CN101592480A - Translational photoelectricity profilograph - Google Patents
Translational photoelectricity profilograph Download PDFInfo
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- CN101592480A CN101592480A CNA2009101002249A CN200910100224A CN101592480A CN 101592480 A CN101592480 A CN 101592480A CN A2009101002249 A CNA2009101002249 A CN A2009101002249A CN 200910100224 A CN200910100224 A CN 200910100224A CN 101592480 A CN101592480 A CN 101592480A
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- profilograph
- probe
- photoelectric sensor
- photoelectricity
- translational
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Abstract
A kind of translational photoelectricity profilograph, comprise the probe that is used to survey body surface, described translational photoelectricity profilograph also comprises track, slide snap gauge, photoelectric sensor and is used for writing down according to the shift signal of photoelectric sensor the contour curve shaping module of the contour curve figure of object, leg is installed at described track two ends, described slide snap gauge is slidably mounted on the described track, described probe is installed on the described slide snap gauge, described photoelectric sensor is installed on the described probe, and described photoelectric sensor is connected with described contour curve shaping module.The invention provides a kind of translational photoelectricity profilograph that improves the measuring accuracy of contour curve.
Description
Technical field
The present invention relates to a kind of instrument that is used for the profiling object surface curved measurement, especially a kind of profilograph.
Background technology
As the patent No. is 92226138.5, denomination of invention is the Chinese utility model patent of profilograph, a kind of profilograph is disclosed, form by probe, ruling pen, counterbalance weight, fixed head, probe, ruling pen, counterbalance weight are made of one, fixed head is another part separately, and during use, ruling pen vertically presses closer fixed head, probe vertically drops on the rock surface.Mobile balanced block, probe rolls on rock surface, and ruling pen is then drawn the rock surface curve continuously on fixed head.This profilograph is applicable to the open-air Rock Joint Plane of occurrence arbitrarily, draw the joint surface outline curves of any direction serially, have precision meet the demands (0.1mm), in light weight, volume is little, easy to carry, easy and simple to handle, characteristics such as render speed is fast.But there be the influence very big such problem of operating process to the result in this profilograph.Make a concrete analysis of as follows: the integral body that is made of probe, ruling pen, counterbalance weight as shown in Figure 1, wherein, OA and AB are the position line of probe and ruling pen.When integral body turned forward, state was shown in Fig. 2 dotted line, and the position line changing condition as shown in Figure 3.
Can calculate thus because when turning forward α, caused measuring error is as follows:
∵OG＝OCcosα，AO＝OC
∴AG＝AO-OG＝AO-OCcosα＝AO(1-cosα)
∵CD＝AB
∴ED＝CDsinα＝ABsinα
∵EF＝AG
∴FD＝FE+ED＝ABsinα+AO(1-cosα)
Work as AO=10cm, during α=2 °, the relation curve of error and AB length as shown in Figure 4, as can be seen from the figure with the increase of AB axial length, constant by the error that the OA axis produces, the sum of errors total error straight line that is produced by the AB axis increases, work as AB=5cm, AG=0.061mm, ED=1.745mm, FD=1.806mm; This shows, can lean forward by the integral body that probe, ruling pen, counterbalance weight constitute and hypsokinesis, produce the error of can not ignore for the profilograph of Du Shigui.
Summary of the invention
The bigger deficiency of measuring error in order to overcome existing profilograph the invention provides a kind of translational photoelectricity profilograph that improves the measuring accuracy of contour curve.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of translational photoelectricity profilograph, comprise the probe that is used to survey body surface, described translational photoelectricity profilograph also comprises track, slide snap gauge, photoelectric sensor and is used for writing down according to the shift signal of photoelectric sensor the contour curve shaping module of the contour curve figure of object, leg is installed at described track two ends, described slide snap gauge is slidably mounted on the described track, described probe is installed on the described slide snap gauge, described photoelectric sensor is installed on the described probe, and described photoelectric sensor is connected with described contour curve shaping module.
Further, described slide snap gauge has oblique through hole, and described probe is installed in the described oblique through hole.
Further again, described photoelectric sensor is installed in the upper end of described probe.
Technical conceive of the present invention is: there is a light emitting diode electro-optical package inside, by the light that this light emitting diode sends, illuminates the electro-optical package lower surface.With a part of light of electro-optical package lower surface reflected back,, be transferred to the interior imaging of a photoinduction device (little imager) then through one group of optical lens.Like this, when electro-optical package moved, its motion track just can be registered as the coherent image of one group of high-speed capture.Utilize a special image analysis chip (DSP of electro-optical package inside at last, be digital microprocessor) a series of images that absorbs on the motion track is carried out analyzing and processing, by the variation of characteristic point position on these images is analyzed, judge the moving direction and the displacement of electro-optical package, thus the location of finishing cursor.
Beneficial effect of the present invention mainly shows: improve the measuring accuracy of contour curve, and easy to use.
Description of drawings
Fig. 1 is the structural drawing of the profilograph of prior art.
Fig. 2 is the constitutional diagram after profilograph integral body shown in Figure 1 turns forward.
Fig. 3 is the synoptic diagram of position line changing condition when turning forward α.
Fig. 4 is the graph of relation between error and the AB length.
Fig. 5 is the structural representation of translational photoelectricity profilograph of the present invention.
Fig. 6 is the front view of slide snap gauge.
Fig. 7 is the side view of Fig. 6.
Fig. 8 is the vertical view of Fig. 6.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 5-Fig. 8, a kind of translational photoelectricity profilograph, comprise the probe 8 that is used to survey object 7 surfaces, described translational photoelectricity profilograph also comprises track 5, slide snap gauge 3, photoelectric sensor 4 and the contour curve shaping module that is used for writing down the contour curve figure of object according to the shift signal of photoelectric sensor, leg 6 is installed at described track 5 two ends, described slide snap gauge 3 is slidably mounted on the described track 5, described probe 8 is installed on the described slide snap gauge 3, described photoelectric sensor 4 is installed on the described probe 8, and described photoelectric sensor 4 is connected with described contour curve shaping module.
Described slide snap gauge 3 has oblique through hole, and described probe 8 is installed in the described oblique through hole.Described photoelectric sensor 4 is installed in the upper end of described probe 8.
During use, on structural plane 7, the phototube bottom presses closer track 5, probe drops on the rock surface with the curve instrument stand.Mobile slip snap gauge 3, probe rolls on rock surface, pops one's head in and has photoelectric sensor 4 along continuous straight runs motion time vertical tremor of USB interface, has write down contour curve, and computing machine can be drawn the rock surface curve continuously with software.This profilograph is applicable to the open-air Rock Joint Plane of occurrence arbitrarily, draw the joint surface outline curves of any direction serially, have precision meet the demands, in light weight, volume is little, easy to carry, easy and simple to handle, characteristics such as render speed is fast, can also after drawing roughness curve, directly curve be carried out digitized processing, the time that this can reduce greatly to the contour curve analysis, help the understanding of people's intensification to contour curve.
Contour curve shaping module adopts the drawing software of computer to realize, certainly, also can adopt special picture device to realize.Photoelectric sensor 4 is connected with computing machine 1, selects pencil with mouse, with the profilograph frame on structural plane.Mobile slip snap gauge, probe rolls on rock surface, and computing machine can be drawn the rock surface curve continuously with drawing software.
Claims (3)
1, a kind of translational photoelectricity profilograph, comprise the probe that is used to survey body surface, it is characterized in that: described translational photoelectricity profilograph also comprises track, slide snap gauge, photoelectric sensor and the contour curve shaping module that is used for writing down the contour curve figure of object according to the shift signal of photoelectric sensor, leg is installed at described track two ends, described slide snap gauge is slidably mounted on the described track, described probe is installed on the described slide snap gauge, described photoelectric sensor is installed on the described probe, and described photoelectric sensor is connected with described contour curve shaping module.
2, translational photoelectricity profilograph as claimed in claim 1 is characterized in that: described slide snap gauge has oblique through hole, and described probe is installed in the described oblique through hole.
3, translational photoelectricity profilograph as claimed in claim 1 or 2 is characterized in that: described photoelectric sensor is installed in the upper end of described probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101002249A CN101592480A (en) | 2009-06-25 | 2009-06-25 | Translational photoelectricity profilograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101002249A CN101592480A (en) | 2009-06-25 | 2009-06-25 | Translational photoelectricity profilograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101592480A true CN101592480A (en) | 2009-12-02 |
Family
ID=41407265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101002249A Pending CN101592480A (en) | 2009-06-25 | 2009-06-25 | Translational photoelectricity profilograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101592480A (en) |
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2009
- 2009-06-25 CN CNA2009101002249A patent/CN101592480A/en active Pending
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20091202 |