System and method for multi-sensor comparative rotation speed test

Abstract

The invention discloses a system and a method for multi-sensor comparative rotation speed test, which relate to the technical field of rotation speed measurement. The system comprises a servo motor, a signal generator, a processing unit and at least two rotation speed sensors. The servo motor comprises a rotary encoder. The processing unit is respectively connected with the rotary encoder, the rotation speed sensors, the servo motor and the signal generator. The rotation speed measured by the high-precision rotary encoder is used as standard, confidential level of comparison results of the different rotation speed sensors is increased, and accuracy comparison among the different rotation speed sensors and comparison of measuring accuracy and resolution among the different sensors are achieved further.

Description

technical field [0001] The invention relates to the technical field of rotational speed measurement, in particular to a multi-sensor comparative rotational speed test system and method. Background technique [0002] The speed test bench is a test device used to simulate the dynamic behavior of actual rotating machinery equipment, and is mainly used for laboratory verification of the kinematic characteristics of flexible rotors. By selecting different types of speed sensors for speed measurement, the advantages, disadvantages and scope of application of various speed sensors in speed measurement can be effectively reflected. Therefore, this test bench provides effective and convenient experimental means for engineering test research and relevant laboratories of various universities. It is a set of speed test system very suitable for scientific research, teaching and training demonstration. [0003] At present, the speed test benches that are widely used have a single speed s...

AI Technical Summary

Problems solved by technology

In the single speed sensor measurement mode, because the selected sensor is relatively single and the way to measure the speed is limited, if the test sensor cannot be selected reasonably, the accurate measurement of the speed cannot be realized; the multi-speed sensor measurement mode uses many types of sensors, except In addition to realizing a variety of speed measurement methods and meeting different measurement requirements, users can also compare the scope and conditions of different types of sensors. Therefore, this measurement mode is a major trend in the development of speed test benches.

[0004] However, the existing speed test bench can only compare the accuracy of different speed sensors under the same test method, and lacks the standard speed as a reference, resulting in a lack of credibility in the comparison results

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