{"id":2281,"date":"2015-06-01T00:00:54","date_gmt":"2015-05-31T15:00:54","guid":{"rendered":"https:\/\/micronix-jp.com\/?p=2281"},"modified":"2023-03-20T17:18:55","modified_gmt":"2023-03-20T08:18:55","slug":"ems_probe","status":"publish","type":"post","link":"https:\/\/micronix-jp.com\/english\/note\/application\/ems_probe.html","title":{"rendered":"Measures against radiated immunity test using electric field probe"},"content":{"rendered":"

Pre-compliance EMS(immunity) testing<\/p>\n\n\n

Application<\/h2>\n

Instead of carrying an equipment to be measured (EUT) to the EMC test site and accomplishing the immunity test many times, it is possible to perform a disturbance wave test easily. <\/p>\n

Operate a dedicated program and measure the electric field strength of disturbance radio waves. <\/p>\n

Follow the on - screen instructions on the GUI and measure the target area (max. 4) with the electric field probe.<\/p>\n

The calibration data with high degree of freedom is automatically created while changing the position of the probe in order to improve the test accuracy.<\/p>\n\n\n\n

Solution<\/h2>\n

Install an electric field probe on the EUT installation stage in the anechoic box. The calibration data is automatically created by the test software according to the size of EUT.<\/p>\n

    \n
  1. Install an electric field probe at an arbitrary position on the stage.<\/li>\n
  2. Align it on the EUT face facing the antenna, and measure the electric field strength (max. 4 places).<\/li>\n
  3. Record the calibration data of each position according to the target frequency range.<\/li>\n
  4. Install the calibration data in test software and start EMS precompliance test.<\/li>\n<\/ol>\n\"Pre-compliance \n\n\n

    System configuration<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n<\/tfoot>\n<\/table>\n\n\n\n

    Products introduction<\/h2>\n

    [Basic configuration]<\/th>\n<\/tr>\n
    Electromagnetic anechoic box<\/a><\/td>\n<\/tr>\n
    Log PeriodicAntenna <\/td>\n<\/tr>\n
    Electric field probe<\/td>\n<\/tr>\n
    Power Amplifier ( until 1GHz )<\/td>\n<\/tr>\n
    Signal generator ( until 1GHz )<\/td>\n<\/tr>\n
    PC \/ Immunity test software<\/td>\n<\/tr>\n
    [OPTION]<\/th>\n<\/tr>\n
    EUT camera monitor<\/a><\/td>\n<\/tr>\n
    Log PeriodicAntenna <\/td>\n<\/tr>\n
    Power Amplifier ( more than 1GHz *negotiable)<\/td>\n<\/tr>\n
    Signal generator ( more than 1GHz *negotiable)<\/td>\n<\/tr>\n
    RF Selector<\/td>\n<\/tr>\n
    Interlock mechanism<\/td>\n<\/tr>\n<\/tbody>