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Updated: Aug 12, 2025

High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
Published on: May 12, 2023
A customized control and readout device for vector magnetometers based on nitrogen-vacancy centers
Yu Tong1, Wenzhe Zhang1, Xi Qin1
1CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China.
Abstract:
A customized control and readout device, which is developed to perform real-time measurement for vector magnetometers based on nitrogen-vacancy centers, is presented in this paper. A dual-channel analog-to-digital-converter chip, which has a 25 MSa/s sampling rate and a 16 bits amplitude resolution, is integrated for analog signal acquisition. The data processing and the system control are realized using a Xilinx Kirtex-7 field-programmable-gate-array chip. Eight independent lock-in modules, a four-channel proportional-integral-derivative controller, a reference generator, and a vector field reconstruction module are integrated with the Kirtex-7 device in order to perform the real-time vector magnetic field measurement. The device has a bright future to be applied in practical applications.
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