Structure, principles, and calibration of introductory particle counters.

Particle counters that are active in measuring cleanliness in clean rooms and general environments, as well as in trend monitoring! We will introduce their principles, including a comparison with photometers.

This document introduces the structure, principle, and calibration of particle counters as an introductory guide. A "particle counter for airborne particles" is a device used to measure the number of suspended particles, particle size, and particle size distribution in clean rooms, indoors, and outdoors. It quantitatively aspirates sample air, introduces it into the laser irradiation area, and detects the scattered light from each irradiated particle. From the intensity of the light scattering response, the particle size is determined, and the number of particles in the sample air per unit time and unit volume, as well as the particle size distribution, are displayed. We have included a "conceptual diagram of particle sensor structure" and "dispersion performance of particle sensors," so please take a look at them via the PDF download. [Contents] ■ What is an airborne particle counter? ■ About handheld particle counters ■ Conceptual diagram of particle sensor structure ■ Setting and calibration of particle size threshold for particle counters ■ Dispersion performance of particle sensors *For more details, please refer to the PDF document or feel free to contact us.

Other measuring instruments