4results about How to "Accurate identification and detection" patented technology

The invention belongs to the technical field of valve detection, and discloses a detection device for valve processing and a detection method thereof.The detection device comprises a base, a support is fixedly arranged at the top of the base, a photosensitive assembly is nested in the top surface of the base, and a motor is fixedly arranged at the top of the support. By adapting to the change of the internal size of the to-be-detected valve, when the internal diameter of the valve is changed, the position of the closely attached detection assembly is changed, so that the position of the corresponding laser emitting end is changed, the change of the laser irradiation position is sensed through the light sensing assembly, and the detection of the internal diameter size of the valve is realized; the size change of the pipe diameters at the two ends of the valve is judged by matching the sensing positions of the standard photosensitive area, the inner side photosensitive area and the outer side photosensitive area, the reduced and expanded areas can be accurately detected, the quality condition of the valve can be accurately identified and detected and quickly judged according to the increase or decrease of the local size of the inner wall of the valve, the detection is simple, and the detection efficiency is high. The use effect is good.

The present invention provides a device and method for identifying and detecting coal-rock interface while drilling along a coal seam. The device comprises: a control host and a drilling rig connected to the control host, the drilling rig is connected to a drill rod, and the end of the drill rod is a detection probe while drilling; the detection probe while drilling comprises a probe body, and a retractable elastic wave transmitter, a retractable elastic wave receiving sensor and a control and acquisition circuit board of the detection probe while drilling are provided on the probe body. The present invention uses a drilling rig to push the detection probe while drilling into a borehole, and the detection probe while drilling will automatically and intelligently transmit elastic waves to the top and bottom plates of the coal seam during the pushing and rotating process, and the elastic wave receiving sensor will receive the elastic wave signal reflected back by the top and bottom plates of the coal seam, and calculate the thickness of the top and bottom plates of the coal seam according to the time of the received elastic wave and the elastic wave velocity of the coal seam, so as to realize the identification of the coal-rock interface between the top and bottom plates of the coal seam; and then the thickness of the top and bottom plates of the coal seam can be quickly and accurately detected, so as to realize the identification of the coal-rock interface between the top and bottom plates of the coal seam.

This application relates to a method for detecting paper fibers, comprising the following steps: mixing the paper sample to be tested with a solvent, and dissolving it at a rotation speed of 8000 r / min to 25000 r / min for 1 min to 11 min to obtain a dissolved sample; adding a dye to the dissolved sample to dye the wood and hemp fibers in the dissolved sample to obtain a dyed sample; and performing microscopic detection on the dyed sample to analyze the detection results. Through controllable mechanical shear force, the wood and hemp fibers in the paper sample to be tested can be efficiently and fully dispersed, while minimizing the damage to fiber morphology caused by traditional chemical or high-temperature dissociation methods, laying a physical foundation for subsequent accurate identification. Therefore, this application can rapidly and accurately identify and detect fiber type and proportion through dyeing reaction and microscopic morphology, resulting in more scientific and practical analytical results.

The testing agent for quickly distinguishing true and false inorganic coatings, the preparation method and the testing method are realized by depending on the testing agent for quickly distinguishing true and false inorganic coatings, and the testing agent comprises pure water, calcium chloride, quartz powder and a hardening accelerator. According to the reaction characteristics of the inorganic silicate in the film forming process, the curing speed is increased, the testing agent which can be rapidly reacted and cured with the inorganic silicate and has no influence on emulsion paint or can destroy emulsion film forming is prepared, and then the testing agent is evenly mixed with the testing sample paint according to a specific method and proportion. The true and false inorganic coating can be distinguished according to the curing condition of a certain time. The method can be used for quickly, simply and accurately identifying true and false inorganic coatings, is suitable for testing and identifying in a laboratory, is more convenient for identifying and detecting without experimental instruments, does not need laboratory equipment such as a muffle furnace and a constant-temperature drying box, can obtain an identification result within 4H, and is quick, convenient and accurate.