The invention provides a PCB (
printed circuit board) defect
mass detection
system, which comprises a
thermal infrared imager, a
black body, a detection platform, a
pressure sensor, an image format conversion module, a power supply and control module, a counting and timing module and an analysis platform, wherein the
thermal infrared imager collects the
infrared radiation energy of a detected PCB and outputs corresponding
infrared images, the
black body provides reference for the target
temperature measurement, the power supply and control module provides excitation signals of the detected PCB, and controls the work of the
thermal infrared imager, the counting and timing module carries out counting coding on the detected PCB and records the
excitation signal duration of the detected PCB, the analysis platform analyzes and processes the temperature information and
infrared images of the detected PCB in the electrified stage, the fault information of the detected PCB is obtained, and a statistical form is produced. The PCB defect
mass detection
system has the advantages that the infrared images of the tested PCB in the electrified state are obtained, various kinds of circuit faults can be automatically detected, the detection fault range is wide, and the
fully automatic fast and continuous detection is realized.