QT-1 Лазерный анализатор размера частиц

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Принцип работы

Лазерный анализатор размеров частиц QT-1 использует теорию рассеяния Ми для измерения размеров частиц, учитывая показатель преломления частиц и дисперсионной среды. Согласно теории Ми, частица рассеивает свет под углом, определяемым размером этой частицы. Набор частиц создаст картину рассеянного света, определяемую интенсивностью и углом, которая может быть преобразована в результат распределения размеров частиц. Данные по частицам могут быть рассчитаны двумя способами: безусловная фитирующая инверсия и условная фитирующая инверсия. Условная фитирующая инверсия является относительно простым способом. Распределение размеров частиц восстанавливается с предположением, что частицы имеют определенный закон распределения. Однако между предположением и реальностью существует отклонение. Поэтому результаты испытаний с помощью условной фитирующей инверсии не могут точно отразить реальное распределение размеров частиц. В случае безусловной фитирующей инверсии до испытания не предполагается никакого закона распределения частиц, и размерное распределение частиц непосредственно и точно рассчитывается по интенсивности света. Таким образом, прибор требует рационального дизайна датчика и разбиения на размерные классы для обеспечения высокой производительности. Распределение размеров частиц может быть точно рассчитано с помощью лазерного анализатора размеров частиц QT-1, который использует оптимизированный неравномерный трехмерный секторный массив датчиков и рациональное разбиение на размерные классы.

Характеристики

• Диапазон измерения: 0,05 ~ 800 мкм

• Точность:<±1% (Chinese National Standard D50)

• Repeatability error：<±1 % (Chinese National Standard D50)

• Power supply：220±10V AC, 50Hz, 200W

• Dimensions：1000 x 330 x 320 mm

• Weight：38 KG

Technical features

Stable performance: The stability of the tested data is ensured by the stable optical signals from the system. The QT-1 Laser particle size analyzer uses He-Ne gas laser light source with 0.6328 micron wavelength. It can offer stable laser source signals, and serves more than 15000 hours.

Reliable data: The reliability of the tested data requires stable light signals from the system. The real results require high dispersion effect of the tested samples as well as even distribution of the tested dispersed liquid.

Sensors: Unique design of the photoelectric sensor, high sensitivity, with 1 master sensor and several auxiliary sensors, non-uniform cross 3D  fan-shaped  sensor array, 105 degree of the maximum testing angle, overall test of the signals.
Light path: With the design of 1 measuring range, unique gathering light path , less Fourier lens, wide measuring range, high resolution, free adjustment of light path.

Sample dispersion: The ultrasound system of QT-1 Laser Particle Analyzer can thoroughly disperses the test samples. Super power ultrasound system (100 W) is integrated with the host machine. The ultrasound time is automatically controlled. The touch buttons are continuously adjustable. The time setting is displayed. The ultrasound time of 0 - 9min 50 seconds is adjustable. The ultrasound time is adjusted according to the sample dispersion. The ultrasound dispersion and sample testing may be done at the same time due to the good shielding. Even super aggregated particles can be dispersed sufficiently and real particle size distribution can be obtained.

Sample dispersion pool (400 ml) is integrated with the host machine, made of stainless steel, with unique design, rounded, circulating discharge, easy to clean.

QT-1 uses wet dispersion, distilled water, purified water and ethyl alcohol can be used as dispersing medium.

Homogenized dispersion: The homogeneity of dispersion can provide a stable optical signal. QT-1 uses continuous and adjustable stirring and circulation to ensure the homogeneity of dispersion.

Mixing system: choose the appropriate mixing speed according to the characteristics of the sample, to prevent particle sedimentation to dispersion mixing, stirring speed is in automatic operation and touch-button is continuously adjustable at the stirring speed from 0 to 3000 r/minutes, speed setting is displayed, open the ultrasonic system during testing process can avoid measurement errors caused by bubbles emerging from fast stirring.

Circulatory system: According to the characteristics of the sample, choose appropriate in circulation pump speed to prevent particle precipitation in the circulation line. Circulation pump speed is in automatic operation, touch-button is continuously adjustable at the circulation pump speed from 0 to 5000 r/min, pump speed setting is displayed, open the ultrasonic system during testing process can avoid measurement errors caused by bubbles emerging from fast stirring and can prevent particles from becoming aggregates.

Powerful analysis software: PADMAS (Particle Diameter Measure & Analysis System) is a powerful software that can process statistical analysis, comparison and mode conversion. It has various formats, such as differential distribution, cumulative distribution, standard classification, R-R distribution, user-defined classification, mesh-based classification and quantitative distribution. The default in the range of 0.02 -2000 micron is 130 classes. Within the measurement range, 1-130 classes can be defined by users. In the test report, there are particle size distribution chart, particle size data, and some characteristic parameters such as D10, D50, D90, the average size and specific surface. Four parameters need to be defined by users. Weight specific area and volume specific area can be mutually converted. Particle size data can be exported to Excel. It supports test report printing in Chinese or English. The page header and footer may be modified. The printing page may be previewed. Particle distribution diagrams and size data charts may be saved in picture or PDF format, which can be further used in Word. More functions may be added according to users’ requirement.

User-friendly operation: The operation is standard, quantified and simple, and it takes a short time to master the operation. The data can be tested within 1 minute.

High viewability: The test software is user-friendly. The test processes are readable and instantly refreshable. The operators can observe the instrument’s situation and the fluctuation of the test data at any time and analyze the validity and reliability of the test data. On the intelligent touch panel, there are operating keys for circulation, ultrasonic, stirring and discharge.  Standard, quantified and simple operation makes the testing time shorter and lower requirement for the operator.

Origin: China

Channel Technology Group Limited

Tel:+86-10-62111044

Fax:+86-10-62114847

Web:/en/

Email:repair@qudao.com.cn