Aerosol Sensor Test System

Test System for development, testing and calibration of active or passive aerosol sensors (PM sensors, PN sensors). Additionally the range of application ius extended to the development, testing and calibration of sensors for number or mass-related determination of the particle loading of aerosols (PMx-and PNx- sensors). The wide field of application is made possible on the one hand by the flexible sensor integration (active and passive sensors) and on the other hand by the realisation of a wide volume flow range. On customer request, the test system can be equipped with 2 measuring sections to cover volume flow rates between 0,8 ... 40 m³/h and 40 ... 450 m³/h.

Benefits

providing stable, defined aerosols at variable volume flow rates

generation of solid and/or droplet aerosols

adaption to customer-specific requirements possible

integration of Topas equipment and external devices

Applications

calibration and quality assurance of PM sensors during production

testing of PMx and PNx fine dust sensors during development

studies on the ageing behaviour of sensors

aerosol-technical fundamental resear

Principle

The main components of the test system are: a controlled blower to generate the main volume flow, a measuring duct divided into 3 sections, an aerosol generator (ATM 222) to generate the test aerosol and a laser aerosol spectrometer for the reference aerosol analysis. The blower sucks ambient air through the measuring duct via a pre-filter. Thereby exposing the air in the first duct section to a test aerosol. A distribution system ensures an optimal distribution of the test aerosol in the measuring duct.

Technical data

Accessories

customer-specific devices and sensors is possible on request

various sample holders for sensors, sampling probes, flat media and other components