Application Cases

About Electromagnetic Testing

Electromagnetic testing research, as a crucial support in the field of modern technology, holds significance and importance on multiple levels. It profoundly impacts technological development, social safety, and industrial upgrading. It is a core element in ensuring the stable operation of electronic information systems.

Power amplifiers, as an essential part of electromagnetic testing systems, possess good bandwidth and linear characteristics. They can provide sufficiently strong excitation signals for electromagnetic testing and play an indispensable role in the field of electromagnetic testing research. Aigtek, a leading electronics company, will share some recent experimental cases in the field of electromagnetic testing to assist engineers in related fields.

Experimental Case Demonstrations

▼ Application of Power Amplifiers in the Motion Control of Photo-Polymerizable Magnetic Robots

In this experiment, under an inverted microscope, three ATA-2042 high-power amplifiers were connected to the output ends of a microcontroller chip and the electromagnetic coil system's five coils. By sending commands from a host computer and amplifying them through the amplifiers, the electromagnetic coil system was controlled. The generated multi-modal magnetic fields controlled the motion of the photo-polymerizable robots.

▼ Application of Power Amplifiers in the Generation of Time-Modulated Sequences for Electromagnetic Materials

In this experiment, based on time-encoded sequences, square wave signals generated by an arbitrary signal generator were amplified by power amplifiers to produce control voltage signals. These voltage signals controlled the operating state of diodes in electromagnetic materials, enabling dynamic regulation of electromagnetic wave radiation and scattering.

▼ Application of Power Amplifiers in Drug Delivery by Magnetic Soft Micro-Robots

In this experiment, a fish-like soft robot was designed to swim freely in three dimensions within narrow, unstructured liquid environments. Driven by magnetic fields, the robot could mimic the swimming behavior and capabilities of fish, offering a potentially revolutionary diagnostic and therapeutic method for targeted treatments within the body.

▼ Application of High-Voltage Power Amplifiers in High-Frequency Magnetic Core Loss Measurement

In this experiment, the frequency range was 50kHz to 500kHz, and the magnetic flux density amplitude was between 0 and 0.2T. The losses in toroidal magnetic cores were measured under sinusoidal and PWM wave excitation. A signal generator produced the required waveforms, which were then amplified and input into the primary side of the magnetic core. The losses within the toroidal magnetic core were measured using the dual-winding method.

▼ Application of Underwater Acoustic Power Amplifiers in the Design of Breathing Magnetic Cores Based on Vector Magnetic Circuit Theory

This experiment aimed to calculate the magnetic reluctance and flux of breathing magnetic cores. Three sets of magnetic cores with different pore diameters were prepared. Two magnetic cores were assembled to form a closed magnetic circuit, with both the primary and secondary windings wound on the center column. Three measurement points were set on the closed magnetic circuit to monitor the temperature of the magnetic cores during the experiment.

▼ Application of High-Voltage Amplifiers in Exciting Low-Frequency Reconfigurable Magneto-Electric Antennas

Based on the mechanical oscillation principle of magneto-electric antennas, this study proposed a super-low-frequency reconfigurable magneto-electric antenna using a mechanical adjustment method. The multidimensional performance of the magneto-electric antenna, such as operating frequency, bandwidth, and quality factor (Q), could be adjusted over a large dynamic range without damaging the antenna structure. An equivalent circuit model of the magneto-electric antenna was also constructed based on its oscillation theory, and the multidimensional tuning methods were quantitatively analyzed. Finally, a prototype was built, and the reconfigurable characteristics of the magneto-electric antenna were tested in both mechanical and electromagnetic domains, verifying the feasibility and effectiveness of the mechanical tuning method.

After years of accumulation, Aigtek has established its own power amplifier application case library, gathering cutting-edge experimental research results to help researchers expand their thinking and break through innovation! More power amplifier application cases will be shared in the future, so stay tuned.