【经验】用U1242系列手持数字万用表检测谐波




设备和机器的广泛使用,谐波失真在当今世界变得越来越普遍。由于这些设备在高谐波电压和(或)电流水平下可能发生故障或失灵,谐波失真已成为设备管理人员、自动化设备用户和工程师日益关注的问题。谐波的存在并不妨碍工厂或办公室的正常运作。然而,这取决于配电系统的承受能力和设备的敏感性。在该应用笔记中,你将会学习一些关于谐波的基本知识并且会了解如何对电力系统进行快速的谐波检测。
谐波是什么
谐波是电力系统中出现的电压和电流,其频率是基本供电频率的整数倍,谐波在欧洲国家被定义为50Hz,在北美国家被定义为60Hz。例如,如果基频为60hz,那么二阶谐波为120hz,三阶为180hz,四阶为240hz,以此类推
图1 含有三阶和五阶谐波的正弦波的合成波形
产生谐波的因素
谐波是由具有非线性负载的现代电子设备引起的。这些非线性负载会在突发短脉冲中形成电流从而产生谐波。短脉冲会导致电流波形失真,进而导致谐波电流回流到电力系统的其他部分。谐波在有大量个人电脑、激光打印机、传真机、复印机、医疗测试设备、荧光灯、不间断电源(UPS)和变速驱动器的地方尤其普遍。
谐波会降低电能质量和效率,特别是在商业建筑或工业设施中。一般情况下,大多数建筑物可以承受高达电力系统总容量15%的非线性负载,如果非线性负载超过15%,就会产生一些不明显的负面影响。
谐波引起的问题
下面是一些由谐波引发的常见问题,不同建筑物产生的和谐波有关的实际问题也会不尽相同,这取决于其安装的产生谐波装置的种类和数量。
中性导体过载
三相系统由三个独立的相导体和一个中性导体组成。如果所有的相导体都承载相同的电流,那么只要有一个平衡的负载,相电流就会互相抵消。这种平衡负载使减小中性导体的尺寸成为可能。不幸的是,计算机使用的开关电源具有很高的三次谐波电流。当谐波电流在中性导线上相互抵消时,三次谐波电流在中性导线上是会加成的。在装有大量个人电脑的建筑物中,中性导线所携带的电流比其设计容量要大得多,这就造成了潜在的火灾危险。
变压器过热,导致相关损失增加
对于输入谐波产生负载的变压器,绕组中的涡流损耗占据了变压器损耗的绝大部分。这种涡流损耗与产品谐波电流的平方及其对应频率成正比。满负载的变压器对非线性负载的总损耗是等效线性负载的两倍。这导致变压器过热,变压器内部绝缘材料老化,最终会导致变压器故障。
断路器不当跳电
所有包含电容和电感的电路都有一个或多个谐振频率。当任何谐振频率同非线性负载产生的谐波频率一致时,就会发生谐波共振。谐振频率下的电压和电流会发生高度失真。这种失真会在电力系统中造成不当跳电,最终导致生产损失。
谐波分析仪是对电能质量进行详细分析以确定电压和电流在各自频谱上的波形的最有效的仪器。谐波分析仪在没有明显谐波现象的情况下也很有用,因为你无法确定谐波是否会造成问题。
为了帮助技术人员或电工快速识别源中是否存在谐波,KEYSIGHT引入了一个名为谐波比率的U1242 Series DMM的新特性。谐波分析仪用于对可疑源进行详细的谐波分析。利用这些数据,谐波比率函数计算一个从0%到100%的值来表示非正弦和正弦波形的偏差,该值表示谐波的存在与否。一个没有谐波的纯正弦波形的谐波比率为0%。高谐波比率的测量结果表明,信号中存在较多的谐波。通常情况下,5%的谐波比率不用太过担心,而任何超过10%谐波比率的都会给你带来麻烦。
图2说明了谐波比是如何推导出来的。
图2 谐波比率的计算
表1给出了基于真有效值DMM和平均响应型DMM谐波读数精确比较得出的谐波比率
表1 真RMS,平均响应以及谐波比率的差别
结论
Keysight U1242系列手持数字万用表内置谐波比率功能,帮助技术人员和工程师快速验证交流信号中是否存在谐波。这些信息可用于预防或减少设备宕机和维修成本。
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鄗立恒 Lv8. 研究员 2019-04-30学习了。
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FENT Lv8. 研究员 2019-04-29这个技术不错
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好运常伴吾 Lv8. 研究员 2019-04-29学习
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沉浮 Lv7. 资深专家 2019-04-29不错
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行行摄摄 Lv7. 资深专家 2019-04-29学习一下
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系列,E4982A,DAQM905A,DAQM909A4,N9950B,N9950A,N8740A,D3000GENB,E36200A,E36103B,N6791A,E 系列,N2842A,AC6912L,B2980B 系列,AC6912H,N9951A,33520B,RP7973A,RP7961A,N2841A,N7007A,53131A,P9243A,P937XA,P937XB,E4981A,U2741A,N9323C-TG7,N9951B,34972A,E36102B,N6790A,EDU33210A 系列,E36320A,N8741A,AC6802B,RP7972A,4000 X 系列,U2000 系列,U9424A,P9240AWGA,P924XA,S254A,E3600 系列,DAQM903A,N9960A,53200 系列,E36311A,N8762A,6000X,E36105B,U7104N,N6781A,U9424C,U2000,U9424B,N2876A,U7104F,E3641A,U2060 X 系列,U7104E,EXR254A,U9428B SP8T,RP7983A,N3300 系列,N7550 系列,AC6803B,DAQM904A,N8900,U2751A,84904L,34970A,N9961A,E36104B,CXG,E36150 系列,N6792A,P 系列,E3640A,DSOXBODE,AC6800B,N2874A,EDU33211A,RP7942A,6002A,BN9963B,E3600,S054A,1000 X,U7106N,E36313A,DAQM900A,L2060 X,U9422B SPDT,DSOX,U7106F,U7106E,N8756A,DSOX2MSO,J7204B,N8732A,E36150A 系列,N8950A,U3851A,EXR058A,RP7941A,AC6801B,10070D,P9384B,D4000AUTB,N2752A,EDU33210A,RP7953A,BN9962B,DAQM902A,U2761A,34980A,E36300A,E36312A,N6782A,DAQM901A,U2020 X,E36106B,53220A,N8757A,AC6900 系列,N8733A,D3000PWRB,N8951A,N9952B,RP7952A,N9952A,U7108B,U7108A,P9242A,P9375B,U7108C,P9240GENC,N2751A,P9375A,U9428C,E4980A,U9428B,6004A,33500B 系列,U9428A,N7971A,ENA 系列,D4000AERB,53132A,EXG X,N6785A,B2980B,N6773A,N6761A,N8754A,N8742A,RP7963A,N9953B,RP7951A,EDU33210 系列,N7970A,EDU33212A,P9241A,P938XB,N2750A,N2871A,53230A,N8700,U3810 系列,U9424A SP4T,DSOXT3MSO,S804A,L2050 X,J7201C,J7201B,N6784A,N8755A,J7201A,N8731A,N2870A,8495D,N2797A,N9934B,N2894A,N5770A,8495B,34420A,N70412A,N7973A,E3647A,6000X 系列,10833F,10833G,10833A,10833B,4154A,D6000GENB,10833C,S104A,10833D,N6775A,EXR204A,N6763A,N8736A,N6751A,N8954A,N8930A,EL34143A,E36300 系列,DAQ973A,N7550,EDUX1052A,U8480 系列,N9923A,N2796A,N9935B,3000G X 系列,N9935A,N2893A,EDUX 系列,3052G,U2781A,N5771A,N7972A,EDUX1052G,E36100,PP001A,E3646A,DP0001A,6811C,4032A,EXR108A,E36100 系列,N6786A,N8737A,D4000BDLB,N6774A,N6762A,N8943A,10834A,E5063A,N8955A,8494G,N8931A,E3634A,N2783B,N2795A,BN9961B,N5772A,6813C,N7951A,D6000USBB,E3649A,6800C,6812C,U71010A,U71010C,U71010B,N6753A,AC6800B 系列,N8758A,N6741B,N8734A,N6971A,S 系列,N8952A,N6777A,N6765A,N8940A,P9370A,P9382B,N2891A,P9370B,N2782B,D3000AUTB,53181A,N9933B,N28005A,EL30000 系列,U2050 X,N5761A,N7950A,BN9960B,N7974A,N8700 系列,34465A,E3648A,4054A,N6764A,N8759A,N6752A,E9320,N8735A,N6970A,N8941A,EL34243A,N6776A,N2793A,DAQ970A,N2890A,N2781B,RP7982A,E4417A,8509XD 系列,N9914B,N9914A,82350C,N5750A,N7953A,U2300 系列,N7977A,N5762A,DAQM909A,E8486A,DSOX-4WAVEGEN2,E5810B,N9938B,N9926A,N6743B,N8934A,N9938A,N6731B,N8946A,N6973A,E36100B 系列,E36200A 系列,E3643A,N6755A,EDUX,N2780B,E4416A,N9915B,N7976A,N5763A,E4980AL,N5751A,E36300,N7952A,D9110PWRA,E9300,N9915A,N8923A,N6972A,EXR104A,N9927A,N6742B,N8935A,E3630A,4052A,E3642A,N6700 系列,N6766A,N6754A,N2791A,汽车,嵌入式系统,航空航天,国防
U1250系列手持式数字万用表数据表
KEYSIGHT - 数字万用表,HANDHELD DIGITAL MULTIMETERS,手持式数字万用表,DMMS,U1250,U1251B,U1252B,U1253B,U1250 SERIES
【测试测量仪器合辑】直流电源分析仪、台式直流电源、数字万用表、手持频谱仪
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Keysight(是德科技)测试仪器分销产品选型指南(英文)
BenchVue Control and Analysis Software RF Bench and Handheld Instruments Handheld Spectrum Analyzers FieldFox Handheld Analyzers Spectrum Analyzers, Signal Analyzer Audio Analyzer and Signal Generator Power Sensors and Power Meters RF and Microwave Test Accessories Vector Network Analyzers and ECal Modules Essential Bench Oscilloscopes, Applications, and Probes Digital Multimeters Function/Arbitrary Waveform Generators Data Acquisition/Switch Units USB Products and Connectivity Frequency Counters/Timers Power Supplies Bench Power Supplies System Power Supplies Precision Power Supplies System Power Supplies(continued) DC Power Analyzer, SMUs, and DC Electronic Loads AC Power Sources LCR Meters Handheld Instruments
KEYSIGHT - 直流系统电源,函数发生器,电容表,MICROWAVE TEST ACCESSORIES,HIGH-DENSITY GP SWITCH,MULTI-CHANNELS ATTENUATION CONTROL UNITS,31-CHANNEL THERMOCOUPLE INPUT MODULE,MICROWAVE MANUAL PROGRAMMABLE STEP ATTENUATORS,ΜW SWITCH DRIVER,POWER RAIL PROBE,罗氏交流电流探头,LAN POWER SENSORS,AC POWER SOURCES,5½数字万用表/30 W直流电源,USB VECTOR NETWORK ANALYZERS (VNA),DC POWER SOURCES,HANDHELD CAPACITANCE,MIXED SIGNAL OSCILLOSCOPES,INSULATION RESISTANCE TESTERS,HIGH RESISTANCE METER,FUNCTION GENERATORS,VECTOR NETWORK ANALYZERS,绝缘电阻测试仪,SPECTRUM ANALYZER,LCR METER,HANDHELD OSCILLOSCOPES,PRECISION POWER SUPPLIES,直流电源,SIGNAL ANALYZERS,7½位纳伏/微欧计,ARBITRARY WAVEFORM GENERATORS,HANDHELD SPECTRUM ANALYZERS,BENCH POWER SUPPLIES,REAL-TIME SPECTRUM ANALYZER,CAPACITANCE METER,TRUEFORM WAVEFORM GENERATORS,连续波微波计数器,ENA VECTOR NETWORK ANALYZER,USB MODULAR SIMULTANEOUS-SAMPLING MULTIFUNCTION DAQ DEVICES,直流电源分析仪,8½位高性能数字万用表,多功能数据采集开关/测量单元,ECONOMY SCOPES,ARBITRARY WAVEFORM GENERATORS,PRECISION LCR METER,USB和LAN电源传感器,实时频谱分析仪,BENCHVUE CONTROL SOFTWARE,USB MODULAR MULTIFUNCTION DAQ DEVICES,固定衰减器,DIGITAL MULTIMETERS (DMMS),ECAL MODULES,AUDIO ANALYZER,LCR METERS,DATA ACQUISITION,USB MODULAR INSTRUMENTS,AC CURRENT PROBE,ANALYSIS SOFTWARE,高性能机电开关,8½ DIGIT PERFORMANCE DMM,MATRIX SWITCHES,低轮廓模块化电源系统,CABLE ANALYZER,SIGNAL GENERATOR,UNIVERSAL FREQUENCY TIMERS,MULTIFUNCTION DATA ACQUISITION SWITCH,SYSTEM POWER SUPPLIES,DC ELECTRONIC LOADS,SWITCH UNITS,FUNCTION GENERATORS,DC ELECTRONIC LOADS,20 MHZ FUNCTION GENERATOR,TRUEVOLT DIGITAL MULTIMETERS,SWITCH UNITS,POWER SUPPLIES,NEW FACELESS USB INSTRUMENTS,ATTENUATION DRIVER,DIGITAL STORAGE OSCILLOSCOPES,MIXED SIGNAL (MSO) OSCILLOSCOPES,DC POWER ANALYZER,SYSTEM CONTROL,FREQUENCY TIMERS,BASIC AC POWER SOURCES,钳形电流探头,DATA ACQUISITION APPLICATION,SOURCE MEASURE UNIT,HSAS,HANDHELD INSTRUMENTS,SMUS,低噪声电源,AUDIO ANALYZER,BENCHVUEANALYSIS SOFTWARE,HIGH-PERFORMANCE ELECTRO-MECHANICAL SWITCHES,5½ DIGIT DUAL-DISPLAY DMM,直流台式电源,DC POWER ANALYZER,GPIB GATEWAY,MULTIFUNCTION DATA ACQUISITION MEASURE UNIT,VECTOR NETWORKANALYZER,20-CHANNEL SOLID-STATE MULTIPLEXER,LAN GATEWAY,GPIB CABLES,手持式频谱分析仪,多通道衰减控制单元,ROGOWSKI AC CURRENT PROBE,BASIC TRUEVOLT DMMS,LOW-PROFILE MPS,真红外热像仪,USB AND LAN POWER SENSORS,HIGH SENSITIVITY CURRENT PROBES,FIELDFOX HANDHELD ANALYZERS,直流电子负载,USB POWER SENSORS,DC SYSTEM POWER SUPPLIES,MULTIPLEXERS,RF FREQUENCY COUNTERS,POWER METERS,WAVEGEN FUNCTION GENERATOR,SPECTRUM ANALYZER,ANTENNA ANALYZER,高灵敏度电流探头,PROBE,WAVEGEN ARBITRARY GENERATOR,RF FREQUENCY TIMERS,RF ACCESSORIES KIT,赫萨斯,USB MODULAR ISOLATED DIGITAL I/O DEVICES,PERFORMANCE AC POWER SOURCES,UNIVERSAL FREQUENCY COUNTERS,HANDHELD SPECTRUM ANALYZERS (HSAS),LOW-PROFILE MODULAR POWER SYSTEMS,射频和通用频率计数器/定时器,POWER SUPPLIES,DC BENCH POWER SUPPLIES,DC POWER SUPPLIES,RF BENCH INSTRUMENTS,LOW-NOISE POWER SOURCES,OSCILLOSCOPE,手持式数字万用表,ΜW SWITCHES,FEMTO,CW MICROWAVE COUNTERS,OSCILLOSCOPES,CONTROL SOFTWARE,BASIC AND PERFORMANCE AC POWER SOURCES,USB INTERFACE,电源轨探头,MIXED SIGNAL SCOPES,POWER SENSORS,示波器,HANDHELD DIGITAL MULTIMETERS,手持示波器,DATA ACQUISITION UNITS,5½ DIGIT DIGITAL MULTIMETER,频谱仪,SIGNAL GENERATORS,4X8 SWITCH MATRIX,TRUEIR THERMAL IMAGERS,ELECTRONIC CALIBRATION MODULES,ECAL,数字万用表,GPIB INTERFACE,40-CHANNEL SINGLE-ENDED MULTIPLEXER,手持式钳形仪表,ELECTRONIC CALIBRATION MODULES (ECAL),探棒,FREQUENCY COUNTERS,RF SWITCHES,混合信号示波器,MULTIFUNCTION DATA ACQUISITION SWITCH /MEASURE UNIT,OSCILLOSCOPES,HANDHELD CLAMP METERS,矢量网络分析仪,5½ DIGIT MULTIMETER/30 W DC POWER SUPPLY,MICROWAVE ACCESSORIES KIT,FUNCTION GENERATOR,DIGITAL MULTIMETERS,FREQUENCY RESPONSE ANALYSIS (FRA),MULTIFUNCTION MODULE,16-CHANNEL MULTIPLEXER,菲尔德福克斯手持式分析仪,低噪声和系统放大器,TRUEVOLT数字万用表,FIXED ATTENUATORS,SPECTRUM ANALYZERS,PICOAMMETER,自动调整高功率系统电源,CLAMP CURRENT PROBE,FREQUENCY TIMERS,REAL-TIME SPECTRUM ANALYZER (RTSA),PERFORMANCE TRUEVOLT DMMS,CXA SIGNAL ANALYZER,AUTORANGING HIGH-POWER SYSTEM SUPPLIES,真形波形发生器,DIGITAL STORAGE (DSO) OSCILLOSCOPES,NETWORK ANALYZERS,5½ DIGIT MULTIMETER,HANDHELD SPECTRUM ANALYZERS,DIGITAL STORAGE SCOPES,USB GATEWAY,BENCHVUE SOFTWARE,POWER METERS,FREQUENCY COUNTERS,USB MODULAR DATA ACQUISITION,信号发生器,ELECTROMETER,RF AND UNIVERSAL FREQUENCY COUNTERS/TIMERS,VECTOR NETWORK ANALYZER,3-CHANNEL SOURCE MEASURE UNIT,LOW-NOISE AND SYSTEM AMPLIFIERS,电子校准模块,GP SWITCHES,源测量单元,LCR仪表,HIGH-DENSITY MATRIX SWITCH,功率表,HIGH PERFORMANCE PCIE GPIB INTERFACE CARD,LCR METERS,RF TEST ACCESSORIES,7½ DIGIT NANOVOLT/MICRO-OHM METER,数字存储示波器,RF MANUAL PROGRAMMABLE STEP ATTENUATORS,HANDHELD INSTRUMENTS,CXA信号分析仪,电源,基本和高性能交流电源,音频分析仪,U8480,B2911A,U1272A,N8926A,34460A,N7040A,U8000,N9340B,53140,N5742A,N5766A,34905A,N9918A,N6735B,N8480,N5743A,N5767A,N1914A,3024T,3012T,U1273A,34904A,N6746B,N6734B,U3800,U1282A,N8948A,34470A,N7042A,N1913A,N5744A,N5768A,34903A,N8924A,N9916A,N9928A,34939A,N6701C,N8949A,U1271A,N8925A,N8937A,N7041A,N1912A,N9000B,N5745A,N5769A,N2819A,3022T,3034T,N6700C,34902A,N9917A,34938A,N6736B,U1600,8491A,DSOX1102G,DSOX1102A,N9320B,P-SERIES,33509B,N7020A,N1911A,N9344C,N5746A,N3302A,N2818A,34901A,34937A,U1701B,82357B,U1273AX,U2802A,N5181B,N2142A,U1281A,B2902A,4024A,N5747A,N3303A,8490G,N2805A,3032T,N6702C,U1700,N6705C,N8928A,N9342C,33519B,B2901A,N3304A,N5748A,34947A,N2804A,N8929A,N5171B,N9343C,N2140A,X-SERIES,B2912A,N3305A,U8903B,N5749A,4022A,34934A,4034A,34946A,8480D,3054T,U2702A,N3306A,U1733C,U1210,U2300,N5700,34945A,3458A,TU1453A,U2701A,B2962A,1146B,N3307A,1147B,N7026A,33600A,33612A,B2961A,N9322C,N9310A,U1731C,2002A,53200,2014A,3104T,U1610A,U2723A,33611A,2004A,U1732C,J7205A,34942A,U3606B,53210A,J7205B,U2722A,N1810UL,33622A,3102T,34941A,N8760A,2012A,2024A,U2500,U1620A,33512B,33500B,33621A,N1810TL,3004A,N6700,N6705,N8761A,N2821A,33511B,N3300,4104A,2022A,N2820A,U2600,33510B,33522B,3014T,N2843A,E36100B,33521B,N9962A,87106D,AC6804B,E4982A,DAQM905A,34950A-34959A,N6750,N9950A,N8740A,E36103B,U2020,EDUX1002A,N9951A,33520B,N7007A,83050A,N2962A,53131A,P9243A,E4981A,U2741A,34972A,E36102B,J7211B,J7211A,J7211C,E36320A,N8741A,AC6802B,DAQM903A,U1270,N9960A,E36311A,N8762A,E36105B,N6781A,U2000,E3641A,EDUX1002G,N2863B,AC6803B,DAQM904A,N8900,U1280,84904L,U2751A,34970A,N9961A,B2900,E36104B,E3640A,AC6800B,N2862B,6002A,E3600,E-SERIES,E36313A,DAQM900A,U1250,U5850,N8756A,N8732A,N8950A,AC6801B,10070D,DAQM902A,U2761A,34980A,E36300A,E36312A,N6782A,DAQM901A,E36106B,53220A,N8757A,87222D,N8733A,N8951A,87222E,N9952A,87104D,P9242A,E4980A,6004A,53132A,N6785A,N6773A,U1452A,B2980A,N6761A,N8754A,N8742A,P9241A,N2871A,53230A,N8700,N4985A-S50,U1240,N6784A,E4981A-001,E4981A-002,N8755A,U1453A,N8731A,N2870A,8495D,N2797A,87405B,N2894A,N5770A,8495B,87405C,34420A,E3647A,10833F,34921A-25A,10833G,10833A,10833B,4154A,10833C,10833D,N6775A,U1450A,N8736A,N6763A,U1232A,N8954A,N6751A,N8930A,N7550,N9923A,N2796A,N9935A,N2893A,N5771A,E36100,E3646A,6811C,N4985A-S30,4032A,N8737A,N6786A,N6774A,N8943A,N6762A,E5063A,10834A,N8955A,U1451A,8494G,N8931A,E3634A,U1233A,3052T,N2783B,P9371A,N2795A,N5772A,6813C,E3649A,6800C,6812C,N6753A,N8758A,U1460A,N6741B,U1242C,N8734A,U1242B,N8952A,N6777A,N8940A,N6765A,P9370A,N2891A,N2782B,EPM SERIES,53181A,N5761A,34931A-33A,34465A,E3648A,4054A,N8759A,N6764A,U1231A,U1461A,N6752A,E9320,83020A,N8735A,N8941A,N6776A,N2793A,DAQ970A,N2890A,L2060,N2781B,U1240C,N9914A,82350C,N5750A,N5762A,U2063,E5810B,N8934A,N6743B,N9926A,P1912A,N8946A,N6731B,N9938A,U1252B,E3643A,E3631A,N6755A,14585A,N2792A,N2780B,U1241C,N5763A,E4980AL,N5751A,E36300,E9300,N8923A,N9915A,N8935A,N6742B,N9927A,E3630A,U1241B,4052A,U1253B,E3642A,N6766A,34908A,N6754A,N2791A,N9912A,N8738A,N9936A,U1190,U2040,N5752A,N5764A,34450A,DAQM907A,N8932A,N8944A,34907A,N8920A,E3645A,N6745B,E3633A,N6733B,L2050,N2790A,U1251B,N8739A,N9913A,N9925A,N5741A,DAQM908A,N5765A,34461A,U2053,N8945A,N6732B,N9937A,N8957A,N8921A,E3632A,E3620A,N6756A,E3644A,N6744B,AUTOMATED TEST,COMPONENTS,INSTALLATION,INTEGRATED CIRCUITS,INDUSTRIAL,DESIGN VERIFICATION,EMI FILTERS,ANTENNA TESTER,SMART PHONES,UTILITIES,CABLE TESTER,HVAC,SIGNAL CONDITIONING,DATA ACQUISITION APPLICATIONS,AUTOMATED TEST EQUIPMENT (ATE) APPLICATION,SMD INDUCTORS,ELECTRICAL,BATTERY-POWERED DEVICES,POWER RAIL NOISE MEASUREMENTS,TABLETS,MAINTENANCE,ELECTRONICS TROUBLESHOOTING
Keysight(是德科技)基础测量仪器选型指南
Spotlight Special Offers and Events Pathwave Benchvue Software Oscilloscopes Data Acquisition/Switch Units Digital Multimeters DC Power Supplies Source Measure Units Electronic Loads Waveform Generators Signal Generators Signal Analyzers Vector Network Analyzers FieldFox Handheld Analyzers
KEYSIGHT - PRECISION SOURCE MEASURE UNITS,红外示波器,ENA矢量网络分析仪,FIELDFOX HANDHELD RF AND MICROWAVE ANALYZERS,DC BENCH POWER SUPPLY,DATA ACQUISITION / SWITCH UNITS,矢量网络分析仪,LOW NOISE POWER SOURCES,4 X 8双线矩阵开关,INFINIIVISION OSCILLOSCOPES,DIGITAL MULTIMETERS,精密源测量单位,AUTORANGING BENCHTOP POWER SUPPLIES,PROFILER,MULTIFUNCTION MODULE,20通道执行器总成开关,DC POWER SUPPLIES,电子负载,高道密度精密源测量装置,MIXED-SIGNAL OSCILLOSCOPE,ENA VECTOR NETWORK ANALYZER,数据采集系统,数据采集/开关单元,电池仿真器,DATA ACQUISITION UNITS,TRUEVOLT DIGITAL MULTIMETERS,HIGH-CHANNEL DENSITY PRECISION SMU,SWITCH UNITS,菲尔德福克斯手持式分析仪,HIGH-CHANNEL DENSITY PRECISION SOURCE MEASURE UNIT,TRIPLE-OUTPUT DC POWER SUPPLIES,TRUEVOLT数字万用表,三路输出直流电源,SOURCE MEASURE UNITS,4 X 8 TWO WIRE MATRIX SWITCH,DATA ACQUISITION SYSTEM,VECTOR NETWORK ANALYZERS,16-CHANNEL HIGH-SPEED MULTIPLEXER,ELECTRONIC LOADS,FIELDFOX HANDHELD ANALYZER,DC POWER ANALYZER,BENCH DC ELECTRONIC LOADS,直流电源,多功能模块,4通道同步采样数字化仪,SMU,MODULAR POWER SYSTEM,真形波形发生器,RF SIGNAL ANALYZER,SMUS,低噪声电源,20-CHANNEL ACTUATOR,TRUEFORM WAVEFORM GENERATORS,SIGNAL ANALYZERS,SERIES DC BENCH POWER SUPPLY,20通道多路复用器,OSCILLOSCOPES,BATTERY EMULATOR,直流电源分析仪,高通道密度精密SMU,SIGNAL GENERATORS,直流台式电源,基本频谱分析仪,20-CHANNEL MULTIPLEXER,信号发生器,示波器,20-CHANNEL SOLID-STATE MULTIPLEXER,BASIC SPECTRUM ANALYZERS,40通道单端多路复用器,BSAS,SIGNAL GENERATOR BUNDLE,信号分析仪,FIELDFOX手持式射频和微波分析仪,FIELDFOX HANDHELD ANALYZERS,20通道固态多路复用器,数字万用表,模块化电源系统,DIGITAL MULTIMETER,4-CHANNEL SIMULTANEOUS SAMPLING DIGITIZER,精密源测量单元,剖析器,40-CHANNEL SINGLE-ENDED MULTIPLEXER,20-CHANNEL ACTUATOR GP SWITCH,FIELDFOX HANDHELD ANALYZERS,WAVEFORM GENERATORS,波形发生器,16通道高速复用器,FIELDFOX 手持式分析仪,台式直流电子负载,BSAS,自动调节台式电源,33521B,B2911B,PZ2120A,PZ2100,P9377B,34460A,DAQM905A,N9324C,1000X,3458A,N9918A,EL34143A,33600A SERIES,BV0003B,E36155A,BV9210B,DAQ973A,B2962B,N9935A,PZ2121A,P9243A,P93XXB,P937XA,P937XB,34972A,EL30000 SERIES,E5063A,E36154A,3000X,P9371B,P9371A,33600A,PZ2130A,B2961B,33612A,34470A,DAQM903A,B2960B SERIES,N9322C,N9960A,E36311A,6000X,E36731A,PZ2100 SERIES,N6701C,P9370A,P9382B,3000G X-SERIES,P9370B,PZ2131A,B2960B,33611A,33500B SERIES,PW9251A,DAQM904A,N6700 SERIES,34970A,N9323C,34465A,B2901BL,EXR-SERIES,E36150ADVU,N6700C,EL34243A,E36150 SERIES,DAQ970A,E36150,P9373B,BV9201B,E36300 SERIES,33622A,P9373A,P397XA,33509B,2000X,DAQM909A,E36313A,1000 X-SERIES,DAQM900A,E36232A,33512B,P9372A,P9384B,33500B,33621A,P9372B,N5181B,A-SERIES,N9321C,DAQM902A,N6700,E36200 SERIES,N755XA,B2902B,E36300,2000 X-SERIES,4000X,E36312A,DAQM901A,4000 X-SERIES,ENA,E36231A,N6702C,6000 X-SERIES,N9952A,B2901B,33511B,N5166B,N6705C,BV9211B,P9375B,P9242A,B2900B SERIES,PZ2110A,P9375A,33519B,DAQM907A,EL30000,E36234A,B2910BL,35520B,33510B,B2900B,B2912B,33522B,BV9200B,P9374A,N5171B,P9374B,P9241A,N9913A,P938XB,N9925A,X-SERIES,N1500A,DAQM908A,E36200,34461A,E36233A,ENA SERIES,INSTRUMENT CONTROL SOFTWARE APPLICATIONS,仪器控制软件应用
福禄克测试仪器工业产品目录
福禄克测试仪器目录展示了其丰富的产品线,包括绝缘电阻测试仪、红外热像仪、数字万用表、钳形表、过程校验仪、电能质量分析仪、接地系统测试仪等。目录还介绍了福禄克的发展历程,从1948年创立至今,福禄克不断推出创新产品,如世界上第一款真有效值数字电压表、第一台实用手持式数字万用表等。此外,目录还详细介绍了Fluke Connect™系列测试工具,包括其产品特性、技术参数和附件等。
FLUKE - 三相电能质量分析仪,软管,热偶插头,电能质量分析仪,压力调节器,掌上数字万用表,保险型测试探头,HARD POINT测试线组,液压测试软管,低压测试泵,电动压力校验仪,过程万用表,电压指示灯,手持式参考测温仪,校验仪,挂勾探针,绝缘电阻测试仪,便携式压力校验仪,高级汽车测试线套件,接触式测温仪,温度测试工具,真有效值远程显示数字万用表,精密型液压比较泵,真有效值数字钳形表,经济型数字万用表,文档化全功能过程校验仪,无线K型温度模块,电器安规测试仪,电流钳,双量程压力校验仪,工业表面温度探头,真有效值热成像万用表,工业万用表,网络型高速数据采集器,示波器校准器,清洁布,保险丝,接地系统测试仪,放大器,工业高级测试线套件,气压测试泵,振动点检仪,鳄鱼夹,活塞式压力计,优质变送器测试软管套件,全优系列红外热像仪,非接触电压钳表,三相功率计,激光测距仪,制冷剂泄漏检测仪,汽车万用表,挂钩探针,汽车测试线套件,绝缘万用表,电信测试线组,LED头盔灯,工业测试线组,汽车探针管套适配器组,刚性延伸式探针组,数字式绝缘电阻测试仪,六位半精密数字多用表,高精度多路测温仪,多功能多产品校验仪,多功能计量炉,高精度计量炉,“棒式”标准温度计,小电流钳形表,高精度数字多用表,经济型液压比较泵,超值数字万用表测试线组,臻享系列红外热像仪,激光水平仪,本安型真有效值工业万用表,相序指示仪,高压气体比较泵,钩钳式测试夹,油介质活塞式压力计,马达,管钳式温度探头,磁性万用表挂件,直流电流钳表,全自动压力校验仪,大师系列红外热像仪,非接触试电笔,红外热像仪,干体式温度计量炉,模块式压力控制器,超级多产品校验仪,数字钳形表,频闪仪,光缆光源,热敏风速计,液压测试泵,真有效值钳形表,交流测量标准器,多功能过程校验仪,全自动气体压力控制器,微安级漏电流钳表,超级大电流标准源,基本电子测试线组,高精度功率分析仪,激光对中仪,热工多产品校验仪,电缆探测仪,高精度多功能校验仪,压力模块,测试探头,真有效值多功能钳形表,旋入式鳄鱼夹,钳形表,隔热测试探头,三相电压质量故障诊断仪,电气测试线组,专家型三相电能质量分析仪,掌上型真有效值数字万用表,超低温计量炉,锐智系列红外热像仪,交/直流电流钳,压力校验仪,测试夹,气体压力比较测试泵,光缆计,过程校验仪,电流钳表,压力真空模块,手持式示波表,在线电能质量检测装置,蓄电池内阻分析仪,硅树脂测试线延长套件,汽车延伸式探针,示波表,测试探针,气体检漏热像仪,空气流量检测仪,多功能温度校验仪,气体活塞式压力计,探头灯,多功能电气安全校准器,无线交流电流钳模块,迷你热偶插头套件,数字万用表,高压探头,温湿度检测仪,回路校验仪,数据采集器,延长钳口鳄鱼夹,振动诊断仪,综合测试仪,测振仪,多产品校验仪,电能功率标准源,超级精密电阻测温仪,台式仪器,电子测试探头,红外点温仪,三相电能功率校验仪,电子高级测试线套件,基本型接地电阻测试仪,红外测温仪,粒子计数器,测试探头适配器套件,无线交流电压模块,热电偶检定炉,高精度数字压力表,绝缘测试仪,标准数字压力计,手操器,精密压力测量仪,测试线,无线直流电压模块,远程显示钳形表,交流电流模块,手持谐波钳形表,叶轮式风速计,压力泵,压力连接管件,测温仪,伸缩式探头测试线组,本安型红外测温仪,三相基础型电能质量记录仪,硅树脂隔热测试线,安装测试仪,便携式测温仪,便携式示波器,工业压力校验仪,八位半高精密标准数字多用表,单相电压事件记录仪,测试泵,转速计,在线过滤器,浸入式温度探头,气压比较泵,多功能环境测量仪,高精度毫安型过程电流钳表,温度校验仪,本质安全型校验仪,空气温度探头,接地电阻测试仪,接地环路电阻钳形表,917X,ST60+,9062,80K-6,233,TL80A,725EX,TP175,C50,3000 FC,TI200,362,8508A,365,1587,368,369,922,923,925,805,I3000S,87V/C,123B,I400S,1551A,A3004 FC,TP82,C781,TP81,TP80,930,1111,810,931,2640A,96270A27C,TP88,TL238,568 EX,TIS,1625-2,80K-40,C75,T6,TL910,1552A,117C1,381,TI300,419D,438-II,572-2,124B,I410,705,707,CXT,709,1587FC,18B+,TLK-220,ST80+,TLK-225,I6000S,154,1586A,830,568-2,125B,I200,9500B,I400E,715,C90,717,I30S,718,719,87V/C/IMS,59,5730A,6100B,TIX640,TLK289,I300S FLEX-24,700G,6003A,C5501,NORMA 5000,TI400,1550C,7250,I2000S,712C,721,TIX520,TL223,724,TL222,TL221,726,TL220,729,2271A,TL224,725S,AC 173,PV350,9190A,AC285,1595A,707EX,AC280,C345,5080A,AC283,C101,MT4 MAX+,971,TL40,I310S,975,17B+,115C,AC 175,VR1710,5502A,I1000S,50II,FPS 850,1560M,190II,TIX1000,88V/A,TI450SF6,C116,C115,714C,2811,TIX500,I300S FLEX-36,985,TIX620,116C,902 FC,TP920,I5S,353 2000,AC220,C800,ST201,NORMA 4000,802CN,1734,C12AS,1732,P3000,62 MAX,8808A,1738,1736,566-2,I800,V3000 FC,754EL,719PRO,1594A,2042,TIX560,3130,5790B,TP220,1621,TP1,370 FC,I200S,TP2,2700G,TP4,1508,302+,FOS 1300,175C,52120A,754PLUS,TIS60,TIS65,6105A,TLK281,771,P3100,TLK282,772,773,LVD1,1630,TL82,1750,TLK287,15B+,6270A,2638A,753EL,5320A,750P,TIX660,TIS75,1524,TL75,1523,TL71,303,787,1760,305,5725A,789,355 2000,1529,430-II,62 MAX+,177C,1660,80K-15,TIS40,P5510,TIS45,1535,552,MT4 MAX,P5513,P5514,312,P5515,TL175,424D,C280,317,319,1537,87V/C/E2,287C,914X,TI480,TIS50,A3001 FC,TIS55,561,562,563,820-2,700PEX,I1010,279 FC,7526A,6500-2,2645A,C23,L200,TL26A,TP38,179C,C25,9040,TI450,A3000 FC,TIS20,8845A,L206,TI32S,8846A,709H,1555,414D,9118A,700HPPK,TP40,28II EX,C33,C35,1623-2,289C,TIX580,342,101,586,345,106,107,马达,纺织,暖通空调,室外应用,机械加工,商用,造纸,印刷,HVAC,室内应用,工业应用,电气和电子测量应用,电气应用,轻工,商业应用,食品行业,驱动应用,医药,工业,住宅
Keysight(是德科技)数字万用表选型指南(简版)
Truevolt Series 6½- and 7½-Digit Bench Digital Multimeters 6½-Digit PXI Digital Multimeters Specialty Digital Multimeters Handheld DMMs
KEYSIGHT - 7½-DIGIT DMM,HANDHELD DMMS,4½-DIGIT HANDHELD MULTIMETERS,数字双显示DMM,DIGIT DMM AND DC POWER SUPPLY,SPECIALTY DIGITAL MULTIMETERS,DIGIT HANDHELD MULTIMETERS,ADAPTER,USB MODULAR DMM,DIGIT PXI DIGITAL MULTIMETERS,5½ DIGIT DUAL-DISPLAY DMM,8½-DIGIT DMM,适配器,7½-DIGIT BENCH DIGITAL MULTIMETERS,6½-DIGIT BENCH DIGITAL MULTIMETERS,4-DIGIT HANDHELD MULTIMETERS,DIGIT BENCH DIGITAL MULTIMETERS,PXI DIGITAL MULTIMETERDIGIT DMM,数字万用表和直流电源,SPECIALTY DMMS,PXI数字万用表,专用数字万用表,PXI DIGITAL MULTIMETERS,数字万用表,6½-DIGIT PXI DIGITAL MULTIMETERS,5½-DIGIT DMM,DIGITAL MULTIMETER,USB模块化数字万用表,TRUEVOLT DMMS,DMMS,手持数字万用表,DIGIT DUAL-DISPLAY DMM,数字PXI数字万用表,台式数字万用表,PXI DMM,8 1/2-DIGIT DIGITAL MULTIMETER,U1282A,U1241C,EDU34450A,U1281A,34460A,34470A,34420A,U2741A,34461A,34465A,U1117A,U3606B,U1177A,3458A,U1242C,U1252B,U1253B,M9181A,M9182A,M9183A
Keysight(是德科技)数字万用表选型指南(详细版)
Digital Multimeter Index Accessories Compatibility Chart Linking up your instruments to the PC BenchVue Software Handheld meter logger software GPIB and instrument
KEYSIGHT - TEMPERATURE MODULE,远程日志显示,万用表直流电源,钳形表,开尔文探测器集合,5.5-DIGIT DMM,组合测试引线套件,LOW THERMAL SHORTING PLUG,2U DUAL FLANGE KIT,BENCH DMMS,探头夹灯,磁性悬挂套件,坚固的便携包,直流耦合电流探头,数字万用表终端测试导线组,HANDHELD DMM,6½ DIGIT TRUEVOLT DMMS,5½位数字万用表|直流电源,RUGGED CARRYING CASE,基本TRUEVOLT数字万用表,THERMOCOUPLE KIT,5.5-DIGIT BENCH DIGITAL MULTIMETER OLED DUAL DISPLAY,HANDHELD CLAMP METERS,THERMISTOR KIT,热敏电阻温度探头,SMT抓取器,PXI-H数字万用表,工作台/系统数字万用表,软手提箱,5.5位台式数字万用表,电池充电器适配器,INPUT TERMINAL BLOCK,温度模块,DIGIT DUAL DISPLAY DIGITAL MULTIMETER,PXI DIGITAL MULTIMETER,手持钳形表,ACCESSORY POUCH,AC CURRENT CLAMP,手持式数字万用表,FINE-TIP TEST PROBES,TEMPERATURE PROBE ADAPTER,PXI-H DIGITAL MULTIMETER,LOW THERMAL INPUT CABLE,工业表面温度探头,THERMISTOR TEMPERATURE PROBE,毫伏/微欧姆表,BASIC TRUEVOLT DMM,DMM TERMINAL TEST LEAD SET,细尖测试探针,温度探头适配器,精密电子测试引线,低热短路插头,TEST LEAD KIT,KELVIN CLIP SET,ELECTRONIC TEST LEAD KIT,低热输入连接器,INTERFACE CARD,IR-TO-USB CABLE,HIGH VOLTAGE PROBE,电子测试引线套件,热电偶套件,CLAMP METER,鳄鱼夹,DIGIT TRUEVOLT DMMS,低热量外部数字万用表扫描套件,SOFT CARRYING CASE,DIGIT USB MODULAR MULTIMETER,数字万用表,KELVIN PROB SET,USB模块化数字万用表,高压探头,开尔文夹套,TEST PROBE LEADS,GPIB电缆,红外(IR)转蓝牙适配器,IR转USB电缆,HANDHELD DIGITAL MULTIMETERS,SMT GRABBERS,手持式钳形仪表,硬性手提箱,6½位TRUEVOLT数字万用表,NANOVOLT/ΜΩ METER,SURFACE MOUNT DEVICE PROBE,5.5位数字万用表,COMBO TEST LEAD KIT,RS-232 CABLE,CURRENT SHUNT,IMMERSION TEMPERATURE PROBE,中转箱,LOW-THERMAL EXTERNAL DMM SCANNING KIT,INFRARED (IR)-TO-BLUETOOTH ADAPTER,DUAL LOCK LINK KIT,8½ DIGIT MULTIMETER,USB/GPIB接口,HANDHELD CLAMP METERS,分流器,5½位USB模块化万用表,数字性能TRUEVOLT数字万用表,SYSTEM DMM,5½位双显示数字万用表,DELUXE TEST LEAD SET,豪华测试引线套件,PXI数字万用表,BENCH/SYSTEM DMM,附件袋,5½ DIGIT USB MODULAR MULTIMETER,RACKMOUNT KIT,表面贴装器件探头,低热量输入电缆,REMOTE LOGGING DISPLAY,TRANSIT CASE,HANDHELD CLAMP METER,HANDHELD MULTIMETERS,MAGNETIC HANGING KIT,台式数字万用表,PXI DMM,万用表,PROBE CLIP LIGHT,BATTERY CHARGER ADAPTER,7½数字万用表,远程测试探针,RS-232电缆,NANOVOLT/MICRO-OHM METER,接口卡,5½ DIGIT DIGITAL MULTIMETER | DC POWER SUPPLY,5.5-DIGIT BENCH DIGITAL MULTIMETER,MULTIMETER,REMOTE TEST PROBE,DC COUPLED CURRENT PROBE,HARD CARRYING CASE,2U双法兰套件,8½数字万用表,GPIB CABLE,纳伏/微欧表,机架安装套件,双锁连杆套件,ALLIGATOR CLIPS,测试引线套件,手持万用表,MULTIMETER DC POWER SUPPLY,PXI 6½数字万用表,浸入式温度探头,交流电流钳,DIGITAL MULTIMETER,AIR TEMPERATURE PROBE,INDUSTRIAL SURFACE TEMPERATURE PROBE,MODULAR DMM,测试探针引线,PRECISION ELECTRONIC TEST LEADS,USB MODULAR DMM,7½ DIGIT MULTIMETER,热敏电阻套件,TRUEVOLT数字万用表,BENCH DMM,DIGIT PERFORMANCE TRUEVOLT DMMS,PXI 6½ DIGIT MULTIMETERS,BENCH DIGITAL MULTIMETER,LOW THERMAL INPUT CONNECTOR,USB/GPIB INTERFACE,空气温度探头,TRUEVOLT DMM,输入端子板,5½ DIGIT DUAL DISPLAY DIGITAL MULTIMETER,U1191A,U1272A,34460A,34133A,34420A,34161A,U1210,10833F,10833G,34307A,10833A,10833B,10833C,10833D,U1232A,U1583B,3458A,U1163A,3446MEMU,U1175A,U1595A,3446SECU,U1180A,3446DIGU,U1192A,U8202A,34398A,U2741A,34172B,U1280 SERIES,34104A,U1176A,U1273A,U1164A,U1233A,34171B,3446ACCU,U1282A,U1173B,U1161A,U1173A,34470A,34131A,U1270,U1240B SERIES,U1240C SERIES,U1117A,E3600A-100,34103A,U1242C,U1185A,U1242B,U1169A,U1190 SERIES,U1271A,U1162A,3446LANU,U1230 SERIES,3446GPBU,U1280,11059A,34194A,34465A,34102A,34138A,U3606B,U1231A,U1174A,U1594A,U1186A,U1270 SERIES,U1240C,U1183A,U1240B,U5404A,U1171A,3445MEMU,82350A,11062A,U1250,34137A,U1252B,U1115A,U1212A,U1179A,U1273AX,Y1133A,82357B,U1172A,U1241C,E2308A,U1184A,U1281A,U1580A,34330A,34136A,U1241B,U1253B,M9181A,U1213A,U1168B,34191A,U1181A,U1193A,U1190,U8201A,34450A,11060A,U1230,U1210 SERIES,U1177A,M9182A,34190A,U1194A,U1251B,U1170A,U1182A,34134A,U1250 SERIES,34162A,34461A,3445GPBU,34308A,U1586B,M9183A,U1211A,U1178A
Keysight(是德科技) U1241B/U1242B 手持式数字万用表用户及维修指南(U1241-90069)
本指南详细介绍了Keysight U1241B和U1242B手持式数字万用表的使用、维修和校准。内容包括基本操作、功能设置、数据记录、性能测试、校准过程以及安全注意事项。指南涵盖了测量电压、电流、电阻、电容、温度、频率等参数的方法,并提供了故障排除和维护指南。
KEYSIGHT - 手持式仪表,手持式数字万用表,U1240,U1241B,U1242B,工业电子,消费电子,汽车电子,通信设备
【产品】10000计数显示和4位分辨率的手持式数字万用表U1242B,直流电压精度达到0.09%
U1242B是Keysight公司新推出的一款10000计数显示和4位分辨率的手持式数字万用表,基本直流电压精度达到0.09%。
U1280系列手持式数字万用表数据表
KEYSIGHT - HANDHELD DMMS,HANDHELD DIGITAL MULTIMETERS,手持式数字万用表,手持数字万用表,U1282A,U5404A,U1281A,U1280,U1280 SERIES,U1200,U1117A,U1200 SERIES,U1583B,U1177A,U1594A,U1595A,U1115A
Agilent U1241A/U1242A 手持式数字万用表 快速入门指南
本指南介绍了Agilent U1241A/U1242A手持式数字万用表的基本操作和功能。包括测量电压、二极管、电阻、电容、微安/毫安、安培、温度等,并具备过载保护功能。指南还详细介绍了仪表的键盘、旋钮开关、输入端子等部件的功能,以及如何进行操作和设置。此外,还提供了安全信息和注意事项。
KEYSIGHT - 手持式数字万用表,U1242A,U1241A
【产品】4.5位OLED显示屏、50000计数手持式数字万用表U1253B
U1253B是Keysight公司新推出的一款具有4.5位分辨率OLED显示器,2000:1对比度的手持式数字万用表,仪器可以采用双屏显示,分辨率高达50000计数,高达0.025%的基本DCV精度。
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