Servo valve testing device and method based on integrated manifold block testing technology

The invention relates to a servo valve testing device and method based on an integrated manifold block testing technology, and the device comprises the steps: providing two types of flows, namely no-load large flow and no-load small flow, for a tested valve according to testing requirements in a testing loop; comprising three directional cover plate type cartridge valve control assemblies, a pressure type cover plate type cartridge valve control assembly, an electromagnetic directional valve, a temperature sensor, a pressure sensor and a flow sensor, and the three directional cover plate type cartridge valve control assemblies are connected with a port A, a port B and a port P of a tested valve respectively. The pressure type cover plate type cartridge valve control assembly is connected with the T port of the tested valve through the fourth direction type cover plate type cartridge valve control assembly. Pressure sensors are arranged on the connecting oil ways, and pressure sensors and temperature sensors a