With the advancement of science and the development of the times, the quality of production parts is getting higher and higher. So far, we have checked the length, width, and height of parts, using traditional contact measurements such as calipers, micrometers, and spiral measuring instruments to measure position, shape tolerance, distance, etc., and calculate according to formulas. This measurement process is not only troublesome, but also The accuracy achieved is no more than millimeters and microns.
In today's intelligent era, our measurement industry has also undergone earth-shaking changes. People are pursuing higher and higher precision of products. Through scientific image analysis and calculation methods, our accuracy can reach microns or even nanometers. Caliper-projector-manual video Measuring Instrument-Semi-automatic Video Measuring Instrument-fully automatic video measuring instrument not only changes the appearance of the machine, but also changes the intelligent, high-precision and diverse measurement methods. In addition to our very common three-dimensional coordinate measuring instrument and height measuring instrument, several methods introduced below can also measure height.
The first method:
Contact measurement, in relatively rough cases, can measure parts with millimeter-level accuracy. It does not require full-size measurement. It only needs to be pulled out for inspection, and the height of the traditional measuring instrument vernier caliper can be directly measured. This allows for fast measurement, and the measurement accuracy is not high, but it can meet the measurement needs.
The second method:
For contact measurement, for components with very high measurement accuracy, you can choose an image measuring instrument with a probe added. This is equivalent to a small three-dimensional coordinate measuring instrument, which is what we call a compound image measuring instrument. Where the height needs to be measured, a probe is used to take elements (points or surfaces) and the height is calculated in the software.
Third method:
For non-contact measurement, choose an automatic z-axis image measuring instrument and use the z-axis autofocus function of the image measuring instrument software to measure height. The measurement can reduce human errors. No matter who measures, they can measure the same value. It is very simple and convenient.
All in all, there are many ways to measure height using an image measuring instrument. Whether we choose contact height measurement or non-contact height measurement, it mainly depends on what kind of measuring instrument we choose. High-precision instruments will be an important trend in future development.
