The choice of light source in the measurement of the visual measuring machine is directly related to the measurement accuracy and efficiency of the measurement system, but not the light source of any part measurement is selected the same. Improper lighting will have a great impact on the measurement results of the parts. In the process of using a visual measuring machine, there are many details that we need to understand and pay attention to.

The light source of the vision measuring machine is divided into ring lights, strip lights, wheeled lights and coaxial lights. In different measurement situations, we need to choose the corresponding lamp to better complete the measurement work. We can judge whether the light source is suitable from three angles: contrast, light uniformity and the degree of background dilution. When we observe that the boundary between the measured element and the background element is clear, the brightness is uniform, and the background is diluted and uniform, the light source is suitable at this time.

When we measure high reflectance workpiece, coaxial light is more suitable; The surface light source has 5-ring, 8-zone, multi-color, multi-angle, programmable LED lights. The contour light source is a parallel LED light. When measuring complex workpieces, several light sources can be used together to obtain a variety of good observation effects and clear boundaries, which can easily achieve deep hole and large thickness cross-section measurement. Such as: cylindrical ring groove width measurement, thread measurement and so on.

In the actual measurement, we need to accumulate experience at the same time, and constantly improve their own measurement technology, master the relevant knowledge of visual measuring machine, in order to better complete the measurement work.