生物育种用无极调频可变磁场发生器的研究

装置分为输出磁场的磁路部分、激励磁场的电路部分,以及以DSP为控制核心的控制部分。磁路部分设计为带气隙的环回形,励磁线圈中配有铁氧体磁芯可以大大增强装置输出的磁场强度,交变磁场产生于气隙即为实验区。电路部分采用的是桥式拓扑结构,控制部分采用改进的锁相环使得逆变器工作在小感性的准谐振状态,确保整个装置安全、稳定、高效的运行。最后通过仿真验证了装置的可行性,实验结果表明:该交变磁场发生装置能够连续地调节磁场频率和场强,育种效果得到认可。

The Research of Biological Breeding by Infinitely FM Variable Magnetic Field Generator

The device is divided into the output magnetic field of magnetic circuit parts、excitation the magnetic field of circuit part and the control section with the DSP as the core .Magnetic circuit part is designed for the loopback shape with the air gap , The magnet coil equipped with ferrite core can greatly enhance the output of the magnetic field strength , the alternating magnetic field generated by the air gap and it is the experimental area .Circuit part uses a bridge type topology structure , the control part adopts improved phase lock loop make the inverter works in a small perceptual quasi resonant state .To ensure the device safety , stable and efficient operation .Finally , the simulation verify the feasibility of the de-vice .The experimental results show that the device of the alternating magnetic field generator can continuous adjust mag -netic field frequency and field strength .