Magnetic field of solenoid |
1.14T (homogenous in z-direction), DC |
Temperature range |
10oC - 50 oC |
Accuracy |
0.5% -> 5mT / 4 ½ digits |
Distance between sensor and Gausmeter |
30 – 35m (will be proved) |
Distance between sensor and preamplifier |
5m |
Local dependence |
2-dim Independence of orientation |
Maximal size of the sensor (h x b x l) |
13 x 16 x 240 and 10 x 21 x 142 [mm] |
Sensor |
Radiation resistant |
Maximal radiation |
10Mrad (calculated for 10Years) |
Cable |
Radiation resistant, halogen free material |
Sensor type |
Axial |
Weight |
- |
Output |
RS232 |
Housing of the probe |
Non magnetic material |
Orientation of the field |
N-pole right / S-pole left |
Principle of measurement |
Hall |
NMR-sensor:
Advantages: Temperature independence, high accuracy (10-5),
resistant against small orientation effects (volume probe)
Disadvantage: expensive, sensible against vibration, non uniform field
measurements, AC-fields, one probe is only for a small field range, resistant
against radiation (Lake shore)
Hall-sensor:
Advantages: cheep, very small vibration effects, small probes, non
uniform field measurements, AC-field measurements possible, wide range of field
value can be covered by one probe
Disadvantage: Temperature dependence, sensible of orientation, accuracy
(10-3)
Test of the electrical unit with a 0.4T-permanent magnet (MTH). The
existing sensors were positioned on the top of the CJC.