Introduction to the characteristics of high-precision eddy current dynamometers

　　The eddy current dynamometer is a device that can measure the critical load, strength, toughness, fatigue resistance, as well as cracking and fracture behavior of materials.High-precision eddy current dynamometerThis has enhanced the accuracy and reliability of measurements. Electric vehicles are becoming increasingly popular in people's daily transportation, which has also promoted the research and development of motor speed measurement technology to some extent. The eddy current dynamometer has gradually emerged as a new type of measurement device in this context. This article will explore the benefits of high-precision eddy current dynamometers from multiple aspects.

　　1. High precision: The high-precision eddy current dynamometer uses precision measurement sensors, which significantly improve measurement accuracy compared to the analog output signals of ordinary eddy current dynamometers. The high precision of this device plays a crucial role in the study of material mechanical properties, as it can identify small cracks in materials, calculate their sizes, and accurately measure minor deformation behaviors such as compression, tension, and torsion.

　　2. High resolution: High resolution is another important advantage of high-precision eddy current dynamometers, with a resolution that can reach 1 nanometer. During the measurement process, such as peak force of materials, denser data can make the results more accurate and reliable. Therefore, high-precision eddy current dynamometers can effectively avoid interference from instrument errors in experimental results.

　　3. Multifunctional: The application range of high-precision eddy current dynamometers is very broad, as they can test the strength and toughness of various materials. They are suitable for measuring metals, alloys, ceramics, polymers, and can be tested under different temperature and humidity conditions. Additionally, they can measure different physical properties of materials, such as resistance and conductivity.

　　High-precision eddy current dynamometers mainly include mechanical systems, electrical systems, and signal acquisition systems. However, this article will focus on the electrical system and signal acquisition system.

　　Current transmission system: The high-precision eddy current dynamometer generates a uniform alternating magnetic field through a high-precision current transmission system, controlling the current, magnetic field uniformity, and phase angle.

　　Signal acquisition system: The signal generated by the sensor is converted into a computer-processable signal through an amplifier and transmitted to the computer. The main task of the signal acquisition system is to convert the voltage signal into a digital signal and transmit it to the computer.

　　Sensor: The sensor of the eddy current dynamometer transmits pressure to its highly sensitive internal cable, generating a voltage signal to detect the mechanical properties of the measured object.

　　Reading instrument: The function of the high-precision eddy current dynamometer reading instrument is to convert the voltage signal collected by the sensor into a digital signal and display it.