CALIBRATION DEVICE FOR ELECTROSTATIC FIELD- METER

摘要

PURPOSE: A correction device for an electric field measuring device corrects the error of the electric field measuring device by comparing the input voltage of the VCC generator sanctioning the field induction market voltage and the voltage value measured at in the electric field measuring device. CONSTITUTION: A field induction member(120) comprises the second guide plate(123) separated the first guide plate(121), the first guide plate and the constant interval fixed to the base member(110). In order to induce the electric field created in the first guide plate, the second guide plate is connected to the ground. The electric field measuring aperture is formed in the central part of the second guide plate. The electric field measuring device is installed in the holder. Holder and the second guide plate are installed in absence of next and previous transaction. A elevating member is installed in absence of next and previous transaction.