Loading...
Please wait, while we are loading the content...
Similar Documents
Spinning disk calibration method and apparatus for laser doppler velocimeter
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1986 |
| Description | A method and apparatus for calibrating laser Doppler velocimeters having one or more intersecting beam pairs are described. These velocimeters measure fluid velocity by observing the light scattered by particles in the fluid stream. Moving fluid particulates are simulated by fine taut wires that are radially mounted on a disk that is rotated at a known velocity. The laser beam intersection locus is first aimed at the very center of the disk and then the disk is translated so that the locus is swept by the rotating wires. The radial distance traversed is precisely measured so that the velocity of the wires (pseudo particles) may be calculated. |
| File Size | 545385 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860023225 |
| Archival Resource Key | ark:/13960/t0dv6dw9c |
| Language | English |
| Publisher Date | 1986-07-15 |
| Access Restriction | Open |
| Subject Keyword | Laser Doppler Velocimeters Rotating Disks Calibrating Flow Measurement Photometers Particulates Flow Velocity Velocity Measurement Wire Fiber Optics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
