Examination of Magnetic Force Calculation Formula on the Central Axis of the Magnetic Guiding Magnet for Capsule Endoscope

Abstract

In this report, the validity of the theoretical formula for the magnetic force acting on a steel ball from a Magnetic guiding magnet is examined by t-test. Also, considered whether the theoretical formula can be applied to the calculation of the magnetic force. As a result, the validity was shown because there was a very strong correlation between the analytical value and the calculated value of the magnetic force at the significance level α of 1%. Then, it was suggested that the calculation by the theoretical formula of the magnetic force can be applied at 80 < l ≤ 120 mm. And the constant of the capsule endoscope estimated as 1.8×10^-12 H･m².