Study on effect of strong electromagnetic interference of PTS facility on photonic Doppler velocimetry

Wang Guilin; Zhang Zhaohui; Sun Qizi; Yang Wenjie; Ji Ce; Feng Shuping

doi:10.11884/HPLPB201931.190186

Volume 31 Issue 10

Oct. 2019

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Wang Guilin, Zhang Zhaohui, Sun Qizi, et al. Study on effect of strong electromagnetic interference of PTS facility on photonic Doppler velocimetry[J]. High Power Laser and Particle Beams, 2019, 31: 103217. doi: 10.11884/HPLPB201931.190186

Citation:

Wang Guilin, Zhang Zhaohui, Sun Qizi, et al. Study on effect of strong electromagnetic interference of PTS facility on photonic Doppler velocimetry[J]. High Power Laser and Particle Beams, 2019, 31: 103217. doi: 10.11884/HPLPB201931.190186

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Study on effect of strong electromagnetic interference of PTS facility on photonic Doppler velocimetry

doi: 10.11884/HPLPB201931.190186

Key Laboratory of Pulsed Power, Institute of Fluid Physics, CAEP, P.O.Box 919-108, Mianyang 621999, China

Received Date: 2019-05-24
Rev Recd Date: 2019-08-28
Publish Date: 2019-10-15

Abstract

Abstract

Photonic Doppler velocimetry(PDV)is usually based on all-fiber mode, which is easy to operate and has become an important diagnostic technology for ultra-high pressure dynamic material properties experiments.The range and accuracy of velocity measurement are related to photoelectric converter and data acquisition instruments.When the optical signal reflected by the target returns to the photoelectric converter, the frequency of laser intensity is changed by Doppler effect.The PTS facility is an important platform for dynamic material properties experiments.The peak current is 5-8 MA and the 0-100%rise time is 300-750 ns.During the loading process, there is strong electromagnetic interference in the target chamber, whose frequency are 10-300 MHz.When the interference is coupled into the return optical signal, the velocity data will be covered.Using PTFE insulating film and conductive aluminium film coated velocity probe can suppress the interference of strong electromagnetic interference signal to optical signal, and greatly improve the validity of velocity measurement data.
- strong electromagnetic interference,
- photonic Doppler,
- PTS facility,
- frequency,
- velocity

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References(11)

References

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