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 computational 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.:


Light sources:

Spectra Physics Quanta-Ray PIV 400 Nd:YAG double-pulse laser
Wavelength:           532 nm and 355 nm
Pulse energy:         2 × 400 mJ @ 532 nm; 2 × 150 mJ @ 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
 

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

Innolas Spitlight OPO laser System
Wavelength:           413 - 709 nm (continuous adjustable)
Pulse energy:         max. 2 x 18 mJ
Pulse frequency:     10 Hz
 

Quantronix Darwin-Duo Nd:YLF double-pulse laser
Wavelength:           527 nm
Pulse energy:         2 × 22,5 mJ @ 1 kHz repetition-rate
Pulse frequency:     Single pulse up to 10 kHz

 
Spectra-Physiks Millennia cw-Laser
Wavelength:           532 nm
Power:                    10 W

Coherent Innova90 Argon-Ion-Laser
Wavelength:           488/514 nm
Power:                    4 W
 
Ulbricht-Sphere
Leuchtdichtenormal LN3 from LMT Lichtmesstechnik GmbH Berlin
Diameter of illuminating area: 70 mm
Mean luminance: approx. 1000 cd/m²

 

Acquisition systems:

PCO edge 5.5 sCMOS camera
Dynamic range:          16 bit
Resolution:                 2560 × 2160 pixel
Pixel size:                   6.5 μm × 6.5 μm
Acquisition frequency:50 images/sec (global shutter)
Quantity:                    8

PCO 4000 Progressive Scan CCD camera
Dynamic range:          14 bit
Resolution:                 4008 × 2672 pixel
Pixel size:                   9 μm × 9 μm
Acquisition frequency:5 images/sec
Quantity:                    4

PCO 2000 Progressive Scan CCD camera
Dynamic range:          14 bit
Resolution:                 2048 × 2048 pixel
Pixel size:                   7.4 μm × 7.4 μm
Acquisition frequency:14.7 images/sec
Quantity:                    2

PCO Sensicam Progressive Scan CCD camera
Dynamic range:          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
Dynamic range:          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
Dynamic range:          12 Bit
Resolution:                 1280 × 800 pixel
Pixel size:                   20 μm × 20 μm
Acquisition frequency: 6242 images/sec @ full resolution
Quantity:                    2

Phantom v7 CMOS high-speed camera
Dynamic range:          12 bit
Resolution:                 800 × 600 pixel
Pixel size:                   20 μm × 20 μm
Acquisition frequency: 4800 images/sec @ full resolution
Quantity:                     1

Princeton Instruments thermos-electrically cooled CCD camera
Dynamic range:          16 bit
Resolution:                 512 × 512 pixel
Pixel size:                   24 μm × 24 μm
Acquisition frequency: 2 images/sec
Dark noise:                 10 e/sec
Read-out noise:          < 8 e RMS
Quantity:                    1

Photonfocus CMOS camera with LinLog-sensor
Dynamic range:          12 bit (upt to 120dB using LinLog-sensor)
Resolution:                 1312 × 1082 Pixel
Pixel size:                   8 μm × 8 μm
Acquisition frequency: 110 images/sec
Quantity:                    1

Titanium IR-Kamera 560M
Resolution:                 640 x 512 pixel
Pixel size:                   15 μm × 15 μm
Spectral range:           3.6 μm - 5.1 μm
Acquisition frequency: 100 images/sec
Integration time:         3 μs - 20000 μs
Quantity:                    1

 

Microscopes:

Leica M165 FC fluoreszence stereoscopic microscope
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

 

Optics:

Infinity K2 long-distance microscope
Objective lenses:    Standard, CF1 – CF4
Accessories:           Amplifier
Quantity:                1

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

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

50 mm, F/1.4 Zeiss Planar Objective lens

Quantity:                2

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

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

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