Laser Ultrasonic Receiver (AIR-1550-TWM) - Intopsys
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.
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
- NDT in general
- Crack sizing
- Oil and gas pipelines
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 (Optional 1 GHz Bandwidth) |
Measurement Type | High Sensitivity, Fast Response Laboratory and Factory |
External Probe Laser Requirement | 60 mW DFB Laser Diode Fiber Lasers up to 10W |
FHY Fiber Measurement Head | Aperture: 25 mm Focal Distance: 50-100 mm Spot Size: 100-200 um |
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 |
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
