| 摘要 |
PURPOSE:To efficiently perform the electrical inspection of a printed circuit board and the inverse loading of a part to be mounted by adding a sensor part in addition to the electrical inspection of a test head part due to the contact with a probe pin. CONSTITUTION:For example, when a photoelectric switch is utilized as a shape discriminating sensor 3, the photoelectric switch emits light such as visible light or infrared rays from a projection part as signal light and the light reflected from an object to be detected is detected by a light detection part or a change in the quantity of blocked light is detected by the light detection part to obtain an output signal. In the inspection apparatus of a printed wiring board 1, when the sensor 3 is arranged at a characteristic position by utilizing the feature of the shape of a part subjected to shape inspection among loaded parts 2 or the color of said part in order to prepare the test head part 4 inherent to the printed wiring board to be inspected, a sensor output signal 5 discriminating whether the loaded part 2 is present at a normal position can be obtained. By this constitution, the electric inspection of the printed circuit board and the inverse loading of the loaded part can be efficiently inspected. |
