Fully automatic image measuring instruments are widely used in various industries for precise and accurate measurements.

In order to ensure the reliability of the measurement results, the accuracy of the probe must be verified regularly. This article will discuss some simple methods to verify the accuracy of the probe of a fully automatic image measuring instrument.

Method 1: Calibration Calibration is the basic step in verifying the accuracy of any measuring instrument. Follow these steps to calibrate the probe:

First choose a master part with known accurate dimensions.
Place the master parts carefully on the measuring platform.
Measure the dimensions of the main workpieces using the software of the measuring equipment.
The measurement results are compared with the known dimensions of the main workpiece.
If there is a significant difference, adjust the calibration Settings accordingly.
Method 2: Repeatability Testing Repeatability testing assesses the ability of the probe to provide consistent results when measuring the same object multiple times. Perform the following tests:

Select a test artifact with a suitable measurement.
Use the same probe to measure the test workpiece multiple times to ensure that the probe position is consistent.
Compare the results of each measurement. If the measurement results are consistent and the fluctuation is not large, it indicates that the probe has good accuracy.
Step height measurement Step height measurement is an effective way to evaluate the ability of a probe to accurately measure height differences. Follow these steps to measure step height:

Prepare a test workpiece with a known step height.
Place the test workpiece on the measuring platform.
Use a probe to accurately measure step height.
The measured value is compared with the known step height of the test workpiece.
If there is a significant difference in the measured values, the accuracy of the probe may need to be adjusted.
Method 4: Standard Block Measurement Standard blocks are commonly used precision measurement tools for calibration and verification of accuracy. The steps to perform a standard block measurement are as follows:

Choose a standard block with a known length.
The standard block is placed on a measuring platform and its length is accurately measured using a probe.
The measured value is compared with the known length of a standard block.
If there is a significant difference, the probe precision may need to be adjusted.
Conclusion: It is very important to verify the probe accuracy of automatic image measuring instrument regularly to obtain reliable and accurate measurement results. By following the methods discussed in this article, such as calibration, repeatability testing, step height measurement, and standard block analysis, the operator can ensure the accuracy of the probe. Remember, accurate measurement results can improve quality control and productivity in various industries.