Electromagnetic noise measurement apparatus, electromagnetic noise measurement method and recording medium
US6509742B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2000 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jan 18, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/0821
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The object of the present invention is to provide an electromagnetic noise measurement apparatus, electromagnetic noise measurement method and recording medium capable of preventing erroneous measurement of electromagnetic noise and of enhancing measurement efficiency. An electromagnetic noise measurement apparatus includes a PC, a field intensity meter, a spectrum analyzer, a preamplifier, a controller, a printer and the like. The controller is connected to a turn table for turning an electromagnetic noise measurement target, e.g., a copying machine, and to an antenna elevator for elevating an antenna for measuring electromagnetic noise radiated from the copying machine. The controller controls the turn table and the antenna elevator according to command of the PC. The PC compares a QP value acquired by the field intensity meter with a peak level acquired by the spectrum analyzer, and displays an error message if the difference between the QP value and the peak level is large.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.