CN205300605U

CN205300605U - Laser swinger NULL device

Info

Publication number: CN205300605U
Application number: CN201620023759.6U
Authority: CN
Inventors: 邓明轩
Original assignee: SUZHOU FUKUDA LASER PRECISION INSTRUMENT CO Ltd
Current assignee: SUZHOU FUKUDA LASER PRECISION INSTRUMENT CO Ltd
Priority date: 2016-01-12
Filing date: 2016-01-12
Publication date: 2016-06-08
Anticipated expiration: 2026-01-12

Abstract

The utility model relates to an occupy the place little, do not need every day calibration, stable, laser swinger NULL device that electrical error of null position is littleer, including CCD camera, display and automatic level, the CCD camera is connected with the display, and automatic level and CCD camera connection, automatic level include casing, objective and graticule, and the casing front end is located to objective, and the graticule is located shell backend and is located between casing and the CCD camera.

Description

Geoplane accuracy measuring device

Technical field

This utility model relates to a kind of accurate measuring technique, particularly relates to a kind of Geoplane accuracy measuring device.

Background technology

Geoplane is to provide the instrument in horizontal laser light datum line/face, and the precision in these horizontal laser light datum line/faces is the important technology index of Geoplane, needs through careful adjustment, measurement so that it is precision is in the scope of regulation before dispatching from the factory. The method of horizontal accuracy is measured by current manufacturer generally two kinds:

Method 1: arrange near point, far point target, beats the distance of the difference in height near, far point target and two targets according to laser rays and can calculate laser rays and deviate horizontal inclination angle (i.e. instrument horizontal accuracy);

Method 2: using collimator to measure, laser, from the objective lens entrance of collimator, images on the graticle of collimator, the angle of this imaging deviation graticle zero-bit and accuracy of instrument can pass through to read graticle in the display through CCD imaging.

The shortcoming of above method 1 is to need bigger place, is generally guarantee certainty of measurement, and remote anomalistic distance is advisable at about 30 meters; Method 2 advantage is to need place less, shortcoming is the variations in temperature due to workshop, installs the factor impacts such as pedestal change, collimator tube reticle zero-bit often changes, it is necessary to often (every day) is with electronic theodolite or level gauge calibration, adds and measures the time prepared.

Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of Geoplane accuracy measuring device so that it is have more the value in industry.

Utility model content

For solving above-mentioned technical problem, the Geoplane accuracy measuring device that the purpose of this utility model is to provide that a kind of occupied ground is little, need not calibrate every day, stablizes, the error of zero is less.

Geoplane accuracy measuring device of the present utility model, including CCD camera, display and automatic compensated level, described CCD camera is connected with described display, described automatic compensated level is connected with described CCD camera, described automatic compensated level includes housing, object lens and graticle, housing forward end is located at by described object lens, and described graticle is located at housing rear end and between described housing and described CCD camera.

Further, described graticle being carved with cross hairs, described cross hairs includes horizontal line and vertical line.

Further, described vertical line is provided with some equidistant equally distributed horizontal grooves.

Further, the pixel of described CCD camera is more than or equal to 2,000,000.

Further, the adjacent distance corresponding angle between described horizontal groove is 20��30 seconds.

By such scheme, this utility model at least has the advantage that

This utility model advantage is in that occupied ground is less, benchmark zero-bit be calibrated after by automatic compensated level self leveling, the error of zero (i.e. the i angle error of automatic compensated level) is little, and stable not easily changes, it is not necessary to every day calibrates; Even if installing pedestal and temperature changing, the zero-bit change that it causes is very little, it is possible to ignore.

Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing describe in detail as after.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model Geoplane accuracy measuring device;

Fig. 2 is the part groove schematic diagram of the graticle in this utility model;

Fig. 3 is this utility model schematic diagram when Laser Measurement scanner precision;

The image schematic diagram that when Fig. 4 is this utility model Laser Measurement scanner precision, display shows.

Detailed description of the invention

Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail. Following example are used for illustrating this utility model, but are not limited to scope of the present utility model.

Referring to Fig. 1, the Geoplane accuracy measuring device described in this utility model one preferred embodiment, including CCD camera 2, display 4 and automatic compensated level 1, CCD camera 2 is connected with display 4, and automatic compensated level 1 is connected with CCD camera 2; In order to absorb the image of groove on graticle and laser rays simultaneously, automatic compensated level 1 includes housing (not shown), object lens 11 and graticle 12, housing forward end is located at by object lens 11, graticle 12 is located at housing rear end and between housing and CCD camera 2, so, after CCD camera follows graticle closely, it is possible to obtain the image of groove and laser rays simultaneously, and image on display.

In Fig. 1,1 is automatic compensated level, 11 is the object lens of automatic compensated level, 12 is the graticle of automatic compensated level 1, the laser rays imaging converging to graticle 12 through object lens 11 that groove on graticle 12 and scanner are sent by CCD camera 2, is exported the figure demonstrating division of the graticule and laser rays to display 4 by video line 3; It should be noted that, automatic compensated level is not also applied to the measure of precision of Geoplane by prior art, and the graticle of existing automatic compensated level does not have angle groove, graticle has been improved by this utility model, graticle part groove figure after improvement is shown in Fig. 2, being carved with the line segment that some stripe pitch are equal in Fig. 2 in the vertical direction, often the spacing of adjacent two line segments represents certain angle value.

Fig. 3 is this utility model schematic diagram when Laser Measurement scanner precision, wherein 5 is measured laser scanner, 51 is its laser rays sent, inject after measurement apparatus object lens 11 by CCD camera 2 imaging, it is connected to display 4 by video line 3, can be seen that the angle value of (estimating) laser rays deviation benchmark 0 (crosshair cross point is 0) on the display screen. The image schematic diagram that when Fig. 4 is this utility model Laser Measurement scanner precision, display shows, in figure, 52 is the image space of laser rays, deviates the lattice number of level 0 it is estimated that accurate angle according to the centrage of laser rays.

In order to the convenient laser rays that reads deviates horizontal accurate angle, graticle 12 being carved with cross hairs, cross hairs includes horizontal line 6 and vertical line 7, and vertical line 7 is provided with some equidistant equally distributed horizontal grooves 8; So, the lattice number of equidistant equally distributed horizontal groove zero-bit is deviateed by reading laser rays, it is possible to accurately read laser rays and deviate horizontal angle.

Clear in order to ensure the groove that obtains over the display and laser rays image, the pixel of CCD camera 2 is more than or equal to 2,000,000; So, CCD camera can be converted into digital signal optical image, and the pixel count of CCD camera is more high, and the screen resolution of its offer is also more high.

In order to convenient estimation laser rays deviates the angle value that baseline is corresponding in the display, the adjacent distance corresponding angle between horizontal groove 8 is 20��30 seconds; It should be noted that the distance corresponding angle between adjacent horizontal groove is too big, the angular error of estimation is too big, and the adjacent distance corresponding angle between horizontal groove is too little, then need to improve incisure density, it has not been convenient to read.

The above is only preferred implementation of the present utility model; it is not limited to this utility model; should be understood that; for those skilled in the art; under the premise without departing from this utility model know-why; can also making some improvement and modification, these improve and modification also should be regarded as protection domain of the present utility model.

Claims

1. Geoplane accuracy measuring device, including CCD camera, display and automatic compensated level, it is characterized in that: described CCD camera is connected with described display, described automatic compensated level is connected with described CCD camera, described automatic compensated level includes housing, object lens and graticle, housing forward end is located at by described object lens, and described graticle is located at housing rear end and between described housing and described CCD camera.

2. Geoplane accuracy measuring device according to claim 1, it is characterised in that: being carved with cross hairs on described graticle, described cross hairs includes horizontal line and vertical line.

3. Geoplane accuracy measuring device according to claim 2, it is characterised in that: described vertical line is provided with some equidistant equally distributed horizontal grooves.

4. Geoplane accuracy measuring device according to claim 1, it is characterised in that: the pixel of described CCD camera is more than or equal to 2,000,000.

5. Geoplane accuracy measuring device according to claim 3, it is characterised in that: the adjacent distance corresponding angle between described horizontal groove is 20��30 seconds.