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Method for improving measurement result accuracy of laser particle counter

A particle counter and measurement result technology, applied in measurement devices, particle size analysis, individual particle analysis, etc., can solve problems such as coefficient distortion, laser intensity attenuation, laser emitter aging, etc., to correct measurement errors, improve service life, improve The effect of the measurement results

Inactive Publication Date: 2016-10-12
SHENZHEN QINGHETAO TECH CO LTD
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Problems solved by technology

However, during the use of the laser particle counter after leaving the factory, its laser emitter will gradually age
Aging causes the intensity of the emitted laser to attenuate, which will gradually distort the coefficients calibrated before leaving the factory, and the accuracy of the laser particle counter measurement results will also decrease

Method used

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  • Method for improving measurement result accuracy of laser particle counter
  • Method for improving measurement result accuracy of laser particle counter
  • Method for improving measurement result accuracy of laser particle counter

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] see Figure 4 , Figure 4 It is a flow chart of the method for improving the accuracy of the measurement result of the laser particle counter provided by the present invention.

[0033] An embodiment of the present invention provides a method for improving the accuracy of a laser particle counter measurement result. The laser particle counter includes a plurality of laser emitters, and the plurality of laser emitters work in series, including the following steps:

[0034] Calibrate the calibration coefficient of each laser transmitter when it works alone before leaving the factory;

[003...

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Abstract

The invention provides a method for improving the measurement result accuracy of a laser particle counter. The laser particle counter comprises a plurality of laser transmitters. The method comprises the following steps: when the performance degradation of a main laser transmitter causes a calibration coefficient to distort, enabling a standby laser transmitter to work to carry out secondary calibration on the calibration coefficient of the main laser transmitter; and after the performance of the main laser transmitter degrades to a certain degree, using the standby laser transmitter, and starting the standby laser transmitter to serve as a new main laser transmitter. The method has the beneficial effects that a measurement error of the laser particle counter due to the performance degradation of the laser transmitter in a use process is corrected so as to improve the measurement result of the laser particle counter, and meanwhile, the service life of the laser particle counter is prolonged.

Description

technical field [0001] The invention relates to the technical field of the measurement field of laser particle counters, in particular to a method for improving the accuracy of measurement results of laser particle counters. Background technique [0002] The laser particle counter uses the principle of light scattering. A beam of laser light is scattered by particles and then changes direction and is received by the laser receiver. The laser receiver converts the received scattered light signal into an electrical signal, and the electrical signal is processed by the processor inside the laser particle counter after being processed by the amplifier circuit and the filter circuit. [0003] together with reference Figure 1 ~ Figure 3 , according to the correlation principle, the scattered light signal is proportional to the square of the particle diameter; similarly, the output and input of the laser receiver during photoelectric conversion also maintain a proportional relatio...

Claims

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Application Information

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IPC IPC(8): G01N15/02G01N15/10
CPCG01N15/0211G01N15/1012G01N2015/0238
Inventor 胥海洲孙波黄晓兴
Owner SHENZHEN QINGHETAO TECH CO LTD
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