Blue-X-Lite (LED light source)

The Blue-X-Lite is an entry-level professional flicker-free lighting solution for DIC. Short wave length, small bandwidth, pulse mode, focusable

The Blue-X-Lite can be used in continuous wave mode (CW) or in pulsed mode (Pulse) with 20 W. Due to its fast rise times < 100 ns in combination with special trigger unit it is also suitable for synchronization with DIC systems with stroboscopic illumination.
Light intensity can be controlled stepless up to 60% light intensity for continuous wave mode (CW) and 100% light intensity for pulse mode (Pulse).
Frame rates: Two versions are available with trigger frequency up to 1,000 Hz or 10,000 Hz.
The Blue-X-Lite can be easily attached directly to the stereo bar by flexible arms for individual adjustment of the light direction.
The fanless design offers the advantage of no vibrations transmitted to the stereo bar.
Mounting: 1/4″, 3/8” and M6 threads for tripod or flexible mounting arms (bottom). M4 threads (front) for mounting to VIC-Professional fine adjustment camera mounts.

VIC-Gimbal

VIC-Snap APP and target fixtures:
The calibration procedure of VIC can be done easily done moving the targets manually. However for small field of view where manual positioning of the targets and the influence of motion blurring becomes difficult we offer the BCTF 50 and now new the VIC calibration gimbal.

The VIC calibration gimbal for automated calibration of VIC-3D systems via USB & VIC-Snap or Wifi & VIC-Snap App, which especially is useful for non reachable areas such as climatic chambers

BCTF-50 – Backlit Calibration Target Fixture

The BCTF-50 – Designed for glass calibration targets

BCTF-50 Technical Features

Battery powered backlight illumination
6h run time / 1h charge via Micro USB
Adapter for microscope targets
Rotational axis for tilting in grid centre
Shifting via x-y-z stage
Tensile testing machine clamp adapter
Target exchange via clip fixture
For max. target size of 50 x 50 mm
available with different clamping adapters for flat or round specimens (see below)

For further information, a quotation or in case of any questions, please don’t hesitate to contact us via info@correlatedsolutions.eu

Speckle Pattern Application Kit

The Speckle Pattern Application Kit for the easy and fast production of a perfect speckle pattern for your DIC application!

The correlated solutions speckle components provide the production of ideal speckle pattern which is important for good signatures throughout the area of interest so that consistent sized subsets may be tracked with certainty

Characteristics and advantages:

High contrast, quick preparation
Precision: Optimised and consistent dot sizes
50 % coverage: equal amount of black and white
Random: Perfect mixture between irregular and regular pattern
Result: improved higher spatial resolution due to optimised subset size and highly reduced noise

Why a good speckle patter is required?

In DIC, a mesh of small subsets of the image are tracked as the specimen moves and deforms. To perform this tracking, the subsets are shifted until the pattern in the deformed image matches the reference image as closely as possible; this match is calculated by the total difference in grey levels at each point. A good pattern will allow the correlation to be made with high confidence and produce low noise. The example below shows the uncertainty for the out of plane measurement data in Z-direction with different speckle patterns.

In order to provide consistent speckle patterns for various sample sizes and materials, the speckle kit includes:

Stamp Rollers (6 sizes):

0,18mm dot size for 53 – 145mm FOV*
0,33mm dot size for 102 – 296mm FOV*
0,66mm dot size for 203 – 539mm FOV*
1,27mm dot size for 389 – 826mm FOV*
2,45mm dot size for 762 – 2032 mm FOV*
5,08mm dot size for 1524 – 4064 mm FOV*

Flat Stamp Rockers 146 x 146mm (6 sizes)

0,18mm dot size for 53 – 145mm FOV*
0,33mm dot size for 102 – 296mm FOV*
0,66mm dot size for 203 – 539mm FOV*
1,27mm dot size for 389 – 826mm FOV*
2,45mm dot size for 762 – 2032 mm FOV*
5,08mm dot size for 1524 – 4064 mm FOV*
Rocker for Flat Stamps

Accessories:

extra ink
ink pad
hard padded carrying case

* recommended FOV (image width) for standard 5Mpx sensor with 2500x2000px. Alternatively check dot size, which should be minimum about 3x3px.

For further information, a quotation or in case of any questions, please don’t hesitate to contact us via info@correlatedsolutions.eu

Polarization filter for HEDLER LED

NEW! The new polarization filter for HEDLER LED

The major reason for applying light forming equipment in DIC is to avoid direct reflections. The HEDLER Profilux LEDs can be equipped with different light forming accessories such as usually applied in conventional photo studios. Some of them are also suitable for DIC. Correlated Solutions Europe can recommend suitable accessories for your application.

However the first basic recommendation is to set up the light source independently from the DIC system to adjust a suitable illumination direction. In a number of applications this is sufficient and these accessories can be avoided, which is of advantage, because their application is combined with light losses.

A highly recommended item is the new polarization filter especially developed for the high power Hedler LED 1000, which helps to work on strongly curved and shiny – even wet – surfaces, when combined with suitable polarisation filters on the DIC stereo system

HEDLER LED light sources

isi-sys offers various light sources from Hedler, in particular the following products, for which we also offer a polarization filter specially developed by us (read more>>):

LED1000

Focusable white LED light source with 185W, continuous wave

The HEDLER Profilux LED1000 is a new developed continuous light unit which generates with one high power single LED daylight quality with approx. 5600K and a CRI > 90 – flicker-free! It has an extremely quiet fan cooling and a special, active LED cooling; the LED has an average lifetime of approx. 50000 hours.

It comes with:

Fresnel lens
185 Watts high power single cell LED
Integrated Electronic Ballast
U-bracket with 5/8″ quick-lock light stand attachment and friction brake plus the HEDLER QuickFit adapter for comfortable and fast interchanging of reflectors.

LED 650

70° expanded white LED light source with 75W continuous wave

LED 1000x

75°expanded white light source with 185W continuous wave

Note: The LED 650 and 1000x are only recommended for large FOV >1m applications at short object distances for cost reasons. Operation with separate light stand or tripod recommended, as without focusing such as for LED 1000.

Blue-X-Focus – LED light source

The new LED light source with 100W power and up to 200W in pulse mode

The Blue-X-Focus is a powerful LED light source, especially designed by isi-sys for digital image correlation:

The short, single wave length (blue) improves the optical transfer function properties especially a) at the image boarders for conventional lenses and b) for high resolution, small FOV set-ups such as the Micro 3D stereo sensor.
The pulse mode reduces motion blur and maximizes light power at lowest possible heating of the object surface
Large beam expansion range from 5° to 60° for small to large field of view. Operation through small windows
A polarization-filter (optional) is suppressing direct reflections in combination with a second pair for the sensors
The short wavelength can be used in combination with bandpass filters for measuring on hot samples

Further details:

Power: Standard operation with 100W in continuous mode or 200W for pulse mode depending on duty cycle. Example for 0,7 duty cycle: 105W @ 240Hz and 2,9ms flash period. Power adjustable manually or external by pulse length and frequency as well as automatically limited depending on temperature.
The focusing adapter for standard DIC is from 5° to 60° expansion.
Mounting is possible horizontal or vertical via ¼” threads
The cooling air stream is directed from the front inlet to the backside to avoid hot air waves in the images.

Application example for DIC on small FOV (magnification 1:1 approx. 14x10mm @ 12Mpx, Rodagon 135mm)

DAQ Devices

The isi-sys DAQ devices are set up for operation with the Vic software for Digital Image Correlation (DIC) by Correlated Solutions and function as integral part of isi-sys turn-key DIC systems. They mainly serve for triggering the cameras (hardware trigger) and simultaneously recording analog data as well as for delivering analogue real-time output generated by the Vic-Gauge software.

There are three DAQ types with different performance and features (and pricing):

Only the DAQ-STD- 8D Synchronization- / Trigger Device can be used for synchronization of the cameras via a periodic signal (supported by the Fulcrum Module of Vic-Snap or the isi-sys synchronisation software module / isi-Studio

Isi-sys also offers a 16-bit device – the DAQ-T8D-16. Both devices have +/-10V output channels.

DIC-DAQ-Box-klein
The DAQ-T4D-12 is a 12bit device with 5V analog output

Camera Trigger & Power supply

Hardware triggering and the power supply for the cameras are transmitted via the 12-pin Hirose connectors on the DAQ device. Two of these connectors are available for connecting up to two cameras. Isi-sys also offers Y-cables for operating 4 cameras (two stereo systems) or more. It is also possible to operate more than two cameras with one DAQ device. We will be happy to advise you.

Computer Connection

Connection to a computer is done by USB cable (type A <-> type B connector).

Analog inputs

isi-sys DAQ devices are available with either differential or non-differential analog inputs. The analog input connectors are BNC type, the range is +/-10V.

Further IO connectors

Besides analog inputs, all isi-sys DAQ devices can also be equipped with analog outputs (BNC type connector), which differ in voltage range depending on DAQ type. Digital IO connectors (BNC type) are available as well.

Vic-3D Educational System

The new VIC-3D Educational (EDU) System from Correlated Solutions is a low-cost solution developed for academic institutions to assist in teaching the Digital Image Correlation technique to undergraduate and graduate students.

The VIC-3D EDU system utilizes the same accurate DIC algorithms found in the powerful VIC-3D software, while allowing users to acquire data quickly and easily. The system features a simplified setup, streamlined image acquisition, and ideal post-processing features. The stereo cameras are mounted inside a protective enclosure, which includes an integrated LED light source, a cooling fan, and an exterior USB & power connectors. The system also includes a tripod, tripod head, speckle roller, ink pad, calibration target, and a convenient carrying case.

This product is the perfect addition to engineering courses such as solid mechanics, measurements, structures, automotive design, aerospace, safety, FEA validation, and many others. Furthermore, the VIC-3D EDU software has the ability to process images acquired from any VIC-3D EDU system, which allows users to share images not only across campus, but also with colleagues at other universities. The system simply requires a computer with one available USB3 port and one available power source. Whether you are teaching students new measurement techniques or validating FEA models, this system will surely enhance the quality of your department’s curriculum.

VIC-3D Educational System specifications:

Camera Resolution	1920 x 1200 (2.3 Megapixels)
Frame Rate	20Hz live, .5Hz acquisition, 100 frames per capture
Exposure Time	19µs – 1s
Field of View	Fixed: 150 x 200mm
Displacement Resolution	In-plane: +/-2µm; Out-of-plane: +/-4µm
Strain Measurement Resolution	50µε
Strain Measurement Range	0.005% to >2000%
VIC-3D EDU Licenses	Unlimited
Software Features	3D displacements, strains, graphing tools, and much more

For more information or a quotation please don’t hesitate to contact us on info@correlatedsolutions.eu or via phone: +49 561 739798-0.

3D-Micro-DIC System

The 3D-Micro-DIC stereo sensor system is developed for full field strain and deformation measurement on small FOV with highest precision and resolution over the complete field of view by 3D digital image correlation (DIC). It also operates as extensometer for real-time stain control. The Example below shows the new sensor version 2019 for 1:1 magnification. FOV range starts from 2:1 with 4.2 x 3.5 mm @ 5Mpx and 75Hz.

Advantages and features of the 3D-Micro-DIC system:

Compact and rigid design, quick set-up and easy handling
Pre-adjusted, fixed field of view and stable calibration
Specially designed for small and very small field of view (FOV)
Reliable and fast USB 3.0 interface for Desktop or Laptop PCs
Turn-key solution including Vic-Snap and Vic-Gauge 3
DRobust and reliable post-processing with Vic-3D

strainograph-test-sample

strainograph-diagram

Technical highlights of the 3D-Micro-DIC system

3D full field (5Mpx@75Hz frame rate) continuously recording on SSD
Higher framerates at reduced resolution
(e. g. [Pixel@Hz]: 1600×1200@133; 1920×1080@148; 1280×720@217; 800×600@258; 640×480@315; 320×240@576).
suitable for Video-Extensometer functions and real time feedback control
Strain noise level of ±0,001% (±10µstrain) and better by time averaging
Deformation sensitivity in nm range (1/100 pixel) depending on FOV

Available small FOV versions [mm]

1:2 Magnification (~ 16mm x 12mm @ 2.8 mm FOD)

1:1 Magnification (~ 8mm x 6mm @ 1.2 mm FOD)

2:1 Magnification (~ 4.2mm x 3.5mm @ 0.25 mm FOD)

Data acquisition units (DAQ) for 3D-Micro-DIC

strainograph-daq2

Image synchronised analogue data recording (8x differential mode,16 bit, ±10V)
2 x analogue output channels for feedback control (16 bit, ±10V)
Camera triggering and (optional) phase synchronisation for periodic signals
Fully integrated and supported by all VIC ^TM software modules

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