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Mar 2010

Volume 81, Issue 3, Articles (03xxxx)

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Rev. Sci. Instrum. 81, 031101 (2010); http://dx.doi.org/10.1063/1.3327886 (14 pages)

Majid Nabavi

For full-field unsteady pressure measurement, pressure sensitive paint (PSP) is an attractive technique due to its relatively fast response and high spatial resolution. The output of the system is a color image representing the pressure variations.

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back to top Gravity; Geophysics; Astronomy and Astrophysics

Polyvinylidene fluoride dust detector response to particle impacts

D. James, V. Hoxie, and M. Horanyi

Rev. Sci. Instrum. 81, 034501 (2010); http://dx.doi.org/10.1063/1.3340880 (8 pages) | Cited 2 times

Online Publication Date: 29 March 2010

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Polyvinylidene fluoride (PVDF) dust detectors have flown on many space missions since their first use on the Vega 1 and 2 spacecraft. The fundamental operating principle of these detectors is the production of a charge upon impact by a hypervelocity dust particle. This measured signal, N, depends on the speed, v, and mass, m, of the particle. The relationship between N, v, and m was first empirically derived by Simpson and Tuzzolino. All of the PVDF dust instruments prior to the Student Dust Counter on the New Horizons mission use their formula for the calibration of the detectors. This paper provides additional dust impact calibration data, proposes a modification in the exponents for m and v, and investigates the relationship between detector temperature and detector signal.
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95.30.Wi Dust processes (condensation, evaporation, sputtering, mantle growth, etc.)
07.07.Df Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing
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