Image measuring instrument about the magnification of two-dimensional image measuring instrument

by:Sinowon     2021-05-09

The magnification of the image measuring instrument about the two-dimensional image measuring instrument. The magnification of the measuring instrument includes two aspects: optical magnification and digital magnification. The magnification based on some imaging principles is called optical magnification, and the expansion after processing the electronic circuit is called digital magnification. The lens images the object to the photosensitive of the CCD. On the unit, this is a simple optical imaging, following some optical principles. The optical magnification partly determines the magnification of the imprint, and partly determines the size of the field of view that the CCD can see. The digital magnification is called the CCD photosensitive unit through the processing circuit The digital magnification when displaying pictures on the screen. The table is the magnification from CCD to the display. The commonly used CCD sensor chip standard is 1/3. There are 5 standards, such as 13 inches, 17 inches, 27 inches and so on. The magnification from CCD to display can be found in the table. The ratio of the actual size of the measured object to the impression size of the display is the magnification of the impression. The measurement system of a two-dimensional indentation measuring instrument optically expands the object to be measured through a lens, and when the indentation is transmitted through a digital signal, its processing process is also expanded. The magnification from the ratio of the object to the ratio of the impression is called the magnification. The calculation formula of the magnification of the two-dimensional impression measuring instrument is as follows: impression magnification\optical magnification×digital magnification. The magnification of the two-dimensional impression measuring instrument includes two aspects: optical magnification and digital magnification. The magnification based on some imaging principles is called optical magnification, and the processed electronic circuit is called digital magnification. Optical magnification refers to putting the lens on the photosensitive unit of the CCD. This is a simple optical imaging that follows some optics. principle. The optical magnification part determines the magnification of the imprint, and partly determines the size of the field of view that the CCD can see. The digital magnification is called the digital magnification when the CCD photosensitive unit displays the picture on the display through the processing circuit. The table is from CCD to The magnification of the display. The commonly used CCD sensor chip has a 1/3 standard. There are five standards including 13 inches, 17 inches, and 27 inches. The magnification from the CCD to the display can be found in the table. The ratio of the actual size of the measured object to the impression size of the display is the magnification of the impression. The measurement system of a two-dimensional indentation measuring instrument optically expands the object to be measured through a lens, and when the indentation is transmitted through a digital signal, its processing process is also expanded. The magnification from the scale of the object to the scale of the impression is called the magnification, and the calculation formula for the magnification of the image measuring instrument is as follows: impression magnification optical magnification × digital magnification.

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