施耐德产品说明140DRA84000 Quantum

140DRA84000 Quantum

假设在电刷未通电的状态下，线圈（转子）沿逆时针方向旋转。作为现实案例，有这种情况：当正在旋转的电机的电源被切断后，转子由于惯性而继续转动。

在①的状态下，线圈A位于磁体N和S的中间。由于磁体产生的磁场方向是从N到S，逆时针旋转使线圈A接近磁体N，因此，向旋转轴方向的磁通量变化在（+）处大（粉红色箭头）。结果，线圈A产生电动势，该电动势使电流（紫色箭头）从旋转轴向外侧流动。

由于线圈B远离磁体N，线圈C靠近磁体S，因此磁通量的变化变为（-）（粉红色箭头），并且磁通量的变化值由于位置靠近磁体而小于大值。结果，线圈B和线圈C产生电动势，该电动势使电流（紫色箭头）从外侧流向旋转轴。

当此时的线圈A、B、C的电动势合并时，相对于右电刷在左电刷中产生（+）电压。

当变为②的状态时，线圈B位于磁体N和S中间，并且由于其接近S，所以磁通量的变化在（-）处变为大。结果，线圈B产生电动势，该电动势使电流从外侧流向旋转轴。

由于线圈A靠近磁体N，线圈C远离磁体S，所以磁通量的变化为（+），并且磁通量的变化值由于位置靠近磁体而小于大值。结果，线圈B和线圈C产生电动势，该电动势使电流从旋转轴向外侧流动。

当此时的线圈A、B、C的电动势合并时，相对于电机右电刷在电机左电刷产生正电压。

综上所述，当线圈（转子）逆时针旋转时，相对于电机右电刷，总是在电机左电刷上产生（+）电压。如果线圈顺时针旋转，则会因反向动作而在电机右电刷上产生（+）电压。产生的电压被换向器整流成直流电压，并且发电电压会随着转速的增加而提高。不言而喻，发电机就是基于这一原理制造的。

TEKTRONIX TDS 520 2 CHANNEL DIGITIZING 500MHz 500MS/s 

BMI 8800 POWERSCOPE BASIC MEASURING INSTRUMENTS W/WIRES

HP 70311A CLOCK SOURCE RANGE 16.1MHz - 3.3 GHz OPT 8ZE

KIKUSUI REGULATED DC POWER SUPPLY PAD 500-0.6A

KIKUSUI PLZ-153W PLZ153W ELECTRONIC LOAD PROGRAMMABLE 

EQUIPE TECHNOLOGIES PRE-1373

TEKTRONIX 1761 WAVEFORM VECTOR MONITOR W/TEKTRONIX 764

TEKTRONIX 1761 WAVEFORM VECTOR MONITOR W/TEKTRONIX 1721

TEKTRONIX 1745A WAVEFORM VECTOR MONITOR TEKTRONIX 1721A

TEKTRONIX 1741A WAVEFORM VECTOR MONITOR TEKTRONIX 760A

WANDEL & GOLTERMANN PCM CHANNEL MEASUREMENT SET PCM-4

WITH OPTION ,UNIT NEED REPAIR.

PANASONIC AUDIO ANALYZER VP-7723A WITH OPT 02 MODE

JOUAN B 4I BENCHTOP CENTRIFUGE UNIT WITH ROTOR S40.

Nireco Controller AE900E Liteguide AE900L cover break

MITSUBISHI A1S61PN W/ A2SHCPU-S1 WITH LINK MODULES

SIEMENS KSP-M54/COM292 MACHINE CONTROLLLER UNIT

BLACKSTONE ULTRASONICS MULTISONIK POWER GENERATOR UNIT

WILD HEEBRUGG 415905 SURGICAL MICROSCOPE PARTS. 

WILD HEEBRUGG SURGICAL MICROSCOPE PARTS . 

SOKKISHA TM10E MICROMETER THEODOLITE SURVEY EQUIPMENT

Shimadzu Mini UVmini-1240 UV/VIS Spectrophotometer

KOLLMORGEN BDS5A-220-41010/405C2-030 SERVO DRIVER 

TEKTRONIX 2432A 250MS/s 2-CHAN OSCILLOSCOPE GPIB OPT22

ATL C4-2 40R CURVED ARRAY TEST FIXTURE TEE STEE ASSLY

REGUS RADIO SURVEY EQUIPMENT ERICSSON

TYLAN MICRO CVD CONTROL BD 118730-008

HEWLETT PACKARD HP 6623A TRIPLE OUTPUT POWER SUPPLY

HP 70004A DISPLAY FRAME AND HP70311A CLOCK SOURCE

THURLBY THANDAR TSP3222 PROGRAMMABLE CONTROLLER DC GPIB

AGILENT HP 6571A DC POWER SUPPLY 0-8V/0-220A.

PROPAQ ENCORE 204 EL PROTOCAL TR4ANSPORT MONITOR 

MICROXAM SURFACE MAPPING MICROSCOPE 5 AXIS AUTO TURRET.

NIKON LABOPHOT INSPECTION MICROSCOPE W CAMERA OPTION 

RADIONICS RFG-3D RF LESION GENERATOR SYSTEM 110/230VAC

VARIAN TURBO-V200A VACCUM PUMP MODEL 969-9024

OMRON CS1H-CPU66H PROGRAMMABLE CONTROLLER WITH MODULES 

HP 6033A SYSTEM POWER SUPPLY 0-20V/0-30A

HAMAMATSU UV Spot Lightsource LC5 LightningCure L8222-2

0.4X-2.5X KAPS BINOCULAR STEREOZOOM MICROSCOPE W/EYES.

Omron R88D-UA20HA AC Servo driver 200V 11.0A 750W

OMRON CS1G-CPU42H PLC CPU W/ MC421-V1, SRM21-V1, PA204S

OMRON CS1G-CPU42H PLC CPU W/ MC421, SRM21-V1, PA204S

ET EURO TEST EHV10/SL HIGH VOLTAGE TESTER

EFFENDORF MINISPIN 5453 CENTRIFUGES 

KUNOH BINOCULAR STEREOZOOM MICROSCOPE WITH CAMERA

TEKTRONIX 1745A WAVEFORM VECTOR MONITOR TEKTRONIX 1761

HP Agilent 8903A 20hz-100khz Audio Analyzer w/ Opt. 001

LEICA 020-650-070 MICROSCOPE & SYSTEME GMBH WETZLAR.

WELLHOFER DOSIMETRIE MD 240 MULTI CHANNEL DOSIMETER

TTC FIREBERD 6000A COMMUNICATIONS ANALYZER OPT 6005

STRYKER ENDOSCOPY 784 3 CHIP MEDICAL VIDEO CAMERA 

LASAIR PARTICLE MEASURING SYSTEMS INC. MODEL 210

OMRON C200HX CPU85-Z PROGRAMMABLE CONTROLLER W/MODULES 

NIRECO TENTION CONTROLLER TC 640 TC640

FUJI SHARP VM1153 BOARD CARD GOOD CONDITION 

JOUAN B 4I BENCHTOP CENTRIFUGE UNIT WITHOUT ROTOR.

Agilent philips V26CT M1204A Anasthesia Monitor M1276A

BALDOR DIGITAL SOFT START MOTOR CONTROL MD-009-CB 230VA

PROPAQ 202 EL PATIENT VITAL MONITOR WITH MODEM OPT 223

NIKON SMZ-10 DUAL STEREO/BINOCULAR MICROSCOPE HEAD 

HP 8405A VECTOR VOLTMETER WITH PROBE

AGILENT HP 6621A SYSTEM DC POWER SUPPLY 

LECROY 9310M DUAL 300MHz OSCILLOSCOPE

GOULD DIGITAL RECORDING OSCILLOSCOPE DRO 1624 W/ PRINTE

ZYGO INTERFEROMETER MICROSCOPE FOR PARTS

PANASONIC VP-7706A AUDIO ANALYZER 

FLUKE PHILIPS 8522A DIGITAL MULTIMETER 

GALIL DMC-1580 MOTION CONTROLLER. 

Keithley 7002 10-Slot Switch Mainframe with 3 cards 

ADRET 104A DC VOLTAGE STANDARD SOURCE

MICRO LASER PARTICLE SPECTROMETER MICRO LPS 16-(3)

ACS POWER CONVERSION EQUIPMENT DRIVE SB-211AT2-2 230VAC

ACS POWER CONVERSION EQUIPMENT DRIVE SB-212AT2-2 230VAC

WILD LEITZ DIAPLAN GMBH MICROSCOPE STAND WITH LIGHT 

PARKER COMPUMOTOR AT6250-240V 25W 2 AXIS CONTROLLER

ESHED ROBOTIC SCORBOT ER9 ROBOT CONTROLLER 

ESHED ROBOTIC SCORBOT ER9 ROBOT ASRS CONTROLLER 

ESHED ROBOTIC SCORBOT ER9 ROBOT CIM CONTROLLER 

ESHED ROBOTIC SCORBOT ER V CIM CONTROLLER W/TEACH PEND

NIRECO TENTION CONTROLLER UNIT TC 640 TC640 SUPPLY230V

SCHLUMBERGER SOLARTRON 1286 ELECTROCHEMICAL INTERFACE

Olympus Endoscope OES Xenon Light Source CLV-S20 230VAC

Smith & Nephew DYNONICS Image Xenon XL Light Source

MELLES GRIOT PIEZOELECTRIC CONTROLLER WITH FEEDBACK

PROPAQ ENCORE 202 EL PATIENT VITAL MONITOR WITH MODEM 

Yokogawa DL1520 Digital Oscilliscope 150MHz,200MSa/s,2C