IDIL Fibres Optiques developed the first industrial Photonic Doppler Velocimeter for shocks and detonic applications. This technology allows to measure unique or multiple speeds, in the range of 0 to 20 km/s with an excellent temporal resolution. A dedicated software, based on a Fourier Transform algorithm, allows a rapid visualization of the speed fields. With a 5U height, the compact and modular system allows the user to build its PDV system from 1 to 4 measurement channels.
This new system integrates some improvement such as : low velocity measurement option with a fixed shift frequency, red alignement laser directly integrated on each output, all parameters adjustable on touchscreen…
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|Photonic Doppler Velocimeter|
|Displacement interferometer||High dynamics (>27 dB)|
|Eye safety (1.55 μm), all fibered design||Minimum reflectance required -60 dB|
|Speed measurement : 0 to 20 km/s||High sensitivity (>50 dB)|
|Speed uncertainty : Δt Δv = 150 ns.m/s||Up to 4 measurement channels|
|(function of the width of the Fourier window analysis)||Ethernet interface|
|Speed uncertainty : +/- 3 m/s for 50 ns||Continuous or triggered mode|
|Speed uncertainty : +/- 0.5 m/s for 300 ns||Low heat deposition on sample|
|Time uncertainty : 200 ps on the raw signal,||-|
|5 ns on velocity after processing||Manufactured under CEA license|
The processing software allows : the visualisation of raw signals (bin, wfm, csv and most of native file of digitizer); Time-frequency treatment and display; Multi-speed visualisation and Automatic speed extraction.
The system contains : 1 mainframe with high power laser (up to 350mW by channel) and one reference laser; 4 slots for PDV measurement channel; 1 processing software; 1 flight case. (digitizer not provided)