Tuesday, April 19, 2016


Air Quality Monitoring

Air quality within the confines of an indoor environment is assuming importance both in terms of pollutants as well as a health benefit. A South East Asian country like Indonesia that has a huge archipelago is subject to wild forest fires and due to the sea breeze and air currents many urban areas have a number of pollutants. Particle counters are becoming standard office equipment in these parts of the world to determine particulate matter in the air. These devices called as particle counters can determine particle sizes ranging from 0.1 to 100 micrometers.

Working of a particle counter

The principle of light scattering is used. A test area is chosen and a beam of light is exposed to this area. The amount of light that is reflected or redirected by a particle determines the number of particles. The redirection or scattering of light is also used in monitoring the purity of water that is used in fabrication of semiconductors. Micro sized impurities are semiconductor's nemesis. Another method to count particles is by using light blocking principle. The alternative method to light blocking is using direct imaging. Particles are illuminated when exposed to pulsed beams of light within a given area.

Particle counters are the first line of defense for maintaining clean rooms. Hand held particle counters are a standard piece of equipment in many industries and office environment. Tridinamika is a leading supplier in Indonesia of particle counters. Some of the best brands in the world like Fluke, GE to name a few rely on Tridinamika’s distribution and technical skills.