IC693MDL654H 空载电压就是物理课里老师讲的电源端电压，用内阻高的数字万用表来测。空载电压不存在“虚电、实电”问题，有多少萛多少。
在这里之所以强调用高内阻表来测是因为表本身也是一个负载，数字表的内阻高达10MΩ，如用来测1.5Ⅴ电池仅能产生不足1μA的电流，对电压的影响完全可以忽略不计。
但测带载电压，也就是题主说的“实际电压”就不那么简单了，因为不同负载会导致不一样的测试结果。比如手里有两节5号电池，其中一节是新的另一个是放置几年的。在用数字表测时两节都有可能是1.5Ⅴ，但点亮小灯泡后新电池电压下降不到0.1Ⅴ，而旧电池则降到1Ⅴ以下。但把灯泡换成一颗红色LED时，由于功耗大幅降低，新电基本不变还是1.5V，旧电也能维持1V以上输出。
造成这种差异的原因是电池不同内阻导致的。因为不同电池的带载能力不一样，所以要带上不同负载来测。
比如测量5号电池可以让它带一个15Ω的电阻作负载（指针表的电池专用档内阻既为15Ω），此时电池输出近0.1A，接近电池的典型工作状态。而测60Ah汽车蓄电池就要用阻值更小的大功率电阻让电瓶在输出几个安培的情况下进行测试。若此时仍能维持不低于95%的电压，则可基本判定正常。
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WTC 8144-71 435 SERIES WELD CONTROL W/DEVICE NE
WTC 8143 415 SERIES WELD CONTROL
ROSS VALVE 8077A4900Z NEW
REXROTH VARIABLE VOLUME VANE PUMP SV PSV PSAF 15ERM 66
MILTON ROY FLOAT SWITCH 282-11-38 NEW
FAFNIR BEARING 9117K (LOT OF 2) NEW
TELEMECANIQUE SQAURE D LX1FJ110 LX1 FJ110 COIL NEW
THOMAS BETTS STA-KON TERMINAL RC10-8FL (10 BOXES OF 50)
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FESTO SOLENOID CPV10-GE-ASI-8E?8A-Z 187714 002260
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FLO-TORK A500 A500-184-AB-ET-?MS1-SBH-N ROTARY ACTUATOR
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SED DIAPHRAGM VALVE 289.15.77.45.18?.HS.10 44031287 NEW
SCHMERSAL AZM 161CC-24KA-024-?M16 AZM161CC24KA024?M16 NEW
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ENGEL GEAR BOX G 8 N G8N 15:1 12 MM SHAFT NEW
SKF LINEAR BEARING LBBR 30-2LS (LOT OF 6) NEW
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SIEMENS SIMATIC TERMINAL BLOCK 6ES7 193-1CL10-0XA0 NEW
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FESTO VALVE MANIFOLD CPV10-GE-ASI-8E?8A-Z M8 187714 NEW
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CSAT IMAGE SAVING CIRCUIT BOARD 530-P06 12A741.1
CSAT ADAPTER CONTROLLER ENGINE 530-P24 12A61(4.0)
CSAT CONTROL BOARD PRINT HEAD 533-D20 17A70(1.93)
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CSAT CONTROLLER ENGINE 600DPI 6X35 530-P22 12A60(3.2)给力大卖，低价处理.
CSAT IMAGE SAVING CIRCUIT BOARD 530-P05 12A741(1.3) 给力大卖，低价处理.
CSAT CONTROLLER MAIN CMC 6X35 530-P03 12A74(1.2) 给力大卖，低价处理.
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SKF BEARING 6004 6004-2RSH ( LOT OF 6 给力大卖，低价处理.
REXROTH LINEAR BEARING MNR R162221320 给力大卖，低价处理.
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