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isi
Vibrograph
for vibration analysis and non destructive inspection |
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Full
field and contactless at fractional wavelength.
Maximum sensitivity without need
for vibration isolation. |
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The
Vibrograph
is applied for
- vibration measurements typically in combination with laboratory
shakers in
harmonic excitation modes using the forced normal
mode excitation method.
- non destructive testing in combination with dynamic, thermal heating
and
static loads (vakuum and internal pressure) |
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spatial
resolution:
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depending
on CCD camera, e. g. 782(H) x 582(V) pixel = 455124
independent measurement points
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frame rate:
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25Hz
to 50Hz depending on CCD camera and measuring mode |
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object
distances: |
300mm - 1000mm (depending on lenses) |
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min.
object diagonal:
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Approximate 50 mm
(depending on lenses) |
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max.
object diagonal:
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Depending on Laser power and object surface reflection properties |
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frequency
range:
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Tested up to 40 kHz for quantitative evaluation |
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illumination
power: |
Laserdiode arrays with 200mW, 400mW, (600mW, 800mW) |
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image
shearing:
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Manually and computer controlled (shearomatic) |
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size,
weight:
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340mm x 100mm x 70mm, appr. 3-4kg depending on configuration |
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mobile
application: |
only
sensor and a portable PC required |
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system components:
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PC-boards
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isi-trigger
device, piezo
device, framegrabber
optional: function generator
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Light sources
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laser-diodes
or cw-laser with AOM
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Excitation sources
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piezo
shaker and amplifier
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subject
to modifications |
