描述

這正是一個(gè)遠(yuǎn)非平坦頻響的例子。該示波器的頻響既不是高斯頻響也不是最大平坦頻響，反而更像“最大起伏”頻響，而且尖峰現(xiàn)象很嚴(yán)重，這會(huì)導(dǎo)致波形嚴(yán)重失真，不論測(cè)量的是模擬信號(hào)還是數(shù)字信號(hào)。不幸的是，示波器的帶寬規(guī)范(即輸入信號(hào)衰減為3dB的頻率)中對(duì)在其他頻率上的信號(hào)衰減或放大沒有任何規(guī)定。在這臺(tái)示波器上，即便是在示波器帶寬的五分之一處，信號(hào)也有大約1dB(10%)的衰減。因此，在這種情況下再根據(jù)3X準(zhǔn)則選擇示波器就很不明智了。所以，在挑選示波器時(shí)，最好是選擇著名廠商的產(chǎn)品，而且要密切注意示波器頻響的相對(duì)平坦度。

我們這里有您急需的停產(chǎn)備件，

優(yōu)勢(shì)現(xiàn)貨，詢不到的，買不到的，請(qǐng)聯(lián)系我們！

絕 對(duì)優(yōu)勢(shì)，絕 對(duì)低價(jià)！絕 對(duì)正品，優(yōu)質(zhì)的產(chǎn)品，一流的服務(wù)，充足的庫(kù)存，

歡迎來(lái)電詢價(jià)，我們將會(huì)給您最優(yōu)惠的價(jià)格！

主營(yíng)：世界知名品牌的PLC、DCS系統(tǒng)備件模塊

①Allen-Bradley(美國(guó)AB)系列產(chǎn)品》

②Schneider(施耐德電氣)系列產(chǎn)品》

③General electric(通用電氣)系列產(chǎn)品》

④Westinghouse（美國(guó)西屋）系列產(chǎn)品》

⑤SIEMENS(西門子系列產(chǎn)品)》

⑥銷售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。

⑦estinghouse（西屋）：OVATION系統(tǒng)、WDPF系統(tǒng)、MAX1000系統(tǒng)備件。

⑧Invensys Foxboro（福克斯波羅）：I/A Series系統(tǒng)，F(xiàn)BM（現(xiàn)場(chǎng)輸入/輸出模塊）

順序控制、梯形邏輯控制、事故追憶處理、數(shù)模轉(zhuǎn)換、輸入/輸出信號(hào)處理、數(shù)

據(jù)通信及處理等。Invensys Triconex:冗余容錯(cuò)控制系統(tǒng)、基于三重模件冗余（TMR）

結(jié)構(gòu)的zui現(xiàn)代化的容錯(cuò)控制器。

⑨Siemens(西門子)：Siemens MOORE，Siemens Simatic C1，Siemens數(shù)控系統(tǒng)等。

⑩Bosch Rexroth（博世力士樂(lè)）：Indramat，I/O模塊,PLC控制器,驅(qū)動(dòng)模塊等。

◆Motorola（摩托羅拉）：MVME 162、MVME 167、MVME1772、MVME177等系列。

Indramat AC Servo Line Former NAM 1.3-15 #11229

SCI Circuit Board 080-2441 180-2441 Rev C / B #25089

General Electric Contactor, RL4RA031T, #11896

New Murray LP118DC Electrical Panel 100 Amp #3820

NEW in BOX DME Connector Kit MTC12G #26338

SCI Circuit Board 080-2463 180-2463 Rev F / H B #25094

Cincinnati Milacron 3 531 3448A PC Board #6731

Cutler Hammer Drum Switch 9441H276C #27840

SCI Circuit Board 080-2451 180-2451 Rev D / C #25095

Heater Band 12391, 1000 Watt #22419

Eaton Durant 7 Digit Counter 6-Y-1-RMF-SU #8332

Allen Bradley 6189-RDB15C Versa View 1500H #18710-11

Moog 164-007D-10-B1-?2 Digital Motor Controller #11226

NEW Norgren Connector 4314-52 #23327

Siemens Contactor, 3TD1017-1G, 115-575 Volt, #11897

Applied Heater Band A-56B141, 600 Watt #22420

NEW IR Aro Coil 2F793 #23370

NEW Harting Connector MTC12G #26761

Epson EA-X20027AZ LED Readout Display #13323

Allen Bradley Versaview Logic Module 6189-RPEH #18712

Dwyer Photohelic Pressure Gage 3001C, #6738

New Allen Bradley I/O Scanner Module 17754-S5 A #28825

Bray Chromalox Heater Band 0222-494686 1000W #22421

Nippon Denso 410100-0450 Teach Pendant TP3 #10406

Allen Bradley 700-N200A1 AC Relay, LOT OF 5, # 11817

Boston Matthews Heater Band 2083/052 500 Watt #22423

Temco Heater Band 341M2801, 1215 Watt #22424

Reliance 0-51865-1 Current Loop Driver #22464

Minster Press Speed Synchronizer Control 490-0216 #8299

Triad MG-24-OF-20 Light Curtain Control Box #6739

Barber Colman Maco 4000 41AC-25203-214-?1-00 #23236

Barber Colman Maco 4000 41AC-26203-21A-?5-A0 #23237

Heater Band 343571-370, 300 Watt #22426

Allen Bradley 1756-0B16D Output Module # 18752

SCI Circuit Board 080-2354 Rev E, 180-2354 Rev D #27849

NEW Reliance 0-51865-1 Current Loop Driver #22463

Barber Colman Maco 4000 41AM-25103-214-?1-00 #23238

Carrier / United Tech HT203617-2 Temp Setpoint #11165

ABB BC9-40-00 Contactor #12616

Amicon Drive TPY2-415-280-30?-4B, 25 AMP, #11220

New Allen Bradley Starter 505-BOD-BIE #28824

Amphenol Hood Connector #23338

Watlow Heater Band ME3A3AP3A 1250 Watt #22428

Applied Heater Band A-512C221-X, 1300 Watt #22427

Fanuc A03B-819-C152 Output Module #22455

Allen Bradley Cordset 889N-F3AFC-6F Series B #23371

New Sola Power Supply 28-1203-2, 120V, 360 Watt #28823

SCI Circuit Board 080-2463 180-2463 Rev C / AE #25096

SCI Circuit Board 080-2355 Rev E, 180-2355 Rev B #27860

Allen Bradley 1756-IB16D Input Module # 18744

Applied Heater Band A-35B141-X, 625 Watt #22429

Siemens Drive PROFIBUS TPY2-415-280-30?-4B #11216

Allen Bradley 2711-TC4 Operator Interface #26604

NEW Hubbell Connector Body HBL7464V, 15 Amp #23374

Watlow Heater Band 30786140 #22430

Jackson Harmonic Motion Index Tabel T-14-8CWS-C #22417

SCI Circuit Board 080-2382 Rev L 180-2382 Rev G #27846

Allen Bradley 1305-BA03A-HA1 Frequency Drive #23222

SCI Circuit Board 080-2458 180-2458 Rev B / B #25098

Argus 0310108256N Alphanumeric Display #11770 WHL

Allen Bradley 2711-TC4X Operator Interface #26607

Trivot Heater Band N-21 2545, 150 Watt #24868

Fanuc A03B-0801-C053 Analog Output Module #10416

SCI Circuit Board 080-2470 180-2470 Rev F / BE #25099

New Accu-Sort Systems Scanner Control 4800 #28813

Mitsubishi AD57 Programmable Controller #6752

SCI Circuit Board 080-2354 Rev D 180-2354 Rev C #27859

Watlow Kona Heater Band 81-16-118, 750 Watt #26552

NEW Parker Fluid Power Servo Card EW10-120/D #11359