The microAeth® family includes the three new products within the MA series to complement the microAeth® AE51 personal exposure monitor for Black Carbon. This new series of instruments boasts many advanced features integrated into compact, lightweight form factors.
The new full spectrum MA series continuously collects aerosol particles on a filter and measures optical absorption at 5 wavelengths spanning UV - IR at up to a 1hz data rate. The spectrum measurement provides insight into the composition of light absorbing carbonaceous particles and helps to distinguish among the different optical signatures of various combustion sources such as diesel, biomass, and tobacco. The instruments support DualSpot® loading compensation method which corrects for the optical loading effect and provides additional information about aerosol optical properties.
These new devices use a miniature tape transport mechanism and easy-to-exchange filter cartridge for the automatic advance of filter tape material, enabling unattended operation from multiple weeks to a year, depending on the model and environmental factors. This feature in the MA series allows for continuous monitoring in mobile or stationary installations without human intervention or frequent site visits. The tape advance system has been designed to be extremely fast with very little sampling downtime.
The instruments feature internal lithium-ion batteries, low power operation, an internal pump with closed loop flow control, satellite time synchronization, onboard accelerometer, GPS, temperature, relative humidity, altimeter / pressure sensors, and years of data storage.
Wireless communication interfaces are under development to provide future network or mobile smart device integration. The USB data connection provides communication with the new cross-platform microAeth® Manager software available on macOS® and Windows®. A dedicated serial data port is provided for streaming data to data loggers or direct integration with other microcontroller host systems.