Journal: Journal of magnetic resonance open
Article Title: Automated test apparatus for bench-testing the magnetic field homogeneity of NMR transceiver coils
doi: 10.1016/j.jmro.2023.100142
Figure Lengend Snippet: Wiring schematic of the Auto-Ball Shift electrical components. The Arduino board is powered directly by a standard laptop, and its 5V/GND pins are used in turn to power the A4988 driver. The Arduino program commands the driver, which then regulates the stepper motor action. A tactile push button is used to initiate the benchtop experiment. An LED serves as an indicator for when the experiment has started. The motor is powered with an external 9V power supply.
Article Snippet: The Pololu A4988 (Las Vegas, USA) stepper motor driver carrier was utilized to control the degree of rotation of the stepper motor.
Techniques: