NMR-EA300 System
Générateur de champ magnétique absolue
The magnetic field reference
The NMR-EA300 system is a caliration bench for magnetic sensors. It allows to generate an absolute magnetic field at <±10mG (0.1 uT) without temperature drift (<0.1ppm/C°) over a range from 14mT to 3T. This system is composed of an EA300 electromagnet with high homogeneity poles, a MPU-16U ±150A ±70V current source of class 1ppm and a NMR20 Teslameter with a magnetic field controller (FR020).
A thermostat chamber can be installed in the air gap (Optionally available on 50mm and 70mm gap poles).The NMR-EA300 system is a calibration bench for magnetic field sensors.
A thermostat chamber can be installed in the air gap (Optionally available on 50mm and 70mm gap poles).The NMR-EA300 system is a calibration bench for magnetic field sensors.
The complete mapping of the air gap on different points of the control range is provided with a resolution of 0.5mm
Scope and Homogeneity of the Poles
| Gap G | B max | Face D | Homogénéité ² | Homogeneity/CUBE |
| 11 mm | 3.03T | 95mm | 0.1%/5x5 | 0.25%/5x5x5 |
| 20mm | 2.50T | 145mm | 0.03%/10x10 | 0.9%/10x10x10 |
| 30mm | 2.12T | 195mm | 0.01%/15x15 | 0.02%/15x15x15 |
| 50mm | 1.60T | 245mm | 0.04%/15X15 | 0.07%/15x15x15 |
| 70mm | 1.21T | 300mm | 0.1%/20x20x20 | 0.18%/20x20x20 |
Specific request
* Required fields.