CN86106619A - Vertical angle calibrating instrument - Google Patents
Vertical angle calibrating instrument Download PDFInfo
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- CN86106619A CN86106619A CN 86106619 CN86106619A CN86106619A CN 86106619 A CN86106619 A CN 86106619A CN 86106619 CN86106619 CN 86106619 CN 86106619 A CN86106619 A CN 86106619A CN 86106619 A CN86106619 A CN 86106619A
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- vertical angle
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Abstract
Vertical angle calibrating instrument disclosed by the invention is made up of an auto-collimation collimator and a vertical reflective mirror (claiming the pendulum mirror again) that is suspended under-1 intersection movable joint, when overlapping when the crosshair of auto-collimation collimator with by resembling of returning of pendulum mirror reflection, auto-collimation collimator can provide a middle error for ± 0.5 " about the datum-plane sight line, this calibration work that just can make over the spirit-leveling instrument vertical angle of carrying out in the open air forwards indoor carrying out to.It is particularly suitable for spirit-leveling instrument manufacturer, maintenance unit in indoor calibration vertical angle critically in batch, and by the micrometric measurement of vertical angle being examined the stability of instrument.
Description
The present invention's a kind of vertical angle (being the i angle) testing-calibrating instrument of touching upon is mainly used in the i angle at the indoor calibration spirit-leveling instrument, also is applicable to the occasion that other needs reference horizontal line.
The i angle of calibration spirit-leveling instrument is all undertaken by " national leveling norm " described method outdoor at present.Spirit-leveling instrument manufacturer also be by this method behind spirit-leveling instrument of outdoor calibration, again according to this spirit-leveling instrument at parallel light tube of indoor leveling, and then according to this other spirit-leveling instrument of parallel light tube calibration.The problem of doing existence like this is that labor capacity is big, precision is not high, inconvenience is judged the stability of spirit-leveling instrument from the variation at i angle, can not check at any time the good spirit-leveling instrument of outdoor correction and in indoor leveling parallel light tube since the change of extraneous vibration and temperature whether change.
The objective of the invention is to design a kind of instrument that is specifically designed to the calibration level gage i angle at existing problem in the above-mentioned prior art.
The core of this instrument is auto-collimation collimator and vertical reflective mirror (claiming the pendulum mirror again).The task of auto-collimation collimator is to provide a horizontal collimation line by its crosshair intersection point, and checks that whether vertical of pendulum mirror reflection face, the task of pendulum mirror are to check whether level of this collimation line.The pendulum mirror was suspended on by-1 intersecting on the movable joint that elastic webbing constitutes, and can intersect movable joint together around pedal line Rotate 180 ° with-1.
The pendulum mirror can be enclosed within before the auto-collimation collimator object lens, also can have independent pedestal.
The reflecting surface (1 among Fig. 1) of supposing the pendulum mirror is a vertical, when parallel light tube crosshair (2 among Fig. 1) and the crosshair that returns of pendulum mirror reflection resemble when overlapping, then just perpendicular to the reflecting surface of pendulum mirror, the collimation line that is to say parallel light tube is a level to the given collimation line of parallel light tube center of reticule.Here it is, and i angle testing-calibrating instrument can provide the ultimate principle of horizontal collimation line.
In fact the reflecting surface I(that puts mirror is referring to Fig. 2) always have a small angle γ with pedal line VV.When the auto-collimation collimator level, its center of reticule K reflects imaging in the A on auto-collimation collimator crosshair plane point through reflecting surface I.If reflecting surface ° is on the position of II around pedal line VV Rotate 180, then K in the B point, and has AK=BK with imaging after reflection.Whether level and reflecting surface vertical whether of parallel light tube can be judged in view of the above, and parallel light tube horizontality can be adjusted to.
-1 amplification coefficient that intersects movable joint (3 among Fig. 1 or Fig. 2) is-1, that is to say, when basic slope α angle, the pendulum mirror can oppositely be put go back to the α angle, and therefore can guarantee to put mirror can rotate around the VV vertical line.
According to above-mentioned design, the present invention has following advantage:
1) can utilize existing auto-collimation collimator to provide a high-precision datum-plane sight line indoor, middle error can reach ± and about 0.5.
2) apparatus structure is simple, and cost is low.
3) can check at any time whether this datum-plane sight line is subjected to vibration, temperature change etc. and inclination has taken place.
4) work can be carried out indoor, not influenced by weather condition, has alleviated the labour intensity of field work.
5) can be used to accurately judge the stability of spirit-leveling instrument.
6) can be used for the occasion that other needs reference horizontal line.
Below in conjunction with accompanying drawing invention is described in detail:
Fig. 1 and Fig. 2 are schematic diagram of the present invention.
Fig. 3 is enclosed within auto-collimation collimator object lens structural drawing before for the pendulum mirror.
Fig. 4 has the structural drawing of independent pedestal for the pendulum mirror.
Because the existing various products of auto-collimation collimator are available, thereby key of the present invention is to design suitable pendulum mirror.
With reference to embodiment shown in Figure 3, housing 10 and connecting cylinder 13 are basic components of instrument, and they are to guarantee by three pieces of dog screws 14 that withstand its objective holder end face with the location of auto-collimation collimator 12, and available locking handwheel 11 is locked.Pendulum mirror 1 constitutes pendulum mass with-1 intersection movable joint 3.Level 8 designs in garden are used for guaranteeing the compensation range of-1 pendulum and thick Anping of total system in the centre of pendulum mirror rotation hand wheel 9.Handwheel 9 intersects movable joint 3 and is connected by revolving axle 7 and-1, and rotation hand wheel 9 can make intersection movable joint 3, put mirror 1 and air damper 4,5 rotates 360 °.Pendulum mirror 1 is a parallel plate, and balance nut 15 is used for adjusting pendulum mirror reflection face makes it be in vertical.Change the weight that different counterweight nuts 16 can change pendulum mass, the amplification coefficient of pendulum is adjusted to-1.Cover glass 6 is convenient to logical light.
With reference to embodiment shown in Figure 4, vertical pivot 7 is being fixed in housing 10 belows, and housing 10 can be rotated in the axle sleeve of pedestal 18.Adjust foot screw 19 according to garden level 8 and vertical pivot can be placed in vertical.21 is horizontal final motion screw, and 20 is clamp screw.20,21,18,19 and 8 can directly utilize S
3The base component of spirit-leveling instrument.3-1 intersect movable joint for what be made of elastic webbing, and its top is fixed together with pendulum mirror holder 17, and pendulum mirror holder below is fixed together with housing 10, and 3 below is hanging pendulum mirror 1, and pendulum mirror 1 and pedestal 5 constitute the piston of air dampers, can swing in cylinder 4.23 are logical light sheet glass.15 for adjusting nut, and the reflecting surface that is used for adjusting pendulum mirror 1 is in the plumb position, changes nut weight and can also adjust the amplification coefficient of movable joint 3 and be protection sheet glass for-1.6 and 22, also can be without them, and use housing instead, take off housing during work and get final product.
Claims (7)
1, the 1 jiao of testing-calibrating instrument that is used for 1 jiao of calibration spirit-leveling instrument.It is characterized in that it has an auto-collimation collimator that can provide horizontal collimation line.A pendulum mirror is arranged on horizontal collimation line direction.
2, i according to claim 1 angle testing-calibrating instrument is characterized in that putting mirror and is suspended on by-1 intersecting on the movable joint that elastic webbing constitutes.
3, i according to claim 2 angle testing-calibrating instrument is characterized in that putting mirror and can intersect movable joint around pedal line Rotate 180 ° together with-1.
4, according to claim 1,2 or 3 described i angle testing-calibrating instruments, it is characterized in that putting mirror and be enclosed within before the auto-collimation collimator object lens.
5, i according to claim 4 angle testing-calibrating instrument is characterized in that putting and hangs with a counterweight nut below the mirror, has an air damper and one to adjust nut between them, in the middle of the rotation hand wheel of pendulum mirror a garden level is installed.
6, according to claim 1,2 or 3 described i angle testing-calibrating instruments, it is characterized in that putting mirror and have independent pedestal.
7, i according to claim 6 angle testing-calibrating instrument is characterized in that putting mirror itself and constitutes air damper again, can swing in cylinder, and pendulum mirror and-1 intersects an adjustment nut is installed between the movable joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106619 CN86106619A (en) | 1986-10-13 | 1986-10-13 | Vertical angle calibrating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86106619 CN86106619A (en) | 1986-10-13 | 1986-10-13 | Vertical angle calibrating instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86106619A true CN86106619A (en) | 1988-04-27 |
Family
ID=4803285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86106619 Pending CN86106619A (en) | 1986-10-13 | 1986-10-13 | Vertical angle calibrating instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86106619A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464163B (en) * | 2007-12-18 | 2011-08-03 | 上海宝钢工业检测公司 | Straightness detecting method for platform normal point used for total station instrument check |
-
1986
- 1986-10-13 CN CN 86106619 patent/CN86106619A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464163B (en) * | 2007-12-18 | 2011-08-03 | 上海宝钢工业检测公司 | Straightness detecting method for platform normal point used for total station instrument check |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |