SYSTEM DESCRIPTION 2 Gravimeter - 2 Altimeter
نویسندگان
چکیده
منابع مشابه
Field Tests of a Portable MEMS Gravimeter
Gravimeters are used to measure density anomalies under the ground. They are applied in many different fields from volcanology to oil and gas exploration, but present commercial systems are costly and massive. A new type of gravity sensor has been developed that utilises the same fabrication methods as those used to make mobile phone accelerometers. In this study, we describe the first results ...
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Inertial navigation systems and gravimeters are now routinely used to map the regional gravitational quantities from an aircraft with mGal accuracy and a spatial resolution of a few kilometers. However, airborne gravimeter of this kind is limited by the inaccuracy of the inertial sensor performance, the integrated navigation technique and the kinematic acceleration determination. As the GPS tec...
متن کاملA Comparison of Stable Platform and Strapdown Airborne Gravity
To date, operational airborne gravity results have been obtained using either a damped two-axes stable platform gravimeter systems such as the LaCoste and Romberg (LCR) S-model marine gravimeter or a strapdown inertial navigation system (INS), showing comparable accuracies. In June of 1998 three flight tests were undertaken which tested a LCR gravimeter and a strapdown INS gravity system side-b...
متن کاملEnvisat Ra-2: Potential for Land Topographic Mapping
The ERS-1 and ERS-2 missions have generated a huge database of returns from the earth's land surfaces. The inclusion of an ice mode has allowed, for the first time, detailed height information to be obtained over much of the complex topography overflown by these missions. However, the inability of the altimeter to maintain lock over extreme terrain has constrained to some extent the scope of la...
متن کاملOptical system design and integration of the mercury laser altimeter.
The Mercury Laser Altimeter (MLA), developed for the 2004 MESSENGER mission to Mercury, is designed to measure the planet's topography by laser ranging. A description of the MLA optical system and its measured optical performance during instrument-level and spacecraft-level integration and testing are presented.
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