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Polytec OFV-3001 User Manual

Polytec OFV-3001
101 pages
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Laser Doppler Vibrometer
Controller OFV-3001
Sensor Heads OFV-303/-353
OFV-511/-512
Advanced Test Equipment Rentals
www.atecorp.com 800-404-ATEC (2832)
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Polytec OFV-3001 Specifications

General IconGeneral
Laser ClassClass 2
Velocity range0.01 mm/s to 10 m/s
Measurement PrincipleLaser Doppler vibrometry
Displacement Resolution0.1 nm
Laser Wavelength633 nm
Output SignalAnalog

Summary

Safety Information

Laser Safety

Information on laser safety precautions and hazards associated with the vibrometer's laser.

Laser Warning Labels

Details of laser warning labels used on the vibrometer in different countries.

Electrical Safety

Safety precautions related to the electrical connection and operation of the vibrometer.

Introduction

System Overview

General overview of the Polytec vibrometer system, its components, and signal paths.

Component Summary

Summary of the modular components of the vibrometer, including controllers, sensor heads, and decoders.

First Steps

Operating and Maintenance Requirements

Guidelines for operating and maintaining the vibrometer under specific environmental and operational conditions.

Unpacking and Inspection

Procedures for unpacking the vibrometer components and inspecting them for damage.

Control Elements of the Vibrometer

Description of the control elements on the vibrometer's front and back panels, including controller and sensor heads.

Installation and Functional Test

Step-by-step guide for installing the vibrometer and performing an initial functional test.

Making Measurements

Start-up

Procedures for starting up the vibrometer with different sensor heads.

Displaying the Output Signals

Instructions on how to display and interpret the velocity and displacement output signals.

Selecting Suitable Settings

Guidance on choosing appropriate settings for velocity or displacement measurements.

Operating the Vibrometer

Switching On and Off

Steps for powering the vibrometer on and off, including LED indicators.

Beam Shutter and Emission Indicator

Explanation of the beam shutter operation and emission indicator LEDs on the sensor heads.

Signal Level Display

How the signal level display helps in optimizing laser beam focus.

Focusing the Laser Beam

Methods for focusing the laser beam, including manual and remote control options.

Exchanging the Front Lens

Procedure for replacing the front lens on the sensor head to adapt to different stand-off distances.

Making Single Point Measurements with the Sensor Head OFV-512

Steps for performing single point measurements using the OFV-512 sensor head with a reference head.

Fixing the Focus (only OFV-353)

How to fix the focus on the OFV-353 sensor head for stable long-term operation.

Transport Safety Mechanism (only OFV-511/-512)

Instructions for activating the transport safety mechanism on OFV-511/-512 sensor heads.

Operating the Vibrometer via the Display of the Controller

Guide to operating the vibrometer through the controller's display menus and keys.

Fault Diagnosis

General Tests

Initial general checks to perform if the vibrometer is not functioning properly.

No Laser Beam

Troubleshooting steps to identify and resolve issues when no laser beam is emitted.

No Measurement Signal

Procedures for diagnosing problems when the laser beam is emitted but no measurement signal is detected.

Checklist for Fault Diagnosis

Checklists for diagnosing faults with the controller and sensor heads OFV-303/-353 and OFV-511/-512.

Technical Specifications

Controller OFV-3001

Technical specifications for the OFV-3001 controller, including general data, interfaces, and filters.

Sensor Head OFV-303/-353

Technical specifications for the OFV-303/-353 sensor heads, covering general data and optics.

Sensor Head OFV-511/-512

Technical specifications for OFV-511/-512 sensor heads, including general data, optics, and fiber heads.

Appendix A: Optional Accessories for the Sensor Head OFV-303/-353

Hand Terminal OFV-310

Details of the OFV-310 hand terminal for remote focusing of the OFV-303 sensor head.

Side Exit Adapter OFV-C-128

Information on the OFV-C-128 side exit adapter for deflecting the laser beam.

Tip-Tilt Stage OFV-P5 with Optional Targeting Telescope

Description of the OFV-P5 tip-tilt assembly for fine laser beam positioning.

Appendix B: Optional Accessories for the Sensor Head OFV-511/-512

Reference Head OFV-152

Details on the OFV-152 adjustable reference head for OFV-512 sensor heads.

Side Exit Head OFV-C-102 and OFV-C-110

Information on side exit heads OFV-C-102 and OFV-C-110 for OFV-511/-512 sensor heads.

Fiber Heads

Available fiber heads for OFV-511/-512 sensor heads, including mounting procedures.

Flexible Arm OFV-039

Description of the OFV-039 flexible arm mount for the OFV-511/-512 mini sensor.

Appendix C: Basics of the Measurement Procedure

Theory of Interferometric Velocity and Displacement Measurement

Theoretical principles behind interferometric velocity and displacement measurement using Doppler shift.

Optical Configuration in the Sensor Head OFV-303/-353

Optical configuration of the interferometer in the OFV-303/-353 sensor head.

Optical Configuration in the Sensor Head OFV-511/-512

Optical configuration of the interferometer in the OFV-511/-512 sensor head.

Appendix D: Functional Description of the Controller

Overview

General overview of the OFV-3001 controller's main functions and functional structure.

Signal Conditioning

Explanation of signal conditioning functions, including level measurement and bandwidth limitation.

Oscillator Section

Description of the oscillator section's role in generating drive frequencies for the vibrometer.

Velocity Decoder

Detailed description of the velocity decoders (OVD-01, OVD-02) and their operating principles.

Displacement Decoder

Explanation of displacement decoder types and their operating principles, including direct counting and interpolation.

Appendix E: Interface Operation RS-232 and IEEE-488/GPIB

Configuration of the Interfaces

How to configure the RS-232 and IEEE-488/GPIB interfaces for controller communication.

Interface Control Commands

Commands for controlling the vibrometer's operation mode and status via interfaces.

Measurement Range Setting and Query

Commands for setting and querying measurement ranges for velocity and displacement decoders.

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