描述
VE3008
变频器输出基波及谐波等测试均基于傅里叶变换，保证傅里叶变换精度的一个主要条件就是整周期截断，也就是说，参与傅里叶变换的数据应该是整数个信号周期对应的数据。目前市面上大部分测量仪器做不到这一点，其后果是测量数据波动大，测量精度无法保障。另外，由于变频器输出谐波频率较高，被测信号带宽较宽，根据采样定理，要求采样频率高于信号带宽的两倍。若信号带宽为50kHz，采样频率必须高于100kHz。假设基波频率为1Hz，这样，在整周期截断的要求下，至少分析1S（一个信号周期）的数据，而1S的数据量为100k点，即傅里叶变换的点数为100k点。一般测量仪器的处理器无法处理这么大量的数据，运算速度也跟不上，因此，实际测量中往往通过降低采样频率来减少傅里叶变换点数，而降低采样频率之后，为了不违背采样定理，只能在被测信号输入侧加抗混叠滤波器，这样一来，傅里叶变换可以正常进行，基波可以准确获取，但是，被测信号的高次谐波被抑制了，不能满足变频器输出谐波测量的需要。
产品承诺：
保 证 全新原装进口,
保 证 安全准时发货，
保 证售后服务质量，
优势价格，大量现货。
主营DCS系统配件
机器人系统配件
大型伺服系统配件
品牌：ABB ,AB ,GE,FOXBORO,本特利，英维思，伍德沃德，西屋，瑞恩，施耐德，西门子，摩托罗拉，安川。力士乐。ACSO，横河等进口品牌。 专业销售进口DCS PLC系统备件模块
Triconex Siemens Yaskawa ABB GE Ovation AB Foxboro Motorola Schneider XYCOM KUKA 专业销售进口DCS PLC系统备件模块 15天包退换 一年质保 大量现货 国内实力库存商家
GIGATRONICS 8542 Dual Channel Power Meter – 40 GHz
AGILENT HP 83000 VLSI E2784-66503 B13545 PDPS CAL BOARD
AGILENT HP 83000 VLSI E2784-66503 C-6315 PDPS CAL BOARD
AGILENT HP 83000 VLSI E7179A SDSP CPU / CDU SWI D-3803
AGILENT HP 83000 VLSI E2803-66501 A 3407 A-3424
*LOT* SENSARRAY RESISTANCE CALIBRATION STANDARD KIT
SENSARRAY 1840A-8-5030 PROCESS PROBE INSTRUMENTED WAFER
SENSARRAY 1840A-8-5004 PROCESS PROBE INSTRUMENTED WAFER
AGILENT / HP 54112D DIGITIZING OSCILLOSCOPE 100MHz 4 CH
MAURY MOUNTZ UTICA TORQUE WRENCH / DRIVER / BREAK-OVER
Full lot of 24 various assortted wrenches!
CENCO Cat No. 92003 MEGAVAC Vacuum Pump 1/3 HP Motor
HP / AGILENT 33311-60050 SWITCH
***LOT OF 7 SWITCHES***
SOLOMAT MPM500E THERMOCOUPLE, HYGROMETER, TEMP PRESSURE
x2 AGILENT HP E5385A High Density Samtec Probe Adaptor
HP 9000 SERIES 9144 16-TRACK CARTRIDGE TAPE DRIVE
AGILENT / HP 8657B Synthesized Signal Generator 2060MHz
TEKTRONIX HFS9003 STIMULUS MAINFRAME SYSTEM *PARTS*
AGILENT / HP 54602B OSCILLOSCOPE 150MHz + 1CM Rackmount
**Unit has been TESTED & comes with 14-Day WARRANTY!!!
AGILENT / HP 8657B Synthesized Signal Generator 2060MHz
GASTECH GT Series Portable Gas Monitor Tester Meter C02
ANRITSU Model 560-7N50B RF Detector 10 MHz to 20 GHz
TEKTRONIX TG501 SG502 SG503 TIME MARK SINE WAVE GEN OSC
ASCOR 3000-47 Dual VXI Switch Matrix Module # 90400800
Quinstar QNS Series 26.5 – 40 GHz NOISE SOURCE
R&S OPTION B20 MODULATION CODER UPGRADE BOARD
HP AGILENT 6024A DC POWER SUPPLY OPT 100, 0-50V, 0-10A
AGILENT / HP 6427B DC POWER SUPPLY, 0-20V / 0-15A
GENERAL INSTRUMENTATION RF Power Measurement Head 3000W
PMH 13/3000 Frequency: 13.56 MHz-5 kHz
GIGATRONICS 8541C POWER METER w/ CABLE + OPTION 013
IFI LEVELING PREAMPLIFIER LPA-3B, 500MHz / 1 GHz
IFI LEVELING PREAMPLIFIER LPA-3A, 500 MHz / 1 GHz
Lucas Labs Reference Assembly OVDS-7010 VDS CAT TOOL x2
Waters Torque Watch ( TorqueWatch ) Model 940-2
BIRD 4021 DIRECTIONAL POWER SENSOR / 0.3 – 1000 Watts
*Tested w/ 7 Day ROR Warranty*
TEKTRONIX 2465 Analog Benchtop Oscilloscope 300MHz 4CH
BNC 625 625AT FUNCTION GENERATOR DC – 21.5 MHz vs. HP
ARBITRARY WAVEFORM FUNCTION GENERATOR w/ 7-Day Warranty
GIGATRONICS 8541C POWER METER 100KHz – 4GHz + OPTION 01
Tested & Fully Operational with 14-Day Warranty!!!
FLUKE 343A DC VOLTAGE CALIBRATOR 7-Digit 4-Terminal Out
Delta Electronics CQS-4 C-QUAM Synthesizer / Generator
BOONTON 51075 DIODE POWER SENSOR 18GHz 50Ω *PAIR of 2*
AGILENT / HP 6033A PROGRAMMABLE SYSTEM DC POWER SUPPLY
BNC 625 625A FUNCTION GENERATOR DC – 21.5 MHz vs. HP
ARBITRARY FUNCTION WAVEFORM GENERATOR w/ 7 Day Warranty
MARK-10 SERIES MG MG10 DIGITAL FORCE GAUGE / 500lbs
SORENSEN A12-1624 Center-Mike Hole Gage + Boster Bar
ELLSTROM Gage Block Set 92 peice, Accuracy “I”
BIRD 4021 DIRECTIONAL POWER SENSOR / 0.3 – 1000 Watts
R&S OPTION B50 Fast CPU Upgrade for SMIQ Series SIG GEN
ADVANTEST R6144 / TR6142 DC VOLTAGE CURRENT / GENERATOR
AGILENT / HP 75000 SERIES B HP E1301A W/ MODULES
HP Agilent 438A Dual Channel Power Meter + OPT 002
AGILENT / HP 1662A 68 CHANNEL PORTABLE LOGIC ANALYZER
OLYMPUS ILV-2 OES XENON LIGHT SOURCE
APPLICOS MEASUREMENT & CONTROL ATX7002 / ATX-7002
HP 85033-660014 3.5mm FEMALE SHORT (8753E Calibration)
STARRETT WEBBER GRADE 2 GAGE BLOCKS 1-100MM # RS45MA1
专业销售进口DCS PLC系统备件模块
PLC模块，可编程控制器，CPU模块，IO模块，AI模块，通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗
15天包退换 一年质保 大量现货 国内实力库存商家
18150087953 点击拨打电话联系我们