Scanning Mobility Particle Sizer

This instrument is capable of measuring the size distribution of airborne submicron particles with accuracy and precision. The size range of the measurement from SMPS is 15 nm to 0.7 micron and the concentration range is up to 107 particles/cm3.

Hygroscopic Tandem Differential Mobility Analyser
(Model: TSI HTDMA)

The Hygroscopic Tandem Differential Mobility Analyser (HTDMA) is used to measure size resolved aerosol hygroscopic properties. It can operate in the RH range of 15% to 94% to measure increasing as well as decreasing RH growth factors.

Condensation Particle Counter
(Model: TSI CPC3776)

It is a general-purpose counter that detects airborne particles down to 4 nm. It provides highly accurate measurements over a wide concentration range from 0 to 107 particles/cm3.

Aerosol Generator
(Model: TOPAS ATM220)

It is a rugged, compact atomizer that generates particles in concentrations up to 108 particles/cm3 and offers an adjustable flow rate from 1.2 to 5.0 L/min.

Micro-Orifice Uniform Deposit Impactor
(Model:100 NR)

It is used to collect size-fractionated aerosol particles for gravimetric analyses. Aerodynamic size cuts for this impactor are 0.18, 0.32, 0.56, 1.0,1.8, 3.2, 5.6, 10 and 18 �m with sampling flow rate of 30 L/min.

Plasma Torch Aerosol Generator

It is a non- transferred type torch having a power of 40 kW. Argon gas is used as primary plasma gas for plasma generation and once the flame is stabilized, nitrogen gas is added to increase its enthalpy. Water cooling circuit consists of chiller of ~5-7 ton capacity to provide cooling for torch as well as power supply. It not only yields an intense and continuous aerosol stream but can also generate aerosols from a wide variety of materials such as metals, ceramics, and composites.

Powder feeder
(Model: MEC PF-3350)

It is used for feeding metal powders on plasma flame. This powder feeder can be used manually as well as automatically with the Programmable Logic Controller (PLC) system. A motor drive having digital RPM display governs the speed of rotating disk which is proportional to the feed rate of the powder.