AE43 portable black carbon analyzer

Measurement principle:

By continuously collecting particles on the filter membrane to measure the attenuation of light, the concentration of black carbon aerosol is obtained based on its absorption characteristics and attenuation degree of transmitted light in the 370nm, 470nm, 520nm, 590nm, 660nm, 880nm, and 950nm wavelength bands. The concentration of black carbon aerosol is mainly measured at the 880nm wavelength.

Multi band analysis is used for analyzing black carbon sources (identifying biomass combustion sources, vehicle exhaust sources, etc.), studying aerosol optical absorption, radiative transfer, and atmospheric optical properties. High temporal resolution data is used for research on source and direct emission monitoring.

Technical advantages:

*Simultaneously using light sources with wavelengths of 370, 470, 520, 590, 660, 880, and 950 nm, the seven band data shows the fastest frequency to be 1Hz;

*The dual point technology (US Patent No. 8411272 and 9018583) avoids the phenomenon of membrane loading when sampling with a single membrane strip and provides more comprehensive information on aerosol chemical components;

*Real time source parsing;

*Calibrate the optical components of the instrument using NIST neutral density optical filters;

*Lightweight/portable black carbon analyzer (based on AE33 design);

* Dual point technology:Collect samples at different sampling rates using two parallel sampling points, analyze optical absorption, and obtain the true black carbon concentration that is not affected by the "overload effect" through mathematical calculations.

* Source parsing:The embedded source apportionment model decomposes black carbon concentration into fossil fuel and biomass combustion sources.

Technical parameters:

*Filter membrane: glass fiber membrane coated with polytetrafluoroethylene;

*Appearance and interface: 10.1-inch LED color touch screen (1280 × 800 pixels) with instrument status instructions;

*Data output: transmitted through 5 USB ports (1 for charging only), 6 RS23S, Ethernet, or high-definition multimedia interfaces (service only);

*Data storage: According to the set time, data is transferred to the built-in memory card, which can be remotely transferred or manually stored to an external USB storage device;

*Quality control and quality assurance: Use external calibrators for manual or automatic flow calibration, and perform noise and gas leakage detection through dynamic zero calibration. Additionally, calibrate the optical components of the instrument using standard traceable neutral density optical filters;

*Chart display: The instrument interface has a chart display function, which can display data charts of main parameters such as BC1, BC6, BB%, BCff, etc. within a certain period of time. In the case of installing meteorological sensors, it can also display wind speed and direction charts;

*Appearance size: 22 × 40 × 23cm, 19 inch standard rack, 5U, weight: 11.5kg;

*Power supply:

AC power: 100~230VAC, 50/60 Hz (adjustable);

DC power: 12V lithium battery (battery is optional);

*Power supply: 25W.

Application case:

*Research on the vertical profile of black carbon;

*Real time source analysis research;

*Research on black carbon emission testing;

*Identification of pollution sources;

*Research on health effects;

*Mobile navigation observation.