超小型レーザドップラー3次元流速計
3D miniLDV システム
3D miniLDV システムは、3台のminiLDVプローブを、カスタムデザインのアライメントブラケットに搭載したプローブヘッドと、3台のプロセスエンジン、及び、3台のシステムを同期させ、3D速度を統計的に処理、計算を行う、3Dソフトウェアから成ります。
アライメントブラケットに搭載したプローブヘッド
システム全体
| Stereo PIV | 3D miniLDV | |
| Measurement field | Planar | Automated 2D or 3D profile; point-by-point in a plane or volume |
| Quantities measured | U, V, W, u', v', w' | U, V, W, u', v', w', u'v', u'w', v'w' |
| Mean velocity accuracy | 99.0% or better | 99.7% or better |
| Spatial resolution | Limited by camera, laser power, and field of view | As low as 20 microns |
| Maximum velocity range | Limited by field of view and inter-frame time | 500 m/sec (higher with modified electronics) |
| Maximum region of interrogation | 20× 20 cm or less for standard systems | Limited only by traverse total travel |
| Computer requirements | Fast processing, high-speed busses for acquisition, large hard disk arrays for storage | Modern processing (intensive processing done by Processing Engine), USB bus... hours of data storage in a typical notebook drive. |
| Modularity | Splits into two 2D systems (if user owns an extra laser) |
Splits into three fully independent 1D systems |
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