YIDU Research

        The YIDU Flow Research Institute serves as the core technological engine of YIDU, committed to transcending product boundaries and deeply exploring the limitless potential of laminar differential pressure technology. We work closely with industry leaders, academic pioneers, and research institutions to push the frontiers of fluid measurement and control through customized research, cutting-edge project development, and knowledge sharing. Together, we provide theoretical support and innovative solutions to address the most complex flow measurement challenges across global industries. 

        We fully recognize that fluid measurement and control challenges are unique to each industry. Leveraging our deep expertise in laminar flow technology, the YIDU Flow Research Institute provides deeply customized research and solutions for specific sectors and leading enterprises. From needs analysis and solution design to prototype testing and validation, we are dedicated to transforming your unique requirements into stable and reliable precision measurement capabilities, helping you establish a technological advantage in a competitive landscape. 

        Confronting Field Challenges with Tailored Precision Monitoring Solutions 

        Environmental monitoring and pollution control operations often face complex and demanding field conditions, requiring gas flow monitoring equipment with high portability, stability, anti-interference capability, and adaptability to various corrosive and mixed gases. Fixed or laboratory-based equipment struggles to meet the needs of mobile monitoring, emergency investigations, and on-site rapid diagnostics. 

        The YIDU Flow Research Institute works at the forefront of the environmental protection industry, understanding the unique challenges you face in field operations. We are committed to transforming advanced laminar differential pressure technology into rugged and reliable field tools, providing customized portable gas flow measurement solutions for scenarios such as pollution source tracking, emission compliance monitoring, environmental quality assessment, and emergency response—ensuring accurate, trustworthy, and efficient data acquisition.  

        We focus on providing customized support for the following core environmental applications: 

        - CEMS (Continuous Emission Monitoring Systems): Provides high-precision, corrosion-resistant portable measurement solutions for flue gas sampling and calibration flow, suitable for environmental supervision and on-site verification.  

        - VOCs Leak Detection and Repair (LDAR): Customizes fast-response flow monitoring modules suitable for complex chemical industrial parks, with good compatibility for multiple VOCs gases.  

        - Ambient Air Quality Monitoring Stations & Mobile Monitoring Vehicles: Provides stable, low-flow sampling gas stream control for multi-parameter gas analyzers, ensuring data stability during long-term operation.  

        - Carbon Emission Monitoring & Tracing: Supplies high-precision portable equipment for measuring CO₂, CH₄, and other greenhouse gas flows, supporting carbon accounting and emission reduction verification.

        Core Product Recommendation: P-Series Portable Mass Flow Meters – Designed for the Field 

        The YIDU P-Series Portable Mass Flow Meters are based on the laminar differential pressure principle. When gas is in a laminar flow state, the differential pressure is proportional to the flow rate. The volumetric flow rate is calculated from the differential pressure at both ends of the laminar flow element, and then the mass flow rate is derived using the ideal gas law. It can output both volumetric and mass flow rates simultaneously, meeting the requirement of 16.67 L/min volumetric flow for atmospheric particulate samplers, thus providing an ideal solution for the environmental monitoring industry. These meters are already deployed by most leading domestic environmental protection companies and passed a rigorous 6-month long-term stability test conducted by the China National Environmental Monitoring Centre in 2022, obtaining the official long-term test report (2022-AirFlow-LT01).