agrophysics - Instytut Agrofizyki im. Bohdana Dobrzańskiego PAN w ...

Lovibond CAM-System 500 imaging colorimeter, manufacturer: Tintometer Ltd (2008)
Source: http://www.globalspec.com
• Records objects image at a resolution of 752 x 582 pixels and saves each pixel in as RGB components.
• Measures sizes and shapes of objects.
• The time domain screen enables capturing an image sequence at defined intervals and as on-line playback.
• Assessment of heterogeneous or variable colour of the objects which cannot be measured with conventional
spectrometers. Allows recording the entire or selected areas FOV image of the sample.
• Sample size: 240 x 280 x 120 mm.
• Measurement time: 1-2 s.
• The contact-free system ensures that the consistency and texture of
Specimen 1 to 10
objects do not affect the measurement results.
Examples of use:
• Examination, analysis and assessment of colours of any material.
• Quality testing of various products, including fruits and vegetables.
Quantitative assessment of colour and appearance – a quality control
system which enables the user to decide if tested products meet the
required criteria of colour and appearance.
Compressive load (N)
80
70
60
50
40
30
20
10
0
-10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
Compressive extension (mm)
Specimen #
1
2
3
4
5
6
7
8
9
10
Supercolor Braive 6016 colorimeter, manufacturer: Braive Instruments (1995)
• Instrumental measurement of colours in the visible range of reflected light using the L*a*b* colour
system by CIE in laboratory or field tests.
• Measurement field diameter: 11 mm.
Examples of use:
# Std Delta
L* 89.86 -1.05
a* 18.89 -0.37
b* 26.35 1.26
DE
1.68
0
SAMPLE 10 /D65
STANDARD
• Examination of the impact of agricultural technology, harvest, transport, storage and shelf-live of
fruits and vegetables on behavior of optical properties of product surface.
• Qualitative assessment and classification of fresh and processed fruits and vegetables.
RS 232
Laboratory of Assessment of Grain and Oil Materials Quality
Department of Physical Properties of Plant Materials
Laboratory Supervisor: Agnieszka Nawrocka, PhD
Tel. +48 81 744 50 61
Fax +48 81 744 50 67
e-mail: a.nawrocka@ipan.lublin.pl
http://ojszo.ipan.lublin.pl
http://www.ipan.lublin.pl
The laboratory studies physical and chemical properties of seeds and stalks of cultivated plants, particularly new rape
varieties and hybrids for the lipid industry and generation of oils as alternative energy sources. Mechanical properties of plants
determining their hardness and damage resistance, as well as the relation between plants and moisture of materials are studied,
as well. X-ray imaging is used to detect internal endosperm damage, which contribute to quantitative losses and lowered
processing value of grain, and the presence of pests feeding inside kernels. Determination of the stages of pest development in
X-ray images enables to trace the history of grain transport – from producers to stores. The laboratory studies physical properties
of wet gluten: the content of bound and free water, which are sensitive tools for monitoring physiological and technological
effects on flour processing, and the expansion capability of gluten membranes as a function of temperature, which enables the
determination of parameters for forming good quality pastry crumbs.
Research profile:
24
• Studies of physical properties of plant raw materials (plants, seeds, fruits and vegetables) and physical processes during
harvest, transport, storage and processing of crops.
• Development of methods for determination of physical properties of plant materials.