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PHOENIX QUINT PS-100-240AC/24DC/10
PHOENIX QUINT PS-100-240AC/24DC/10
PHOENIX QUINT PS-100-240AC/24DC/10
1、信號(hào)隔離器發(fā)展歷史
信號(hào)隔離器誕生緣于工業(yè)現(xiàn)場(chǎng)噪聲和高低頻脈沖信號(hào)干擾的濾除和對(duì)控制系統(tǒng)的隔離保護(hù)，以保證信號(hào)輸出的準(zhǔn)確、穩(wěn)定和可靠，后來信號(hào)變送和提高負(fù)載能力的設(shè)計(jì)也增加進(jìn)來。
初期，信號(hào)采集都是采用變壓器隔離方式，它的特點(diǎn)是：性能穩(wěn)定，壽命長(zhǎng)，精度較高，帶負(fù)載能力強(qiáng)，隔離強(qiáng)度高，但電路復(fù)雜，制作工藝要求更高。隨著電子技術(shù)的發(fā)展，近些年來逐漸出現(xiàn)了利用光耦合器（optical coupler）生產(chǎn)的光電式隔離器，它的特點(diǎn)是：性能穩(wěn)定，抗干擾能力強(qiáng)，而且線路簡(jiǎn)單，成本低廉，但相對(duì)于變壓器隔離方式壽命略短、精度略低。在一些現(xiàn)場(chǎng)干擾較大，工藝要求較高場(chǎng)合出現(xiàn)了變壓器與光電聯(lián)合方式的信號(hào)隔離器，它的隔離能力、抗無線射頻和電磁干擾能力更強(qiáng)。
從功能的角度來看，信號(hào)隔離器也不局限于原有的模擬量信號(hào)隔離、濾波的功能，隨著自動(dòng)化技術(shù)和傳感器技術(shù)的發(fā)展，根據(jù)不同原理設(shè)計(jì)的傳感產(chǎn)品越來越多，非標(biāo)準(zhǔn)的信號(hào)轉(zhuǎn)換成標(biāo)準(zhǔn)信號(hào)的需求也越來越多，所以，信號(hào)隔離變送器是其恰當(dāng)?shù)漠a(chǎn)品描述。
2、信號(hào)隔離變送器發(fā)展現(xiàn)狀
隨著產(chǎn)品技術(shù)和市場(chǎng)應(yīng)用越來越成熟，市場(chǎng)越來越大，隔離器生產(chǎn)廠家越來越多，特別是國產(chǎn)品牌日益增多，這些廠家不管是自己研發(fā)還是貼牌，都在市場(chǎng)中擁有一席之地，有的市場(chǎng)營銷做的風(fēng)生水起，但大多國內(nèi)企業(yè)還僅限于能夠生產(chǎn)制造信號(hào)隔離變送器，在生產(chǎn)工藝控制、生產(chǎn)流程、質(zhì)量控制等方面還有不足，對(duì)于產(chǎn)品使用的設(shè)計(jì)、外觀設(shè)計(jì)等沒有形成自己的特點(diǎn)和創(chuàng)新。
PHOENIX QUINT PS-100-240AC/24DC/10
*NEW* National Instruments PXI-2596
*NEW* National Instruments 9144
*NEW* National Instruments 9144
6013 NATIONAL INSTRUMENTS SCXI-1302 185163A-01
National Instruments 778837T-031
National Instruments 745749-01 PXI-1002
National Instruments 763061-01
National Instruments AT-GPIB/TNT
NATIONAL INSTRUMENTS 776515-02
National Instruments ASSY181830E-01
National Instruments 781042-10
*USA SELLER* National Instruments CRIO-FRC Robotics Control System
National Instruments VXI-MXI-2 P/N: 183345A
NATIONAL INSTRUMENTS SCXI-1315 186963A-01
National Instruments AT-GPIB/TNT ASSY182885E-01
National Instruments SCXI-1120
National Instruments SCXI-1302 185163A-01
[National Instrument] PXI-6527
National Instruments PCI-GPIB 188513B-01
VXI SYNCCLOCK32
National Instruments VXI-TB-196 183777A-01
National Instruments SCXI-1000
National Instruments SCXI-1000
National Instruments GPIB-1014 180155-55
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188513F-01L National instruments PCI-GPIB
National Instruments PCI-6259
Lot of Two National Instrument AT-MIO-IGE-2
NATIONAL INSTRUMENTS BOARD PCI-GPIB
NATIONAL INSTRUMENTS 183064B-01
NATIONAL INSTRUMENTS PXI-8420/8
NATIONAL INSTRUMENTS PXI-8335 MXI-3
NATIONAL INSTRUMENTS PXI-6508
National Instruments PXI-1042 PXI-8187 PXI-6602 PXI-6704 PXI-6025E
National Instruments MXI-3 PXI-8335
National Instruments FP-TB-1 184106C-01
National Instruments USB-485/2
National Instruments PCI-6503
NI National Instruments 184683E-02 PCI-232/485.4CH
NI NATIONAL INSTRUMENTS GPIB-232CV-A
National Instruments PXI-6123
National Instruments PCI 232
National Instruments SCXI-1315 186963A-01
National Instruments 763061-02
National Instruments PXI-1042
National Instruments AT-MIO-16XE-50
National Instruments SCXI-1304
National Instruments SCXI-1327
NATIONAL INSTRUMENT GPIB-PCIIA
National Instruments VXIpc-486
NATIONAL INSTRUMENTS GPIB-USB-HS
SERBIA 2014 Europa National Musical Instruments set MNH
National Instruments PXI-1006 745751-01
National Instruments ASSY181830E-01
NATIONAL INSTRUMENTS PCI-DIO-96
National Instruments 187660E-02 14E65FF USB-232/485
National Instruments PXI-8105
[National Instruments] PXI-1000B
National Instruments PXI-1031,PXI-8331 MXI-4,PXI-1407 PXI-7344
National Instruments Model 181830-01
NATIONAL INSTRUMENTS PCI-8432/4
SCXI-1124 Module and SCXI-1325
National Instruments AT-GPIB/TNT
National instruments PCI-8215
[National Instrument] FP-1001
National Instruments CFP-2120
National Instruments SCXI-1315 186963A-01
National Instruments SCXI-1315 186963A-01
Malta FDC First Day Cover Europa 2014 National Musical Instruments 9th May 2014
NATIONAL INSTRUMENTS PCI-6534 187142F-01
National Instruments PXI-2546
ALBANIA - Europa 2014 "National musical instruments" - Booklet
191 MONTENEGRO 2014 - Europa Cept - National Music Instruments - MNH Set
National instruments PCI-6534 & 186612B-02
National Instruments PCI-6034E 187576C-01
National Instruments PCI-6034E 187576B-01
National Instruments 763507B-0R5
NATIONAL INSTRUMENTS AT-GPIB/TNT
NI PXI-5421 187872F-01
National Instruments IMAQ-BNC-1 183882-02
National Instruments 181641-02
National Instrument 5102
NATIONAL INSTRUMENTS PXI-8335 MXI-3
NATIONAL INSTRUMENTS FP-TB-1 D327841
*NEW* National Instruments PXI-2596
*NEW* National Instruments 9144
*NEW* National Instruments 9144
6013 NATIONAL INSTRUMENTS SCXI-1302 185163A-01
National Instruments 778837T-031
National Instruments 745749-01 PXI-1002
National Instruments 763061-01
National Instruments AT-GPIB/TNT
NATIONAL INSTRUMENTS 776515-02
National Instruments ASSY181830E-01
National Instruments 781042-10
*USA SELLER* National Instruments CRIO-FRC Robotics Control System
National Instruments VXI-MXI-2 P/N: 183345A
NATIONAL INSTRUMENTS SCXI-1315 186963A-01
National Instruments AT-GPIB/TNT ASSY182885E-01
National Instruments SCXI-1120
National Instruments SCXI-1302 185163A-01
[National Instrument] PXI-6527
National Instruments PCI-GPIB 188513B-01
VXI SYNCCLOCK32
National Instruments VXI-TB-196 183777A-01
National Instruments SCXI-1000
National Instruments SCXI-1000
National Instruments GPIB-1014 180155-55
NATIONAL INSTRUMENT PXI-2565 PXI2565
188513F-01L National instruments PCI-GPIB
National Instruments PCI-6259
Lot of Two National Instrument AT-MIO-IGE-2
NATIONAL INSTRUMENTS BOARD PCI-GPIB
NATIONAL INSTRUMENTS 183064B-01
NATIONAL INSTRUMENTS PXI-8420/8
NATIONAL INSTRUMENTS PXI-8335 MXI-3
NATIONAL INSTRUMENTS PXI-6508
National Instruments PXI-1042 PXI-8187 PXI-6602 PXI-6704 PXI-6025E
National Instruments MXI-3 PXI-8335
National Instruments FP-TB-1 184106C-01
National Instruments USB-485/2
National Instruments PCI-6503
NI National Instruments 184683E-02 PCI-232/485.4CH
NI NATIONAL INSTRUMENTS GPIB-232CV-A
National Instruments PXI-6123
National Instruments PCI 232
National Instruments SCXI-1315 186963A-01
National Instruments 763061-02
National Instruments PXI-1042
National Instruments AT-MIO-16XE-50
National Instruments SCXI-1304
National Instruments SCXI-1327
NATIONAL INSTRUMENT GPIB-PCIIA
National Instruments VXIpc-486
NATIONAL INSTRUMENTS GPIB-USB-HS
SERBIA 2014 Europa National Musical Instruments set MNH
National Instruments PXI-1006 745751-01
National Instruments ASSY181830E-01
NATIONAL INSTRUMENTS PCI-DIO-96
National Instruments 187660E-02 14E65FF USB-232/485
National Instruments PXI-8105
[National Instruments] PXI-1000B
National Instruments PXI-1031,PXI-8331 MXI-4,PXI-1407 PXI-7344
National Instruments Model 181830-01
NATIONAL INSTRUMENTS PCI-8432/4
SCXI-1124 Module and SCXI-1325
National Instruments AT-GPIB/TNT
National instruments PCI-8215
[National Instrument] FP-1001
National Instruments CFP-2120
National Instruments SCXI-1315 186963A-01
National Instruments SCXI-1315 186963A-01
Malta FDC First Day Cover Europa 2014 National Musical Instruments 9th May 2014
NATIONAL INSTRUMENTS PCI-6534 187142F-01
National Instruments PXI-2546
ALBANIA - Europa 2014 "National musical instruments" - Booklet
191 MONTENEGRO 2014 - Europa Cept - National Music Instruments - MNH Set
National instruments PCI-6534 & 186612B-02
National Instruments PCI-6034E 187576C-01
National Instruments PCI-6034E 187576B-01
National Instruments 763507B-0R5
NATIONAL INSTRUMENTS AT-GPIB/TNT
NI PXI-5421 187872F-01
National Instruments IMAQ-BNC-1 183882-02
National Instruments 181641-02
National Instrument 5102
NATIONAL INSTRUMENTS PXI-8335 MXI-3
NATIONAL INSTRUMENTS FP-TB-1 D327841
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