微秒

用PC定时器实现步进电机控制脉冲微秒级精确定时的方法

A New Approach for Step Motor Pulse Microsecond Timer With PC

在数据传输过程中，运用WindowsAPI函数实现了微秒级定时。

A microsecond timer developed by Windows API function is used during the transmission .

脉冲通常以微秒计。

The pulse is usually timed in microseconds .

系统IP核配合处理器端协议引擎进行了测试，测试精度达到微秒量级。

The IP core with the protocol engine was tested , the precision of this system could achieve microseconds .

samplingrate（以微秒为单位）决定调控器间隔多长时间检查处理器利用率，以便决定设置什么频率。

The sampling_rate , measured in microseconds , determines how often the governor will look at the processor utilization so that it can determine which frequency to set .

（我们在f1函数中花费的时间为3143微秒，userdefined调用了该函数，而userdefined反过来是从主要部分调用的。）

( We spent 3143 microseconds in f1 function , which was called by user_defined , which in turn was called from the main section )

低延迟访问：5&10微秒的RPC

Low-latency access : 5-10 micro-second RPC

报道了以高速MOSFET作开关进行的亚微秒强流刚管调制器技术的相关试验研究。

The test research of solid-state modulator principle employing high-speed MOSFET switches and inductive-adder output was presented .

系统利用GPS同步时钟模块进行脉冲计数，DSP实时读取通信时间，控制时间精度在微秒以下。

The system is pulse-counted by GPS satellite synchronous clock module . DSP reads communication time in real-time in order to control the time precision under microsecond .

实验结果证明，本文所做的改进使Linux能够在基本不增加系统负担的情况下调度微秒级的实时任务。

The experiment result proves that the improvement enables Linux to scheduling the realtime task of microsecond grade in the situation of not increasing system load .

同时，提出了一种基于GPS的SOE时钟同步方法，使UWinSOE系统同步精度达到微秒级。

At the same time , a new clock synchronization method based on GPS was proposed with its precision up to microsecond .

且由于现有的分压器和母线PT响应时间太长（一般在几百微秒），因而无法监测雷击过电压。

Furthermore it is can not record the lightning overvoltage due to the long response time of voltage divider and bus bar PT .

更深入的是，对RUP的主要变更包含对开发过程的视图的更微秒的改变。

More pervasively , the primary changes to RUP consist of a more subtle change of perspective on the development process .

DataPowerXM70“FastPath”潜在的吞吐量达到了每秒数百万条消息，但只产生微秒级的延迟。

The DataPower XM70 " Fast Path " has potential throughput rates in the millions of messages per second with microsecond latency .

例如，使用快速的现代处理器时，Linux可以提供20μ微秒的典型中断响应，但有时候响应会变得很长。

For example , using a fast modern processor , Linux can provide a typical interrupt response of20 μ s , but occasionally the response can be much longer .

这三个等级的执行顺序将改善RT调度延迟，并且可以粗略测量为几十微秒。

RT scheduling latencies have been improved by three orders of magnitude and can now be measured roughly in tens of microseconds .

本文描述了一台无调场直接检波式0.2微秒高时间分辨率的ESR谱仪的设计与研制。

A 0.2 μ s time resolution ESR spectrometer with direct detection and with-out magnetic field modulation is described in this paper .

大部分实时OS都能够在数十微秒内执行这种抢占机制，这仅会影响到具有极高的计时需求的应用程序。

Most real-time OSs can perform this preemption in on the order of tens of microseconds , which only affects applications with extremely sensitive timing requirements .

IEEE1588标准定义的PTP，可实现亚微秒级时钟同步精度。

PTP , defined in IEEE 1588 standard , can achieve sub-microsecond accuracy .

分别利用计算机的高精度计数器和CPU时间戳计数器结合Windows多线程优先级调度机制，实现了两种高精度的微秒级定时器。

Then respectively using high-resolution performance counter and CPU time stamp counter develop two microsecond level precision timer , each depends on multithreading and priority based schedule mechanism of Windows .

应用VISUALSTUDIO2003开发了微秒至毫秒级定时应用程序，并通过提高定时线程优先级的方法，改善程序定时精度。

An application , in which timers from microseconds to milliseconds are included , is developed by Visual Studio 2003 . Meanwhile , the accuracy of the soft-timer is improved by boosting the priority of the thread .

PTP技术可方便灵活地应用于分组网络中，同步精度可达亚微秒级，将成为GPS的有效替代。

PTP can be applied in a packet network easily and flexibly with submicrosecond-level synchronization accuracy , and will become an effective alternative to GPS .

短路液桥爆断前几百微秒内所积聚的能量，直接影响着短路过渡CO2焊飞溅水平的大小。

The energy accumulated within hundreds of microseconds before the rupturing time point of the short circuit liquid bridge influences directly the spatter level in CO 2 short circuit transfer welding .

大气压空气脉冲激励均匀放电在聚合物薄膜处理方面具有优势，采用亚微秒脉冲激励DBD产生均匀等离子体对聚四氟乙烯薄膜进行了初步表面改性实验与分析，为工业应用奠定基础。

Preliminary polymer film processing experiments and analysis for PTFE has been done adopting homogeneous DBD plasma excited sub-microsecond pulse .

利用PIC（Particleincell）方法，结合实验装置的几何结构和实验结果，采用动态开关模型，对微秒等离子体断路开关和电感负载间的功率流特性进行了研究。

Power flow characteristics between a plasma opening switch ( POS ) and an inductive load were investigated via particle-in-cell simulations based on the experimental parameters . A dynamic switch model was adopted to simulate the POS.

LSE很早以前就抱怨速度和可靠性，几百微秒才能处理一笔交易。

The LSE had long been criticised on speed and reliability , grappling with trading speeds of several hundred microseconds .

TVS用于快速精确控制电流源的投入时刻，其导通时延在微秒量级。

TVS is applied to control the fast switching time on the making current accurately , and it has a delay-time conduction of several microseconds .

精度：gettimeofday精度是固定在微秒级别上的。

Precision : gettimeofday precision is fixed to the microsecond .

IBMsolidDB可以提供每秒数万至数十万事务的吞吐率，并且始终可以获得微秒级的响应时间（或延时）。

IBM solidDB provides throughput measured in the range of tens-to-hundreds of thousands of transactions per second while consistently achieving response times ( or latency ) measured in microseconds .

普通的时间量接近500微秒，而且必须对最大的时间量进行监控以保证它们能够为RT应用程序提供可接受的暂停时间。

Mean quantum time should be close to500 microseconds , and the maximum quantum times must be monitored to ensure they fall within the acceptable pause times for the RT application .