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MiniLDV brochure 
MiniLDV description
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[응용분야]
- Fluid mechanics, turbulence, oceanography, and atmosphere studies
- Micro channels
- Wind, water, oil tunnels and channels
- Surface speed measurements
- Refrigeration air curtain
- Drag reduction measurements
- Speed of boats, ships, seabearing vessels
[제품특성]
- Self-contained
- No alignment needed
- Calibration done at the factory
- No water cooling required
- Makes accurate measurement of fluid of varying temperature, pressure, and density
- Computer controlled 1, 2, and 3-axis traversing system
- 2D and 3D automated profile measurement
- Battery operated option
- Waterproof and temperature resistant housing option
- Frequency shifting feature allows measurement of direction along with speed |
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[제품사양]
Measurement Specifications |
| Velocity range |
1 ㎜/sec to 300 m/sec |
| Repeatability |
0.1% |
| Accuracy |
99.7% typical |
Probe Volume |
Size (air)
(x by y by z) |
30 by 60 by 200 ㎛ to 100 by 200 by 1200 ㎛
(depends on standoff distance) |
| Standoff distance (air) |
1.30, 1.97, 3.94, 5.91, or 9.4 inches
(33, 50, 100 or 240 ㎜) |
Probe Specifications |
| Probe weight |
250g |
| Dimensions |
1.25" (32㎜) diameter, 6.5" (165㎜) long |
Laser Specifications |
| Laser Power |
60 ㎽ |
| Wavelength |
660㎚ |
| Laser Type |
Class lllb |
Operating Parameters |
| Temperature |
0 to 65 ℃ |
| Pressure |
Up to 35 bar |
| PC requirements |
32-bit PCI slot, Windows 2000, Intel Pentium 4 or better |
Optional Features |
| Water resistant housing |
| High pressure & temperature housing |
| Traversing stage for profile measurments |
| Battery operated |
| 1-D, 2-D, and 3-D systems |
Power Supply |
110 Volt (standard)
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| 220 Volt (optional) |
| 12 Volt battery (optional) |
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FlowLab brochure
FlowLab description |
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The flowLab is a state-of-the-art miniature water tunnel. With roughly the footprint of a standard desk, it is perfect for classroom demonstrations of flow phenomena or small-scale research projects. The test section can be changed in a few minutes by removing 12 screws, and its simple design allows users to easily build their own sections to complement the collection offered by MSE.
A standard male-thread spigot allows for easy draining of the reservoir via a standard garden hose.
Coupled with a miniLDV™ System, the flowLab becomes a versatile training and demonstration facility utilizing a modern laser measurement method with real-world application.
[응용분야]
- Classroom demonstrations
- Training facilities
- Small-scale experiments
- Proof-of-concept studies
[제품특성]
- A complete flow loop - just add water
- Documentation with introduction to fluid principles in Microsoft Word format(editable)
- Easily change the flow between flow over a cylinder, flow over an airfoil, laminar
boundary layer, pipe, and circular jet flows
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[제품사양]
Flow Specifications |
| Maximum flow rate |
40 US Gal/min (150 L/min) |
Maximum speed,
free test section |
1 m/s (3.3 ft/sec) |
Maximum speed,
jet test section |
5 m/s (15.5 ft/sec) |
Demensional Specifications |
Weight, empty |
90 lbs (41 kg) |
| Weight, full |
380 lbs (173 kg) |
| Width |
52" (1320 ㎜) |
| Height |
35" (890 ㎜) |
| Depth |
22" (560 ㎜) |
| Test section |
2 by 2 by 24 in (50 by 50 by 610 ㎜) |
| Contraction |
6.25 : 1 |
| Reservoir |
35 US Gal (133 L) |
Standard Features |
| Axisymmetric jet test section |
| Test section with model plug |
| Mounted airfoil (NACA 0012) and cylinder models |
| Blank plug |
Optional Features |
Free plenum |
| Flat-plate test section |
| Hydraulic jump test section |
| Circular pipe flow test section |
| Biofluids test section |
| miniLDV System with manual traverses |
| miniLDV System with motorized traverses |
Power Supply |
110 Volt (standard)
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| 220 Volt (optional) |
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The measuring system consists of laser, optic,
controller, FFT module and software. A the HeNe laser,
which is directly coupled with the optic (fp40 or fp50),
is used for the basic system as light source. The advantage
of this setup compared to fiberoptical solutions is high
efficiency of the laser beam delivering and the low costs.
The space-saving fiberoptical systems can be equipped
with Argon Ion and Nd:YAG lasers.
The fiberopticalfp63 probe can be easily converted into
a 2D-system by adding additional transmittingfibers. The
coupling of the laser light into the fibers, the wavelength
separation, and the frequency shifting is done within
a fiber box.
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Probe
fp40 with Controller
10mW HeNe-Laser,
focal length f=90-160mm, no frequency shift, avalanche
photodiode, velocity range v<40 m/s. Application
: Calibration of flow sensors |
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Probe
fp80 with Controller
150mW Nd:YAG-Laser integrated in controller
unit, also available
with Ar+-laser, one transmitting fiber(monomode,
polarisation
preserving), Braggcell and photomultiplier integrated
in probe fp80, focal length f=310-500mm, velocityrange
v<100m/s |
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Probe
fp63 with Fiberbox
Fiberprobe,
focal length f=160-800mm, 2 transmitting fibers 1
receiving fiber, the 1D-probe can be upgraded to
a 2D-system, watertight, fiberbox with Braggcell
and dispersion prism for wavelength
separation, including high precision input manipulators,
photomultiplier integrated in Controller |
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Probe
fp63 as a 3D-System
Designed for underwater applications, focal length
in water f=600mm, tube for easy measuring volume
adjustment |
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Software
The evaluation of the doppler bursts by FFT methods
is done with the well established PC based spectral
analysis modules.Datarates of up to 1.8 kHz are
achievable. The software contains a traversing module
for positioning traversing units with up to three
axes. An optional beam calculated module allows
the determination of the measuring
points due to curved windows |
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