MICRONIX

Checking magnetic field emission noise of LED luminaire easily

With handheld spectrum analyzer,the radiated noise characteristics of LED luminaire can be simply checked.
  Since effect of measures can be immediately estimated by easy measurement, development period is shortened and cost is reduced.

[Application]

Recently, LED luminaire has been spread rapidly but the noise radiated from built-in AC-DC converter causes problems.

For this reason, Electrical Appliances and Material Act is applied to it in Japan. Method of measuring the noise is also defined in CISPR but it is difficult to check the effect of measures immediately since equipment cost is very expensive.

With our system combining handheld spectrum analyzer with loop antenna, the magnetic field radiation noise characteristics can be checked easily and by inexpensive cost.

This is not a formal evaluation system for obtaining certification. However, the effect of measures can be immediately confirmed since it is possible to check the existence of unnecessary noise and frequency characteristics simply. As a result, development period is shortened and development cost is reduced.

[Solution]

Result of radiated magnetic field strength measurement at 0 to 500kHz

Figure:Result of radiated magnetic field strength measurement at 0 to 500kHz

Photo:Loop antenna and Handheld spectrum analyzer MSA438

[System configuration]

3.3GHz Spectrum analyzer (MSA438)
Dedicated battery (MB400)
Loop antenna (MAN120)
Connection cables

*MICRONIX Corporation reserves the right to make changes in design, specification and other information without prior notice.

[Products introduction]

2010/8

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