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校正光焦度的元件(Ⅱ)
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作者 M.M.鲁西诺夫 陆汉民 《光学技术》 CAS CSCD 1991年第1期12-15,共4页
一、同心透镜场曲的变化可看作是系统视场边缘像点和轴上像点的某种位移,其各点的位移量是不同的。当初始系统的位置固定时,像的位移将与某个光焦度的增补有关。当然,这里初始系统像差的改变,一般是可预料的。对那些已经校正像散的彗差... 一、同心透镜场曲的变化可看作是系统视场边缘像点和轴上像点的某种位移,其各点的位移量是不同的。当初始系统的位置固定时,像的位移将与某个光焦度的增补有关。当然,这里初始系统像差的改变,一般是可预料的。对那些已经校正像散的彗差的基础系统来说,希望这些像差的校正不再受到破坏。这时,当初始的基础系统存在负的场曲时。 展开更多
关键词 光焦度 校正元件
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The KLOE Online Calibration System
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作者 E.Pasqualucci 《International Conference on Computing in High Energy and Nuclear Physics》 2001年第1期129-132,共4页
Based on all the features of the KLOE online software,the online calibration system performs current calibration quality checking in real time and starts automatically new calibration procedures when needed.Acalibrati... Based on all the features of the KLOE online software,the online calibration system performs current calibration quality checking in real time and starts automatically new calibration procedures when needed.Acalibration manager process controls the system,implementing the interface to the online system,receiving information from the run control and translating its state transitions to a separate state machine.It acts as a " calibration run controller"and performs failure recovery when requested by a set of process checkers.The core of the system is a multi-threaded OO histogram server that receives histogramming commands by remote processes and operates on local ROOT histograms.A client library and C,fortran and C++ application interface libraries allow the user to connect and define his own histogram or read histograms owned by others using an bool-like interface.Several calibration processes running in parallel in a destributed,multiplatform environment can fill the same histograms,allowing fast external information check.A monitor thread allow remote browsing for visual inspection,Pre-filtered data are read in nonprivileged spy mode from the data acquisition system via the Kloe Integrated Dataflow,privileged spy mode from the data acquisiton system via the Kole Integrated Dataflow.The main characteristics of the system are presented. 展开更多
关键词 KLOE在线校正元件 分布结构 探测器
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Design of C8051F350-based Intelligent Pressure Sensor
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作者 韩丽娜 陶安利 +3 位作者 李绍刚 柳军国 厉运周 李相众 《Journal of Measurement Science and Instrumentation》 CAS 2011年第2期157-160,共4页
In order to overcome the deficiencies of traditional pressure sensors, a kind of intelligent pressure sensors with temperature correction is designed. Qccording to the intelligent sensor system of composition and rang... In order to overcome the deficiencies of traditional pressure sensors, a kind of intelligent pressure sensors with temperature correction is designed. Qccording to the intelligent sensor system of composition and range of applications, with fully taking into account the parameters of the connection between of co-ordination, we chose a good usability, high reliability and low cost components composed of the entire measurement system, with controlling and dealing with in 80C51 miller, the system had the temperature and pressure parameters with automatic measurement, amplification, A/D conversion, the weak signal locked amplification, as well as PhaseSensitive Detection (PSD), common-mode signal rejection, the collected signal de-noising processing, cross-sensitivity of the decoupling and show the results. It also has a self-test, automatic temperature condition and on, site communications and other functions. 展开更多
关键词 pressure sensor Lock-in Amplifier 80C51F350 SCM hardware circuitry
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自动控制系统的综合与校正(下)
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作者 庄显义 《中国远程教育》 1983年第3期62-64,共3页
例3.已知:①系统的不可变部门的开环传递函数②系统应具有的指标:开环增益K≥100秒<sup>-1</sup>、无差度ν=1、超调量σ,≤25%。
关键词 反馈校正 希望特性 自动控制系统 超前校正 校正元件 串联校正 BODE图 中频段 相位迟后 可变部分
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自动控制系统的综合与校正(上)
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作者 庄显义 《中国远程教育》 1983年第2期39-42,共4页
校正元件加在前向通道之中称为串联校正。校正元件加在包围前向通道某一部分的局部反馈的反馈通道之中称为反馈校正。校正元件的设计就是按着一定的步骤,选取校正元件的结构形式,计算出校正元件的参数K<sub>0</sub>、T、α... 校正元件加在前向通道之中称为串联校正。校正元件加在包围前向通道某一部分的局部反馈的反馈通道之中称为反馈校正。校正元件的设计就是按着一定的步骤,选取校正元件的结构形式,计算出校正元件的参数K<sub>0</sub>、T、α,并找出实现校正元件的实际物理装置。一个不满足要求的实际系统附加上校正装置,就能够满足予先提出的各方面的指标要求。这种设计过程具有一定的试探性,设计好的自动控制系统是可以满足要求的,但不一定是最好的。 展开更多
关键词 校正元件 自动控制系统 相位迟后 动态指标 串联校正 正方案 BODE图 可变部分 校核 满足要求
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