| 释义 |
voltmeter|ˈvɒltmiːtə(r), ˈvəʊlt-|
[f. volt n.2 + meter.]
An instrument for measuring the pressure of electricity in volts.
1882Eng. Mech. 10 Mar. 4/3, I have two instruments devised by Prof. Perry and myself, an Am-meter, and a Volt-meter, the one for measuring a strong current, and the other a large electromotive force. 1884C. G. W. Lock Workshop Rec. Ser. iii. 132/1 This can be verified by connecting one terminal of a voltmeter to the negative brush. 1898Engin. Mag. XVI. 139/2 Plan of the plant is given, showing how the dynamo, voltmeter, switchboards, and tanks should be connected. |