An important part of today's X-ray diffraction equipment is the software package that supports all common diffraction methods. The stress software must be able to use the established methods to calculate the normal stress and shear stress components and the complete stress tensor. The software should be clearly structured and easy to handle. The measurement parameters, evaluation conditions and results must be clearly documented, and should be stored in some standard data format to allow further use of, for example, standard word processing and desktop publishing programs. Standard measurements should interact as little as possible. For more complex applications, greater flexibility is needed to select measurement and evaluation parameters. If the intermediate results can be used in user-designed software for further evaluation, this will be very helpful.
In AM, the power density of the Laser pointer beam may exceed 1 MW/cm2, so accurate measurement is required. Dirty or damaged optics can severely affect the beam profile and may cause power management errors.
The power density produced by the laser determines the precise degree of the interaction between the laser and the material and the result of the interaction. For example, ablating plastic requires much lower power density than cutting 1 inch thick steel because the two materials interact differently with the laser beam.
A good measurement can ensure that the spot size is kept within a limited window, thereby achieving a consistent, stable and correct laser engraver power density.
The focus shift in the Z direction (perpendicular to the workpiece) is caused by the thermal effect of the laser components: especially transmission optics, such as focusing lenses and protective cover slides. As the focus changes, the spot size also changes, thereby changing the power density. This changes the way the blue laser pointer with the material.
The foundation has conducted clinical tests on 30 women with dry skin (keratin meter less than 60 RU), on a random side of the face and inner forearm. One side is treated with the formulation, while the other side is untreated. The research aims to balance the 15 volunteers on the right and 15 volunteers on the left. The group members are between 30 and 50 years old. Apply the product for six weeks, twice a day. The readings were taken three and six weeks before the test. All measurements are carried out in a biological constant temperature chamber under standard conditions and kept constant during the test.