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        安川變頻器H1000(CIMR-HB4A0091ABC)(CIMR-HB4A0150ABC)
        發布者:ddhc0061  發布時間:2024-05-13 17:01:08  訪問次數:

        安川變頻器H1000(CIMR-HB4A0091ABC)(CIMR-HB4A0150ABC)

        安川變頻器H1000(CIMR-HB4A0091ABC)(CIMR-HB4A0150ABC)

        安川變頻器H1000(CIMR-HB4A0091ABC)(CIMR-HB4A0150ABC)


        在關鍵控制系統中,比如衛星控制系統、飛機及機場控制系統、鐵路控制系統等,對系統的可靠性有苛刻地要求。在這些系統中,所有組件都要求有冗余設計,包括任何硬件及軟件環節,要求任何單點故障不影響系統正常運行,即使是關鍵節點故障,系統中其他部分也要求具備基本的應急功能。
        在系統中,抽象層次越高的節點,其支持更多的接口,包含更多的信息和處理邏輯,所以復雜度也越高。同時,復雜度越高的節點,支持冗余的難度越大。這就是硬件節點容易冗余,而軟件節點不容易冗余的原因。
        對冗余節點的最基本的要求是,在主節點發生故障時,備用節點自動接管主節點,完成所有的功能及提供的所有的服務。對冗余的更進一步的要求是,在主備節點切換的過程中,不允許有信息的丟失,切換過程中的發生的任何事件都不允許丟失。
        對冗余功能的性能要求分兩個方面,一個是主節點故障允許時間T1,也就是在主節點不能正常響應的多長時間后,才認為是主節點失敗,進入主備節點切換程序;另一個是備節點接管的時間T2,也就是備節點在決定要接管責任后,需要多長時間才能進入正常的操作狀態。這樣系統對該節點的故障允許時間T就是T1和T2之和。一般大型的控制系統中,在跟操作員直接相關的軟件節點層次,故障允許時間一般在秒級,比如在筆者參與的一個地鐵控制系統中,該時間要求是2秒。
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        HP / AGILENT E4438C ESG VECTOR SIGNAL GENERATOR w/ OPT 001 1E5 503 ABA
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        HP / Agilent E5040A Spectrum Measurement Module
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        HP /Agilent 54120/54121 Oscilloscope Sampling Microwave DC to 12,5 GHz 54120T
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        HP 1046A PROGRAMMABLE FLUORESCENCE DETECTOR
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        HP 11793A MICROWAVE CONVERTER
        HP 11848A Phase Noise Interface
        HP 11896A Polarization Controller
        HP 16194A High Temperature Component Test Fixture
        HP 16338A
        HP 16500B Logic Analyzer w/Timing Master, 4Timing Expanders & LAN Interface
        HP 1660CS/015 Logic Analyzer and Oscilloscope - 136 Channels, cables & leads
        HP 1673G 34 CHANNEL LOGIC ANALYZER
        HP 1680A 136Channel/800 MHz Logic Analyzer
        HP 3235 Switch / Test Unit
        HP 3245A universal source
        HP 3245A universal source/function generator - NIST calibrated
        HP 3326A 2-channel synthesizer, NIST-certified
        HP 33324L Programmable Attenuator, 40 Ghz, 90db, ( )
        HP 3335A Synthesizer Level Generator, NIST-calibrated
        HP 3458A Digital Multimeter, 8 1/2 Digits
        HP 3458A Multimeter   Cal-Rams Ver 9 software Rack17c
        HP 346C/K01 Broadband Noise Source - 1-50 GHz
        HP 3562A 100KHz Dynamic Signal Analyzer
        HP 3562A Dual-Channel, Dynamic Signal Analyzer 64 μHz to 100 kHz
        HP 3563A Control System Analyzer
        HP 3563A Control Systems Analyzer
        HP 35665A
        HP 35665A Dual FFT Signal Analyzer w/opts1C1/1C2/1D0/1D2/ANA
        HP 35670A DYNAMIC SIGNAL ANALYZER WITH OPTION: 1C2 UFC UFF ON SALE    
        HP 35689B S-Parameter Test Set, 150 MHz (Reduced 8/12)
        HP 3569A Frequency Analyzer
        HP 3577A NETWORK ANALYZER 5Hz to 200 MHz
        HP 3577A NETWORK ANALYZER W/ HP35677A S-PARAMETER TEST SET W/ MANUALS
        HP 3585A ; SPECTRUM ANYALYZER 20 HZ-40MHZ
        HP 3585A 20 Hz - 40 MHz Spectrum Analyzer
        HP 3585B Spectrum Analyzer Opt.001 Includes NIST Cal & Certs (2013 SALE )
        HP 3586C Selective Level Meter (Voltmeter), guaranteed
        HP 3588A 10Hz-150MHz Spectrum Analyzer, Opt 001
        HP 3589A 10 Hz to 150 MHz Spectrum Network Analyzer w/ Opts.1D5,1D6
        HP 3589A 10 Hz-150 MHz Spectrum Network Analyzer w/NIST Cal   (Fall Clearance )
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        HP 3730B DOWN CONVERTER, HP 3737B RF MODULE OPT 010
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