Selection of measuring projector note

1 testing worktable moving straightness, parallelism, perpendicularity, grating quality and accuracy, data processor quality, whether the number of hops, leakage.

Lighting lighting 2 measuring projector, the crucial Oh; divided into 2 light transmission, reflection, there are very few desktop measuring projector share a lamp; commonly used for 12V150W, Osram, Philips.

3 projection screen, travel of working table size can be customized, according to your own workpiece measurement needs; but to take into account the stability and harmony of the whole machine, general large workpiece must first with manufacturers and technical design staff to communicate and confirm. To ensure accuracy, but also guarantee the stability of the structure.

Focusing range 4 measuring projector is generally between 80-100mm, focusing is one of the important parameters of the optical system; focusing effect directly affect the measurement results, especially the contour comparison measurement.

Measuring projector vertical optical path system, work platform in the lifting process, because the weight of institutions as well as the table will cause the image on the screen to swing or even distorted, this is because the table lift system or single guide rail, and demanding the lifting process of the rise, under the tight loose; the two focusing or measurement surface in the measurement are not in the same plane is too large will error; now most of the manufacturers are not using dual rail elevating mechanism advanced. At present, only very few domestic manufacturers using this structure.

The 5 optical path suggested the use of reverse optical path difference between forward and reverse, the only measurement of habit.

6 see the light intensity on the screen, the illuminance around 5 point of view the projection screen is uniform (how to detect if the author sells a crisis, if you want to know, please contact our service engineer); deviation scale calibration of the optical system, the national standard is within the transmission within 0.08%, reflection 0.12%, a foreign brand reflection can be controlled within 0.09%.

Cooling system 7 at the same time to view the measuring projector, the conventional one and two auxiliary fan.

8 see stability measuring projector body structure, the use of materials is jerry-built; even the thickness of the shell should be taken into consideration.

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