CHAPTER 1
Introduction
1-1
The Model 3022A Condensation Particle Counter, shown in
Figure 1-1, measures the number concentration of submicrometer
airborne particles larger than 0.01 micrometer in diameter.
Product Description
The particles are detected and counted by a simple optical detector
after a supersaturated vapor condenses onto the particles, causing
them to grow into larger droplets. The range of detection is wide,
from less than .007 particles/cm
3
to 9.99 × 10
6
particles/cm
3
.
Figure 1-1
TSI Model 3022A Condensation Particle Counter
The Model 3022A offers a laser-diode light source, an internal
microprocessor control, the capability of full computer interfacing,
a long-life pump, volumetric flow control, and a front panel display
of both the concentration and instrument status.
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