| 摘要 |
PURPOSE:To facilitate configuration design of magnetic members such as magnetic fragments in color CRT, by constituting a circuit so as to calculate variations of an integrated magnetic field value correlating to an electron orbit variation value. CONSTITUTION:A magnetic field measuring equipment 100 for measuring magnetic field within a region affected by a magnetic fragment is composed of the main frame of a measuring equipment 101 and a probe 102. An operating circuit 105 calculates variations of an integrated magnetic field value according to data from a storage circuit 104, which stores integrated values obtained by integrating measured values of magnetic field at an integration circuit 103. By this equipment, variations of integrated values obtained by integrating magnetic field within the region affected by a magnetic member is calculated as variation values of electron beam orbit.
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