Nano scale particle size measuring method and device with scattered dynamic low-strength laser
A technology of dynamic light scattering and nano-particles, applied in the field of measurement, can solve the problems of unsuitable industrial site detection, resource waste, and bulky water cooling system, and achieve the effect of maintaining naturalness, low overall cost, and small device volume
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[0034] figure 1 A schematic diagram of the device showing the method for measuring the particle size of nanoparticles by using low-intensity laser dynamic light scattering according to the present invention. The device is mainly composed of a laser 1, a polarizer 2, a focusing lens 3, a double-layer refractive index sample matching pool 4, a single-mode fiber 5, a photon counting module 6, an autocorrelator 7, a computer 8, and a total reflection prism 9. The laser 1 provides coherent light; the polarizer 2 converts the outgoing laser light into linearly polarized light; the focusing lens 3 focuses the polarized light into the double-layer refractive index sample matching cell 4; the double-layer refractive index sample matching cell 4 and the photon counting module 5 It is connected through a single-mode gradient-index optical fiber 5; the photon counting module 6, the autocorrelator 7, and the computer 8 are sequentially connected with signals. A total reflection prism 9 is...
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