Particle Deposition Monitoring
Get the grip on particle deposition measurements.
A measuring system counting sizing and imaging each particle on a detachable witness plate. By means of the exposure boxes various rooms can be monitored simultaneously. The passive system allows, likewise the original PFO system, monitoring over several months. A true innovation in measurement if you want to characterize the PFO. Unlike any other system capable of measuring fibers as well. The fast realtime functions provides even feedback during work in progress.
Partikelfalle – Witness plate
Is a Witness plate the same as a Partikelfalle? Yes it is. In the englisch language we talk about the plate showing the evidence of the deposition. In the german ...
What about particle size
The particle size in deposition requires the definition of the manufacturer of the measuring equipment. Unlike working with polysirene equivalent dust to calibrate an airborne counter, the deposition counting and sizing ...
facility cleaning and PDM
Cleaning of a cleanroom is expensive and requires extra people to work in the cleanroom. Therefore smart cleaning can reduce costs as well as the level of cleanliness reached in a ...
PDM system verification at site
Verification reports checking the calibration status thus extending the calibrated use at site contribute to a lower cost of ownership.
PDM equipment and exposure boxes with witness plates are available for rent in Europe
PDM equipment calibration
The development factory in Heerlen the Netherlands and the assembly plant provide full service including equipment calibration.
PDM equipment is used by various companies around the world to maintain the quality levels required during production.
UNIQUE CAPABILITIES OF THE PDM
What makes PDM unique
PDM equipment gathers deposition on a detachable glass witness plate. This allows passive data collection without a measurement device even at site. Long measurement series and parallel measurements are easy to carry out. This is the passive mode.
Furthermore measurements can be carried out with the witness plate on the measuring device allowing events to be catched direct after a short exposure time of the large detector. This is the realtime mode.
Lastly samples are non-destructive measured allowing to measure them again or to extract particles from the witness plate for electron microscope investigation.
The detector surface is nearly 50 square centimetre. This allows fast detection even al low deposition levels.
Large dynamic range
Even large deposition levels and particle sizes can be handled. Several thousands of particles with a size up to several milimeter as found in environmental dust can be measured.
Transparent measuring chain
All measurements carried out by the PDM can be verified by means of a microscope and a lot of work . All measurements are reproduceable as the original is not disturbed.