Dynamic performance evaluation device of particle detection sensor

Abstract

The invention provides a dynamic performance evaluation device of a particle detection sensor, which includes a vibrating table, a carrier part, a particle motion simulation test bench and a linear motion mechanism. The vibrating table provides vibrations with a prescribed vibration spectrum along the downward vertical direction, and the vibrating table has a work surface on which a particle detection sensor to be evaluated can be installed. The carrier part is provided with standard particles, and the carrier part is suitable for entering and exiting the liquid channel of the particle detection sensor under linear motion. The particle motion simulation test bench is adjacent to the vibration table, and the particle motion simulation test bench is provided with a linear motion mechanism, and the linear motion mechanism drives the carrier to enter and exit the particle at a controllable speed, acceleration and / or path Check the fluid channel of the sensor. The dynamic performance evaluation device of the particle detection sensor of the present invention can evaluate the dynamic response characteristics of the particle detection sensor under different conditions.

Description

technical field [0001] The invention mainly relates to an evaluation device, in particular to a dynamic performance evaluation device of a particle detection sensor. Background technique [0002] Lubricating oil metal particle detection sensor is often used to monitor the size and weight of metal particles in the oil circuit, so as to measure the state of mechanical loss in the pipeline, evaluate the probability of failure, and give early warning. At present, for manufacturers such as lubricating oil metal particle detection sensors, it is very difficult to positively design particle detection sensors. Since the characteristics of the sensor are affected by many factors such as magnetic field, flow field, material and structural strength, a large amount of test data can be obtained with the help of the evaluation device to improve the performance of the particle detection sensor. [0003] Existing evaluation devices generally consist of standard particles and particle-carry...

AI Technical Summary

Problems solved by technology

This type of evaluation device can only test the detection rate of standard particles passed by the sensor and the minimum particle size that can be detected, and cannot obtain the relationship between the sensor output signal and the flow state (including speed, acceleration, path). These relationships are precisely the most valuable data for improving sensor performance.

At the same time, the characteristics of the sensor under vibration conditions are also one of the important indicators for evaluating the performance of the sensor. The existing test method is to install the sensor on a vibration table and manually extract standard particles to obtain the anti-vibration performance of the sensor. However, the noise in this way High strength causes damage to operators

Images