DongHua Testing Technology Co., Ltd.

1、Structural mechanical properties research Structural mechanical properties research is mainly used in structural strength test, fatigue test (life evaluation), dynamic characteristics analysis (natural frequency, mode shape, damping ratio, modal stiffness and mass), accurate prediction of the impact of environmental excitation on the structure, etc., is applied to aerospace, vehicles and ships, civil construction, engineering machinery, energy power and other fields indispensable scientific instrument products. 2、Structure safety on-line monitoring and defense equipment Prognostics and Health Management（PHM） Using new technologies such as intelligent sensing, cloud computing, big data ,5G and so on to conduct real-time monitoring, safety assessment and health management of structures such as bridges, large buildings, water conservancy projects, port machinery and major equipment, so as to provide guarantee for the safe operation of major infrastructure and national treasure. 3、Equipment intelligent maintenance management platform based on PHM Shanghai Donghao Test Technology Co., LTD., a wholly-owned subsidiary of the company, combines theintelligent sensing technology, health prediction model and IT technology to form the industrial equipment PHM system, which realizes the equipment fault prediction and health management, big data management and cloud management. Taking the predictive maninetance as the core, Utlizing various functional modules, such as equipment comprehensive manintenance management, the management of the equipment and the spare parts throught the entire lifetime, the digital work order management and the professional effciency and performance index management, PHM-based equipment intelligent maintenance management platform provides professional technical support for enterprises to realize intelligent equipment maintenance management and predictive maintenance, becoming an essential part of smart factory. 4、Electrochemical workstation Jiangsu Donghua Analytical Instruments Co., LTD., a wholly-owned subsidiary of the company, relying on the parent company's nearly 30 years of technology accumulation in the field of testing technology and application, focuses on the research, development, production and application of electrochemical workstations, providing a full range of services to customers. Electrochemical workstation measure the response of the system under the excitation and inplement all kind of scientific calculation basing on previous data. The products are widely used in the electrical analysis of electrode materials/solutions/sensors, corrosion resistance evaluation of materials, catalyst performance test, hydrogen evolution/oxygen evolution test, AC impedance test of single battery/lithium battery stack/fuel cell stack at static or dynamic conditions, etc. It is an essential intelligent test and analysis scientific instrument for electrochemical analysis, corrosion and protection, and performance analysis of various new energy batteries.