An advanced magnetometric system for precise measurements of the interplanetary and near earth magnetic fields
Abstract
A three-component flux-gate magnetometric system is described for precise magnetic field investigations in a wide dynamic range with a high resolution. To allow inflight measurements of the spacecraft stray field, the system contains two flux-gate sensor triads, located 5 and 7 m from the spacecraft body. The outer triad is supplied with a double flipper system, allowing zero-offset determination of all three sensors. A microprocessor controls all functions of the system and allows on-board processing of received data, including data reduction, event detection, ring-memory storage of preand post-event data, etc. Data are telemetered at a 1 vector/s rate during quiet periods and 8 vector/s in event periods. The measuring ranges are + or - 100 nT + or - 0.01 nT; + or - 1000 nT + or - 0.1 nT; + or - 8000 nT + or - 0.1 nT and + or 80,000 nT + or - 1 nT.
- Publication:
-
Stockholm International Astronautical Federation Congress
- Pub Date:
- October 1985
- Bibcode:
- 1985stoc.iafcT....A
- Keywords:
-
- Geomagnetism;
- Interplanetary Magnetic Fields;
- Magnetic Measurement;
- Magnetometers;
- Block Diagrams;
- Design Analysis;
- Microcomputers;
- Satellite-Borne Instruments;
- Spacecraft Instrumentation