The Jingwei instrument is an instrument that measures horizontal and vertical angles; it is designed according to the principle of angle measurement.Literally, this is a kind of instrument related to latitude and longitude. So how to buy the latitude and latitude instrument?How to maintain it?The following editors will answer you one by one.
Hiraiumi
The latitude and weft meter is a kind of earth measurement instrument. It has optical latitude and weft meter and electronic latitude and weft meter. It is the main instrument that measures the angle of orientation. It can measure horizontal angles, vertical angles and distances.The Jingwei Instrument is a commonly used engineering measurement instrument. You often see a tripod standing at the construction site. Some people are operating. There are optical latitudes and electronic latitudes.Nowadays, electronic latitude and weft meters are commonly used. Only you can set up a machine, set a reference point, read the number of readings, and then rotate to another measurement point. The angle between two points will be displayed on the instrument.If the horizontal angle and vertical angle cannot be measured, a ranging meter should be installed, or the station instrument must be installed. It is used to measure the distance through infrared reflection. The municipal engineering and engineering measurement line is commonly used, and the accuracy is accurate.Of course, the price is expensive. Generally, the domestic latitude and latitude instrument is about 7,000 yuan, the domestic station instrument is about 50,000 yuan, and the imported station instrument takes more than 100,000.When buying the latitude and weft meter, the accuracy of the angle measurement and the shortest vision. At present, the accuracy of the electronic and weft instrument is 2 seconds, and the shortest vision of the electrical meridian of New Beiguang is 1.5 meters;It is divided into positive and inverted statues.
How to use the latitude instrument
1) The tripod is adjusted to the length and suitable for the height of the operator. The instrument is fixed on the tripod, so that the base surface of the instrument is parallel to the top of the tripod.
2) Put the instrument dance on the measurement station. The vision is roughly in the middle, stepping on a stand on the foot, adjusting the optical pair of the middle instrument mirror (see the cross wire) and the material mirror (see the test site)Lifting a standing foot, swinging, left and right, the eye viewing the center instrument to make the cross -handed point reunited with the measurement site, stabilized and stepped on the solid foot.
3) Extending tripod legs Land flat and round level level
4) Putting the level of the level tube two fixed and flat spirals, and the level of level tube.
5) 90 degrees of the standard department of the flat transfer, use the third spiral level leveling level tube.
6) Check the optical pair in the middle. If there is a small amount of deviation, you can open the connection spiral translation base to make it accurately pair, tighten the connection spiral, and then check the standard air bubble.
Hitterian and weft instrument repair
1. The vertical axis rotates too tightly or cannot be rotated
The stop ring and the bearing cover have friction, and the position of the stop ring can be excluded by adjusting the position of the stop ring.Stop circulating rust, oil deficiency or oil pollution, and gray sand enter, and can be excluded through rust removal, refueling, and cleaning.Note that when refueling, just apply a thin layer on the surface of the friction, not to be added to avoid pollution of Chinese parts.When the vertical axis scratch or deformation, when the cleaning or refueling is still astringent, you can use a magnified mirror to check whether there are sand scratching traces of the friction surface. If you customize the HR favorite resume, you can use the silver sand paper above 800#or more.Xiu Ping, then clean and refuel.
2. The horizontal axis rotation is not uniform
The horizontal axis rotation is not uniform, especially when the elevation angle is tight or positive, and the tightness is inconsistent.This phenomenon occurs mainly three cases:
① The individual screws of the fixed bearing are not tight and the position is incorrect or deformed.Check the screws and tighten them.
② The right end of the horizontal axis is uneven.This situation can be repaired.
③ The horizontal axis is lacking oil or oil pollution, and the ring is dirty, oil deficiency or does not cooperate.This situation needs to be cleaned, refueled or grinded to be eliminated.
3. The horizontal axis loose
The reason for this phenomenon is that the thickness size of the pads at the right end of the horizontal axis is too small.This phenomenon needs to be replaced or foil.
4. Stop moving failure
The stop wrench is loose or the position is not adjusted.Elimination method: spin pine fixed spiral, adjust the stop screw, so that after the standard department works, place the wrench on the stop position, and tightly fix the screw.If the dynamic top is too short, it is necessary to change the partner visitor to eliminate it.The shortage of oil or dryness is needed to clean or refuel to eliminate the failure.The elasticity of the stoppage is insufficient, and the stoppage is slightly curved to increase the elasticity to eliminate the failure.
5. Unexpected or failure when the micro -movement spiral rotation
The micro -motion spiral is unevenly loose, and it can be ruled by the correction of the tights.The micro -movement spring is too hard or too soft. It can adjust the spring. When it is too soft, pull the spring to increase the elasticity; when it is strong, compress the spring to reduce the elasticity or replace the spring.The lack of oil, dryness or oil in micro -motion spirals requires cleaning and lipid visitors to eliminate failure.The micro -screw is bent, which requires correction screws to eliminate failure.The shaft system is too tight and the axis system needs to be maintained.

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