![]() ![]() Priority Applications (1) Application Number ![]() CN 03128257 Settling type laser reflection image point granularity measuring method Laser method is to be light source with laser, the minor diameter laser beam irradiation is arrived in solid-liquid (or solid and gas) mixed system of tested particle composition, by to the diffraction of particle or the measurement of scattering angle, utilize MieShi theory or Fraunhoffer Theoretical Calculation particle grain size, and count and get size and the relative populations that all measure particles, promptly obtain grain graininess and distribution value.Limit by principle and technical conditions, existing laser particle size is surveyed preparation method, its diffraction or scattering optic angle can only take from laser penetration face (with laser entrance face dorsad), therefore, laser method is limited to the granulometry amount of low solid concentration, and the thickness of measuring vessel is restricted, otherwise the diffraction of particle or scattering angle, with being subjected to signal to accept the refraction and the reflection of other particle on the light path, cause diffraction or scattering angle distortion.This also makes laser method under present technical conditions, is difficult to use in the on-line testing of particle.What laser method recorded is the equal-volume particle diameter, and its distribution benchmark is a volume reference number percent Measuring Time is short.ģ, decanter type laser-bounce picture point granulometry method according to claim 2 is characterized in that control, video and the Flame Image Process of whole measuring process, and the calculating of granularity and distribution value, revises and finish by computing machine. Light transmission settling methods and X-ray see through settling methods, both all change with the light intensity of the tested particle suspension liquid of light transmission, obtain the suspension concentration change value on definite settling height and the time point, draw the percentage by weight of particle thus, the corresponding grain diameter of percentage by weight is then obtained by Stokes settling velocity law therewith, promptly obtains grain graininess and distribution value.Light transmission settling methods and X-ray see through settling methods, and both differences only are light source: the former is a white light, and the latter is the X-ray of extension naturally of white light Both have common measuring principle: measure suspension concentration and change the relative content that obtains particle, obtain grain diameter by Stokes settling velocity law, record grain graininess and distribution value thus Both have common grain diameter characteristic and distribution benchmark: Stokes particle diameter, weight basis number percent Both Measuring Time are longer. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT Priority to CN 03128257 priority Critical patent/CN1202412C/en Publication of CN1475789A publication Critical patent/CN1475789A/en Application granted granted Critical Publication of CN1202412C publication Critical patent/CN1202412C/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Original Assignee Wuhan University of Technology WUT Priority date (The priority date is an assumption and is not a legal conclusion. Wuhan University of Science and Engineering WUSE Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor 张联盟 叶菁 李银祥 杨中民 沈强 王传彬 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CNA031282571A Other languages Chinese ( zh) Google Patents Settling type laser reflection image point granularity measuring methodĭownload PDF Info Publication number CN1475789A CN1475789A CNA031282571A CN03128257A CN1475789A CN 1475789 A CN1475789 A CN 1475789A CN A031282571 A CNA031282571 A CN A031282571A CN 03128257 A CN03128257 A CN 03128257A CN 1475789 A CN1475789 A CN 1475789A Authority CN China Prior art keywords particle laser picture point settling stokes Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents CN1475789A - Settling type laser reflection image point granularity measuring method CN1475789A - Settling type laser reflection image point granularity measuring method ![]()
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