CN101464163B - Straightness detecting method for platform normal point used for total station instrument check - Google Patents
Straightness detecting method for platform normal point used for total station instrument check Download PDFInfo
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- CN101464163B CN101464163B CN2007101725164A CN200710172516A CN101464163B CN 101464163 B CN101464163 B CN 101464163B CN 2007101725164 A CN2007101725164 A CN 2007101725164A CN 200710172516 A CN200710172516 A CN 200710172516A CN 101464163 B CN101464163 B CN 101464163B
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Abstract
The invention discloses a method of testing the flatness of standard points on a platform used for the calibration of a total station. The invention comprises a laser emitter, a laser receiver and a plurality of to-be-tested standard points positioned on the platform. The method is characterized in that the laser emitter and the laser receiver which are arranged by means of forced centering are utilized for repeatedly determining the coordinates of all the to-be-tested standard points on the platform, calculating the absolute deviation value of each to-be-tested standard point in both the direction vertical to laser ray and the direction parallel to the laser ray, and adjusting each to-be-tested standard point based on the absolute deviation value thereof until all the to-be-tested standard points align and conform to the accuracy as required. The method can conveniently and precisely determine the flatness of the standard points on the platform, fully satisfy the demands of enhancing the flatness measurement accuracy for the platform used for detecting the periodic error of the total station, and improve the measurement efficiency.
Description
Technical field
The present invention relates to the calibration method of total powerstation verification, relate in particular to the flatness calibration method of a kind of total powerstation verification with platform with device
Background technology
Total powerstation is widely used a kind of measurement electronic device in the industry, and its range finding, angle measurement and microprocessor are combined into an integral body, can write down, store and possess some fixing calculation procedure automatically.Total powerstation can directly be measured the angle and distance relation between impact point and instrument rotating shaft center, therefore is made up of stadimeter, transit and data processing module from structure.For guaranteeing the measuring accuracy of total powerstation, need carry out verification to the every functional parameter of total powerstation, its main content is: the verification of total powerstation electro-optical distance measurement part.The verification of circular error is an important content of total powerstation verification work in the electro-optical distance measurement part, is the important indicator of range finding stability and accuracy.The total powerstation range measurement system adopts the phase measurement method to find range, although strict isolation is arranged between the emission coefficient of optics and electronics and the receiving system, has to harass with electricity with light frequently toward contact and harasses existence.The reflection of the inside of the light leak of interior light path, the coaxial instrumental optics of transmitting-receiving system, and during the range finding operation has unnecessary reflecting body etc. will cause with light frequently in the emission light beam and harasses.It then mainly is because institutes such as spatial impression is answered, utility power cause that electricity is harassed.Because frequency light, electricity are harassed the existence of signal together, caused the circular error of total powerstation range finding.
At present generally adopt the platform method to carry out, meet flatness and spacing required standard point is tested the circular error that characterizes total powerstation to some on the platform by total powerstation to the calibrating of total powerstation circular error; So the accurate demarcation to standard point position flatness and spacing is the key link that guarantees to measure reliability in the platform method.
The flatness of each standard point of circular error calibrating platform and spacing stated accuracy require all very high, and the indium steel ruler is mainly adopted in current demarcation for spacing, measures when environment temperature changes among the result to add temperature compensation; Mainly adopt transit to throw line for the demarcation of platform each point flatness and collimate or draw the wire alignment method, mainly be to adopt transit or wire rope to set up a datum line, each standard point is with respect to the actual deviation of datum line on the measuring table, then according to the flatness between measured value adjustment standard point, because factor affecting such as be subjected to that least count scale and telescope are sighted, measuring accuracy is subjected to certain restriction, and precision adjustment difficulty is big, efficient is low.
Summary of the invention
Technical matters to be solved by this invention provides the flatness calibration method of a kind of total powerstation verification with platform standard point, and it can measure the flatness of standard point on the platform easily and accurately.
For solving the problems of the technologies described above, total powerstation verification of the present invention comprises generating laser, laser pickoff with the flatness calibration method of platform standard point and is positioned at standard point some to be measured on the platform, and this method comprises the steps,
Step 6, horizontal direction adjustment: the grid deviation value of each standard point to be measured that obtains according to step 5; The horizontal direction deviate of twice acquisition in front and back is averaged, can obtains the absolute deviation value of each standard point to be measured with respect to the laser beam vertical plane; Adjust the horizontal direction of standard point to be measured according to this absolute deviation value, all be positioned on the vertical plane of laser beam until all standard points to be measured.
Because total powerstation verification of the present invention has been adopted technique scheme with the flatness calibration method of platform standard point, promptly utilize generating laser and laser pickoff repeatedly to measure each standard point coordinate to be measured on the platform, and calculate each standard point to be measured respectively in the vertical direction of laser beam and the absolute deviation value of horizontal direction, on this basis each standard point to be measured is adjusted, all be located along the same line and meet the certain precision requirement until all standard points to be measured; This method can be measured the flatness of standard point on the platform easily and accurately, has improved measuring accuracy and efficiency of measurement.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the synoptic diagram of total powerstation verification of the present invention with the flatness calibration method of platform standard point.
Embodiment
As shown in Figure 1, total powerstation verification of the present invention comprises generating laser 1, laser pickoff 2 with the flatness calibration method of platform standard point and is positioned at standard point some to be measured on the platform 5, and this method comprises the steps,
Step 6, horizontal direction adjustment: the grid deviation value of each standard point to be measured that obtains according to step 5; The horizontal direction deviate of twice acquisition in front and back is averaged, can obtains the absolute deviation value of each standard point to be measured with respect to the laser beam vertical plane; Adjust the horizontal direction of standard point to be measured according to this absolute deviation value, all be positioned on the vertical plane of laser beam until all standard points to be measured.
Because the precision of laser resolution is 0.001mm in the straight line flatness measurement, and the installation accuracy of standard point to be measured is all finished in the mode of forcing centering on all platforms, so can being controlled at, the precision of single-point adjustment forces in the accuracy of alignment scope, satisfy the needs of total powerstation circular error calibrating platform flatness measurement fully, and efficiency of measurement is greatly improved.
Claims (1)
1. a total powerstation verification is with the flatness calibration method of platform standard point, comprises generating laser, laser pickoff and is positioned at standard point some to be measured on the platform, it is characterized in that: this method comprises the steps,
Step 1, the laser emission point place outside described platform adopt and force the centering mode to set up generating laser, and the central horizontal projecting plane of generating laser overlaps with emission pier central point, is controlled in the 0.1mm precision; The long leveling bubble of adjusting generating laser guarantees that generating laser is placed in the middle along the platform direction;
Step 2, described laser pickoff is placed on the special tooling, special tooling also is a pressure centralising device, and the center of special tooling is with physical centre's unanimity of laser pickoff;
Step 3, laser pickoff is placed apart from a generating laser standard point to be measured place farthest, the laser beam of adjusting generating laser is sighted the Target Center of laser pickoff, opens the laser pickoff target coordinate origin of laser pickoff is arranged on this standard point to be measured;
Step 4, then laser pickoff is advanced and is placed on each standard point to be measured place to the generating laser direction successively, note the coordinate position of described each standard point to be measured place laser pickoff, determine each standard point to be measured with respect to the side-play amount of line between the standard point to be measured farthest on Laser emission center and the platform, comprise vertical direction and horizontal direction;
Step 5, vertical direction adjustment: the base of generating laser is settled again, guaranteed that the position that its installation position is settled with step 1 differs 180 degree, adjusts the long leveling bubble level of generating laser simultaneously; Repeating step two obtains the grid deviation value of each standard point to be measured to the measuring process of step 4; The vertical direction deviate of twice acquisition in front and back is averaged, can obtains the absolute deviation value of each standard point to be measured with respect to the laser beam surface level; Choose peak for adjusting other each points of benchmark bed hedgehopping, make all standard points to be measured all be positioned on the surface level of laser beam;
Step 6, horizontal direction adjustment: the grid deviation value of each standard point to be measured that obtains according to step 5; The horizontal direction deviate of twice acquisition in front and back is averaged, can obtains the absolute deviation value of each standard point to be measured with respect to the laser beam vertical plane; Adjust the horizontal direction of standard point to be measured according to this absolute deviation value, all be positioned on the vertical plane of laser beam until all standard points to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101725164A CN101464163B (en) | 2007-12-18 | 2007-12-18 | Straightness detecting method for platform normal point used for total station instrument check |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101725164A CN101464163B (en) | 2007-12-18 | 2007-12-18 | Straightness detecting method for platform normal point used for total station instrument check |
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| Publication Number | Publication Date |
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| CN101464163A CN101464163A (en) | 2009-06-24 |
| CN101464163B true CN101464163B (en) | 2011-08-03 |
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| CN2007101725164A Expired - Fee Related CN101464163B (en) | 2007-12-18 | 2007-12-18 | Straightness detecting method for platform normal point used for total station instrument check |
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Cited By (1)
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|---|---|---|---|---|
| CN102692185A (en) * | 2012-06-13 | 2012-09-26 | 东南大学 | Rapid detection method for ballastless track boards of high-speed railway |
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| CN102128635A (en) * | 2010-11-23 | 2011-07-20 | 苏州科技学院 | System for automatically detecting periodic error of photoelectric distance measuring instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692185A (en) * | 2012-06-13 | 2012-09-26 | 东南大学 | Rapid detection method for ballastless track boards of high-speed railway |
| CN102692185B (en) * | 2012-06-13 | 2015-04-29 | 东南大学 | Rapid detection method for ballastless track boards of high-speed railway |
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| CN101464163A (en) | 2009-06-24 |
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