Messtechnik

Laser / Cameras
 

The progress in the experimental analysis of fluid mechanical processes bases significantly on the enormous developments in the field of lasers, CCD, and CMOS cameras as well as in the field of computation power. With the help of these components it is possible to measure simultaneously and in a contact-free manner the desired information in several thousand positions without influencing the flow conditions. At the Institute of Fluid Mechanics and Aerodynamics the following illumination sources, acquisition systems, object lenses, and microscopes are available for imaging techniques regarding velocity, pressure, temperature, deformation, etc.:



    Illumination Sources:

    Litron Nd:YAG Double-Pulse Laser Nano S 65-15 PIV
    Wavelength:        532 nm
    Pulse Energy:       2 × 65 mJ
    Pulse Frequency:  0-15 Hz

    Litron Nd:YAG Double-Pulse Laser Nano S 30-15 PIV
    Wavelength:        532 nm
    Pulse Energy:       2 × 30 mJ
    Pulse Frequency:  0-15 Hz

    Innolas Spitlight 400-10
    Wavelength:        532 nm
    Pulse Energy:       200 mJ
    Pulse Frequency:  10 Hz
    Quantity:             2
 
    Quantronix Darwin-Duo Nd:YLF Double-Pulse Laser
    Wavelength:         527 nm
    Pulse Energy:        2 × 22,5 mJ @ 1 kHz repitition rate
    Pulse Frequency:   Single pulse up to 10 kHz

    Spectra Physics Quanta-Ray PIV 400 Nd:YAG Double-Pulse Laser
    Wavelength:         532 nm and 355 nm
    Pulse Energy:        2 × 400 mJ at 532 nm; 2 × 150 mJ at 355 nm
    Pulse Frequency:   10 Hz

    Litron Nd:YAG Double-Pulse Laser Nano L 200-15 PIV
    Wavelength:         532 nm
    Pulse Energy:        2 × 200 mJ
    Pulse Frequency:   0 - 15 Hz

    NewWave Solo XT Nd:YAG Double-Pulse Laser
    Wavelength:         532 nm
    Pulse Energy:        2 × 200 mJ
    Pulse Frequency:   15 Hz

    Spectra-Physics Nd:YVO4 cw-Laser
    Wavelength:         532 nm
    Power:                 10 W

    Coherent Innova90 Argon-Ion-Laser
    Wavelength:         488/514 nm
    Power:                 4 W

    Spectra-Physics Argon-Ion-Laser
    Wavelength:        488/514 nm
    Power:                 5 W
 
    Integrating Sphere
    Luminance Standard: LN3
    Luminous area dia.:   70mm
    Luminance:               about 1000 cd/m²


    Acquistion Systems:

    PCO 4000 Progressive Scan CCD Camera
    Dynamics:                 14 Bit
    Resolution:                4008 × 2672 Pixel
    Pixel Size:                 9 μm × 9 μm
    Acquistion Frequency:  5 images/sec
    Quantity:                   4
 
    PCO 2000 Progressive Scan CCD Camera
    Dynamics:                 14 Bit
    Resolution:                2048 × 2048 Pixel
    Pixel Size:                 7.4 μm × 7.4 μm
    Acquistion Frequency:  14.7 images/sec
    Quantity:                   2

    PCO Sensicam Progressive Scan CCD Camera
    Dynamics:                 12 Bit 
    Resolution:                1280 × 1024 Pixel
    Pixel Size:                 6.3 μm × 6.3 μm
    Acquisition Frequency: 8 images/sec
    Quantity:                   2

    Dalsa Genie M1410 Progressive Scan CCD Camera
    Dynamics:                 10 Bit 
    Resolution:                1360 × 1024 Pixel
    Pixel Size:                 6.45 μm × 6.45 μm
    Acquisition Frequency: 21.9 images/sec
    Quantity:                   4

    Phantom v12 CMOS High Speed Camera
    Dynamics:                 12 Bit 
    Resolution:                1280 × 800 Pixel
    Pixel Size:                 20 μm × 20 μm
    Acquistion Frequency: 6242 images/sec at full resolution
    Quantity:                   2

    Phantom v7 CMOS High Speed Camera
    Dynamics:                  12 Bit 
    Resolution:                800 × 600 Pixel
    Pixel Size:                 20 μm × 20 μm
    Acquisition Frequency: 4800 images/sec at full resolution
    Quantity:                   1

    Princeton Instruments thermoelectrical cooled CCD Camera
    Dynamics:                  16 Bit
    Resolution:                 512 × 512 Pixel
    Pixel Size:                  24 μm × 24 μm
    Acquisition Frequency:  2 images/sec
    Dark Current:              10e/sec.
    Read-Out Noise:          < 8e RMS
    Quantity:                   1

    Photonfocus CMOS Camera with LinLog-Sensor
    Dynamics:                  12 Bit (120dB through LinLog-Sensor)
    Resolution:                 1312 × 1082 Pixel
    Pixel Size:                  8 μm × 8 μm
    Acquisition Frequency: 110 images/sec
    Quantity:                    1

    Titanium IR-Camera 560M
    Resolution:                 640 x 512 Pixel
    Pixel Size:                  15 μm × 15 μm
    Spectral Response:     3.6 μm - 5.1 μm
    Acquisition Frequency: 100 images/sec Full Frame
    Integration Time:        3 μs - 20000 μs
    Quantity:                    1


    Optics:

    Leica M165 FC Fluorescence-Stereomicroscope
    Objective Lens:        Plan-Apochromat 1.0x
                                 Plan-Apochromat 2.0x
    Accessories:            Motorized incident-light stand,
                                 Piezo Stage for the z-axis, 400 µm traverse path,
                                 Reproducibility: 35 nm
    Quantity:                1

    Zeiss Axio Observer.Z1 inverse Epifluorescence Microscope 
    Objective Lens:        LD Plan-Neofluar 2.5x/0.075
    Objective Lens:        LD Plan-Neofluar 5x/0.16
    Objective Lens:        LD Plan-Neofluar 10x/0.3   
    Objective Lens:        LD Plan-Neofluar 20x/0.4
    Objective Lens:        LD Plan-Neofluar 40x/0.6
    Objective Lens:        LD Plan-Neofluar 60x/0.75
    Accessories:            Motorized 3-Axis Precision shifting table
                                 (step size 10 nm)
    Quantity:                1

    Infinity K2 Long-Distance Microscope
    Objective Lens:        Standard, CF1 – CF4
    Accessories:            Amplifier
    Quantity:                1

    50 mm,   F/1.4 Nikon Objective lenses
    Quantity:                4

    24 mm,   F/2.0 Nikon Objective lenses
    Quantity:                1

    50 mm,   F/1.4 Zeiss Planar Objective Lenses
    Quantity:                2

    50 mm,   F/2.0 Zeiss Planar Objective Lenses
    Quantity:                4

    100 mm, F/2.0 Zeiss Planar Objective Lenses
    Quantity:                4

    180 mm, F/2.8 Zeiss Planar Objective Lenses
    Quantity:                2