描述

5X00121G01

雖然以現(xiàn)場總線為基礎(chǔ)的FCS發(fā)展很快，并將最終取代傳統(tǒng)的DCS，但FCS發(fā)展有很多工作要做，如統(tǒng)一標準，儀表智能化等。另外傳統(tǒng)控制系統(tǒng)的維護和改造還需要DCS，因此FCS完全取代傳統(tǒng)的DCS還需要一個較長的過程。
當前工控機仍以大系統(tǒng)、分散對象、連續(xù)生產(chǎn)過程(如：冶金、石化、電力)為主，采用分布式系統(tǒng)結(jié)構(gòu)的分散型控制系統(tǒng)仍在發(fā)展。由于開放結(jié)構(gòu)和集成技術(shù)的發(fā)展，促使大型分散型控制系統(tǒng)銷售增加。DCS1997年銷售為45億美元。在工控機中DCS是受計算機技術(shù)影響最大、反應(yīng)最快的一種。DCS主要發(fā)展趨勢為：
向綜合方向發(fā)展。由于標準化數(shù)據(jù)通信線路和通信網(wǎng)絡(luò)的發(fā)展，將各種單(多)回路調(diào)節(jié)器、PLC、工業(yè)PC、NC等工控設(shè)備構(gòu)成大系統(tǒng)，以滿足工廠自動化要求，并適應(yīng)開放化的大趨勢。
向智能化方向發(fā)展。由于數(shù)據(jù)庫系統(tǒng)、推理機能等的發(fā)展，尤其是知識庫系統(tǒng)(K
BS)和專家系統(tǒng)(ES)的應(yīng)用，如自學習控制、遠距離診斷和自尋優(yōu)等，人工智能會在DCS各級實現(xiàn)。和FF現(xiàn)場總線類似，以微處理器為基礎(chǔ)的智能設(shè)備，如智能I/O、智能PID控制、智能傳感器、變送器、執(zhí)行器、智能人機接口及可編程調(diào)節(jié)器相繼出現(xiàn)。

Tektronix SD-22 SD22 Sampling Head 12.5GHz

Tektronix SD-20 SD20 Loopthrough Sampling Head

Agilent HP 11612A Bias Network 45MHz – 26GHz

Agilent 16191A Side Electrode SMD Test Fixture COMPLETE

Agilent HP 11664D 26.5 – 40 GHz Scalar Coaxial Detector

Agilent / HP 4140B pA Meter / DC Voltage Source

Tektronix 3056 Real Time DC to 3 GHz Spectrum Analyzer

Agilent HP 85021B Directional Bridge10MHz to 26.5GHz

Agilent HP 85033D opt. 100 Calibration Kit, 3.5 mm

Fluke 5450A Resistance Calibrator with warranty

Racal-Dana 1992 Timer / Counter 1.3 GHz w/ warranty

Fluke / Philips PM6669 Timer / Counter 120MHz / 1.3 GHz

Rohde & Schwarz FSEM30 Spectrum Analyzer 26.5 GHz R&S

Tektronix TDS784D Digital Oscilloscope 1GHz 4GS/s 4CHs

HP Agilent 8447A Dual Channel Amplifier, Option 001

Hewlett Packard Agilent 8447A Amplifier, 100 kHz to 400

hewlett Packard Agilent 462A Pulse Amplifier 20 & 40db

ENI 601L RF Power Amplifier 0.8 to 1000 MHz, 1.2 W

Agilent / HP 11636B Power Divider, DC to 26.5 GHz

Gigatronics 8541B Power Meter with Warranty

Agilent / HP 85039A Type F Calibration Kit 75 Ohm

Agilent / HP E4420B Signal Generator 250 kHz – 2 GHz

Agilent 83732B Synthesized Signal Generator .01 – 20GHz

Keithley 775 Programmable Counter / Timer

Agilent HP 85050A 7mm Calibration Kit

Anristu 2000-768 Precision OSL Calibration Kit DC-8GHz

Anristu 2000-767 Precision OSL Calibration Kit DC-8GHz

Agilent / HP 70100A Power Meter Module with Warranty

Two Narda 378NM Type N Coaxial Fixed Termination 18GHz

Gigatronics 80701A Power Sensor 0.05-18GHz

HP 909A Coaxial Termination DC to 18 GHz Type N female

Agilent HP 16092A Spring Clip Fixture

HP 8470B Low-Barrier Schottky Diode Detector 10M-18GHz

Wiltron Anritsu 560-7S50 RF Detector w/ opt. 02

Agilent N1300A 002 CMU Cable 3m for Agilent B1500A

SRS SR510 Lock-In Amplifier with Warranty

Agilent / HP 214B Pulse Generator .3 – 100 V, .1-10 MHz

SRS SR570 Low-Noise Current Preamplifier w/ Warranty

Agilent HP 8447A Preamplifier 0.1 to 400 MHz

Agilent / HP 83522A RF Plug In 0.01-2.4 GHz w/warranty

Agilent HP 6226B DC Power Supply 0-50V, 0 – 1.5A

Systron Donner 6246A 26GHz Microwave Frequency Counter

Agilent / HP 83545A RF Plug In 5.9-12.4 GHz w/warranty

Agilent 83492A Optical clock recovery module w/Warranty

Lambda / TDK GEN40-19 DC Power Supply 40V 19A 760W

Fluke / Philips PM6665 Timer / Counter 160MHz / 1.3 GHz

Agilent / HP 3311A Function Generator 1 MHz w/ warranty

Agilent / HP 83480A Digital Communications Analyzer

Agilent N1254A opt 100 GNDU to Kelvin Adaptor

Agilent HP 8472A Crystal Detectors 10MHz – 18GHz

Agilent E4418B EPM Series Single-Channel Power Meter

Agilent / HP 86060C Lightwave Switch with Warranty

Agilent / HP 0950-3246 – 4396B 4294A Power Supply Board

Agilent 83485B 30GHz optical / 40 GHz electrical module

Agilent / HP 8757A Scalar Network Analyzer w/Warranty

Anritsu MS2711D Spectrum Analyzer 3 GHz with warranty

Tektronix TLS216 Logic Analyzer 16 CHz 2 GS/s w/probes

LeCroy LT344 WaveRunner 500 MHz Oscilloscope 4 Channels

Agilent E4407B Spectrum Analyzer 26.5GHz w/ Warranty

Agilent E6651A Mobile WiMAX Test Set w/ 503 & Warranty

Symmetricom / HP 58538A Lightning Arrestor DC-2.5 GHz

Agilent / HP 33340C Attenuator, DC – 26.5 GHz, 20 dB

Agilent / HP 8133A Pulse Generator 15 MHz – 3.35 GHz

Anritsu MP1777A 10 GHz Jitter Analyzer w/ Warranty

Agilent / HP E4970-66501 – 4396B, 4395A A1 CPU Board

Agilent / HP E4970-66550 – 4396B DC-DC Converter Board

Tektronix TDS7404B Oscilloscope 4GHz 4 Ch 20GSa/s

Agilent HP 70001A MMS System Mainframe (4 available)

Agilent HP 41901A SMD PI-Network test Fixure

Agilent 70842B 3 Gb/s Error Detector Module w/ warranty

Agilent HP 70904A RF Section 100 Hz – 2.9 GHz Warranty

Agilent HP 70810B Lightwave Section, 100 kHz to 22 GHz

Agilent HP 70912B 10 to 2000 mHz Downconverter Module

Agilent / HP 8594E Spectrum Analyzer w/ Warranty

Agilent / HP 54832D 1 GHz Infiniium Oscilloscope

Agilent 81651A Laser Source 1550 nnm with Warranty

Agilent 81662A DFB Source w/ option 361 & Warranty

Agilent 83493A Optical clock recovery module w/Warranty

Advantest R3263 Spectrum Analyzer with Warranty 3GHz

HP/Agilent 11590A RF & DC Bias Network 1G-12.4GHz /01

Anritsu MA2422A Thermal Sensor 10MHz-18GHz, 50 ohm

HP / Agilent 779D Directional Coupler 1.7-12.4GHz

HP / Agilent 8482H Power Sensor 30uW-3W, 50 ohm

NARDA 2358-6, Directional Coupler 5.4-11 GHZ, 6 DB

HP / Agilent 355C VHF Attenuator

Agilent / HP 71500A Microwave Transition Analyzer 40GHz

Racal 1260-12 Relay Actuator Module with Warranty

Agilent/HP E1750A VXI Broadband Distribution Amplifier

Agilent / HP 8752C RF Network Analyzer 3 GHz w/Warranty

Anritsu MP1764A w/ Opt 01 Error Detector w/ Warranty

Agilent / HP E5252A 10 X 12 Switch Matrix Card

HP 3708A Noise & Interference Test Set with Warranty

Agilent / HP 8349B Microwave Amplifier, 2 to 20 GHz

Agilent E4406A VSA Transmitter Tester, 7MHz – 4GHz BAE

Agilent 11980A Fiber-Optic Interferometer w/Opt. 005

Agilent / HP 6634A Front Panel Assembly 06634-60003

Narda 5292 Broadband High Directivity Coupler

Anritsu MP1763C w/ Opt 01, 03 Pulse Pattern Generator

Tektronix TDS460A Oscilloscope 400MHz 100MS/s 4 Chs

Agilent / HP 54118A Trigger 500 MHz – 18GHz

Agilent / HP 83540A RF Plug In 2 – 8.4 GHz

Agilent / HP 70902A IF Section 10 Hz to 300 kHz Module

Agilent 70310A Precision Frequency Reference Module

Agilent / HP 4396B RF Network / Spectrum Analyzer

Tektronix TDS520C Digitizing Oscilloscope 500MHz,1GS/s

Agilent / HP 1670D Benchtop Logic Analyzer w/ Deep Mem.

Agilent 4142B Modular DC Source / Monitor Mainframe