How does optical particle counter work?

How does optical particle counter work?

Optical particle counters are capable of monitoring particle in the air and liquids. Using a high energy light source, particles are measured and counted when the light source is blocked out. This specific monitoring device uses the principle of light scattering to measure particle in the air.

What does an aerosol particle counter measure?

Aerosol particle counters are used to determine the air quality by counting and sizing the number of particles in the air. This information is useful in determining the quantity of particles inside a building or in the ambient air. It also is useful in understanding the cleanliness level in a controlled environment.

How do airborne particle counters work?

An aerosol particle counter works on the principal of either light scattering or light blocking. An aerosol stream is drawn through a chamber with a light source (either Laser Based Light or White Light). When a particle is illuminated by this light beam, it is redirected or absorbed.

How are particle counters calibrated?

Following the reference particle counter method (also known as count match calibration) the particle counter is calibrated using reference particles and is compared to a calibrated reference unit. This method calibrates the accuracy of the particle counter.

How does a laser particle sensor work?

How it works. When a laser beam strikes a particle, the beam’s light is scattered. Larger particles scatter the light more than smaller particles. A sensor detects the intensity and angle of the beam after passing through the particulate-laden air.

How is the smallest particle count?

An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton’s Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.