MCT-MultiPlex Features Three Technologies Near Infrared (NIR) based - - PowerPoint PPT Presentation

MCT-MultiPlex Features Three Technologies

• Near Infrared (NIR) based on MCT-360 NIR Transmitter; moisture, oil/fat,

flavorings

• Visible (VIS) white light source color meter (200-800 nm); CIE L*, a*, b*; Hunter

L, a, b; Agtron RGB

• Laser Height Measurement that can be used for thickness measurement in

certain applications

Near Infrared (NIR) Technology Built On MCT-360 Platform

• Near Infrared (NIR) region (1200 – 2400 nm).
• The NIR is above the UV (sunburn) and Visible (What you see) colors of light, and

below the IR (temperature) region of light.

• Selected narrow band pass filters that allow specific wavelengths to be utilized for the

measurement.

• Moisture absorbs light at 1420 and 1940 nm and one or both of these wavelengths are

used as the “measure wavelength”.

• Hydrocarbons (oil/fat) absorb light at 1720 and 2340 nm and one or both of these

wavelengths are used as the “measure wavelength”.

• One or two non-absorbing wavelengths are chosen as “reference wavelenths”.
• An algorithm (math equation) compares the values and provides an accurate and

linear measurement of moisture or fat/oil.

• Color Measurements try to replicate what the human eye will see
• Eliminate the variation between individual perceptions with a standard comparative

scale

Three main color scales are employed in the industries we serve:

• CIE L*a*b*
• Hunter L,a,b
• Agtron

The most important determining factor in scale selection is consistency in using the same scale, and historic data in a specific color scale. CIE L*a*b* and Hunter L,a,b are both based on the established CIE L*a*b* scale. This scale uses three parameters to represent human eye color perception and plots it into a tristimulus three dimensional format.

• The “L*” axis representing Light to Dark values
• The “a*” axis representing Red to Green values
• The ”b*” axis representing Yellow to Blue values

What Is Color & How Do We Measure It?

What Is Color & How Do We Measure It?

• The CIE L*a*b* tries to correct or match the non-linearity present in the human

eye by using the “cube root” of the XYZ scale

• The Hunter L,a,b makes it calculations based on the “square root” values of the

XYZ scale.

• Both scales work as long as they are used consistently. Allegedly the Hunter has

greater color discrimination in the yellow zone on low values and the CIE has greater color discrimination on darker colors.

• The Agtron scale is based on red-yellow-green-blue (RYGB) reflectance to provide

a numeric score for each of these color bands in the visible spectrum. There are several other color scales too.

• The MCT-MultiPlex Color Meter is a white light source Color Meter with flexible

software to meet your color measurement needs.

Height Measurement

• Dual laser height laser measurement, required for color measurement height

compensation

• Accurate to better than 1 mm
• Can be used to measure product thickness in certain applications

Optional IR Thermal Imaging or Product Temperature Measurement

• IR temperature or thermal imaging camera for additional measurements
• Mounted external to Multi-Plex housing
• Measurement integrated into system

MCT-MultiPlex™ Process Analyzer Transmitter and Operator Interface

MCT-MultiPlex™ Transmitter

MCT-MultiPlex™ Operator Interface Display

MCT-MultiPlex™ Graphical Trend Display

MCT-MultiPlex™ Histogram & Defect Grade Display

™MCT-MultiPlex Transmitter On Crushed Biscuits

Maillard Reaction

• The Maillard reaction describes a non-enzymatic chemical reaction between amino

acids (proteins) and reducing sugars that accelerates with heat and produces a browning effect on many processed foods including fried and baked products

• The Maillard reaction describes the impact on odor, flavor, and appearance due to the

browning reaction

• The a* value (Red to Green) offers a valuable tool in monitoring the browness indicative
• f the Maillard reaction

MCT-MultiPlex™ Provides

• Digital display of values – Moisture, Color, Oil, etc.
• Analog outputs for control
• Alarms & alerts for enunciators
• Digital interface for data archiving
• Easy-to-operate software
• Option to separate color and moisture transmitters for different locations

into one Operator Interface/Display Panel

MCT-MultiPlex

Moisture, Color, Oil/Fat, Flavorings, Height Options for Thickness, Product Temperature, & Thermal Imaging