Method for calibrating laser particle analyzer
A technology of laser particle size analyzer and calibration method, which is applied in particle size analysis, scientific instruments, particle and sedimentation analysis, etc. It can solve the problems of high calibration cost of calibration method and expensive calibration samples, etc., so as to reduce calibration cost, low calibration cost and low price cheap effect
Inactive Publication Date: 2014-01-01
徐州协鑫太阳能材料有限公司
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Problems solved by technology
[0003] At present, the calibration samples of laser particle size analyzers produced by most companies are solid spherical or liquid calibration samples. These calibration samples are relatively expensive, so the calibration method of laser particle size analyzers using these calibration samples has a high calibration cost.
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[0024] In order to solve the problem of high calibration cost due to the use of solid spherical or liquid calibration samples in the current laser particle size analyzer calibration method, this embodiment provides a laser particle size analyzer calibration method. The calibration method of the laser particle size analyzer will be specifically described below in combination with specific examples.
[0025] Please refer to figure 1 The method for calibrating the laser particle size analyzer provided in this embodiment includes the following steps:
[0026] Step S110: Dispersing the quartz sand with a particle size ranging from 5 to 480 meshes in the sample window of the laser particle size analyzer. In this embodiment, the quartz sand is 325-mesh quartz sand, and the quartz sand is high-purity quartz sand. SiO in high purity quartz sand 2 and Fe 2 o 3 The components satisfy the following conditions respectively:
[0027] SiO 2 ≥99.5~99.9%; Fe 2 o 3 ≤0.001%.
[0028] I...
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The invention relates to a method for calibrating a laser particle analyzer. The method comprises the following steps: dispersing quartz sand with the particle size of 5-480 meshes in a sample window of the laser particle analyzer; starting the laser particle analyzer for emitting laser rays to the sample window; acquiring diffraction light signals generated by laser radiation on the quartz sand; converting the diffraction light signals into an electric signals; processing the electric signals to obtain a particle distribution result of the quartz sand; calibrating the laser particle analyzer according to the particle distribution result of the quartz sand. According to the method, a calibration sample used in a calibration process is the quartz sand with the particle size of 5-480 meshes; compared with a commonly used solid spherical or liquid calibration sample in the prior art, the quartz sand is very low in price, so that the calibration cost of the method is lower; in addition, application of the quartz sand as the calibration sample of the laser particle analyzer is provided, so that the calibration cost is effectively reduced.
Description
technical field [0001] The invention relates to the field of instrument calibration, in particular to a calibration method for a laser particle size analyzer. Background technique [0002] Laser particle size analyzers are mainly used to measure the particle size distribution of granular materials. For example, in the production process of ceramic products, it is necessary to use a laser particle size analyzer to test the ceramic slurry. The particle size of the ceramic slurry directly affects the performance of the final product, so it is necessary to ensure that the test data of the laser particle size analyzer is quite accurate. In order to ensure the high accuracy of the test data of the laser particle size analyzer, before using the laser particle size analyzer to test the particle size of the slurry, it is necessary to use a calibration sample to calibrate the laser particle size analyzer. [0003] At present, the calibration samples of laser particle size analyzers p...
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Inventor 赵晓东孙治国
Owner 徐州协鑫太阳能材料有限公司