Dual-valve automatic calibration system and dual-valve automatic calibration method

A dual-valve automatic calibration method, comprising:

• information for positions of the first coating zone and the second coating zone on a target circuit board is detected such that the first fluid coating unit and the second fluid coating unit move in directions of the X-axis and the Y-axis through the primary positioner for primary positioning;
• first-error information corresponding to first obliquity or first unevenness of the first coating zone on a target circuit board is detected such that the first fluid coating unit moves in the direction of the Z-axis through the first secondary positioner for secondary positioning and automatic calibration;
• second-error information corresponding to second obliquity or second unevenness of the second coating zone on a target circuit board is detected such that the second fluid coating unit moves in directions of the X-axis, the Y-axis and the Z-axis through the second secondary positioner for secondary positioning and automatic calibration;
• and
• fluids are coated on the first coating zone and the second coating zone by the first fluid coating unit and the second fluid coating unit, respectively.