1301380071

1301380071 Application Field and Working Principle

The application of 1301380071, also known as Resolver, is broad and diverse. It is widely used in industries such as automotive, aerospace control systems and industrial automation. However, no matter what field the Resolver is used in, its working principle is the same. The following paragraphs will be used to provide an introduction to the application field of Resolver, as well as a explanation of its working principle.

Application Field

Resolver is a kind of angle transducer. It is used to sense the angle of an equipment, converting it to the electrical signal and transmitting it to the controlling system. Thus, the application field of such transducers mostly involves the automation industry, such as engine controlling systems in vehicles, or the winding and traversing systems in looms. What’s more, the Resolver can also be used in robotics and mechatronics.

In the aerospace industry, Resolvers are used on board of airplanes to measure the change in the position of the control surfaces when the pilot manipulates the plane. Such transducers are also often applied along with servo mechanisms, because the input and output signals required by such mechanisms are angular. In the future, advanced Resolvers will be used to provide more accurate and rapid sensing of the angle change, further improving the automation and the safety of such vehicles.

Working Principle

The working principle of Resolver is based on the transformation of electrical signal using the electromagnetic induction method. It mainly includes two parts, a rotating part and a stator part. The rotating part contains a primary winding and a secondary winding set at an angle of 90° from each other. The stator part contains two sets of detecting coils that are stationary and independent from each other.

To detect the angle of the rotor, a sine-wave signal is sent to the primary winding from the signal source. The signal is induced in the secondary winding, and the output is sent to a signal detector. This signal is then amplified and rectified, forming the voltage signal with an amplitude that is proportional to the angle of the rotor. This voltage signal is then sent to the controlling system via a feeding back circuit.