Accurate and low-cost ENEA solar compass for precision metrology of true azimuth: instrumental and smart versions

S. Bollanti; F. Andreoli; L. Cafarella; D. De Meis; P. Di Lazzaro; D. Di Mauro; F. Flora; G. P. Gallerano; L. Mezi; D. Murra; L. Murra; D. Vicca; G. Vicoli; A. Zirizzotti

doi:10.1117/12.2555747

13 April 2020 Accurate and low-cost ENEA solar compass for precision metrology of true azimuth: instrumental and smart versions

S. Bollanti, F. Andreoli, L. Cafarella, D. De Meis, P. Di Lazzaro, D. Di Mauro, F. Flora, G. P. Gallerano, L. Mezi, D. Murra, L. Murra, D. Vicca, G. Vicoli, A. Zirizzotti

Author Affiliations +

Proceedings Volume 11352, Optics and Photonics for Advanced Dimensional Metrology; 1135216 (2020) https://doi.org/10.1117/12.2555747
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

The accurate determination of the azimuth of a given direction, e.g., the true (geographic) North, is of fundamental importance in many fields. Just as few examples, it guides buildings construction in civil engineering, supports environmental and cartographic surveys, allows the correct positioning and stability control of concentrating solar power plants, as well as of airport installations, provides the geographic North reference for geomagnetic measurements, contributes to the interpretation of the orientation choices of ancient constructions in archeoastronomy, can be the primary benchmark to calibrate other compasses or gyroscopes. When aiming at reaching azimuth measurements with accuracies well below 1°, magnetic compasses are unreliable: firstly, they indicate the magnetic North rather than the geographic one; secondly, they are heavily influenced by possible surrounding ferromagnetic items.

Conference Presentation

Citation Download Citation

S. Bollanti, F. Andreoli, L. Cafarella, D. De Meis, P. Di Lazzaro, D. Di Mauro, F. Flora, G. P. Gallerano, L. Mezi, D. Murra, L. Murra, D. Vicca, G. Vicoli, and A. Zirizzotti "Accurate and low-cost ENEA solar compass for precision metrology of true azimuth: instrumental and smart versions", Proc. SPIE 11352, Optics and Photonics for Advanced Dimensional Metrology, 1135216 (13 April 2020); https://doi.org/10.1117/12.2555747

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available