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The level of the horizontal meter is made of glass, the standard tube wall is a curved surface with a certain radius of curvature, the tube is filled with liquid, when the level of tilt, the air bubble in the leveling tube to the elevated end of the move, so as to determine the position of the horizontal. The greater the curvature radius of the horizontal tube, the higher the resolution, the smaller the radius of curvature and the lower the resolution, so the accuracy of the level gauge is determined by the curvature radius of the leveling tube. The level meter is mainly used to test the flatness, straightness, verticality and the horizontal position of equipment installation of various machine tools and workpieces. Especially in the measurement of verticality, magnetic level can be sucked adsorption in the vertical face, without artificial support, reduce the labor intensity, to avoid the body heat radiation to the level of the measurement error.
The level instrument is a measuring tool that takes a leveling device as a measure and a reading element. The level is a sealed glass tube, the inner surface of the longitudinal section with a certain radius of curvature of the arc surface. The glass tube of the leveling device is fitted with a liquid with a small viscous coefficient, such as alcohol, ether and its mixture, and the part that is not liquid is usually called a standard bubble. There is a certain relationship between the curvature radius and the fractal value of the longitudinal section of the glass tube, and the inclination of the measured plane can be measured according to the relation.