US4059798A
(en )
1977-11-22
Method and apparatus for measuring the current flowing in a workpiece
EP0385597A3
(en )
1990-11-07
Measurement of ph and specific ion concentration
GB561850A
(enrdf_load_stackoverflow )
Paterson et al.
1913
The use of the electrostatic method for the measurement of power
Edgcumbe
1918
Industrial electrical measuring instruments
CN214585719U
(zh )
2021-11-02
一种低阻抗磁电式直流微安表
GB966443A
(en )
1964-08-12
Improvements in multi-range hook-on electrical indicating instrument
Kumar
2025
Principles of Electrical Measurement and Measuring Instruments
Braudaway
2003
The costs of calibration
Clark
1874
I. On a standard voltaic battery
Wilson
1921
On the measurement of low magnetic susceptibility by an instrument of new type
Hawkes et al.
1955
An electrical engineering review. Wattmeters
Ferdous et al.
2021
Flexible form factor digital optical current sensor with triple redundancy
US4179655A
(en )
1979-12-18
Moving coil instrument with linear characteristic
Drysdale
1928
Electrical measuring instruments other than integrating meters
Kawamura et al.
1989
Design and development of new electrostatic voltmeter using strain gauge
Hopley
1959
Maxwell's determination of the number of electrostatic units in one electromagnetic unit of electricity
SU1555672A1
(ru )
1990-04-07
Трансформаторный мост дл измерени малых сопротивлений
GB190304698A
(en )
1904-02-11
Improvements in Electrical Measuring Instruments
SU572730A1
(ru )
1977-09-15
Способ измерени величины векторного магнитного потенциала
Wilson et al.
1913
Discussion on “The use of the electrostatic method for the measurement of power”
Drysdale
1931
Electrical measuring instruments other than integrating meters
Norton
1901
Conditions affecting the rated performance of wattmeters
Chu et al.
1993
An optical current comparator
GB672145A
(enrdf_load_stackoverflow )