What is the accuracy of the level ruler? Is the longer the level ruler, the more accurate it is?
1. What is the accuracy of the level ruler?
The accuracy of the spirit level refers to the axial movement of the vial bubble and the inclination angle when the center of the bubble coincides with the symmetry center of the left and right marking lines when the level is at the specified horizontal inclination angle. Generally, the accuracy of the level is related to many factors , so what is the general accuracy of the level ruler?
The accuracy classification of the level is expressed in numerical values, and the unit is mm/m. For example, a level with a precision of 0.75mm/m means that the error per m when the level is measured does not exceed 0.75mm. The accuracy of the level ruler generally has the following types: 0.25mm/m, the angle is expressed as 0.0143°, 0.5mm/m, the angle is expressed as 0.02869, 0.75mm/m, the angle is expressed as 0.0430°, 1mm/m, the angle is expressed It is 0.0573°, 1.5mm/m, the degree is expressed as 0.0859°, 2mm/m, and the angle is expressed as 0.1146°.
2. Is the longer the horizontal ruler, the more accurate it is?
A level is usually used when measuring whether an object is in a horizontal state, and a level with appropriate accuracy needs to be selected according to the job requirements. Many friends think that the longer the level, the higher the level of accuracy. Is this correct?
In fact, the longer the level is not necessarily the more accurate, it also depends on the measured object itself, such as measuring a short object, a long level may not be accurate, but the level generally has several measurement points, horizontal There are both vertical and long-distance levels, which are composed of two parts, the left ruler and the right ruler, which can be spread apart to measure, and form the main body of the level. It is also more convenient to use to measure the distance.
Generally speaking, the longer the level is, the more accurate it is. It also depends on the straightness of the material, the quality of the vial, and whether the wall thickness of the ruler has been milled or not. The selection can be based on the needs of the measured object and Choose a level ruler with appropriate accuracy according to the actual situation.
