The
AIR-1550-TWM Laser Ultrasonic Receiver
represents the state-of-the-art in non-contact
laser ultrasonic testing. The AIR-1550-TWM is
the first laser ultrasonic receiver operating at
the telecom and eye-safe wavelength of 1550 nm.
Eye-safe lasers are important for the protection
of researchers as well as for workers in
production environments.
The operating wavelength also enables the
AIR-1550-TWM to work effectively with simple,
low-cost laser sources, such as DFB or fiber
lasers, thereby reducing system cost and
eliminating laser maintenance concerns.
The AIR-1550-TWM includes a compact
fiber-coupled measurement head. This sensor head
enables remote measurement and is ideal for use
with complex configurations or where measurement
access is limited.
The non-contact measurement capability of laser
ultrasonics and its immunity to test-piece
temperature and motion make it ideal for factory
use. The AIR-1550-TWM is available configured
for factory applications with an optional
ruggedized measurement head and fiber optic
cables. |
AIR-1550-TWM Receiver and Measurement Head
|
Typical Applications:
Thickness measurements
• Glass containers
• Ceramic and metallic coatings
• Steel tubes and cast iron pipes
Defect Detection
• Laser welds
• Ceramic coatings
• Electronic packages
• Bonded components
• Small parts
Crack sizing
• Oil and gas pipelines
|
AIR-1550 Receiver as part
of a system performing tests on a steel
tube. |
When incorporated into a full laser ultrasonic
measurement system, the AIR-1550-TWM can measure
thickness, density and temperature with laser
precision. In addition, laser ultrasonics can be
used effectively to locate sub-surface defects
such as inner wall corrosion or delaminations.
These inspection systems can be used with real
time feedback for process control or in-service
system inspection. |
Specifications
|
Model |
AIR-1550-TWM |
| Surface
Displacement Sensitivity |
4 x 10-7 nm rms (W/Hz)1/2 |
| Detector
Bandwidth |
125 MHz |
| Measurement
Type |
High Sensitivity, Fast
Response Laboratory and Factory |
| External Probe
Laser Requirement |
60 mW DFB Laser Diode
Fiber Lasers up to 2W |
| FHY Fiber
Measurement Head |
Aperture: 25 mm
Focal Distance: 50-100 mm
Spot Size: 100-200 μm |
| Optional Guide
Laser Beam |
Diode Laser at 650 nm |
| Analog Output |
50 Ohm source |
| Electrical
Requirements |
100/220 V, 50/60 Hz |
| Alignment
Signal |
Provided by internal piezo
mirror |
| Dimensions |
325 x 250 x 100 (L x W x H,
mm)
Compatible with 19-inch rack mount cabinets |
| Installation
and Training |
Installation included.
Training offered for a fee at IOS or
customer site |
|
Broad Uses of Laser Ultrasonics
Laser ultrasonics is ideally suited for many
applications that are beyond the capabilities of
conventional ultrasonic testing. The
applications extend over three broad areas:
• Process monitoring: measurements
early in an
industrial process on parts
that are hot and/or
moving at high
speed
• Post-process evaluation:
high resolution
inspection of small
parts; fast areal scans of
large
components or structures
• In-service inspection: inspection of
complex
structures (turbine blades);
inspection under
hazardous
conditions (nuclear power plants);
fast scanning of safety-critical oil
and gas
pipelines
|
Features of Laser Ultrasonics
Laser ultrasonic testing offers many advantages
when compared with traditional contact
inspection
techniques:
• Remote, non-contact, reconfigurable
• Can scan measurement head
or sample
• Proven at speeds ≥ 5 m/sec
• Proven at temperatures ≥ 2000°F
• High bandwidth operation
• High spatial resolution
• Micrometer thickness accuracy
• Small contact area on sample
|
Laser Ultrasonics
