ISO 9001:2015Made in INDIA

Analytical Instruments


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Electronic Speckle
Pattern Interferometer (ESPI)
Model: HO-AE-ESP18
Price : $ 15,892.00

Electronic Speckle Pattern interferometry (ESPI) is a non-destructive optical method for studying surface deformations. It relies on the interference between diffusely reflected light from the test object and a reference beam.This is one of the most sensitive interferometric technique, so that we can measure sub-micron level displacements either in plane or out of plane. The images before and after deformation are recorded by a CCD camera and analysed using an image analysis software. Deformation causes variations in the fringe pattern.These variations can be analized with the help of the software provided to find the deformations.

As this interferometer is highly sensitive to vibrational noises, Holmarc's ESPI comes with a Vibration isolation optical breadboard. A linearly polarized 632.8nm He-Ne laser with 5mW output power is used as the light source. A beam splitter splits the laser beam into two. The transmitted beam illuminates the test object uniformly via a spatial filter assembly while the reflected beam falls on a CCD as reference beam. The image of the illuminated test object is captured by zoom lens and CCD.

Our ESPI system allows the user to perform the Electronic Speckle Shearographic interferometry in the same system without disturbing the optical set ups and alignments. Holmarc’s camera application software helps to capture and analyze the images.

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Experiment

   To observe and study the deformation of objects with respect to mechanical and thermal loads using electronic speckle pattern interferometer (ESPI)

For ESPI setup we do not need twin images of the sample diaphragm. We only need one image of the diaphragm and the reference beam to get the interference pattern.

Scope of Supply

Optical Breadboard with Support

Model No: No: ED-INT-15-BBVS
Material : Stainless Steel
Dimensions : 1200 x 900 mm
Quantity : 1 no.

Spatial filter Assembly

Model No: ED-INT-15-SFA
Magnification : 60 X
Pinhole Size : 5 micron
Quantity : 1 no.

Beamsplitter Mount

Model No: ED-INT-15-BSM
Material : Black anodized Aluminum alloy
Adjustment Range : +/-4 degrees
Diameter : 50 mm
Quantity : 1 no.

Mirror Mount

Model No: ED-INT-15-MM
Material : Black anodized Aluminum alloy
Adjustment Range : +/-4 degrees
Diameter : 25 mm
Quantity : 1 no.

Test Object Mechanical Loader

Model No: ED-INT-15-TOML
Material : Black anodized Aluminium alloy
Loading : Linearly Micrometer controlled
Quantity : 1 no.

Glass plate Holder with Mount

Model No: ED-INT-15-GHM
Material : Black anodized Aluminium alloy
Slot width : 2 mm
Quantity : 1 no.

Diffuser Mount

Model No: ED-INT-15-DM
Material : Black anodized Aluminium alloy
Slot width : 3 mm
Quantity : 1 no. each

Polarizer Rotator with Mount

Model No: ED-INT-15-PRM
Material : Sheet polarizer
Rotation : 360 degree
Resolution : 1 degree
Quantity : 1 no.

Camera Lens Assembly with Mount

Model No: ED-INT-15-CLAM
Quantity : 1 no.

Beamsplitter

Model No: ED-INT-15-BS
Dimension : 50 x 50 mm
Thickness : 4 mm
R/T ratio : 50 / 50
Material : N-BK7
Coating : Aluminium
Quantity : 1 no.

Mirror with Cell Supply

Model No: ED-INT-15-MC
Diameter : 25 mm
Thickness : 6 mm
Material : Borofloat
Coating : Aluminium
Quantity : 1 no.

Glass Plate

Model No: ED-INT-15-GP
Dimension : 75 x 25 mm
Thickness : 1 mm
Material : Float
Quantity : 2 nos.

Diffuser Plate

Model No: ED-INT-15-DP
Dimension : 50 x 50 mm
Thickness : 2 mm
Material : Float
Quantity : 2 nos.

Helium Neon Laser

Model No: ED-INT-15-HNL
Wave length : 632.8 nm
Optical power : 5 mW
Material : Float
Quantity : 2 nos.

CCD Camera with Mount

Model No: ED-INT-15-CCDM
Resolution : Selectable(320-1280 pixels)
Connectivity : USB 2.0
Quantity : 2 nos.

Heater with Control Unit

Model No: ED-INT-15-HCU
Output Power : 200 Watts
Connectivity : USB 2.0
Quantity : 1 no.

Accessories

Allen Key
Software CD
Thumb Screws
Instruction Manual

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Established in 1993, Holmarc Opto-Mechatronics Ltd manufactures variety of scientific and engineering instruments for research, industry and education.

ISO 9001:2015 Made in INDIA

Get in Touch

    B.7., H.M.T. Industrial Estate H.M.T. P.O, Kalamassery, Kochi Kerala, India - 683 503
   +91 920-719-7772 / 6 / 1
   sales@holmarc.com
   Mon - Sat : 9 am to 5 pm

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