CALIBRATION DEVICE FOR ELECTROSTATIC FIELD/VOLT METER

摘要

PURPOSE: A calibration device for an electrostatic field/volt meter is provided to correct an error of an electrostatic voltage measurement unit by comparing a voltage supplied to an electrostatic field generating plate with a voltage measured by the electrostatic voltage measurement unit. CONSTITUTION: A calibration device for an electrostatic field/volt meter includes a base member(110), an electrostatic field generating plate(120), and a holder(130). The electrostatic field generating plate is installed in the base member. The electrostatic field generating plate receives voltage from the outside. A holder includes a movable plate, a height adjustment matter, and a support play. The movable plate is installed in the base member. The height adjustment matter is installed in the movable plate. The support play is included in the height adjustment matter.