{"id":165,"date":"2026-03-31T15:31:50","date_gmt":"2026-03-31T06:31:50","guid":{"rendered":"https:\/\/www.san-eielectric.co.jp\/am\/?page_id=165"},"modified":"2026-04-28T12:00:14","modified_gmt":"2026-04-28T03:00:14","slug":"measurement-procedure","status":"publish","type":"page","link":"https:\/\/www.san-eielectric.co.jp\/am\/en\/measurement-reports-index\/shutter-recovery-test\/measurement-procedure\/","title":{"rendered":"Measurement Procedure"},"content":{"rendered":"\n

This test evaluates the reproducibility and stability of irradiance when illumination is resumed after the shutter has been closed.<\/strong><\/p>\n\n\n\n

Before the test, the solar simulator was sufficiently warmed up until stable irradiance conditions were reached.<\/strong><\/p>\n\n\n\n

The measurement procedure was as follows:<\/h3>\n\n\n\n
    \n
  1. The shutter was opened and irradiance at the center of the illumination area was confirmed using a pyranometer.<\/strong><\/li>\n\n\n\n
  2. The shutter was closed and the illumination was blocked for a specified duration.<\/strong><\/li>\n\n\n\n
  3. The shutter was reopened to resume illumination.<\/strong><\/li>\n\n\n\n
  4. The temporal change of irradiance was recorded immediately after the shutter reopening.<\/strong><\/li>\n\n\n\n
  5. The test was repeated under different shutter-closure durations.<\/strong><\/li>\n<\/ol>\n\n\n\n

    This procedure allows evaluation of irradiance recovery behavior and stability after shutter reopening.<\/strong><\/p>\n\n\n\n

    Measurement Position<\/h2>\n\n\n\n

    Irradiance was measured at the center of the illumination area.
    The measurement position corresponds to the center of the effective irradiation area of each model.<\/p>\n\n\n\n

    Measurement Conditions<\/h2>\n\n\n\n

    The tests were conducted under the following conditions:<\/p>\n\n\n\n