The detection method of electro-hydraulic pumps usually involves multiple aspects of performance testing to ensure its reliability and efficiency in practical applications. The following are some common electro-hydraulic pump detection methods:

1. Static characteristic test
The static characteristic test focuses on the pressure and flow characteristics of the electro-hydraulic pump under static conditions. During the test, a signal generator and a signal amplifier can be connected to the input end of the electro-hydraulic proportional electromagnet, and a DC signal is input to the electromagnet by adjusting the signal generator to observe and record the changes in pressure and flow. This method helps to understand the pressure output and flow stability of the electro-hydraulic pump under different currents.

2. Flow test
The flow test is one of the key indicators for evaluating the performance of the electro-hydraulic pump. The flow test can adopt the zero pressure difference flow test method, that is, the electro-hydraulic pump is immersed under the liquid surface as a whole, the pump cavity is filled with liquid, and then the volume of liquid output by the pump within a certain period of time is measured. In order to ensure the accuracy of the test, it is necessary to exclude the liquid flow interference caused by the height difference and use high-precision measuring tools (such as electronic balances) to measure the mass change of the liquid, and then convert it into volume flow.

3. Pressure test
The pressure test mainly evaluates the pressure output capacity of the electro-hydraulic pump when it is under a certain load. During the test, the load can be gradually increased to observe and record the changes in the output pressure of the electro-hydraulic pump. In addition, the zero-flow pressure difference method can be used to measure the back pressure of the electro-hydraulic pump, that is, the height of the rise in the liquid level during operation is converted into the output pressure. This method helps to understand the pressure stability and response speed of the electro-hydraulic pump under different load conditions.

IV. Efficiency test
Efficiency test is an important indicator to measure the energy conversion efficiency of the electro-hydraulic pump. During the test, the input power and the actual output water power can be measured, and the efficiency can be calculated. In order to improve the accuracy of the test, it is necessary to test under rated conditions and ensure the stability and consistency of the test environment.

V. Other tests
In addition to the above test methods, other tests can be performed according to specific application scenarios and requirements, such as durability test, temperature cycle test, vibration test, insulation resistance test and withstand voltage test. These tests help to comprehensively evaluate the reliability and safety of the electro-hydraulic pump and ensure its stability and durability in practical applications.

VI. Precautions
Before any test, it is necessary to ensure the stability and consistency of the test environment to avoid the influence of external factors on the test results.
During the test, the operating procedures and safety specifications need to be strictly followed to ensure the safety of the testers and the integrity of the equipment.
The test results need to be accurately recorded and analyzed in order to objectively evaluate and improve the performance of the electro-hydraulic pump.
In summary, the detection methods of electro-hydraulic pumps involve multiple aspects of performance testing, including static characteristics testing, flow testing, pressure testing, efficiency testing, and other tests. These test methods help to comprehensively evaluate the performance and reliability of the electro-hydraulic pump and ensure its stability and durability in practical applications.