High-precision swinging friction coefficient measuring apparatus

Abstract

The invention provides a high-precision swinging friction coefficient measuring apparatus; a swinging rod is mounted on swinging axle of a bracket; a rotor is mounted on the end of the swinging rod; a friction film is provided at the bottom of the rotor; a friction test block is arranged at the vertical lower portion of the swinging axle; the apparatus is characterized in that: a, angle encoder coupled with the swinging axle is disposed at the position of the swinging axle; a force sensor is provided at the lower portion of the friction test block; the measuring data of the angle encoder and the force sensor are transmitted to the data collecting and processing device. The device of the invention utilizes the signals of the force sensor and the angle encoder to measure and calibrate the friction coefficient of the friction test block, which can solve the measurement tracing problem of the friction coefficient and has advantages of simple structure, high accuracy and good stability, etc.

Description

Technical field [0001] The invention is a high-precision pendulum friction coefficient measuring instrument, which belongs to the technical field of measurement. Background technique [0002] The friction coefficient is often an important evaluation index in the evaluation of the road surface level, the surface performance test of vehicle or aircraft tires, and the surface quality evaluation of special materials such as sports venues. Therefore, the friction coefficient measuring instrument is important for improving the processing level and controlling the quality of products. significance. The original pendulum friction coefficient measuring instrument has been widely used in the evaluation of highway pavement construction grades, and has played an important role in ensuring the quality of highway construction. However, due to the relatively low measurement stability and measurement accuracy, the existing measuring instrument is practical Problems such as unstable measurement r...

AI Technical Summary

Problems solved by technology

The original pendulum friction coefficient measuring instrument has been widely used in the evaluation of highway pavement construction grades, and has played an important role in ensuring the quality of highway construction. However, due to the relatively low measurement stability and measurement accuracy, the existing measuring instrument is not practical In the application, there will be problems such as unstable measurement results or differences in the measurement results of different measuring instruments, so its application is limited to a certain extent, and it is necessary to further improve the measurement accuracy and stability, and solve the problem of unified traceability

Images