變頻器主要由整流（交流變直流）、濾波、再次整流（直流變交流）、制動單元、驅動單元、檢測單元微處理單元等組成的。 1、西門子通用型變頻器的特點 西門子變頻器進入中國市場較晚，但是其增長速度快。西門子變頻器主要分為通用型、工程型和型三類。西門子通用型變頻器快速增長的原因主要有以下幾個方面: (1)、不斷推出新產品，滿足不同用戶的特定要求。西門子產品一般的更新周期不超過5年。其產品能夠滿足不同用戶的要求。 (2)、強大的通訊功能和的配套軟件，是西門子自動化產品的特點。這在我國造紙、化工、鋼鐵、機械制造等諸多產業從技術改造向自動化控制推進的飛速發展過程中，尤顯其競爭優勢。
National Instruments AT-AO-6/10 Acquisition DAQ Board - Never Used
Customs services and international tracking provided
National Instruments DAQCard-AI-16E-4 Data Acquisition Card 183262D-01
From Singapore
Messkarte Typ NATIONAL INSTRUMENTS NI-DAQ mx NI DAQCard-500
From Germany
National Instruments 183094H-01 PCI-1200 Multifunction Data Acquisition Card
NATIONAL INSTRUMENTS NI-DAQ DOCUMENTATION AND SOFTWARE COMBO KIT VERSION 7.4
National Instruments PC-DIO-24 180710C-01 ISA Data Acquisition Card 24-Bit
Newly ListedNATIONAL INSTRUMENTS NI DAQ CABLE, SH68-68-D1 183432-01 1M(meter) 183432A
NATIONAL INSTRUMENTS NI - DAQ SOFTWARE Ver. 7.0.1
Customs services and international tracking provided
Newly ListedNATIONAL INSTRUMENTS NI - DAQ SOFTWARE Ver. 7.0.1
Customs services and international tracking provided
Used National Instruments NI For PCI-6534 Data Card FREE SHIPPING
From Hong Kong
NI PCI-6259 Multifunction Data Acquisition (DAQ) 32 Ch
NATIONAL INSTRUMENTS NI-DAQ 7 DOCUMENTATION & SW COMBO KIT VER. 7.0
National Instruments NI PXI-6025E DAQ
From Hungary
National Instruments NI PCI-6534 Data Card USED
From Hong Kong
National Instruments USB DAQ module NI-9211 4-channel TC module
NATIONAL INSTRUMENTS NI Digital DAQ Crad Used PCI-DIO-32HS PCI-6533
From Hong Kong
National Instruments NI BNC-2110 Shielded Connector Block DAQ Device
Customs services and international tracking provided
National Instruments NI BNC-2110 DAQ / DAS sheilded cable connector 185124f-01
Data Acquisition system monitor digital converter block
Used NATIONAL INSTRUMENTS NI PCI-DIO-32HS PCI-6533 Digital DAQ Crad
From China
NI PXI-4495 , National Instruments 24-Bit, 204.8 kS/s, 16 Inputs,ADC DAC DSA DAQ
From Slovakia
*Tested* National Instruments NI PXI-6052E 16-bit Multifunction DAQ Module
Customs services and international tracking provided
National Instruments PCI-DIO-96 PCI-DI0-96 182920D-01 NI Digital I/O DAQ Board
From Israel
NI National Instruments TB-2705 Screw Terminal Block for PXI DAQ Modules
NATIONAL INSTRUMENTS NI-DAQ 7.3 Documentation Software Kit 501177E-02
Customs services and international tracking provided
NATIONAL INSTRUMENTS NI-DAQ SOFTWARE Ver. 7.0.1
Customs services and international tracking provided
National Instruments NI PCI-6534 Data Card Tested
From China
National Instruments NI PCI-6014 16-Bit Analog Input Multifunction DAQ
From China
NATIONAL PCI-DIO-32HS PCI-6533 INSTRUMENTS NI Digital DAQ Crad Used
From Hong Kong
NATIONAL INSTRUMENTS NI PCI-DIO-32HS Digital DAQ Crad FREE SHIP
From Hong Kong
ONE NATIONAL INSTRUMENTS NI PCI-6534 DATA CARD TESTED Mint Condition NICE!!!
From China
National Instruments NI PCI-6281 multifunction DAQ board
From China
NATIONAL INSTRUMENTS NI PCI-6534 DATA CARD
From Hong Kong
National Instruments SHC68-68-EP Shielded Cable 186838C-01 68 Pin 1m NI DAQ
NATIONAL INSTRUMENTS NI-DAQ 7 DOCUMENTATION & SW COMBO KIT VER. 7.3 (March 2005)
National Instruments SH68-68-D1 Shielded Cable, NI DAQ, 5 meters, p/n 183432A-05
National Instruments NI PCI-6251 Hi-Speed DAQ Free Ship
From Hong Kong
National Instruments NI PXI 6031E 100kS/s 64-Input 16-Bit Multifunction DAQ work
From China
ONE USED NATIONAL INSTRUMENTS NI PCI-6534 DATA CARD TESTED Mint Good Condition
From China
National Instruments NI PCI-7831R DAQ Multifunction
From China
National Instruments NI PCI-6534 Data Card USED Free Shipping
From China
*Tested* National Instruments NI PXI-6025E Multifunction DAQ 16AI 2AO 32DIO
Customs services and international tracking provided
*Tested* National Instruments NI PXI-6123 8-Ch Hi-Speed Simultaneous 16-Bit DAQ
Customs services and international tracking provided
USB DAQ MF126 DATA ACQUISITION 14AI 4AO 10DIO PWM COUNTER with Software & Driver
NEW- NATIONAL INSTRUMENTS NI-DAQ 7.4 Documentation Software Kit 778837F-030
Customs services and international tracking provided
National Instruments NI TB-2705 Screw Terminal Block for PXI DAQ Modules - used
Customs services and international tracking provided
National Instruments NI 6035E PCI-6035E 16-Bit Multifunction DAQ 16-input +Cable
NATIONAL INSTRUMENTS NI-DAQ USER MANUAL
National Instruments NI PCI-7831R DAQ Multifunction RIO Virtex-II 1M Gate FPGA
