QuSpin QZFM Gen-1
Ultra-sensitive zero-field magnetometer that operates in low field environments. It can be used only together with the corresponding QZFM electronics. The electronics module can operate with an 18 V or 19 V power supply. We have about 4 of these magnetometers with corresponding individualized electronics available. Typically, you can find them within the shielded chamber.
Sensitivity
The sensitivity depends on the selected output gain factor within the electronic module. The default [1x] setting corresponds to 2.7 V/nT, the [0.33x] to 0.9 V/nT, and [3x] to 8.1 V/nT.
Calibration
Currently, no calibration procedures are available.
Equalization
In the following the averaged amplitude response of all four OPMs is provided.
Typical Use Cases
Typically, the analog sensor output of the OPM electronics is connected to our 24-Bit A/D converter (NI 9239) for recording purposes, because the internal available DAQ only supports a 16-Bit resolution.
Hint: For optimal A/D input level make use of the gain factor [3x] for small magnetic signals (pT/fT-range).