Why are the FW series magnetometers superior to normal NMR magnetometers?
The FW series magnetometers are based on flowing water NMR (Nuclear Magnetic Resonance) technique. The FW101 can measure a very low magnetic field down to 1.4 m T (0.014 gauss) and the FW201 can measure a very high magnetic field up to 23.4 T. Please refer to the following Table.1 and Fig.1 to see the difference. TYPE Field Range Absolute Accuracy Relative Accuracy up to Sample Number of Probes Normal NMR Magnetometer 43 mT 2.1 T 1×10 -5 2×10 -7 1H 5 1.5 T 13.7 T 1×10 -5 1×10 -6 2H 3 FW series Magnetometer 1.4 m T 2.16 T 5×10 -6 1×10 -7 1H 1 0.7 T 23.4 T 5×10 -6 1×10 -8 1H 1 Table. 1 FW series magnetometer vs normal NMR magnetometer Fig. 1 Field range of probes ( FW series magnetometer vs normal NMR magnetometer) Q: How does the FW magnetometer measure magnetic field? A: The FW magnetometer consists of five dedicated devices: a high magnetic field polarizer, a flowing water type probe, a synthesized frequency source (50 Hz 100 MHz with resolution 0.01Hz), a proton magnetic polarization
