PURPOSE: To provide a structure which retains the shape as a coil and can be curved by bonding a copper plate to a 'Teflon(R)' plate by using 'Teflon(R)' of a melting type, then constituting a coil pattern by etching.
CONSTITUTION: An electrode constituting inductance is formed of the copper plate having about 0.2mm thickness and the surface thereof is coated with the foamed 'Teflon(R)' in the coil part 1 of a detector. The potential of the electrode is dropped and the loss by the floating capacity with a patient is decreased by dividing inductances 4, 5, 6, 7 by capacitors 8, 9, 10. The capacitors 8, 9, 10 are constituted by attaching the electrode 5 of the copper plate to the 'Teflon(R)' 11 and inserting the thin 'Teflon(R)' 12 between the electrode 5 and the electrode 6. The electrode 6 is coated with the 'Teflon(R)' 13 and the capacitor is formed of the electrodes 5 and 6. The capacity of the capacitors is determined by the thickness and dielectric constant of the 'Teflon(R)' 12 and the superposed areas of the electrode plates 5, 6. The constant of the divided capacitors is determined by selecting these at adequate conditions.
HAMAZAKI FUMIHISA
SHIMIZU TAKAYUKI
