compensator;
本发明还公开了一种AC-DC变换器的控制器,包括原边采样电路和数字补偿器;
SVC high precision automatic AC manostatSummary SVC series single-phase high precision automatic AC manostat consists of contact voltage switch, sampling control circuit and safe motor.
概述 SVC系列单相高精度全自动会谈稳压器是由接触调压器、取样操纵电路和伺服电机合成;
SVC high precision automatic AC manostatSummary SVC series single-phase high precision automatic AC manostat consists of contact voltage switch, sampling control circuit and safe motor.
概述 SVC系列单相高精度全自动会谈稳压器是由接触调压器、取样操纵电路和伺服电机合成;
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