Products

Standard field coil according to Helmholtz

In the measurement of magnetic fields by means of Hall probes or measuring coils it is necessary to calibrate the instruments in a known magnetic field. In series arrangement with an accurate ammeter field strengths of up to circa 800 A/cm are produced. The field room is accessible both in axial and radial direction.

Coil constant:	ca. 200 A/cm ±1 %
Coil current:	4 ampere maximum
Duration of operation:	25 % or 5 minutes
Field measurement for 1 % accuracy:	12 mm Ø x 20 mm
Axial opening:	50 mm Ø
Radial opening:	8 mm Ø
Resistance:	ca. 2 x 10 ohms