The difference between a level and a spirit level
A level is an instrument for establishing a horizontal line of sight to measure the height difference between two points on the ground.
Levels appeared after the invention of telescopes and levels in the 17th and 18th centuries.
At the beginning of the 20th century, the micro-tilt level was produced on the basis of the inner focusing telescope and the coincidence level.
In the early 1950s, an automatic leveling level appeared;
In the 1960s, a laser level was developed;
In the 1990s, electronic levels or digital levels appeared.
A spirit level is a common measuring tool for measuring small angles.
In the machinery industry and instrument manufacturing, it is used to measure the inclination angle relative to the horizontal position, the flatness and straightness of the guide rail of machine tool equipment, the horizontal position and vertical position of equipment installation, etc.
According to the shape of the level meter, it can be divided into:
There are two types of frame level and ruler level;
According to the fixing method of the level, it can be divided into:
Adjustable spirit levels and non-adjustable spirit levels.
The two are used in different fields, and the level is used in the engineering construction industry to measure height difference.
Levels are used in machinery manufacturing to measure relative flatness.
The civil engineering profession sometimes calls the spirit level a spirit level, which is easy to confuse.
For the on-site installation of large equipment containers, a level should be used to measure the relative elevation to ensure that the height is consistent.
The level is usually marked high, and the reading of the tower foot is read through the reticle in the eyepiece, which is usually used in the construction stage.
The spirit level is somewhat similar to the spirit level, but after leveling, turn on the switch, a horizontal laser will be shot onto the tower foot, and the laser reading on the tower foot will be used to measure the flatness of the bottom and roof after plastering. It is fast and used for household division acceptance.
Both measure the flatness by reading the tower ruler.
In the case of strong sunlight, the laser line will be difficult to see clearly, so it is almost difficult to see the laser line on the tower ruler when used outdoors at a long distance, and it is usually used indoors.
