Physical characterization

The following instruments are available to analyze the physical characteristics of particulate matter:

TSI 3091 Fast Mobility Particle Spectrometer (FMPS)

The FMPS is capable of producing real-time particle size distribution measurements with one-second time resolution. The instrument discriminates between 5.6 – 560 nm particle sizes to provide particle number concentration and can categorize this value into one of 32 size bins. This particle size measurement is based on differential electrical mobility classification. The particle number concentration is determined by measuring the electrical current collected on a series of electrodes.

ManufacturerTSI Inc.
Location: WB facility (Field Measurement). MAPLE

TSI 3090 Engine Exhaust Particle Sizer (EEPS)

The Engine Exhaust Particle Sizer (EEPS) spectrometer measures the size distribution of engine-exhaust particle emissions in the range from 5.6 to 560 nm at 10 samples per second. The instrument can capture the dynamic behavior of particle emissions that occur at the various conditions. The EEPS and FMPS instruments operate on a similar principle.

Manufacturer: TSI Inc.
Location: WB facility (Field Measurement). MAPLE

TSI Scanning Mobility Particle Sizer (SMPS)

The SMPS measures aerosol concentration as a function of particle size using bipolar charge distribution and differential mobility analysis methods. This fast-scanning instrument allows for measurements to be taken at a 60-second time resolution. The SMPS Model 3080 also provides the option to vary the differential mobility analyzer (DMA) depending on target size measurements. A long DMA (model 3081) can be used to measure particles of a broad range from 10 to 1000 nm, or alternatively, a nano DMA (model 3085) can be used to more precisely classify particles from 2 to150 nm.

Manufacturer: TSI Inc.
Location: WB facility (Field Measurement). MAPLE
http://www.tsi.com/documents/3080.pdf

  • TSI 3081, 3085 DMA
  • TSI 3786 water based Condensation Particle Counter (CPC)
TSI 3321 Aerodynamic Particle Spectrometer (APS)
 

The Aerodynamic Particle Sizer Spectrometer provides high-resolution, real-time measurements of aerosols ranging in size from 0.5 to 20 µm. The instrument relies on time-of-flight measurements, which account for variations in aerosol shape, and are unaffected by the index of refraction or Mie scattering. The Aerodynamic Particle Sizer Spectrometer also simultaneously measures the light-scattering of aerosols, which can be utilized when studying aerosol composition.

Manufacturer: TSI Inc.
Location: WB Facility (Field Measurement)
Image Available: Yes
http://www.tsi.com/documents/3321.pdf

Thermo TEOM with 8500 FILTER DYNAMICS MEASUREMENT SYSTEM (TEOM-FDMS)

The Series 8500 Filter Dynamics Measurement System (FDMS) incorporates the 1400 Tapered Element Oscillating Microbalance (TEOM) to measure PM2.5 mass concentrations continuously. The instrument calculates the mass concentration based on the slope of the frequency that is measured during each base/reference measurement period for six minutes. Base mass concentration (Base MC) is PM concentration of the particle-laden sample stream at 30° C, while Reference mass concentration (Ref MC) is obtained from the particle-free sample stream, after passing through the purge filter. Mass concentration is calculated by subtracting the Ref MC from the Base MC. The FDMS accounts for volatile PM that may not be detected by earlier TEOM models and minimizes the positive artifact that results from the absorption of gases.

Manufacturer: Thermo
Location: WB facility (Field Measurement)

Thermo 5030 Synchronized Hybrid Ambient Real-time Particulate Monitor (SHARP)

The Model 5030 Synchronized Hybrid Ambient Real-time Particulate (SHARP) Monitor is a hybrid nephelometric/radiometric PM2.5 mass monitor. The SHARP monitor incorporates a high sensitivity light scattering photometer. The SHARP monitor incorporates continuous mass calibration of the nephelometric signal that is continuously referenced to the measurements of beta attenuation. The intelligent moisture reduction system of the SHARP is used to maintain the relative humidity of the air passing through the beta attenuation filter tape and minimize the loss of semi-volatiles from the collected sample.

Manufacturer: Thermo
Location: WB Facility (Field Measurement)

P-Trak Ultra fine Particle Counter
The P-Trak is a portable instrument used to detect and measure the real-time number concentration (particles/cm3) of ultrafine particles (UFP) with diameters below 0.1 μm. This instrument is equipped with a data logger, and is particularly useful for determining indoor sources of UFP.

Manufacturer: TSI Inc.
Location: WB facility (Field Measurement)

DUSTTRACK Aerosol Monitor
The DUSTTRAK Aerosol Monitor is a portable instrument used to provide-real time measurements of PM10PM­2.5 or PM1.0. The DUSTTRAK utilizes a battery-operated laser photometer to determine aerosol concentration (mg/m3), which can be stored using the instrument’s data logging option.

Manufacturer: TSI Inc.
Location: WB Facility (Field Measurement)
http://www.tsi.com/documents/2980077RevCWeb.pdf

Tapered Element Oscillating Microbalance (TEOM) Series 1400a Ambient Particulate Monitor

The TEOM uses a filter-based system to continuously monitor the concentration of particulate matter. An inertial balance correlates changes in the oscillating frequency of the tapered element to aerosol concentration. The instrument is capable of measuring PM10, PM­2.5, PM1.0, or Total Suspended Particles (TSP).

Manufacturer: Thermo Electron Corp.
Location: GAGE
http://www.chem-eng.utoronto.ca/~aerosols/lams.htm