bioMerieux DENSIMAT, User Manual, Page: 45 / 50

User's Manual DENSIMAT 11-1
1 1 G l o s s a r y
LED 950
NM
Light Emitting Diode 950nm.
Light source emitting on the 950 nm wavelength.
MCFARLAND
Scale for measurement of bacterial density.
NEPHELOMETRY Measurement of the intensity of scattered light (S) at 30°, directly
proportional to the bacterial growth.
OPTICAL DENSITY
(OD)
The property of a substance to reduce the intensity of a beam of light that
goes through it.
PHOTOSENSOR Sensor enabling a quantity of light received to be transformed into electrical
current.
STRIPS Set of standardised, miniaturised tests on a plastic support.
TURBIDIMETRY Measurement of the intensity of transmitted light (T) which is inversely
proportional to the bacterial growth.