SU974123A1 - Bilateral sighting extension - Google Patents

Description

- (54) BILATERAL VISATION TIP

The invention relates to a measurement technique, in particular to a geodetic instrument making and can be used in geometric leveling.

Levels are known that are provided with an ocular on the top of the telescope, which allow taking readings on the rails without changing the position of the observer relative to the instrument. The use of such devices helps to reduce labor costs by laying high-altitude 1J-moves.

In the precision level N1 002, the ocular p for these purposes is made rotatable 2.

The same constructive solution is approximately in the level of technical accuracy 3.

A disadvantage of such devices is the need to set the sighting beam at a lower level than conventional levels. This leads to a decrease in advance when laying high-altitude moves.

In order to be able to take estimates for the rear and front rails in one position of the observer without reducing the height of the sighting beam, a two-sided hiv nozzle was proposed;

zirani This attachment is used in levels with a periscopic telescope and provides alternate sightings on the rear and front slats 4.

All of these devices do not allow simultaneous sighting on two slats.

Simultaneous sighting on two

10 slats are possible with the help of a level with a prism a cube above the viewing tube 5.

However, the use of a traditional-shaped telescope degrades the operating characteristics of this device and eliminates the possibility of taking readings on the rear rail mounted in the alignment with the level.

The attachment onto the periscopic telescope of the level, containing a body, inside which there is an optical system with adjusting wedges and aiming, is also chosen as a prototype.

25 device attached to the housing. The optical system is made of a turning rectangular prism with three reflecting edges, one of which is located at an angle of 45 to /

thirty . edges perpendicular to the telescope's sighting axis. The nozzle allows you to simultaneously take readings on two laths located outside of (6). . The nozzle is known to project in the field of view of a pipe of the level of direct and rear rails, mutually deployed by 180. This reduces the ease of taking rails and may cause gross errors when determining elevations on unstable soils. The purpose of the invention is to improve the accuracy and convenience of the removal of samples by rails. This goal is achieved by the fact that the optical system is two-sided. It is designed for a level with a periscopic telescope, which includes a case, the inside of which is an optical system with adjusting wings and a aiming device, horned on the case, made in the form of two prismatic ones. a block containing two rectangular ones, installed mutually perpendicularly, and in one of the blocks, a square located on its main plane parallel to the input beam has a lid on the hypotenuse face. FIG. 1 shows a nozzle, a vertical incision; in fig. 2 is the same horizontal section in FIG. Figure 3 shows the path of the rays in the optical system H, the bilateral sighting attachment includes body 1, rectangular prism 2, lower conical support 3, rectangular prism with a lid on a hypotonic face 4, upper conical support 5, clip b, upper prism 7 right a mono-prism 8, a tide 9 clips, a ball 10, protective glasses 1 and 12, a cartridge 13, a lead screw 14 and an optical adjustment wedge 15 and 16. The optical system of the nozzle consists of two prism blocks. One unit includes a rectangular prism with a lid on hypotenuse face 4 mounted against the objective lens of the telescope and a rectangular prism 2. The second prism unit consists of a rectangular prism 7, the main plane is oriented parallel to the main plane of the prism 4, and rectangular prisms 8. The main planes (i.e. the symmetry planes) of the lower prisms 2 and 8 are set perpendicularly to the main plane, the planes of the upper prisms 4 and .7. The input faces of the prism 4 and 7 are oriented in one direction. The prism 4 covers the half of the light aperture of the objective of the telescope of the level, and the vertical face of the prism 7 is the entrance face of the optical system of the attachment. The optical system of the nozzle is enclosed in a metal holder 6, the latter ensures the mutual immobility of the optical components (prism blocks) and can be rotated on bearing supports 3 and 5 around the vertical axis. The guide of the optical axis of the rear rail is carried out by rotating the aiming screw 14, which presses on the tide 9 of the yoke. An atron with a spring 13 rotates the holder b while unscrewing the guiding fault 14. The ball 10 serves to unload the vertical axis of rotation of the holder. The nozzle is mounted in front of the lens of the telescope of the level with a hole with a protective glass. 11. The hole with the protective glass 12 is the entrance for the rays giving the image of the front rail, and the hole with the adjustment wedges 15 and 16 is the entrance for the rays giving the image of the rear rail. The rims of the wedges 15 and 16 rotate during alignment. The telescope of the level with the attachment gives two images: one front rail, the other - the rear rail and, accordingly, two sight lines. rrvani. The images of the front and rear rails are turned unconverted to one another. That is, if, for example, the pipe of the level gives a direct image, then the image of the rear rail will also be direct. The 1c compensator level, provided with the proposed bilateral sighting attachment, in addition to the usual requirements for compensatory levels, should also satisfy the following conditions; the line of reverse sighting should be parallel to the line of direct sighting, the edges of the input faces of prisms 4 and 7 should be parallel to the axis of rotation of the holder c of the nozzle; the axis of rotation of the holder c of the nozzle should be parallel to the vertical axis of rotation of the level. A level with a nozzle that meets the specified requirements, in the working position, gives two horizontal sighting lines located at the same height. Working with a level provided with a nozzle consists of pointing the two slats with the help of targeting devices of the level and nozzle and simultaneously taking readings on the slats. Since the images of the back and front rails are unencumbered one against the other, and the lines of sight are on the same horizon, leveling is greatly simplified. This device is advisable to use when continuing leveling moves on terrain with unstable soil. The use of such nozzles reduces labor intensity.

leveling and increase productivity and accuracy of work when laying high-altitude moves in adverse conditions.

Claims (6)

Invention Formula A two-sided sighting attachment for a level with a periscopic telescope, comprising a housing, inside of which an optical system with adjustment wedges and an aiming device mounted on the housing are located, about which is | so that, in order to increase the accuracy and convenience of sampling through the rails, the optical system is made in the form of two prism blocks containing two rectangular prisms each installed mutually; diakrno, moreover, in one of the blocks, the prism, located by its main plane parallel to the input beam, has a crinkle on the hypotenuate face. Information sources, taken into account during examination 1. Cheremisin M.S., et al. Levels with compensators, M., Nedra, 1978, p. 32-45. 2. Geodesy and cartography, 1975, 11, p. 75-77. 3. Authors certificate of the USSR 362576, cl. G 01 C 9/12, 1974. 4. USSR author's certificate 266237, cl. G 01 S 9/00, 1970. 5. USSR author's certificate No. 152312, cl. G 01 C 5/00, 1961. 6. USSR author's certificate number 619793, cl. G 01 S 9/00, 24.05.76 . (prototype). .V4 X y- /. X x / / BUT R h..chiUch Fi-i.) f