Is there a difference between 2-dimensional and 2.5-dimensional image measurement tools?

2.5-dimensional measuring instrument is a new term in the field of industrial inspection and measurement technology. It represents advanced measurement technology, integrates digital technology in industrial inspection and measurement, and performs spatial geometric calculations.

The second dimension refers to the two-dimensional measurement of the optical image measurement instrument, that is, the two-dimensional measurement of the plane. The secondary element is mainly used for optical measurement of two-dimensional planes, such as two-dimensional optical image measuring instrument, binary projection, binary microscope, etc. The secondary element measuring instrument can quickly read the displacement value of the optical scale. the calculation of the software module based on space geometry, the desired result is obtained immediately, and a graph is generated on the screen for the operator to view images and sshadows, in order to distinguish deviations in the measurement results as intuitively as possible.

The 2.5-dimensional measuring instrument is mainly divided into two types:

1. It is based on the 2-dimensional measuring instrument and adds a simple (optical) measuring instrument High performance, when the surface roughness measurement accuracy is good, it can only reach within 0.02.

2. Based on the original two-dimensional measuring instrument, a precision measuring probe has been added, which can measure height (depth) and some single three-dimensional functions, such as: cylinder, cone, ball, etc., the measurement accuracy can generally be within 0.01, but when measuring the depth, the diameter of the probe directly limits the size of the hole, generally the smallest diameter can only reach 3mm, and the hole depth can only be 20mm. It should be taken into account that individual small wepieces and easily deformable parts cannot be measured with contact measurement methods.

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