In W.L. hao weiss, "rainbow type grain shadow instrument and Mach - mach-zehnder interferometer match", journal of applied optics, 1985, 24 (6, pp. 822-816 describes an analyte to detect a straightness of rainbow lines outside shadow instrument device, the spatial filter with a color plate instead of a knife edge.Dish in the middle of the area is lit, the first lap with the first color, second round for the second kind of colour, other ring of colors each have differences.If measured outside is stereo, it look like on the screen for the red;The opposite to color differences.Measured outside though using the method can simultaneously detect differences in radial gradient change, but the problem is the plant measured outside of the cutting means less sensitive to the gradient change, is a theory is a kind of semi-quantitative method.In s. klein, such as "used in the quantitative mapping development around the crystal solution concentration on the surface of the dark field type schlieren microscope", "journal of crystal development, 1997, 179, pp. 248-240 introduces a quantitative measurement of development around the crystal in solution concentration on the surface of the dark field type schlieren instrument microscope, the method of fundamental device for a grain shadow instrument, the focal three-dimensional spatial filter other set up the incision.Wrong with this device is also means less at the same time get the concentration gradient of X, Y, bias, is means less distributed measurement for rapid change, the goal of this creation is to surrender the deficiency of existing skills, supply a measurement object outside of the description of grating schlieren instrument device, the schlieren instrument device not only can get X, Y, two at the same time more surface deformation gradient information bias, and have compact layout, device briefly, easy to use features.After several years of research, the present method of schlieren apparatus technology is already very mature.So now our company mainly produce the schlieren instrument instrument company, if you have the need to contact us.Contact phone: 0816-6204826 |
