Advanced Scientific Devices

The instruments employed by Art-Test are the result of a thorough and complex study carried out by experts with wide experience in this field, with the objective of optimizing both performance and portability.

This means that they can travel and be where you want them to be!

Some of the appliances Art-Test employs have been designed and realized in-house, thanks to the know-how and expertise acquired by its professionals and by our partner companies, specialized in scientific instruments, as well as to the cooperation with research institutes.

Upon request we develop and commercialize dedicated instruments, ask us for a quotation!

It is also possible to rent out some of our devices!

This is a partial list of the unique range of scientific instruments we use for our investigations:

  • Our device consists of a motorized planar scanner equipped with an InGaAs sensor. It can acquire high resolution digital reflectographies with high tonal dynamics. It features a light modular structure, with respect to the wide surface that can be acquired with one single scan (up to 6.5 sq.mt.).
    The performances of this system are much higher compared to a Vidicon or CCD camera and enable a better readability of the acquired images. The resulting images do not require any post-processing since they do not suffer from any geometric distortion, uneven illumination effects, vignetting, etc.

    VisIR Single Point Scanner for Digital IR Reflectography

    Technical data

    - IR sensor: InGaAs Photodiode, spectral sensitivity 0.8 – 1.7 micron
    – Lighting: 2 halogen lamps 10 W
    – Spatial Resolution of Scanned Area 101,6 dpi
    – Reflectogram gray levels: 12 bit/pixel resolution
    – Overall amplitude XYZ Area Analysis in a single acquisition: 1.8 x 3.8 m
    – Acquisition speed: about 1h30’/m2
    – Modular and transportable device, easy to assemble
    – Size: depending on the acquisition area chosen (depth 70 cm)
    – Light structure, easy to transport
    – External stabilized power supply 24 V
    – Computer controlled
    – Proprietary software

    Paris – C2RMF
    (Palais du Louvre)
     

     

    Pisa – Museo Nazionale
    di San Matteo
  • Multispectral images can be used for accurate colorimetry and color image reproduction because the color-matching functions of the human visual system are described more precisely by combining the sensitivity functions of a multispectral system then by using RGB camera sensitivity.
    The multispectral data achieved can be also used to estimate surface spectral reflectance, which is a inherent physical property of the artwork surface. In this way we infer information about the nature and the chemical composition of the materials on them, and with this system this information can be acquired at the same time on the whole surface of the object.

    A cooled CCD scientific camera can be used together with a set of interferential filters to study the artwork in the visible and near IR range.

    - C4 CCD camera – characterized by high sensitivity, fast image downloading, reduced weight and dimensions. Scientific CCD sensors with high quantum efficiency. Proprietary technology able to use the sensor to the maximum of this intrinsic performances. Some of the key features:

    • 16-bit electronics at very low noise (std<1)
    • High read-out speed 4 Mpix/s
    • CCD soft hyperdrive, advanced technique of sensor management which can exploit at the maximum its intrinsic characteristics
    • High sensor temperature stabilization (±0.1 °C) to provide a high reproducibility of sensor’s performances

    Exellent performances at different spectral bands thanks to the use of an integrated internal 8-position filter-wheel for filters of 25 mm diameter.

    Filters mounted on filter-wheel: 450 nm, 550 nm, 600nm, 750 nm,  850nm, 950 nm, 1050nm

    Integrated peripherals that allow the realization of complex imaging techniques, all available on the AUX user port

    • 16-bit bidirectional parallel port
    • Signal for the shutter total
    • 2×32-bit pulse generators
    • 1×32-bit delay generator
    • IN/OUT Trigger
    • 4×12 bit A/D channels

    USB interface

    Proprietary Software

    - C3 CCD camera

    • - Scientific Cooled CCD camera
    • Image sensor:KAF 6303e (Kodak), UV enhanced, high quantum efficiency till 1100 nm, front side illuminated transparent gate true two phase technology sensor 3072×2048 pixels, 9x9micron.
    • Full Well Capacity: 100 ke
    • Dark Current: 0.5 e-/pixelsec
    • Quantum Efficency a 450,550,650 nm: 40, 55, 64
    • Fill Factor: 100%
    • 50 mm objective (Rikenon, Ricoh 50 mm F 1,7)

    PCMCIA interface

    - 16 2” interferential filters (LOT oriel). spaced at 50nm from 350 nm to 1100 nm, typical peak transmittance of 80-90% and FWHM of 40-50 nm

    - Software Art-Test

    Paris – C2RMF (Palais du Louvre) Roma – Chiesa del Gesù
  • Tiziano scanner art-testVis-Ir scanner Art-Test Firenze1

     

     

    -capacità di sollevamento 5KG

    -piastra multiforo per alloggiare diversi tipi di strumento
    -passo di 0,25 mm sia in orizzontale che verticale
    -movimentazione pre-impostabile

    -Strumento modulare, composto da tre moduli separati, di facile assemblaggio

    -Ingombri: profondità totale 0,7 m circa (impronta a terra di 0,45 m), lunghezza di 2 m e altezza di 2,0 m)
    -Struttura leggera e di facile trasportabilità
    -Il livellamento dello strumento è agevolato da una sistema di appoggio stabile e versatile, in grado di assorbire asperità e dislivelli fino a 10 cm
    -Alimentazione a 24 V tramite alimentatori esterni stabilizzati

    -Gestione tramite laptop
    -Software proprietario di movimentazione ed acquisizione

  • Digitized B/W acquisition performed with a Vidicon tube, with sensitivity till 2200 nm.

    Telecamera dotata di rivelatore al solfuro di piombo (PbS): è il primo strumento utilizzato tradizionalmente per riflettografia in sostituzione della pellicola fotografica ha una sensibilità spettrale del sensore estesa fino a circa 2.2 µm.
    La visualizzazione delle immagini, un tempo direttamente a monitor, con la loro registrazione ottenuta fotografando quest’ultimo, attualmente è realizzabile in formato digitale grazie ad una scheda di acquisizione video. Un tempo largamente utilizzato, oggi, a causa della ridotta risoluzione spaziale (720×480 pixel), della scarsa dinamica tonale e della distorsione geometrica dovuta alle aberrazioni ottiche introdotte dagli obiettivi, a questo strumento vengono generalmente preferiti sistemi diversi. È comunque ancora utile per le indagini preliminari, per indagare stesure pittoriche particolarmente spesse o non trasparenti a lunghezze d’onda minori, e dove non sia possibile utilizzare strumentazione più ingombrante.

  • XRF_lapideo_s

  • Technical data

    - Thermal camera: 8- 14 micron spectral range.
    – Detector type: Focal Plane Array microbolometer 320×240 pixels, cooled.
    – Thermal sensibility range: -20 e 300°C.
    – Accuracy: 2° below 100°C and 2% above.
    – Resolution: 0,08°C.
    – Equipped with 22 mm objective. E.g. it allows 5.37 x 4,03 acquisition area at 10 m distance.

    termal camera “long wave” employed by Art-Test

  • Radar_2_s Radar_s

  • Digital Photocamera Sony F828

    Digital IR B/W acquisition performed with a commercial CCD camera, with nominal sensitivity till 1100 nm.

    Technical data

    Sensor type
    – 2/3″ type (8.8 x 6.6 mm) RGBE color filter array (for improved colour response)
    – 2.7 µm pixel pitch
    – Effective pixels 8.0 M

    Lens
    – Carl Zeiss T 28 28 – 200 mm equiv. (7x zoom)
    – F2.0 – F2.8.

  • Portable CCD microscope

    • Adjustable focus and magnification
    • Magnification up to 200x
    • Software switchable built-in LED
    • Illumination in visible range and UV 400nm
    • Software measurement capability