The roundness meter is a length measuring tool that uses the rotary axis method to measure the roundness. The roundness tester is a measuring tool for measuring the roundness error of workpieces by using the rotary axis method. The roundness tester is divided into two types: sensor rotary type and workbench rotary type. During measurement, the measured part and the precision shaft system are installed concentrically, and the precision shaft system is equipped with an inductive length sensor or a workbench for precise circular motion. It is composed of sensor, amplifier, filter and output device of the instrument. If the instrument is equipped with a computer, the computer is also included in this system.
Principle of roundness tester
The principle of the roundness meter is the same as that of the three coordinate measuring machine. In fact, its working principle is very simple. The three coordinate measuring machine is a point acquisition tool. Its principle is to first acquire points, then form a line from points, and then form a three-dimensional model from lines. CMM is a kind of measuring equipment with guiding mechanism, length measuring element and digital display device in three mutually perpendicular directions, a workbench (not necessarily large or giant) that can place workpieces, the measuring head can be moved to the measured point quickly and manually or mechanically, and the coordinate value of the measured point is displayed by the data reading equipment and digital display device. Obviously, this is the simplest and most primitive measuring machine. With this measuring machine, the coordinate value of any point in the measuring volume can be displayed through a reading device and a digital display device.
The cylindricity meter is a rotary table cylindricity meter with a computer measurement system based on the precision air floating spindle and high-precision column guide rail. It is mainly used to measure the roundness, cylindricity, waviness, coaxiality, concentricity, perpendicularity, parallelism, straightness and other parameters of rotary workpieces such as rings and cylinders.
The instrument is mainly composed of high-precision air floating spindle, precision leveling and centering worktable, high-precision granite column, granite table top, high-precision inductive probe, precision rotary encoder, drive control electric box, high-precision measurement electric box, air filtering and drying system and special measurement and analysis software based on Windows XP.
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