4results about How to "Standardize the testing process" patented technology

This utility model relates to the field of pile foundation testing technology, and discloses a low-strain vibration excitation device for pile foundations, including a main structure, a vibration head, a strain gauge, and a display unit. A mounting frame is provided at one end of the main structure, and a force transmission component is mounted on the mounting frame. The vibration head is connected to the mounting frame for contact with the pile to be tested. The strain gauge is located on the force transmission component and is used to detect the strain value generated by the force transmission component when the vibration head acts on the pile to be tested. The display unit is electrically connected to the strain gauge and is used to display the force value applied by the vibration excitation device to the pile to be tested. The strain value measured by the strain gauge can be used to calculate the magnitude of the reaction force on the force transmission component, and thus the excitation force applied by the vibration excitation device to the pile to be tested can be deduced. The display unit allows operators to intuitively see the excitation force applied in each vibration, facilitating the operator's understanding of the excitation force magnitude, improving the consistency and repeatability of low-strain pile foundation testing, and making the test data traceable.

This invention discloses a method for detecting hexavalent chromium in cement, belonging to the field of cement quality testing technology. The method includes: preparation of standard solution, preparation of colorimetric reagent, plotting of standard curve, cement sample processing, sample determination, and waste liquid treatment. This invention solves the problems of insufficient detection stability, non-standardized operation procedures, and poor environmental performance of existing technologies. It has the advantages of accurate detection, simple operation, and safety and environmental protection, and can be widely applied to cement production quality control and environmental testing scenarios.

The invention relates to the field of catalyst performance evaluation, in particular to a performance evaluation device and method for a carbon-based ozone decomposition catalyst. The device comprises an air generator, a first mass flow meter, an ozone generator, a first switch control valve, a measuring pipe, a second switch control valve and an ozone analyzer which are sequentially connected together through a pipeline, a second mass flow meter is connected in parallel to the pipeline between the air generator and the first mass flow meter and the pipeline between the ozone generator and the first switch control valve through a pipeline; a third switch control valve is connected in parallel on a pipeline between the second mass flow meter and the first switch control valve and a pipeline between the second switch control valve and the ozone analyzer through a pipeline; the device is used for evaluating the performance of the catalyst, the conversion rate and the failure rate are used as key indexes for evaluating the performance of the ozonolysis catalyst, the inlet and outlet concentrations of ozone can be detected in real time, the sample testing error is small, and the rapid evaluation of the performance of the ozonolysis catalyst can be realized.

The invention discloses a novel size detector control method, which comprises a remote data management server module, a detection terminal gateway module, a size detection execution module and a user operation module, and is characterized in that a safety communication service platform is arranged between the remote data management server module and the detection terminal gateway module; the security communication service platform comprises an application layer, a platform layer, a transmission layer and a communication layer, the application layer provides a detection security plug-in SSDK and a detection task management client, the platform layer is provided with capacity interfaces of detection flow management, data synchronization, task scheduling and the like, the transmission layer is based on the P2P technology, the encryption transmission and routing optimization capacity of detection data is achieved, and the communication layer is used for communication with the detection security plug-in SSDK and the detection task management client. And the communication layer comprises a three-network direct connection data channel and an industrial-grade data private line communication service. According to the invention, through fusion design of a secure communication architecture, intelligent voice interaction, workpiece-face dual verification and a high-precision feature extraction technology, security, intelligence, precision and standardization of a detection process are realized.