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Functional Principle, Technical Data
colorCONTROL MFA-7/-14/-21/-28
2.
Functional Principle, Technical Data
2.1
Short Description
The colorCONTROL MFA-XX is an optical controller for precise color recognition for industrial measurement tasks, built
into a sturdy aluminum housing. The controller is characterized by parallel measurement of multiple measuring channels
(up to 28 in an MFA-28), high color accuracy, data output via interfaces, and intuitive operation. Up to 28 MFS sensors
with optical fibers can be connected to a colorCONTROL MFA-28 controller. These sensors can be adapted to different
measuring tasks, for example LED testing (binning), primary light source testing, and display testing.
2.2
Measuring Principle
The measuring system for relative color measurement/testing consists of an evaluation unit – the MFA-XX controller
– and a MFS sensor. The sensor is connected to the controller via an optical fiber with an integrated plastic fiber.
The
specimen (lighting/LED) emits electromagnetic radiation with the range of 400-700 nm (light). The light emitted from the
test subject is received via an MFS sensor at a working distance of approx. 5 mm. The light is transmitted via the optical
fiber of the MFS sensor to a perceptive true-color sensor (XYZ) of the MFA controller.
The three wavelength frequency ranges, i.e.
- X = long wave,
- Y = medium wave and
- Z = short wave frequency ranges
from the specimen are used to determine the light emitted thereby and transformed into a selected color space. These
color values are calculated according to the procedure described in DIN 5033. The transformed values (color) can be
queried by the controller or continuously transmitted via the interface.
2.3
Functions
- Detecting electromagnetic radiation of between 400 ... 700 nm and converting it into color values
- Outputting the measurement data via RS232, RS422 or USB
2.4
Display Element
The status LED of the controller indicates the following:
- Green: error-free operation
- Orange: error
- Blue:
overflow
