arc clinometer

См. также в других словарях:

• Ordnance QF 18 pounder — Australian gun crew in action in the Ypres sector, 28 September 1917 Type Field gun Place& …   Wikipedia

• Liquid capacitive inclinometers — are Inclinometers (or Clinometers)whose sensing elements are made with liquid capacitive technology; they are considered gravity based. The best way to understand how they work is to think of a disc like cavity that is half filled with a… …   Wikipedia

• Theodolite — A theodolite (IPA en|θiːˈɒdəlаɪt) is an instrument for measuring both horizontal and vertical angles, as used in triangulation networks. It is a key tool in surveying and engineering work, particularly on inaccessible grounds, but theodolites… …   Wikipedia

• Archaeoastronomy — (also spelled archeoastronomy) is the study of how peoples in the past have understood the phenomena in the sky, how they used phenomena in the sky and what role the sky played in their cultures. [Sinclair 2006:13] Clive Ruggles argues it… …   Wikipedia

• Indirect fire — means aiming and firing a projectile in a high trajectory without relying on a direct line of sight between the gun and its target, as in the case of direct fire. Aiming is performed by calculating azimuth and elevation angles, and may include… …   Wikipedia

• Abney level — noun a surveying instrument consisting of a spirit level and a sighting tube; used to measure the angle of inclination of a line from the observer to the target • Hypernyms: ↑surveyor s level * * * ˈabnē noun Usage: usually capitalized A… …   Useful english dictionary