The invention relates to an induction
power transmission apparatus used for an aircraft engine rotor remote-measuring
system. The induction
power transmission apparatus comprises a high-frequency
inverter circuit, a detachable
transformer and a rectifying
voltage-regulating circuit; the detachable
transformer comprises two circuit PCB plates, wherein the two circuit PCB plates are the same and one surface of each plate is printed with
helical lines; a central open pore provides an optical transmission access for a
laser; the surfaces with the
helical lines of the two PCB plates are opposite and coaxially mounted; air gaps exist between the two PCB plates; the back surfaces of the two PCB plates are covered and glued by flexible soft magnetic sheets with high magnetic
conductivity; the output end of the high-frequency
inverter circuit is connected with the
helical lines to be used as a primary side, and the primary side is a static part; and the input end of the rectifying
voltage-regulating circuit is connected with the helical lines to be used as a
secondary side, and the
secondary side is a rotary part and mounted at the shaft end of a rotation shaft. According to the induction
power transmission apparatus, non-contact power transmission is realized based on the
electromagnetic induction principle; the adopted detachable
transformer has the advantages of being light in the whole weight, small in axial size, easy to manufacture and convenient to
mount, so that the induction power transmission apparatus is suitable for the aircraft engine rotor remote-measuring
system and other high-speed rotary equipment.