What should I do if the measurement results of the image measuring instrument are inaccurate?

During the use of image measuring instruments, inaccurate measurement results may occasionally be encountered. Here are some common causes and solutions.

1. Improper light source setting

Light source is a key factor in image measurement. If the light source brightness is too high or too low, it will lead to inaccurate edge recognition, thus affecting the measurement results. It is recommended to choose the appropriate light source type (ring light, contour light, coaxial light, etc.) and brightness according to the material and color of the workpiece to ensure clear image edges.

2. Changes in ambient temperature

Changes in the temperature of the measurement environment will cause dimensional changes in the workpiece and equipment, affecting measurement accuracy. It is recommended to use it in a constant temperature environment. After starting up, wait for the temperature of the device to stabilize before measuring, and use standard parts for calibration verification.

3. Equipment calibration failure

After long-term use, the equipment's grating ruler, lens and other components may deviate and require regular calibration. It is recommended that standard gauge blocks be used for accuracy calibration at least once a month, and comprehensive calibration by professional technicians every year.

4. Operator factors

Operators' different ways of selecting edge points may lead to differences in measurement results. It is recommended to use the automatic edge recognition function to reduce human errors. At the same time, systematic training is provided to operators to ensure standardized operations.

5. Workpiece cleanliness

Oil stains, burrs, etc. on the surface of the workpiece will affect edge recognition. Make sure the surface of the workpiece is clean before measurement.