3BDH000022R1
3BDH000022R1
3BDH000022R1 影響PLC控制系統(tǒng)的干擾源于一般影響工業(yè)控制設(shè)備的干擾源一樣,大都產(chǎn)生在電流或電壓劇烈變化的部位,這些電荷劇烈移動(dòng)的部位就是噪聲源,即干擾源。
干擾類型通常按干擾產(chǎn)生的原因、噪聲的干擾模式和噪聲的波形性質(zhì)的不同劃分。其中:按噪聲產(chǎn)生的原因不同,分為放電噪聲、浪涌噪聲、高頻振蕩噪聲等;按噪聲的波形、性質(zhì)不同,分為持續(xù)噪聲、偶發(fā)噪聲等;按聲音干擾模式不同,分為共模干擾和差模干擾。共模干擾和差模干擾是一種比較常用的分類方法。共模干擾是信號(hào)對(duì)地面的電位差,主要由電網(wǎng)串入、地電位差及空間電磁輻射在信號(hào)線上感應(yīng)的共態(tài)(同方向)電壓送加所形成。共模電壓有時(shí)較大,特別是采用隔離性能差的電器供電室,變送器輸出信號(hào)的共模電壓普遍較高,有的可高達(dá)130V以上。共模電壓通過(guò)不對(duì)稱電路可轉(zhuǎn)換成差模電壓,直接影響測(cè)控信號(hào),造成元器件損壞(這就是一些系統(tǒng)I/O模件損壞率較高的原因),這種共模干擾可為直流、亦可為交流。差模干擾是指用于信號(hào)兩極間得干擾電壓,主要由空間電磁場(chǎng)在信號(hào)間耦合感應(yīng)及由不平衡電路轉(zhuǎn)換共模干擾所形成的電壓,這種讓直接疊加在信號(hào)上,直接影響測(cè)量與控制精度。
備貨,備貨,降降降,火火火,火火火……
備貨,備貨,降降降,火火火,火火火……
——————————————————————————————————————
公司名稱:廈門泰尼電氣有限公司
聯(lián)系人:小廖(銷售代表)
聯(lián)系電話:0592-6539066
傳真號(hào)碼:0592-6890859(麻煩備注01008收)
手機(jī):13400716209
QQ號(hào)碼:1490371370
郵箱:1490371370@qq.com
誠(chéng)信經(jīng)營(yíng),質(zhì)量為首,誠(chéng)信至上,泰尼電氣小廖竭誠(chéng)為您服務(wù)!??!
———————————————————————————————————————
Nanometrics 9010b Integrated Metrology System 7000-017099 8000-01
Nikon NSR-S307E Amplifier Rack Step and Repeat System KBB25040 Asahi Kogyosha
Gasonics Etcher Aura AA-200LL A99-008-04 AA 200LL A99 008 04 Complete
Nikon Optistation 3 No Copper
KLA Archer 10XT FEM Interface 300DFF1P 0020839-002 Brooks Robot 6-0002-0887-SP
Applied Materials 0040-49084 Quantum Leap 3 Process Wheel 300mm
Nikon Optistation 3 Copper Only
Asyst Brooks Interface 6-0002-0456-SP 6-0002-0645-SP 9700-9129-01 IsoPort works
CTI Cryo Compressor 8128903G004 AMAT Endura
Nikon NSR-307 Controller Rack 4S019-117 4S019-424
Ebara Plating System CADS HVM
Applied Materials Quantum Leap 3 Process Module Wheel
AMAT Quantum X vaccum Waffer Handler Assembly
Aerotech Optem Metronics VW2424LM53 Acu-Gage System 11D12400 EC-100 3Z91003
Edwards NRY1P6000 Pump iGX6/100L
Edwards iGX600M Pump
Matrix System One Stripper 106 206 As-Is
Delta Design 1973060901 Summit ATC Handler Rev. A
TEL Act Developer Assembly 842 200mm TKB2111 CPC-G223B01B-13 Spin Chuck
Nikon Chassis 45064-477AN Interferometer STG IF ALG IF LC IF Agilent VME TDK MSE
Blue M FRS-13CY Temperature Humidity Chamber As-Is
Kokusia Hot N2 Unit from Quixace ALD
Ecosys VSI-AAOY Vector Ultra SI Scrubber
Mitsubishi RV-E114NHC-SA06 Industrial Robot
AMAT Wafer Transfer Arm 0010-19041 300MM Dual Blade CR AMAT Centra 2525
Kawasaki TS220-D511S Robot Untested As-Is
SVG 90 S FTC Fluid Temp Controller As-Is
Nikon Microscope 300 Nikon 300
AE Advanced Energy RF Generator APEX A3H2C200BA120G001A 10 kW/13
SMC Chiller Thermo INR-498-011C AMAT Centra
Applied Materials 1080-90184 Quantum Leap 3 Indexer Motor
Brooks 3L Macro Irvine Optical Inspection Station Mainframe BL 200 I-150
Amray 2030C Defect Review Tool Sigma Series 2030 Scanning Electron Microscope
SVG Micrascan Environmental Control Unit
Kensington Lot Sorter 200mm
Signatone Lucas Labs CAT Base Station 250 ml CAT surplus
SMC Thermo Chiller INR-499-201 INR-499-201-X021
SMC INR-497-001 Thermo Chiller TEL Unity 2