Electric tensile resistance tester

Abstract

The invention relates to an electric tensile resistance tester which is characterized by comprising a bracket and pulleys. Two pulleys are arranged on the top of the bracket, a scale is arranged on the bracket; one end of a first pulley is connected with a fixed weight test device through a steel wire, the other end of the first pulley is connected with a second pulley through a steel wire, and the second pulley is connected with a motor through a steel wire. The fixed weight test device comprises a gravity sensing device, a hook, a control box and a liquid crystal display screen, wherein the hook is arranged at the lower end of the gravity sensing device, the gravity sensing device is connected with the control box through a wire, and the control box is provided with the liquid crystal display screen. The bracket is an expansion bracket. By adopting three tensile tests, the telescopic bracket can test objects with different lengths. The practical ability of a student is cultured through an electric tensile resistance test, and different tensile resistance ability of different materials can be tested. The creative spirit and the scientific capacity of the student are cultured through a test activity.

Description

technical field [0001] The invention relates to a tensile tester, in particular to an electric tensile tester. Background technique [0002] Students measure different tensile tests of different materials in the laboratory, and usually directly observe the deformation of the object from the scale by hand, which is time-consuming, laborious, and has large errors and is not accurate. Contents of the invention [0003] In order to overcome the defects in the prior art, the invention provides an electric tensile tester which can reflect the tensile data in real time and observe the deformation of the object during testing. [0004] The technical solution adopted by the present invention to solve its technical problems is: an electric tensile tester, which is characterized in that it comprises a bracket, a pulley, two pulleys are placed on the top of the bracket, a scale is placed on the bracket, and one end of the first pulley is The fixed weight measuring device is connected...

AI Technical Summary

Problems solved by technology

[0002] Students measure different tensile tests of different materials in the laboratory, usually manually observing the deformation of the object directly from the scale, which is time-consuming and laborious, and the error is large and imprecise

Images