Optical Accessories

9월 28, 2019
hysen
Vbrometer Accessories
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– A-IOB-xxxx Interference Objectives
– A-MOB-xxxx Bright Field Objectives
– OFV-102 / OFV-130-x Fiber Head
– OFV-153 Adjustable Reference Head
– OFV-C-102/110 Side Exit Head
– OFV-C-128 90° Side Exit Probe
– OFV-SR / OFV-MR / OFV-LR / OFV-SLR Front Lens
– VIB-A-10xLENS / VIB-A-20xLENS Microscope Lens
– VIB-A-100 Beam Deflecting System
– VIB-A-510 Illumination Module
– VIB-A-530 Side Exit Head
– VIB-A-531 Side Exit Head
– Mirror Kits

A-IOB-xxxx Interference Objectives

The variety of interference objectives available for Polytec’s topography
measurement solutions allows you to select magnification, working
distance and field of view to meet your application needs.

For for topography measurements through glass, all Michelson type
objectives feature a slot for a compensation glass to adjust the optical
path of the interferometer setup.

Specifications

	Magnification	Working distance	Objective type
A-IOB-02X5	2.5x	10.3 mm	Michelson type
A-IOB-004X	4x	30 mm	Michelson type
A-IOB-005X	5x	9.3 mm	Michelson type
A-IOB-010X	10x	7.4 mm	Mirau type
A-IOB-020X	20x	4.7 mm	Mirau type
A-IOB-050X	50x	3.7 mm	Mirau type
A-IOB-100X	100x	2 mm	Mirau type

note : For instrument-specific specifications (e.g. field of view) please refer to the respective datasheet.

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A-MOB-xxxx-Bright Field Objectives

The variety of bright field objectives available for Polytec’s microscope-
based vibrometers allows you to select magnification, working distance,
field of view and laser spot size to meet your application needs.

Specifications

	Magnification	Working distance
A-MOB-001X	1x	13 mm
A-MOB-002X	2x	34 mm
A-MOB-03X6	3.6x	53 mm
A-MOB-005X	5x	≥34 mm
A-MOB-010X	10x	≥33.5 mm
A-MOB-10LD	10x	48.9 mm
A-MOB-020X	20x	≥20 mm
A-MOB-050X	50x	≥13 mm
A-MOB-100X	100x	≥6 mm

Note : For instrument-specific specifications (e.g. field of view, spot size) please refer to the respective datasheet.

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OFV-102/OFV-130-x Fiber Head

Mini Sensor (left), OFV-102 Fiber Head (right)

OFV-130-x Fiber Head

Fiber heads replace the default Mini Sensor of your OFV-55x Fiber Optic Interferometer and are used to adapt
the laser beam properties with respect to stand-off distances and spot size. Three Models for variable and
fixed-focus applications are available.

Specifications

	Mini Sensor	OFV-102 Fiber Head	OFV-130-3 Fiber Head	OFV-130-5 Fiber Head
	Standard	Accessory	Accessory	Accessory
Length		57 mm	approx. 105 mm	approx. 105 mm
Max. diameter		24 mm	24 mm	24 mm
Focal length	16 mm	20 mm	36 mm	42 mm
Stand-off distance	>60 mm	>80 mm	55 +/-2 mm	76 +/-2 mm
Spot size (typ.)	21 µm @ 60 mm, 324 µm @ 1000 mm	30 µm @ 80 mm, 236 µm @ 1000 mm	4

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OFV-153 Adjustable Reference Head

For optimized performance of single point measurements with the
OFV-552 Differential Sensor Head. The OFV-153 Adjustable Reference
Head terminates the reference fiber when working in single-point mode.
A slider allows adjustment of the optical path length in the reference fiber,
thereby providing means to set the system to the visibility maximum.

OFV-552 Differential Sensor Head with OFV-153 Adjustable Sensor Head

Note: The OFV-153 Adjustable Reference Head requires the OFV-102 Fiber Head

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OFV-C-102/110 Side Exit Head

Provides 90° deflection of the laser beam. For use with the OFV-55x
Fiber Optic Interferometer.

Diameter: 5 mm (OFV-C-102) / 10 mm (OFV-C-110).

OFV-C-102 (bottom), OFV-C-110 (center)

Technical Details

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OFV-C-128 90° Side Exit Probe

For OFV-50x, OFV-525 and OFV-3×3 single-point heads. Deflects the laser beam by 90°. The direction of the laser can be
adjusted by rotating the tip of the adapter.

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OFV-SR/OFV-MR/OFV-LR/OFV-SLR Front Lens

By using different front lenses with the single-point sensor head the
vibrometer is optimally adapted to different stand-off distances and
depths field. The longer the focal length of the objective the higher is
the signal level at the same stand-off distance whereas the depth of
field decreases. Exchange of front lenses is swift and easy.

Specifications

	OFV-SR Short- Range	OFV-MR Mid- Range	OFV-LR Long- Range	OFV-SLR Super-Long- Range
Focal length	30 mm	60 mm	100 mm	200 mm
Min. stand-off distance	60 mm	185 mm	530 mm	1800 mm
Max. stand-off distance	5 m	10 m	100 m	>300 m
Spot size (typ.)	500 µm @ 2 m, 1260 µm @ 5 m	235 µm @ 2 m, 604 µm @ 5 m	135 µm @ 2 m, 356 µm @ 5 m	60 µm @ 2 m, 168 µm @ 5 m

Note: Data below are applicable for OFV-50x and OFV-525 single-point sensor heads only.

For use of OFV-MR and OFV-LR front lenses in conjunction with the PSV-400-x Scanning Vibrometers different specifications apply.

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VIB-A-10xLENS/VIB-A-20xLENS Microscope Lens

By incorporating a microscope lens, your Polytec
vibrometer can examine microscopic objects in the same
way as you can examine large objects. The microscope
lenses are most suitable for measurement heads equipped
with an internal camera system.

Recommended accessories for use in conjunction with the microscope lens

VIB-A-Pxx Positioning Stages for fine adjustment of the test object
VIB-A-510 Illumination Module for optimum lighting
VIB-A-T30 Test Stand

Specifications

	VIB-A-10xLENS	VIB-A-20xLENS
Magnification	10x	20x
Working distance	37.3 mm	21.7 mm
Spot diameter	3 µm	1.5 µm

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VIB-A-100 Beam Deflecting System

This accessory consists of an adapter plate to connect to your
vibrometer system and several optical components that can be used
individually or in combination according to your specific application
needs. The VIV-A-100 Beam Deflecting System allows a remote-
controlled, minimal deflection of the laser beam in order to avoid or
reduce speckle dropouts and thus to improve the signal quality.
A 90 o deflector is also available to enable measurements in positions
that are difficult to access with the normal configuration.
See datasheet for details.

VIB-A-100 Beam Deflecting System Datasheet

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CLV-2534 Compact Laser Vibrometer
PDV-100 Portable Digital Vibrometer
IVS-400 Industrial Vibration Sensor
OFV-534 Compact Sensor Head

VIB-A-510 Illumination Module

LED light source providing a coaxial illumination of the test object.
The VIB-A-510 Illumination Module is designed to provide optimum
lighting conditions for examining small objects.

It consists of the actual illumination unit which is securely fastened to
the sensor head and a separate hand-held dimmer unit providing
continuously adjustable control of illumination intensity.

Note

– The illumination unit is highly recommended for use with the VIB-A-10xLENS / VIB-A-20xLENS Microscope Lenses.
– The illumination unit does not work in conjunction with the VIB-A-520 Telephoto Lens.

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VIB-A-530 Side Exit Head

Attached to the objective lens of the sensor head, the
VIB-A-530 deflects the laser beam by 90°. The exit direction of
the beam is positioned by rotating the unit about the tube axis.

Specifications

Working distance (from tube exit): 53 mm
Note : The use of the VIB-A-534-CAx camera option will be impaired.
When utilizing the camera option, please use the VIB-A-531 Side Exit Head.

VIB-A-531 Side Exit Head

Attached to the objective of the sensor head, the VIB-A-531
provides a 90° deflection of the laser beam and the video image
(when camera option VIB-A-534-CAx is used). The exit
direction of the beam is adjustable by turning the unit.

Specifications

Working distance: 225 mm

Mirror Kits

Mirror kits contain general-purpose mirrors that are used to guide the
vibrometer laser beam into difficult-to-access areas. They offer
maximum flexibility for changing measurement situations. The high-
quality mirrors use dielectric coatings specially designed for helium-
neon laser (633nm).

All kits come with magnetic mirror holders. For mounting on non-
magnetic surfaces, mirror kits also include solid ferromagnetic base
plates.

Alternative Products:
OFV-036-M 2-Axis Mirror Mount with He-Ne Mirror.

Features

	A-MIR-2030 200x300mm Mirror Kit	PSV-A-MIR Intermediate Mirror Kit	PSV-A-MIR+ Premium Mirror Kit
Included mirror sizes	–	–	300 mm x 400 mm
	200 mm x 300 mm	200 mm x 300 mm	200 mm x 300 mm
	–	150 mm x 200 mm	150 mm x 200 mm
	–	100 mm x 150 mm	100 mm x 150 mm
	–	50 mm x 75 mm	50 mm x 75 mm
Quantity of mirror holders / base plates	(1)	(2)	(2)
Heavy-duty protection case for storage	yes	yes	yes

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Optical Accessories

OFV-552 Differential Sensor Head with OFV-153 Adjustable Sensor Head

Note: The OFV-153 Adjustable Reference Head requires the OFV-102 Fiber Head

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