2020 年 28 巻 3 号 p. 225-230
Activity of experimental small animals has been measured as one of animal experiments in the fields of neurophysiology and behavioral psychology. Although an implantable activity meter is useful for this purpose, there are problems to record for a long time because it uses batteries and to stresses animals because of weight and dimensions. A wireless power transmission system, for this reason, is useful. The stable power supply to the activity meter is necessary to generate a uniform magnetic field in the animal cage. This paper describes the design and trial production of the power transmission coil that has the required magnetic field uniformity in the cage for small experimental animal and whose self-resonant frequency is sufficiently higher than the power transmission frequency.
