There are various classic methods for monitoring oil fume particles, such as filter membrane weighing method, micro oscillation balance method, beta attenuation method, light scattering method, crystal microbalance method, etc. Each method has its own advantages and disadvantages. Considering the application environment of portable or online monitoring equipment, light scattering method may be the most suitable method for monitoring oil fume particles. However, the pollution problem of viscous oil fume particles on the surface of optical components is a difficult problem, which has been troubling many sensor manufacturers and oil fume monitoring enterprises.

How can we solve the anti pollution problem of oil fume sensors?

The conventional non resistance protection scheme involves the measured gas passing directly through the measurement area and coming into direct contact with the core components.

The design of gas path optical path separation is to separate the measured gas from the optical components, shorten the length of the sensor gas path, reduce the residence time of the measured gas inside the oil fume sensor, and improve the anti pollution performance.