IPC 6 English version G01C !A-G01C 15/14

G01C-G01C01514

SECTION G– PHYSICS

G 01

MEASURING (counting G 06 M); TESTING

G 01 C

MEASURING DISTANCES, LEVELS, OR BEARINGS, FOR SURVEYING OR NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY (measuring dimensions or angles of objects G 01 B; measuring liquid level G 01 F; measuring intensity or direction of magnetic fields, other than the earth's field, in general G 01 R; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effect, propagation time, of radio waves, analogous arrangements using other waves G 01 S; optical systems therefor G 02 B; maps, globes G 09 B)

Notes

(1)

In this subclass, the following term is used with the meaning indicated:

–

"navigation" means determining the position and course of land vehicles, ships, aircraft, and space vehicles.

(2)

Attention is drawn to the Notes following the title of class G 01.

Measuring angles (in compasses G 01 C 17/00)

Theodolites

combined with cameras

Arrangements for reading scales

Sextants

including an artificial horizon (G 01 C 1/14 takes precedence; artificial horizons per se G 01 C 15/14)

with a stabilised mirror (tilt compensation in general G 12 B)

Periscopic sextants (periscopes in general G 02 B 23/08)

Measuring distances in line of sight; Optical rangefinders (tapes, chains, or wheels for measuring length G 01 B; coupling rangefinders with operating parts of photographic apparatus G 03 B)

Details

Adaptation of rangefinders for combination with telescopes or binoculars (rangefinders coupled with focusing arrangements of cameras G 03 B 13/20)

Use of electric means to obtain final indication

Use of electric radiation detectors

using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument

with monocular observation at a single point, e.g. coincidence type (G 01 C 3/20 takes precedence)

with binocular observation at a single point, e.g. stereoscopic type (G 01 C 3/20 takes precedence)

Measuring marks

with one observation point at each end of the base (G 01 C 3/20 takes precedence)

with adaptation to the measurement of the height of an object

using a parallactic triangle with variable angles and a base of fixed length at, near, or formed by, the object

using a parallactic triangle with fixed angles and a base of variable length in the observation station, e.g. in the instrument

using a parallactic triangle with fixed angles and a base of variable length at, near, or formed by, the object

with provision for reduction of the distance into the horizontal plane

with adaptation to the measurement of the height of an object, e.g. tacheometers

by focusing the object, e.g. on a ground glass screen

Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels (G 01 C 3/20, G 01 C 3/30 take precedence; tracing profiles G 01 C 7/00; levels indicating inclination at a single point G 01 C 9/00)

involving automatic stabilisation of the line of sight (regulation of direction in general G 05 D 3/00; tilt compensation in general G 12 B)

Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points

by using barometric means (barometers per se G 01 L)

Tracing profiles (by photogrammetry G 01 C 11/00)

of land surfaces

involving a vehicle which moves along the profile to be traced

of cavities, e.g. tunnels (survey of wells E 21 B 47/00)

Measuring inclination, e.g. by clinometers, by levels

Details

Transmission means between sensing element and final indicator for giving an enlarged reading

Electric or photoelectric indication or reading means

Means for compensating acceleration forces due to movement of instrument

by using rolling bodies

by using a single pendulum (plumb lines G 01 C 15/10)

movable in more than one direction

by using more than one pendulum

by using liquids

the indication being based on the inclination of the surface of a liquid relative to its container

with interconnected containers in fixed relation to each other

in closed containers partially filled with liquid so as to leave a gas bubble

Details

Mountings

Means for adjusting dimensions of bubble

Means for facilitating the observation of the position of the bubble, e.g. illuminating means

of the tubular type, i.e. for indicating the level in one direction only

of the spherical type, i.e. for indicating the level in all directions

11/

Photogrammetry; Photographic surveying (cameras combined with surveying instruments, e.g. with theodolite, G 01 C 1/00, G 01 C 3/00, G 01 C 5/00, G 01 C 9/00; surveying cameras G 03 B 37/00)

11/

Picture-taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures

11/

Interpretation of pictures

11/

by comparison of two or more pictures of the same area

11/

the pictures not being supported in the same relative position as when they were taken

11/

using computers to control the position of the pictures (computers per se G 06)

11/

the pictures being supported in the same relative position as when they were taken

11/

with optical projection (G 01 C 11/26 takes precedence)

11/

in a common plane

11/

involving scanning means

11/

in separate planes

11/

with mechanical projection (G 01 C 11/26 takes precedence)

11/

with optical-mechanical projection (G 01 C 11/26 takes precedence)

11/

using computers to control the position of the pictures (computers per se G 06)

11/

Special adaptation for recording picture point data, e.g. for profiles

11/

by triangulation

11/

Radial triangulation

11/

Aerial triangulation

13/

Surveying specially adapted to open water, e.g. sea, lake, river, canal (liquid level metering G 01 F; measuring liquid velocity G 01 P; determining existence or flow of underground water G 01 V)

15/

Surveying instruments or accessories not provided for in groups G 01 C 1/00 to G 01 C 13/00

15/

Means for marking measuring points

15/

Permanent marks; Boundary markers

15/

Surveyors' staffs; Movable markers

15/

Plumbing or registering staffs or markers over ground marks

15/

Plumb lines

15/

Instruments for setting out fixed angles, e.g. right angles

15/

Artificial horizons (tilt compensation in general G 12 B 5/00)

G01C 17/00 - G01C 25/00