A study of electromagnet moving-coil galvanometers for use in alternating-current measurements
Book details
- Title
- A study of electromagnet moving-coil galvanometers for use in alternating-current measurements
- Publication year listed
- 1918
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
A study of electromagnet moving-coil galvanometers for use in alternating-current measurements
Year: 1918
A description of electromagnet moving-coil galvanometers for measurements on alternating currents and a presentation of the theory of their action. From the equations of motion of a coil carrying an alternating current in an alternating magnetic field it is shown that the deflection thetas = GE cos [ beta /(RU)], where G is the rate of change with the deflection of the effective value of the flux, E the effective value of the impressed e.m.f., beta the angle of lead of the impressed e.m.f. ahead of the flux, R the resistance of the moving-coil circuit, and U the moment of restoration acting on the moving system
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