What kinds of measuring instruments are there?

Measuring instruments include theodolite, level meter, flatbed instrument, electromagnetic wave range finder, gyro theodolite, laser measuring instrument, static level meter, etc.

The concepts of measuring instruments include: accuracy, error, measuring standard equipment, length measurement, angle measurement, shape measurement and traditional optical instruments. Application in precision measurement.

There are two kinds of measuring instruments: contact testing and optical testing (most commonly used): general measuring tools and 3D measuring tools (coordinate measuring machines). Three-dimensional coordinate measuring machine, also called three-dimensional, can measure many complex spatial dimensions, such as molds and automobile products.

Theodolite is the main angle measuring instrument in measurement.

1, theodolite consists of sighting part, horizontal reading plate and base.

2, the role of theodolite parts

(1) Brake screw of sighting part: it fixes the sighting part so that it cannot move in the horizontal direction; Micro-screw of aiming part: make the aiming part rotate slightly in the horizontal direction so as to aim at the target accurately.

(2) Telescope brake screw: brake the telescope so that it cannot rotate in the vertical direction.

(3) Telescope inching screw: make the telescope do inching rotation in the vertical direction.

(4) Micro screw of horizontal tube of vertical dial indicator: adjust the vertical dial indicator to the correct position.

(5) Fixing screw of axle seat: fixing sight.