Abstract
Measuring systems using the design of laser module beams on the surface of the object under study are considered. A technique is proposed for experimental researches of the brightness structure of the study of laser modules. Adaptive algorithms on the type of module and distance have been developed for determining the coordinates of light marks on the surface of controlled products. The need for high-precision measuring systems to carry out their pre-liminary selection and calibration of laser modules according to the proposed method, taking into account the range of design of light marks, is shown. It is shown in the work that the accu-racy of determining the relative coordinates in the trajectory of the light marks of laser mod-ules for monochromatic targets can be several times higher (0.2 - 0.3 mm) than the accuracy of determining their absolute coordinates (≈ 1 mm).
Highlights
Laser modules are widely used in instrumentation systems of various branches of technology, where it is necessary to accurately determine the coordinates of the light mark on the projected surface
The accuracy of sighting of the optoelectronic system (OES) by the laser emitter marks is determined by the ability to determine the coordinates of the light spot on the surface of the object by means of some additional optical system, which is determined by the type and resolution of the recording sensor
As an OES, we used a smart camera from National Instruments (NI) – NI 1742 [10] equipped with a 533 MHz PowerPC processor
Summary
Laser modules are widely used in instrumentation systems of various branches of technology, where it is necessary to accurately determine the coordinates of the light mark on the projected surface. The measurement of the true size and other characteristics of the cross section of the laser beam during its propagation and the formation of the light mark on some surface is associated with certain difficulties, which are determined by the optical properties of the surface and the properties of the optical design system of the light mark on the recorder of photodetector. This primarily affects the accuracy of determining the coordinates of light marks. The solution to the problem of determining the coordinates of light marks in a wide range of distances of their design and of various types and instances of laser modules is very relevant, as it will improve the accuracy of devices based on them and expand the scope of their application
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