The dynamometer is mainly used to detect the effective power of various power engines such as diesel engines, gasoline engines, and electric motors. It is an indispensable testing equipment in power engine characteristic tests and efficiency tests of transmission machinery. By digesting and absorbing foreign technology, our country has carried out new optimized design and production, and can now provide a full range of products. As a measuring device, the high precision and automation of a dynamometer are modern requirements. Power. With the improvement of scientific research and production level and the development of science and technology, dynamometer has become a necessary testing equipment for scientific research departments and power machinery production plants. Currently, dynamometers require a higher degree of automation and more accurate precision. The basic principle of a dynamometer is to convert the mechanical energy generated by the prime mover into heat energy, which is then cooled by water and carried away. The energy emitted by the prime mover cannot be recovered, and energy is also consumed during the conversion process. It can only be loaded in one direction, and the loading performance deteriorates when the speed is below a certain value; It cannot be used as a reverse drag device, and additional drag devices need to be configured when conducting engine mechanical efficiency tests. When in use, after connecting to the engine, the torque can be adjusted by adjusting the inlet and outlet water flow, and the power can be calculated by reading the torque and the speed.

      At present, dynamometers require small size, easy installation, simple structure, easy operation and maintenance, high braking torque, high measurement accuracy, stable and reliable operation, magnetic electric speed sensors to achieve high-precision instantaneous speed measurement, and fast load control of electric butterfly valves. This is the only way to meet testing tasks in the fields of motor production, inspection, measurement, etc., with high precision, high reliability, high degree of automation, and high stability. Some companies are constantly innovating and launching new products, such as setting the water inlet directly on the stator and setting a valve on the water inlet to control the water intake of the dynamometer, thereby adjusting the absorption torque of the dynamometer.