Accessory

NI-9205 Data Acquisition Unit

16-bit analog recording for up to 16 QZFM sensors, using the NI-9205, the cDAQ-9171 chassis, and the QuSpin connector adapter.

QZFM analog output

Each QZFM provides an analog output via a 2.5 mm audio port on the back of the electronics module. The analog output can be used to record the magnetometer signal with any data acquisition system. The voltage to magnetic field conversion factor of the analog output is 2.7 V/nT for both channels.

NI-9205

The National Instruments NI-9205 (Figure 1) is a 32-channel data acquisition unit that can be paired with the cDAQ-9171 (a compact bus‑powered USB chassis) and the QuSpin Connector Adapter (Figure 2) to provide 16-bit data recording for up to 16 QZFMs (2 channels per sensor). The NI DAQ channel assignments with the QuSpin Connector Adapter is shown in Figure 3.

NI-9205 module with D-Sub connector
Figure 1: The NI-9205 with D-Sub connector.
The assembled NI data acquisition package with QuSpin connector adapter
Figure 2: The NI Data Acquisition package.

QuSpin DAQ UI for NI-9205

We have developed a User Interface (UI) for the NI DAQ based on LabVIEW that can be used with the QZFM sensors. However, it is not necessary to have the LabVIEW software installed to run the UI. Just download and install the free NI-DAQmax Runtime 16.1 prior to running the executable UI.

Dual axis sensors

QuSpin NI-9205 Data Acquisition UI Executable (.exe) QuSpin NI-9205 Data Acquisition UI Open LabVIEW source (.vi) NI_9025_Adapter_Board_Schematic_V2 Schematic and PCB files for the custom NI-DAQ adapter board (PDF)

Triaxial sensors

QuSpin NI-9205 Triaxial Data Acquisition UI Executable (.exe) QuSpin NI-9205 Triaxial Data Acquisition UI Open LabVIEW source (.vi)

Connector adapter signal routing

Dual axis sensors

NI-9205 connector adapter pin assignments for dual axis QZFM sensors
Figure 3: NI-9205 connector adapter pin assignments — dual axis sensors.

Triaxial sensors

NI-9205 connector adapter pin assignments for triaxial QZFM sensors
Figure 4: NI-9205 connector adapter pin assignments — triaxial sensors.

Pricing

QuSpin NI-9205 Adapter board — $300

The NI-9205 module and cDAQ-9171 chassis are purchased separately from National Instruments.

Digital data from the QZFM UI is sampled asynchronously at 200 Hz; a 16-bit DAQ is recommended for synchronous multi-sensor recording.
Quick Start Guide QZFM Gen‑3