FIELD: physics.
SUBSTANCE: video tilt metre has a vessel with liquid. Over the liquid, there is a lens, a light-dividing element, a light source and a position sensitive photodetector which generates a video signal with video frames, all optically connected to each other and the surface of the liquid. A mirror with a round window, whose centre lies on the optical axis of the lens, is placed between the lens and the surface of the liquid. The mirror is fixed at an angle to the base of the vessel such that images of the light source in a video frame, reflected from the mirror and the surface of the liquid, are not superimposed on each other in the entire measurement range. The diametre of the window in the mirror is determined using an appropriate formula.
EFFECT: measurement accuracy owing to stability of the spatial position of the optical axis of the lens.
1 dwg
Title | Year | Author | Number |
---|---|---|---|
VIDEO INCLINE METER | 2003 |
|
RU2258906C2 |
VIDEO AUTOCOLLIMATOR | 2010 |
|
RU2455668C2 |
METHOD FOR HIGH-PRECISION DETERMINATION OF ANGLES OF INCLINATION OF CONTROLLED ENGINEERED OR NATURAL OBJECT DURING GEODETIC MONITORING USING COMPUTER VISION TECHNOLOGY IN REAL TIME UNDER EXTREMELY LOW AMBIENT TEMPERATURES, AND DEVICE FOR ITS IMPLEMENTATION | 2022 |
|
RU2800188C1 |
VIDEO AUTOCOLLIMATING ANGLE METER | 2014 |
|
RU2583126C1 |
VIDEO DEVICE FOR TRANSMITTING GIVEN DIRECTION FROM ONE HORIZON TO ANOTHER | 2014 |
|
RU2583059C1 |
TWO-COORDINATE PHOTOELECTRIC DIGITAL AUTOCOLLIMATOR | 2013 |
|
RU2535526C1 |
DEVICE FOR DETERMINATION OF RELATIVE ANGULAR POSITION OF TWO REFLECTORS | 0 |
|
SU1744685A1 |
MEASURING HEAD FOR HYDROSTATIC LEVELLING SYSTEM | 0 |
|
SU949339A1 |
DEVICE FOR TESTING MIRROR CAMERA | 0 |
|
SU1666998A1 |
VIDEO REFRACTOMETER | 2006 |
|
RU2315286C1 |
Authors
Dates
2011-05-20—Published
2009-12-15—Filed