Open Access Open Access  Restricted Access Subscription Access

Instrument for Lunar Seismic Activity Studies on Chandrayaan-2 Lander


Affiliations
1 Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
 

Instrument for Lunar Seismic Activity Studies (ILSA) is a science payload with the objective of studying seismic activities at the landing site of Vikram, the Lander of Chandrayaan-2. ILSA will be deployed to the lunar surface by a specially built mechanism. It is an indigenously developed instrument based on microelectro mechanical systems technology. High sensitivity silicon micro-machined accelerometer is the heart of the instrument that measures ground acceleration due to lunar quakes. The instrument has the capability of resolving acceleration better than 100 nano-g Hz–1/2 up to a range of 0.5 g over bandwidth of 40 Hz. This paper presents the basic concepts in the design, realization, characterization and the performance test results of the space qualified strong motion seismic sensors.

Keywords

Lunar Quakes, MEMS, Seismometer, Strong Motion Sensors.
User
Notifications
Font Size

  • Bulow, R. C. et al., New events discovered in the Apollo lunar seismic data. J. Geophys. Res., 2005, 110, E10003.
  • Yamada, R., The description of Apollo seismic experiments; www.darts.isas.jaxa.jp/planet.seismology.
  • Watters, T. R. et al., Shallow seismic activity and young thrust faults on the Moon. Nature Geosci., 2019, 12, 411–417; https://www.nature.com/articles/s41561-019-0362-2.pdf
  • Lognonne, P. et al., SEIS: insight’s seismic experiment for internal structure of mars. Space Sci. Rev., 2019, 215, 12; https:// doi.org/10.1007/s11214-018-0574-6
  • Measuring seismic activity on Venus: a real challenge; https://www.seis-insight.eu/en/public-2/planetary-seismology/venus
  • Hunter, G. et al., Development of a high temperature Venus seismometer and extreme environment testing chamber. International Workshop on Instrumentation for Planetary Missions, 2012.
  • Havskov, J. and Alguacil, G., Instrumentation in Earthquake Seismology, Springer, June 2002; doi:10.1007/978-3-319-21314-9, ISBN 1402029683.
  • Kumar, S., Design and Fabrication of Micromcahined Silicon Suspensions, Ph D thesis, Imperial College, London, 2007.
  • Kempe, V., Inertial MEMS Principles and Practice, Cambridge University Press.
  • Kulah, H. et al., Noise analysis and characterization of a sigmadelta capacitive microaccelerometer. IEEE J. Solid-State Circuits, 2006, 41(2), 352–361.
  • John, J. et al., Design and fabrication of silicon micro structure for seismometer, ISSS International Conference on Smart Materials, Structures and Systems, Bengaluru, 2014.
  • IEEE standard specification format guide and test procedure for linear single axis nongyroscopic accelerometers IEEE Std 1293, 1998 (R2008).

Abstract Views: 2799

PDF Views: 163




  • Instrument for Lunar Seismic Activity Studies on Chandrayaan-2 Lander

Abstract Views: 2799  |  PDF Views: 163

Authors

J. John
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
V. Thamarai
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
M. M. Mehra
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
Teena Choudhary
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
M. S. Giridhar
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
Ashwini Jambhalikar
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
Gogulapati Supriya
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
Gaurav Saxena
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
K. V. Shila
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
B. Ramesh
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
T. K. Pratheek
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
Deepak Kumar Sharma
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
R. Islam
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
P. Selvaraj
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
A. Kalpana
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
S. Ajith Kumar
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
K. V. Sriram
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India
A. S. Laxmiprasad
Laboratory for Electro-Optics Systems, Indian Space Research Organisation, Peenya 1st Stage, 1st Cross, Bengaluru 560 058, India

Abstract


Instrument for Lunar Seismic Activity Studies (ILSA) is a science payload with the objective of studying seismic activities at the landing site of Vikram, the Lander of Chandrayaan-2. ILSA will be deployed to the lunar surface by a specially built mechanism. It is an indigenously developed instrument based on microelectro mechanical systems technology. High sensitivity silicon micro-machined accelerometer is the heart of the instrument that measures ground acceleration due to lunar quakes. The instrument has the capability of resolving acceleration better than 100 nano-g Hz–1/2 up to a range of 0.5 g over bandwidth of 40 Hz. This paper presents the basic concepts in the design, realization, characterization and the performance test results of the space qualified strong motion seismic sensors.

Keywords


Lunar Quakes, MEMS, Seismometer, Strong Motion Sensors.

References





DOI: https://doi.org/10.18520/cs%2Fv118%2Fi3%2F376-382