Graphic analysis Leeb Hardness Tester working principle and problem solving

Author: 谭伟新

Source: 里氏硬度计基本原理和常见故障处理

What is a Leeb Hardness Tester? In fact, it is a measuring instrument. The working principle of the Leeb Hardness Tester is that an impact body of a certain mass impacts the surface of the sample under the influence of a certain test force, and detects the impact velocity and rebound velocity at a distance of 1mm from the surface of the sample. proportional to the voltage. This article introduces in detail the structural features of the Leeb Hardness Tester and the solutions to common problems in daily applications.

Leeb hardness is a relatively new hardness measurement technology. Its basic principle is that an impact body with a certain mass impacts the surface of the sample under a certain test force, and the impact velocity and rebound of the impact body at a distance of 1 mm from the sample surface are measured. Velocity, using electromagnetic principles, induces a voltage proportional to velocity. The Leeb hardness value is expressed by the ratio of the rebound velocity of the impact body to the impact velocity.

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