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5 Beam 112mm probe

5 Beam 112mm probe
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Applications • Measurement of 3 velocity components in internal combustion engine cylinders • Measurement of 3 velocity components in gas turbines • Measurement of 3 velocity components in water through a plane window, or with submerged optics Features • Maintenance free fibres due to fibre connectors with sealed fibre ends • Watertight design • Very small measurement volume due to expanded beams and large beam spacing • Adjustable beam pointing Introduction Alignment of the optics for measurement of 3 velocity components is simplified using a single optical probe. Measurements can be made in applications with limited optical access, such as internal combustion engines and gas turbines. For measurements in water through a window, the use of a single probe perpendicular to the window eliminates alignment problems due to refraction effects in the water. The probe is watertight and can be aligned when submerged. Description The probe has adjustable beams. This makes it possible to compensate for aberrations due to imperfect windows. The beams are expanded within the probe in order to obtain a small measurement volume. The five exiting beams form three fringe patterns allowing for measurement of all three velocity components. The small angle between the outer beams allows for measurements through small windows.

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FiberFlow Probe, 112 mm diameter, 5 beams Product Information Measurement volume data Focal length [mm] Specifications Position of beams at the front lens, and definition of coordinates The probe has five exiting beams in an arrangement as shown above. The centre beam combined with the blue and green beams form two fringe patterns at an angle to each other. Two velocity components in the horizontal plane, u1 and u2, are measured with this. The angle between the 2 green laser beams and between the two blue violet beams is called . The violet beam pair measures the vertical component. The...

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5 Beam 112mm probe 2Pages

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5 Beam 112mm probe
2Pages