INSTALLATION FOR RESEARCH OF ELECTROMAGNETIC FIELD OF HELMHOLTZ COILS

摘要

FIELD: electricity.;SUBSTANCE: installation contains Helmholtz coils, which winding ends are connected to output terminals of audio-frequency generator. The coils are installed at the support having a graduated scale. A movable platform with position indicator moves along the support by means of belt drive. The measuring coil is installed at support perpendicular to it. At the support between Helmholtz coils at level of their axis there is a reference coil installed in parallel to the measuring coil. Toroidal coil is fixed at the moving rod with position indicator at a dial scale with grade divisions. There is also a phase difference metre which first inputs are connected to the system recording electromotive force and the second inputs are connected to the reference coil. Two-way bipolar switch ensures connection either of the measuring coil or toroidal coil to inputs of the system recording electromotive force and first inputs of phase difference metre.;EFFECT: expanding the research area and improving measurement accuracy.;9 dwg