论文信息 - Wireless seismometer for venus

Wireless seismometer for venus

Measuring the seismic activity of Venus is critical to understanding its composition and interior dynamics. Because Venus has an average surface temperature of 462°C and the challenge of providing cooling to multiple seismometers, a high temperature, wireless sensor using a wide bandgap semiconductor is an attractive option. This paper presents progress towards a seismometer sensor with wireless capabilities for Venus applications. A variation in inductance of a coil caused by a 1 cm movement of a ferrite probe held in the coil and attached to a balanced leaf-spring seismometer causes a variation of 80 MHz in the transmitted signal from the oscillator/sensor system at 420°C, which correlates to a 10 kHz/mm sensitivity when the ferrite probe is located at the optimum location in the coil.

[1] Geoffrey A. Landis,et al. Robotic exploration of the surface and atmosphere of Venus , 2006 .

[2] V. Dehant,et al. The deep interior of Venus, Mars, and the Earth: A brief review and the need for planetary surface-based measurements , 2011 .

[3] John S. Lewis,et al. An estimate of the surface conditions of Venus , 1968 .

[4] F. Sohl. 10.02 – Interior Structure, Composition, and Mineralogy of the Terrestrial Planets , 2015 .

[5] E. Wielandt,et al. The leaf-spring seismometer: Design and performance , 1982 .

[6] G. E. Ponchak,et al. High temperature, wireless seismometer sensor for Venus , 2012, 2012 IEEE Topical Conference on Wireless Sensors and Sensor Networks.