Low noise fixture and phase average technique provide the amplitude and spurious resonance in frequency domain.
在频率域内,低噪声定位装置和相位平均技术可以提供振幅和假频谐振。
This paper presents a new adaptive phase selector with an adaptive resonance theory (ART) based neural network.
提出一种新的基于自谐振神经网络结构的自适应故障选相元件。
A new method is proposed in this paper, which is photoacoustics laser magnetic resonance (PALMR)in gas phase.
提出了气相光声激光磁共振的新方法,并作了理论解释。
Phase unwrapping is one of the most key steps in magnetic resonance imaging applications in which accurate phase is required.
相位展开是磁共振成像技术应用中最关键的环节之一,可以为磁共振的某些重要临床应用提供精确的相位信息。
When frequency is changed the corresponding current (in steady state amplitude and phase) is displayed in time domain. Resonance frequency can be found experimentally.
当频率改变时,电流响应(稳态下的幅度与相位)显示在时域分析中。
Method and device for measuring inhomogeneous magnetic field, method and device for phase calibration, and magnetic resonance image apparatus.
磁场非均匀性测量方法和设备,相位校正方法和设备,以及磁共振成像设备。
The paper studies digital control scheme of resonance inverter frequency-tracking based on all digital phase-locked loop.
本文主要研究了基于全数字锁相环的谐振型逆变器频率跟踪的数字化控制方案。
In a large range of resonance offsets, the efficiency of the phase cycling method has been tested experimentally.
在比较宽的频率偏置范围内从实验上检验了相位循环方法的有效性。
This text introduces operation principle and application of phase shift and resonance PWM controller UC3875.
文章介绍了移相谐振pwm控制器uc 3875的工作原理及应用。
Magnetic resonance imaging; in phase; Opposed phase; Signal intensity; VertebraL; Chemical shift.
脊椎;化学位移成像;同相位;反相位;磁共振成像;信号强度。
The frequency shifts of magnetic resonance lines brought about by phase changes are also studied.
我们还研究了相界两侧磁共振吸收线的频率变化。
By studying the theory and method of realizing inductive power transfer for moving electrical apparatus in detail, this paper designs the phase-shifting full-bridge series resonance converter.
文中详细分析了感应电能传输技术的理论和方法,进而设计出用于感应电能传输系统的移相全桥串联谐振逆变器。
PT breaking and ferro-resonance caused by single-phase grounding and PT saturation are common faults in medium-low voltage power networks, which make voltage abnormal.
在中低压电网中,PT断线、单相接地及由PT饱和引起的铁磁谐振均是多发性的故障,这些故障都能使电压异常。
The result shows that all optical control of transmissivity and phase shift of a fundamental beam is possible, based on resonance enhancement, through changing input intensity.
结果表明,通过改变入射光强,可以全光学控制基频光束的透射率和它的相移。
Based on the resonance reactor and the Magnetic Energy Recovery Switch (MERS), a novel single-phase AC-DC converter is designed.
将谐振电抗器和磁能恢复开关引入到单相ac - DC变换器中,设计了一种新颖的混合单相ac - DC变换器。
The principle and structure of the resonance-proof three phase voltage transformer used in the neutral insulation system are discussed. The connection errors brought about in operation are presented.
论述了中性点绝缘系统中采用的三相防谐振电压互感器的原理与结构,并指出了运行中容易发生的接线错误。
Water and fat separated image-forming method, magnetic resonance imaging apparatus, reference peak phase detection method thereof.
水和脂肪的分离图像的形成方法,磁共振成像设备,参考峰的相位测定方法和参考峰的位置测定方法。
AIM: to measure the flow volume of pulmonary arteries by using phase contrast magnetic resonance imaging (MRI) and to investigate the values of phase contrast MRI in assessing pulmonary perfusion.
目的:采用相位对比法磁共振成像(MRI)测量肺动脉血流量,探讨并评价两肺的血流灌注情况。
In ungrounded distribution system the single-phase-grounding and the ferro-resonance caused by the PT (Potential Transformer) are of the frequent accidents.
在中性点非直接接地电网中,单相接地及由电压互感器(PT)引起的谐振过电压均是多发性的事故。
Then the idea of integral control of automatic resonance and single-phase earth faulted line selection was put forward.
并在此基础上给出了补偿电网中消弧线圈自动调谐与单相接地故障选线一体化的综合控制思路。
It could ensure the best efficiency by making the output frequency to trace the resonance frequency with the frequency tracing technique and phase-shifted control.
本文利用频率跟踪和移相控制技术,使电源输出频率跟踪负载谐振频率变化,以保证最佳加热效率。
It could ensure the best efficiency by making the output frequency to trace the resonance frequency with the frequency tracing technique and phase-shifted control.
本文利用频率跟踪和移相控制技术,使电源输出频率跟踪负载谐振频率变化,以保证最佳加热效率。
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