In terms of energy transfer, hydraulic technology is roughly in the middle position between mechanical energy transfer and electrical energy transfer.
From the perspective of transmission characteristics, mechanical transmission and hydraulic transmission devices can be said to have fixed characteristics. On the contrary, hydraulic transmission devices are the same as electrical transmission devices and have the characteristics of continuously variable transmission devices. In addition to constant power, they are also easy to achieve characteristics such as constant speed and constant torque.
The hydraulic technology characteristics of the hydraulic test bench can generally be summarized as follows:
(1) Easy to perform continuously variable transmission, with a wide range of speed changes, allowing for easy adjustment of force and torque over a wide range;
(2) Good control performance, that is, force, speed, position, etc. can be controlled correctly with high response speed. In addition, it has good adaptability to other control methods such as electrical and mechanical systems, especially when combined with electrical signal processing, which can achieve excellent response characteristics;
(3) Reliable action and good operational performance;
