ISO 7078:2020 pdf download Buildings and civil engineering works — Procedures for setting out, measurement and surveying — Vocabulary
3.4.24
position piece
ancillary equipment(3.1.9) to facilitate an accurate indication of a measuring point (3.6.50)
Nate 1 to entry: Examples of measuring points are corner points or points on the objects to be measured.3.4.25
optical micrometer
reading device which facilitates the improvement of the reading (3.1.16) accuracy
Note 1 to entry: A major application is the coincidence micrometer to optically read angles,distances and otherscales with a high accuracy.
[SOURCE:ISO 9849:2017,3.2.29.3]3.4.26
inclinometer
system for monitoring displacements across a measuring line by means of inclination measurements(3.6.34) in the field
Note 1 to entry: The system essentially consists of an instrument with one or more tilt sensors, a guide tube, ameans to measure the position of the instrument in the guide tube and a read-out device.
Note 2 to entry: Data from inclinometers require evaluation, which can be done using proprietary software orspreadsheets.
[SOURCE: ISO 18674-3:2017,3.1]3.4.27
laser measuring tool
measuring tool (3.1.11) that through the emission of light facilitates measurement (3.1.1) of the distancebetween the tool and the object
3.5 Measuring instruments and their parts3.5.1
telescope
measuring telescope
part of a measuring instrument (3.1.7) that consists of a magnifying optical device in which a linethrough the optical centre of the objective lens and the cross hairs define the line of sight
Note 1 to entry: It comprises essentially an objective, a focusing lens (3.5.18) with focusing drive, a reticule[3.5.17) and an adjustable eyepiece.
Note 2 to entry: In total stations, often,the electronics and other parts of an electro-optical distance meter [3.5.6)or other devices are placed in the telescope.
[SOURCE: ISO 9849:2017,3.2.38,modified — In Note 2 to entry, “electronic distance measurementdevice (EDM)” has been changed to “electro-optical distance meter”.]
3.5.2
level
levelling instrument
measuring instrument (3.1.7) for measuring differences in height (3.1.24)- by establishing horizontallines of sight, comprising as main components a telescope (3.5.i) which can be rotated on a vertical axis(3.5.15) and a facility for leveling (3.6.4) the line of sight
Note 1 to entry: It can be additionally fitted with a horizontal circle (3.5.22 ) and /or a parallel plate micrometer(3.5.23).The reticule (3.5.17) has sometimes stadia hairs for optical distance measurement (3.6.27).
[SOURCE: ISO 9849:2017,3.1.10, modified —The preferred term “levelling instrument” has been added;”measuring instrument” has added at the beginning of the definition; note 2 to entry has been omitted.J
3.5.3
water level
hydrostatic level
level(3.5.2) that consists of two or more glass tubes connected by flexible tubing filled with a fluidwhose surfaces in the glass tubes define a reference level [3.1.23]
Note 1 to entry: The glass tubes are usually provided with scales [3.3.1) or with sensors.
Note 2 to entry: In building used for simple work, such as establishing points of common level. In land surveying.for measuring the difference in height (3.1.24) between points located at opposite sides of a large expanse ofwater, for example lakes,rivers.
3.5.4
theodolitetransit
measuring instrument (3.1.7) for measuring horizontal directions and vertical angles (3.6.10), whosemain components are the horizontal circle (3.5.22) and the vertical circle inclusive reading (3.116)systems, the telescope(3.5.1) and the alidade inclusive the horizontal and vertical rotation axes
Note 1 to entry:The telescope can be rotated around the horizontal axis (3.5.14) and vertical axis (3.5.15).Note 2 to entry: A theodolite can also be used for optical distance measurement(3.6.27).
Note 3 to entry: A theodolite used in astronomical work is usually termed an astronomical theodolite or a transitinstrument.
[SOURCE: ISO 9849:2017,3.1.19,modified — “optical instrument” has been replaced by “measuringinstrument”.]
3.5.5
tachymetertacheometer
instrument for measuring horizontal directions, vertical angles (3.6.10) and distances[SOURCE:ISO 9849:2017,3.1.17]
3.5.6
electro-optical distance meterelectronic distance meter
EDM
measuring instrument (3.1.7) for measuring distances between the instrument and a reflective target(3.6.67),using various electro-optical techniques, visible light or infrared radiation as carrier wavesNote 1 to entry: The target can be a reflector or any other surface.
[SOURCE: ISO 9849:2017,3.1.3, modified —”measuring” has been added to the beginning of definition;Note 2 to entry has been omitted.]
3.5.7
tilting level
level (3.5.2) that has a tilting screw which enables the telescope (3.5.1) to be tilted on a pivot so as toobtain a levelled line of sight
3.5.8
automatic levelcompensator levelself-levelling levelpendulum level
level (3.5.2) that makes use of a tilt compensator in the form of a system of prisms to ensure that theline of sight is horizontal once the operator has roughly levelled the instrument
ISO 7078:2020 pdf download