IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0516730
(2003-05-17)
|
등록번호 |
US-7259842
(2007-08-21)
|
우선권정보 |
CH-0956/02(2002-06-07) |
국제출원번호 |
PCT/EP03/005206
(2003-05-17)
|
§371/§102 date |
20050110
(20050110)
|
국제공개번호 |
WO03/104748
(2003-12-18)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
3 |
초록
▼
The invention relates to an optical inclinometer, in which radiation is emitted form a radiation source. After passing through a receptacle containing at least one first medium, said radiation is reproduced in a camera. Information concerning the inclination of the inclinometer can be gathered from
The invention relates to an optical inclinometer, in which radiation is emitted form a radiation source. After passing through a receptacle containing at least one first medium, said radiation is reproduced in a camera. Information concerning the inclination of the inclinometer can be gathered from the position of the first medium, in particular a liquid level, in relation to the inclinometer or the camera. The recording of the position of the first medium by a camera permits the evaluation of a plurality of characteristics, in particular the form, dimension and position of a boundary layer.
대표청구항
▼
The invention claimed is: 1. An optical inclinometer comprising: a radiation source for producing radiation; at least one first medium whose position is inclination-dependent; a receptacle for the first medium; a camera for recording and converting an image into signals; and an evaluating unit for
The invention claimed is: 1. An optical inclinometer comprising: a radiation source for producing radiation; at least one first medium whose position is inclination-dependent; a receptacle for the first medium; a camera for recording and converting an image into signals; and an evaluating unit for determining the inclination, the radiation source and camera being arranged so that an image of the course of an interface of at least a part of the first medium is reproduced indirectly or directly on the camera by the radiation, wherein the camera and the evaluating unit are formed so that the image is recorded by the camera and the course of the interface is resolved and the course of the interface is evaluated by the evaluating unit for determining the inclination. 2. The optical inclinometer as claimed in claim 1, wherein an image of the course of at least a part of a substantially flat interface of the first medium is reproduced indirectly or directly on the camera. 3. The optical inclinometer as claimed in claim 2, wherein the first medium is a liquid and the interface is a liquid horizon. 4. The optical inclinometer as claimed in claim 3, wherein the receptacle is designed as a cylindrical can. 5. The optical inclinometer as claimed in claim 2, wherein the inclinometer has, as a second medium, a gas, a liquid or a solid, whose contact surface with the first medium defines the interface. 6. The optical inclinometer as claimed in claim 5, wherein the first medium and the second medium have different transmission ratios for the radiation. 7. The optical inclinometer as claimed in claim 1, wherein the first medium is a pendulum-like solid. 8. The optical inclinometer as claimed in claim 1, wherein the radiation source has a semiconductor laser or an LED. 9. The optical inclinometer as claimed in claim 1, wherein radiation source and camera are arranged so that the radiation in the region of the first medium is passed substantially parallel to a surface of the first medium. 10. The optical inclinometer as claimed in claim 1, wherein the receptacle is mounted indirectly or directly on the camera. 11. The optical inclinometer as claimed in claim 1, wherein the receptacle has a first flat, transparent surface and a second transparent surface which are oriented substantially parallel to one another, the second surface being flat or arched. 12. The optical inclinometer as claimed in claim 11, wherein the camera has a two-dimensional detector surface which is oriented parallel to the first surface and/or to the second surface of the receptacle. 13. The optical inclinometer as claimed in claim 1, wherein radiation source and camera are mounted on a common base. 14. The optical inclinometer as claimed in claim 13, wherein radiation source and camera are arranged so that the radiation produced is emitted perpendicularly to the surface of the base and the receiving means of the camera is oriented perpendicularly to the surface of the base. 15. The optical inclinometer as claimed in claim 13, wherein a beam path from the radiation source to the camera has at least one deflecting element. 16. A geodetic device, in particular distance-measuring instrument or plumb staff, comprising an inclinometer as claimed in claim 1. 17. A method for measuring the inclination of a device, in particular of a geodetic device, comprising a radiation source for producing radiation; at least one first medium whose position is inclination-dependent; a receptacle for the first medium; a camera for recording images; and an evaluating unit for determining the inclination of the device, comprising the steps: production of an image on the camera by means of radiation produced by the radiation source, the image including the course of an interface of at least a part of the first medium, recording and conversion of the image into signals by the camera, determination of the inclination of the device from the signals by the evaluating unit, wherein the course of the interface is resolved and the course of the interface is evaluated for determining the inclination. 18. The method as claimed in claim 17, wherein the inclination of the device is determined from the orientation and shape of the interface. 19. The method as claimed in claim 17, wherein, in producing an image, the radiation is passed substantially parallel to a surface of the first medium. 20. The method as claimed in claim 17, wherein the determination of the inclination is effected taking into account, the angle of the first medium in the image, and the absolute position of the first medium in the image. 21. The method as claimed in claim 17, wherein a signal is output on reaching or exceeding a predeterminable inclination value. 22. The method as claimed in claim 17, wherein, in the determination of the inclination, errors due to temperature effects and/or substance losses of at least the first medium are taken into account, in particular eliminated. 23. The method as claimed in claim 17, wherein, in producing an image, a substantially flat interface of the first medium is reproduced. 24. The method as claimed in claim 23, wherein, in the determination of the inclination of the device, the extent, shape and/or position of the interface is taken into account. 25. The optical inclinometer as claimed in claim 1, wherein the camera is at least one of a CMOS or CCD micro-camera. 26. The optical inclinometer as claimed in claim 4, wherein the cylindrical can is half-full. 27. The optical inclinometer as claimed in claim 5, wherein the solid is in the form of a float. 28. The optical inclinometer as claimed in claim 6, wherein the first and second medium have different coefficients of transmission. 29. The optical inclinometer as claimed in claim 6, wherein one of the first medium or second medium is impermeable to the radiation. 30. The optical inclinometer as claimed in claim 13, wherein the common base is a circuit board.
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