ROMAP -
Lander-Magnetometer and Plasma Monitor
ROMAP (ROsetta Lander MAgnetometer and Plasma Monitor) consists of the Rosetta Lander-Magnetometer (ROLAND) and the Lander Plasma Monitor (SPM). The Fluxgate-Magnetometer, designed and built lead-managed by the Institute for Geophysics und extraterrestrial Physics, is situated in zhe center of the experiment. It consists of two entwined ringcores plus pick-up coils and Helmholtz coils for each sensor axis. With a weight of less than 40 g it can perform measurements betweenn +/- 2000nT with a resolution of 10 pT. The IWF (Graz) and the MPE Garching joined the development and construction of the magnetometer and its electronics.
ROMAP, click to enlarge.
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ROMAG: Parameter
| Sensor mass | 35 g |
| Sensor volume | 523 cm3 |
| Electronics mass | 150 g |
| Resolution | 10 pT |
| Dynamic range | 4000nT |
| Sensor noise (@1Hz) | 10pT/(Hz)1/2 |
| Bandwidth | 0 - 32Hz |
| Sample rate | [1; 64] vecs/s |
| Power (incl. plasmamonitor) | 1 W |
| Temperature range | -160 ... +120C |
| Time of operation | ~ Wochen |
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The plasma monitor, a cooperation between KFKI (Budapest),MPS (Katlenburg-Lindau) and IKI (Moskau), measures the electron and ion distribution in a wide energy range. Furthermore, a Penning sensor and a Pirani sensor for pressure measurements are available (10-8-10-3mbar respectively 10-3-10mbar). The electronics for both experiments are located inside the lander, the sensors, except for the pressure sensors,are mounted on a small boom.
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