CN106290091A

CN106290091A - A kind of scaling method of laser particle mass concentration detector

Info

Publication number: CN106290091A
Application number: CN201510261282.5A
Authority: CN
Inventors: 王德华; 郭天祥
Original assignee: BEIJING HAIKE ZHIDONG SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: BEIJING HAIKE ZHIDONG SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2015-05-21
Filing date: 2015-05-21
Publication date: 2017-01-04

Abstract

The present invention relates to the scaling method of a kind of laser particle mass concentration detector, multiple PM2.5 detectors to be calibrated are positioned in airtight aligned spaces, smoke from cigarette is injected in airtight aligned spaces, flue dust is made to be evenly distributed with fan stirring, open depurator, it is characterized in that: the particle content in gas in airtight aligned spaces is sampled by laser particle counter, the particle content in gas in airtight aligned spaces is sampled by each detector to be calibrated；Laser particle counter sampled data and each detector sampled data to be calibrated are carried out linear fit, by each for linear fit parameter read-in PM2.5 detector to be calibrated.

Description

A kind of scaling method of laser particle mass concentration detector

Technical field

The present invention relates to the scaling method of a kind of laser particle mass concentration detector.

Background technology

The existing scaling method to PM2.5 detector, interference factor is more, and detection is consistent Property is poor.

Summary of the invention

The goal of the invention of the present invention is to provide a kind of laser particle mass concentration detector Scaling method, it is possible to be effectively improved detector demarcate detection concordance.

Realize the technical scheme of the object of the invention:

The scaling method of a kind of laser particle mass concentration detector, by multiple to be calibrated PM2.5 detector is positioned in airtight aligned spaces, injects perfume in airtight aligned spaces Cigarette smog, makes flue dust be evenly distributed with fan stirring, opens depurator, it is characterised in that: Particle content in gas in airtight aligned spaces is sampled by laser particle counter, Particle content in gas in airtight aligned spaces is adopted by each detector to be calibrated Sample；Laser particle counter sampled data and each detector sampled data to be calibrated are entered Line linearity matching, by each for linear fit parameter read-in PM2.5 detector to be calibrated.

After sample count 20 times, by laser particle counter sampled data and each to be calibrated Detector sampled data carry out linear fit.

Laser particle counter, each detector to be calibrated pass through RS485 bus respectively will Sampled data is sent to computer；Computer is by laser particle counter sampled data and respectively waits to mark Fixed detector sampled data carries out linear fit, and linear fit parameter is passed through RS485 bus writes each PM2.5 detector to be calibrated.

Laser particle counter, the sampling in every 2 minutes of each detector to be calibrated are once.

The PM2.5 detector that 200 to be calibrated is positioned in airtight aligned spaces.

The invention have the benefit that

Particle in gas in airtight aligned spaces is contained by laser particle counter of the present invention Amount is sampled, and each detector to be calibrated is to the particle in gas in airtight aligned spaces Content is sampled；By laser particle counter sampled data and each detector to be calibrated Sampled data carries out linear fit, by each for linear fit parameter read-in PM2.5 to be calibrated Detector；The present invention is by laser particle counter sampled data and each detector to be calibrated Sampled data carries out linear fit, is effectively improved detector and demarcates the concordance of detection.This After invention sample count 20 times, by laser particle counter sampled data and each to be calibrated Detector sampled data carry out linear fit, laser particle counter, each to be calibrated Detector sampling in every 2 minutes is once, it is possible to ensure to obtain more preferably sample detecting effect.

Accompanying drawing explanation

Fig. 1 is the device block diagram realizing the inventive method；

Fig. 2 is the inventive method flow chart.

Detailed description of the invention

As shown in Figure 1 and Figure 2, multiple PM2.5 detectors to be calibrated are positioned over close Closing in aligned spaces, during enforcement, airtight aligned spaces volume is 10.5ft.x 12ft.x 8ft= 1008ft³, it is ensured that good seal, PM2.5 detector quantity to be calibrated is 200. During detection, in airtight aligned spaces, inject smoke from cigarette, make flue dust divide with fan stirring Cloth is uniform, opens depurator, and TSI particle collector (laser particle counter) is to close The particle content closed in aligned spaces in gas is sampled, each detector pair to be calibrated In airtight aligned spaces, the particle content in gas is sampled；Laser particle counter, Sampled data is sent to computer by RS485 bus by each detector to be calibrated respectively； Computer is by laser particle counter sampled data and each detector sampled data to be calibrated Carry out linear fit, and linear fit parameter is each to be calibrated by the write of RS485 bus PM2.5 detector.After sample count 20 times, by laser particle counter hits Linear fit is carried out according to each detector sampled data to be calibrated.Laser particle counter Device, the sampling in every 2 minutes of each detector to be calibrated are once.

Claims

1. a scaling method for laser particle mass concentration detector, marks multiple waiting Fixed PM2.5 detector is positioned in airtight aligned spaces, notes in airtight aligned spaces Enter smoke from cigarette, make flue dust be evenly distributed with fan stirring, open depurator, its feature It is: the particle content in gas in airtight aligned spaces is carried out by laser particle counter Sampling, the particle content in gas in airtight aligned spaces is entered by each detector to be calibrated Row sampling；By laser particle counter sampled data and each detector hits to be calibrated According to carrying out linear fit, by each for linear fit parameter read-in PM2.5 detector to be calibrated.

The demarcation side of laser particle mass concentration detector the most according to claim 1 Method, it is characterised in that: after sample count 20 times, by laser particle counter hits Linear fit is carried out according to each detector sampled data to be calibrated.

The demarcation side of laser particle mass concentration detector the most according to claim 2 Method, it is characterised in that: laser particle counter, each detector to be calibrated pass through respectively Sampled data is sent to computer by RS485 bus；Laser particle counter is sampled by computer Data and each detector sampled data to be calibrated carry out linear fit, and by linear fit Parameter writes each PM2.5 detector to be calibrated by RS485 bus.

The demarcation side of laser particle mass concentration detector the most according to claim 3 Method, it is characterised in that: every 2 minutes of laser particle counter, each detector to be calibrated Sampling is once.

The demarcation side of laser particle mass concentration detector the most according to claim 4 Method, it is characterised in that: the PM2.5 detector that 200 are to be calibrated is positioned over airtight school In quasi-space.