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Data Storage |
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News
LM INFO Special Issue 2/2004:
Measuring to the Limits - Vibrometer Applications in the Data Storage Industry |
In the Data Storage industry Laser Doppler Vibrometers are widely used for
- Quality Control
- Modal Analysis for FEM validation - Laser Doppler Vibrometry is the only practicably method to obtain data for modal analysis
- Analysis of dynamic processes
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VIB-D-01: LDV Investigation of Resonance Effects on Read/Write Heads
TOP-01: Surface Quality Control of HDD Components using TopMap
Complex Mechanical Relationships on HDD's
HDD Noise Investigation |
Products
VDD Digital Vibrometer
OFV-5000 Modular Vibrometer
OFV-551/552 Fiber-Optic Interferometer
CLV-3D Compact 3-D Laser Vibrometer
PSV-400 Scanning Vibrometer |
Links
Polytec LLC equipment incorporates Polytec's vibration measurement technology for the data storage and semiconductor industry
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Copyright 2009 Polytec GmbH. Technical specifications are subject to change. |
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VDD PC-Based Digital Vibrometer
Digital Laser Doppler vibrometers offer answers when analog LDVs are pushed to their resolution limits.
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For very difficult and stringent applications as measurements in data storage, micro-electro-mechanical structures (MEMS) or hearing dynamics
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Combination of highest performance data acquisition, comprehensive VibSoft Software package and analog front-end
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For calibration purposes only digital LDVs are applicable
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 VDD PC-Based Digital Vibrometer |
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OFV-5000 Modular Vibrometer Controller
The core of Polytec’s latest state-of-the-art laser vibrometer systems M
- Modular design to be tailored to specific or multiple applications
- A range of new features that make non-contact vibration analysis even more precise, simple, flexible and rewarding
- Can be incorporated as part of a small scale lab test, or expanded all the way up to a full scanning vibrometer system
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 OFV-5000 Vibrometer Controller |
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OFV-552 Fiber-Optic Interferometer
The OFV-552 differential sensor head gives the customer complete access to the probe beam as well as the reference beam.
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Allows measurement of relative motions between two points of a structure
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Widely used for valve kinetics studies, where one laser beam is focused onto the valve and the other onto the cylinder
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 OFV-552 |
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OFV-551/552 Fiber-Optic Interferometer
Fiber optic LDV systems allow the user to point the measurement laser beam via a flexible cable terminated by a mini-lens. Fiber interferometers are most often used to measure small parts, when
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physical access is difficult,
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close stand-off-distances are required,
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or where relative motions between two points need to be measured.
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 OFV-551 Fiber Optic Sensor |
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CLV-3D Compact 3-D Laser Vibrometer
Polytec's 3-D laser vibrometer simultaneously measures all three linear velocity components at a point on a vibrating structure.
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Small measurement volume allows non-contact
3-D vibration measurements even of small components
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True Vx, Vy and Vz analog outputs in real time at vibration frequencies as high as 250 kHz
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 CLV-3D Compact 3-D Laser Vibrometer |
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PSV-400 Scanning Vibrometer
State-of-the-art measurement technology for the analysis of structural vibrations. Entire surfaces in the mm² to several m² range are rapidly scanned and automatically probed with flexible and interactively created scan grids. S
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For resolving noise and vibration issues in the automotive, aerospace, commercial manufacturing and R&D markets
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Full analysis of vibration data, including graphing, animation and data export
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 PSV-400 Scanning Vibrometer |
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