scholarly journals A transportable cold atom inertial sensor for space applications

2017 ◽  
Author(s):  
R. Geiger ◽  
G. Stern ◽  
P. Cheinet ◽  
A. Bresson ◽  
A. Landragin ◽  
...  
Keyword(s):  
Inertial Sensor ◽  
Cold Atom ◽  
Space Applications

Continuous cold atom inertial sensor with 1 nrad.s^-1 rotation stability (Conference Presentation)

2016 ◽  
Author(s):  
Remi Geiger ◽  
Indranil Dutta ◽  
Denis Savoie ◽  
Bess Fang ◽  
Carlos Guarrido Alzar ◽  
...  
Keyword(s):  
Inertial Sensor ◽  
Cold Atom

Cold Atom Interferometer activities for measuring the Earth’s gravity field

2020 ◽  
Author(s):  
Luca Massotti ◽  
Olivier Carraz ◽  
Paolo Bensi ◽  
Roger Haagmans ◽  
Philippe Martimort ◽  
...  
Keyword(s):  
Gravity Field ◽  
Attitude Control ◽  
Inertial Sensor ◽  
Low Frequency ◽  
Cold Atom ◽  
Expected Improvement ◽  
Airborne Gravity ◽  
Integration Time ◽  
Low Frequencies ◽  
The Earth

<p>In the past decade, it has been shown that atomic quantum sensors are a newly emerging technology that can be used for measuring the Earth’s gravity field. Whereas classical accelerometers, based e.g. on capacitive sensing and electrostatic actuation, are limited by relatively high noise at low frequencies, Cold Atom Interferometers (CAI) can be highly accurate over the entire frequency range, which also has the benefit that they do not need any calibration phase. Several studies related to these new sensor concepts were initiated at ESA, mainly focusing on technology development for different instrument configurations (gravity gradiometers and  satellite-to-satellite ranging systems) and including validation activities, e.g. two successful airborne surveys with a CAI gravimeter. We will present the first conclusions of these different mission and instrument studies:</p><ul><li>The first airborne gravity survey during the ESA Cryovex/KAREN 2017 campaign using this technology was conducted by DTU and ONERA. The measurements did not show any drift and the accuracy was found to be less than 4 mGal at 11 km resolution. A second campaign has been conducted by ONERA and CNES in 2019 in the South of France and improved the accuracy by a factor 4, reaching classical airborne survey state-of the art performance.</li> <li>A first space quantum gravity mission concept is based on a gravity gradiometer that delivers a very high common mode rejection, greatly relaxing the drag-compensation requirements.</li> <li>The second concept is based on quantum accelerometers for correcting low frequency errors of electrostatic accelerometers that are used in a low-low satellite-to-satellite ranging concept in order to measure non-gravitational accelerations.</li> </ul><p>For both concepts we will present the expected improvement in measurement accuracy and in the derived Earth gravity field models, taking into account the different types of measurement (e.g. single axis vs. three axis, integration time, etc.) and different mission parameters (e.g. attitude control, altitude of the satellite, lifetime of the mission, etc.). A technology roadmap will be outlined for potential implementation of a quantum inertial sensor geodesy mission within 10-15 years.</p>

scholarly journals Continuous Cold-Atom Inertial Sensor with1  nrad/secRotation Stability

2016 ◽  
Vol 116 (18) ◽  
Author(s):  
I. Dutta ◽  
D. Savoie ◽  
B. Fang ◽  
B. Venon ◽  
C. L. Garrido Alzar ◽  
...  
Keyword(s):  
Inertial Sensor ◽  
Cold Atom

Reaching the quantum noise limit in a high-sensitivity cold-atom inertial sensor

2003 ◽  
Vol 5 (2) ◽  
pp. S136-S142 ◽  
Author(s):  
Florence Yver-Leduc ◽  
Patrick Cheinet ◽  
J r me Fils ◽  
Andr  Clairon ◽  
No l Dimarcq ◽  
...  
Keyword(s):  
Quantum Noise ◽  
Inertial Sensor ◽  
Cold Atom ◽  
High Sensitivity ◽  
Noise Limit

scholarly journals Six-Axis Inertial Sensor Using Cold-Atom Interferometry

2006 ◽  
Vol 97 (1) ◽  
Author(s):  
B. Canuel ◽  
F. Leduc ◽  
D. Holleville ◽  
A. Gauguet ◽  
J. Fils ◽  
...  
Keyword(s):  
Inertial Sensor ◽  
Cold Atom ◽  
Atom Interferometry

scholarly journals Cold-atom inertial sensor without deadtime

2016 ◽  
Author(s):  
B. Fang ◽  
I. Dutta ◽  
D. Savoie ◽  
B. Venon ◽  
C. L. Garrido Alzar ◽  
...  
Keyword(s):  
Inertial Sensor ◽  
Cold Atom

scholarly journals Laser-pumped and laser-cooled atomic clocks for space applications

1998 ◽  
Vol 16 (4) ◽  
pp. 627-639 ◽  
Author(s):  
Walter F. Buell
Keyword(s):  
Cold Atom ◽  
Coherent Population Trapping ◽  
Time Transfer ◽  
Trapped Atoms ◽  
Space Applications ◽  
Vapor Cell ◽  
Frequency Standards ◽  
Laser Pumping ◽  
Population Trapping ◽  
Optically Trapped

Highly stable atomic frequency standards are of increasing importance for a variety of space applications, ranging from communication to navigation and time transfer to tests of fundamental science. We present a discussion of the improvements possible with laser pumping of vapor cell clocks, including applying coherent population trapping (CPT) techniques. We also present our progress toward a cold atom clock based on magneto-optically trapped atoms for space applications.

4D printing technology, modern era: A short review

2020 ◽  
pp. 92-111
Author(s):  
Khodadad Mostakim ◽  
Nahid Imtiaz Masuk ◽  
Md. Rakib Hasan ◽  
Md. Shafikul Islam
Keyword(s):  
Smart Materials ◽  
Computer Aided Design ◽  
Short Review ◽  
Stimuli Responsive ◽  
4D Printing ◽  
Space Applications ◽  
Printing Technology ◽  
Practical Applications ◽  
Biomedical Technologies ◽  
Novel Material

The advancement in 3D printing has led to the rapid growth of 4D printing technology. Adding time, as the fourth dimension, this technology ushered the potential of a massive evolution in fields of biomedical technologies, space applications, deployable structures, manufacturing industries, and so forth. This technology performs ingenious design, using smart materials to create advanced forms of the 3-D printed specimen. Improvements in Computer-aided design, additive manufacturing process, and material science engineering have ultimately favored the growth of 4-D printing innovation and revealed an effective method to gather complex 3-D structures. Contrast to all these developments, novel material is still a challenging sector. However, this short review illustrates the basic of 4D printing, summarizes the stimuli responsive materials properties, which have prominent role in the field of 4D technology. In addition, the practical applications are depicted and the potential prospect of this technology is put forward.

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