A proposed method for the measurement of multi-pulse thrust produced by a laser thruster with a polyvinylidene fluoride (PVDF) sensor

C. Y. Cui; Y. J. Hong; M. Wen; G. Q. He; J. F. Ye

A proposed method for the measurement of multi-pulse thrust produced by a laser thruster with a polyvinylidene fluoride (PVDF) sensor

C. Y. Cui, Y. J. Hong, M. Wen, G. Q. He, J. F. Ye

School of Astronautics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A system for testing the thrust loading process of a laser produced multipulse using a polyvinylidene fluoride (PVDF) sensor has been developed and demonstrated. The effect of laser pulse frequency on the impulse coupling coefficient, C_m, in laser propulsion was studied by analysing the characteristics of experimentally derived thrust curves. The results showed that there was sufficient time for air to enter the work space when the frequency of laser pulse was 10 Hz or less. Clear interference of the first pulse on those following ones was evident with pulse frequencies of 25 Hz and above. At 25 Hz and beyond the C_m will decrease without an inlet channel due to the inability of sufficient air to enter the work space in the reduced time available between laser pulses and provide a propellant. The knowledge gained from this work will be very instructive for the future design of the inlet channels of a laser thruster.

Original language	English
Pages (from-to)	363-379
Number of pages	17
Journal	Lasers in Engineering
Volume	19
Issue number	5-6
State	Published - 2010

Keywords

Laser propulsion
Laser thruster
Multi-pulse
Polyvinylidene fluoride (PVDF)
Thrust loading process

Cite this

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title = "A proposed method for the measurement of multi-pulse thrust produced by a laser thruster with a polyvinylidene fluoride (PVDF) sensor",

abstract = "A system for testing the thrust loading process of a laser produced multipulse using a polyvinylidene fluoride (PVDF) sensor has been developed and demonstrated. The effect of laser pulse frequency on the impulse coupling coefficient, Cm, in laser propulsion was studied by analysing the characteristics of experimentally derived thrust curves. The results showed that there was sufficient time for air to enter the work space when the frequency of laser pulse was 10 Hz or less. Clear interference of the first pulse on those following ones was evident with pulse frequencies of 25 Hz and above. At 25 Hz and beyond the Cm will decrease without an inlet channel due to the inability of sufficient air to enter the work space in the reduced time available between laser pulses and provide a propellant. The knowledge gained from this work will be very instructive for the future design of the inlet channels of a laser thruster.",

keywords = "Laser propulsion, Laser thruster, Multi-pulse, Polyvinylidene fluoride (PVDF), Thrust loading process",

author = "Cui, {C. Y.} and Hong, {Y. J.} and M. Wen and He, {G. Q.} and Ye, {J. F.}",

year = "2010",

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T1 - A proposed method for the measurement of multi-pulse thrust produced by a laser thruster with a polyvinylidene fluoride (PVDF) sensor

AU - Cui, C. Y.

AU - Hong, Y. J.

AU - Wen, M.

AU - He, G. Q.

AU - Ye, J. F.

PY - 2010

Y1 - 2010

N2 - A system for testing the thrust loading process of a laser produced multipulse using a polyvinylidene fluoride (PVDF) sensor has been developed and demonstrated. The effect of laser pulse frequency on the impulse coupling coefficient, Cm, in laser propulsion was studied by analysing the characteristics of experimentally derived thrust curves. The results showed that there was sufficient time for air to enter the work space when the frequency of laser pulse was 10 Hz or less. Clear interference of the first pulse on those following ones was evident with pulse frequencies of 25 Hz and above. At 25 Hz and beyond the Cm will decrease without an inlet channel due to the inability of sufficient air to enter the work space in the reduced time available between laser pulses and provide a propellant. The knowledge gained from this work will be very instructive for the future design of the inlet channels of a laser thruster.

AB - A system for testing the thrust loading process of a laser produced multipulse using a polyvinylidene fluoride (PVDF) sensor has been developed and demonstrated. The effect of laser pulse frequency on the impulse coupling coefficient, Cm, in laser propulsion was studied by analysing the characteristics of experimentally derived thrust curves. The results showed that there was sufficient time for air to enter the work space when the frequency of laser pulse was 10 Hz or less. Clear interference of the first pulse on those following ones was evident with pulse frequencies of 25 Hz and above. At 25 Hz and beyond the Cm will decrease without an inlet channel due to the inability of sufficient air to enter the work space in the reduced time available between laser pulses and provide a propellant. The knowledge gained from this work will be very instructive for the future design of the inlet channels of a laser thruster.

KW - Laser propulsion

KW - Laser thruster

KW - Multi-pulse

KW - Polyvinylidene fluoride (PVDF)

KW - Thrust loading process

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M3 - 文章

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SN - 0898-1507

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JO - Lasers in Engineering

JF - Lasers in Engineering

IS - 5-6

ER -

A proposed method for the measurement of multi-pulse thrust produced by a laser thruster with a polyvinylidene fluoride (PVDF) sensor

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