English - English
Definition of an alidade in English English dictionary
- diopter
- alidade
- a surveying instrument used on a horizontal surface for basic mapping of a limited area (see: )
- Alidade
- surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles
- Alidade
- Instrument, or part of an instrument , for determining direction , either horizontal or vertical In its simplest form, a peepsight or telescope mounted on a straightedge and used for plotting directions graphically In such instruments as transits and theodolites, the alidade is the part containing the telescope and its attachments
- Alidade
- In plane tabling, a straight edge having a telescopic sight or other means of sighting parallel to it
- Alidade
- 1 A sighting device used to locate points in the field from which the survey drawing is plotted 2 The index of an astrolabe, quadrant or other graduated instrument, carrying the sights or telescope, and showing the degrees cut off on the arc of the instrument
- Alidade
- A stationary instrument, mounted on a stand, that measures the angle subtended at the stand by the horizon and an object in space The clinometer is a portable form of alidade frequently used with a ceiling projector to determine the height of clouds An alidade usually measures the elevation angle only; a theodolite measures azimuth as well
- Alidade
- A rule equipped with simple or telescopic sites and used for determination of direction (as part of an astrolabe)
- Alidade
- That part of a surveying instrument which consists of a sighting device and index, with accessories for reading and recording data A telescopic alidade is part of a theodolite or surveyor's transit, and when mounted on a straightedge, in conjunction with a plane-table, is used in topographic surveying (See theodolite and transit)
- Alidade
- A surveying instrument which uses a telescope and sighting line to transfer angles and alignments to a drawing board
- Alidade
- Upper part of a transit or a telescopic instrument used to take bearings
- Alidade
- An optical surveying instrument used along side a plane-table and stadia-rod to produce a detailed small-scale topographical map
- Alidade
- surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments
- alidade
- a sighting device used for measuring angles
- alidade
- The portion of a graduated instrument, as a quadrant or astrolabe, carrying the sights or telescope, and showing the degrees cut off on the arc of the instrument surveying instrument used with a plane table for drawing lines of sight on a distant object and for measuring angles surveying instrument consisting of the upper movable part of a theodolite including the telescope and its attachments
- alidade
- {i} tool used in topographic surveying; indicator on a plane table
Related Terms
an alidade
Hyphenation
an al·i·dadePronunciation
Resimler
History
Favorites