Method for and apparatus of detecting and displaying radiated noise
AssigneeFuji Xerox Co., Ltd.
InventorTadashi Kubodera
Life of this patent
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Abstract
Noise detection devices are placed at arbitrary measurement points. A selection device switches the output of the noise detection devices and an analyzer analyzes the noise amount of the frequency component for each frequency band of radiated noise. A comparison device is made up of a storage section for storing measurement data provided by a plurality of the detection devices and a comparator, and finds a difference and a greater-than, equal-to, or less-than relationship between the noise amount analyzed by the analyzer and a predetermined value in a full band or at a specific frequency or a difference and a greater-than, equal-to, or less-than relationship between the noise amounts at two points. Output of the comparison device is displayed on a display device.
Claims9
A radiated noise measurement apparatus for measuring radiated noise generated from a unit on which measurement is to be made, said apparatus comprising:
- a plurality of noise detection means being placed at arbitrary measurement points on the unit for detecting radiated noise on the unit,
- selection means for switching detection output from said noise detection means, and
- analysis means for analyzing a noise amount for each frequency component from the detection output selected by said selection means.
Dependencies are inferred from the claim text.