Kelvin bridge has the virtues of high sensitivity, precision reading and convenience to use.It is effective tools to measure the electrical resistivity and magnetoresistivity.
凯尔文直流双臂电桥具有灵敏度高、读数准确和使用方便的优点,是测量材料电阻率和磁阻的有效工具。
单词 | Kelvin bridge |
释义 |
Kelvin bridge
英语例句库
Kelvin bridge has the virtues of high sensitivity, precision reading and convenience to use.It is effective tools to measure the electrical resistivity and magnetoresistivity. 凯尔文直流双臂电桥具有灵敏度高、读数准确和使用方便的优点,是测量材料电阻率和磁阻的有效工具。
中文百科
凯尔文电桥![]() ![]() ![]() 凯尔文电桥(英语:Kelvin bridge),又称汤姆生电桥,用来测量电阻小于1欧姆的未知电阻。其原理与惠司通电桥类似,但多了额外的微小电阻,以降低测量误差,提升精确度。 凯尔文电桥的原理与惠司通电桥类似,但是多了额外的微小电阻,以降低测量误差,并且提升精确度。 此种电路平衡关系式如下: 在应用上, R'1与R'2的比值被调整成与R1和R2的比值相等。且在多数的设计中,R1 = R'1且R2 = R'2。因此,上式最后一项变成零,整个平衡式变为: 经整理后可得:
英语百科
Kelvin bridge 凯尔文电桥![]() ![]() ![]() A Kelvin bridge (also called a Kelvin double bridge and in some countries a Thomson bridge) is a measuring instrument used to measure unknown electrical resistors below 1 ohm. It is specifically designed to measure resistors that are constructed as four terminal resistors. |
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