40results about How to "Meet testing requirements" patented technology

The invention provides a ball dropping testing fixture. The ball dropping testing fixture comprises a base, a fixing part and a locating part, wherein two parallel guide rails and a locating groove parallel to the guide rail are arranged on the base; the fixing part is fixedly arranged at the end of the guide rail and comprises a vertical support, an upper supporting seat horizontally and fixedly arranged at the top end of the support, a clamping base movably connected with the upper supporting seat, and a lower supporting seat fixedly arranged on the upper surface of the base and corresponding to the upper supporting seat; the locating part is movably arranged above the guide rail and comprises a movable support arranged vertically. According to the ball dropping testing fixture, the fixing part and the locating part are arranged on the base, the locating part can move on the base for clamping electronic products with different sizes conveniently, the electronic product can be clamped left and right by the clamping base, and the testing requirement is achieved.

The invention provides a multi-camera reconstruction method based on DLP surface structured light, including: building a four-eye structured light detection system, calibrating the camera, generating Gray code and phase shift code pattern at the PC end, controlling the projection of the DLP projector, and triggering the camera with a level signal Shoot the modulated image of the coding pattern; correct the captured image and perform denoising processing; decode and unwrap the denoised Gray code pattern and phase shift coding pattern respectively to calculate the truncated phase, and combine the results of the two for absolute Calculate the phase value; perform stereo matching to obtain the point cloud information of the object to be measured; filter the point clouds obtained by the two sets of binocular structured light systems, and perform preliminary splicing of the two sets of point clouds through rotation and translation transformation; The point cloud is fused and processed, and the surface is reconstructed. The present invention completes the high-precision encoding process by combining the Gray code with the phase-shift code, improves the accuracy of encoding and decoding and the accuracy of the final reconstruction, and meets the requirements of detection in the industry.

The invention provides an image-type device and a method for quantitative determination of infrared reflectivity and transmissivity. The method comprises firstly calibrating the reflectivity and the transmissivity of calibration cards with a plurality of different reflectivity or transmissivity, secondly collecting reflected and transmitted images of the calibration cards and to-be-detected objects under illumination of infrared LED light sources, and performing linearity interpolation in accordance with the reflectivity values and the transmissivity values of the calibration cards to obtain the reflectivity values and the transmissivity values of the to-be-detected objects at any positions in an imaging area, thereby realizing the quantitative determination of the reflectivity and the transmissivity. According to the invention, the above detection can be carried out for prints printed with infrared ink or white watermark, and thus printing quality can be effectively controlled. The method and the device are convenient and fast, flexible in function, and strong in expansibility, and can adjust optical devices and software configuration of host computers for different applications, thereby achieving detection requirements.

The invention discloses a multistage parallel intensified fixed bed reactor and a using method thereof. The multistage parallel intensified fixed bed reactor comprises a raw material tank, a discharge tank, at least one parallel reaction unit, a circulation pipeline and a circulation pump, wherein each reaction unit comprises a charge pump, a charge heat exchanger, a discharge heat exchanger, a reactor shell and a plurality of fixed bed layer sections installed in the reactor shell; each fixed bed layer section is connected with a charge main pipe via a charge branch pipe; the charge main pipe is connected with the raw material tank; the charge pumps and the charge heat exchangers are arranged on the charge main pipe; each fixed bed layer section is connected with the discharge main pipe via a discharge branch pipe; the discharge main pipe is connected with a discharge tank; the discharge heat exchangers are arranged on the discharge main pipe; one end of the circulation pipeline is connected with the discharge tank, and the other end of the circulation pipeline is connected with the raw material tank; the circulation pump is arranged on the circulation pipeline. The multistage parallel intensified fixed bed reactor is compact in structure, convenient to operate and control, high in reaction efficiency, high in elasticity, convenient to maintain, and is especially suitable for modern large-scale production, and is an upgraded product of the traditional fixed bed reactor.

The invention discloses a glycosylated hemoglobin extraction kit and an extraction method, which relate to the field of biotechnology. The extraction kit is composed of cleaning solution A, cleaning solution B, eluent and storage solution, wherein: the components of the cleaning solution A are as follows: buffer solution pH7.0, sodium chloride, potassium chloride, sodium azide; The composition of the cleaning liquid B is as follows: HEPS Buffer, lithium chloride, magnesium sulfate, TCEP; the composition of the eluent is as follows: ammonium sulfate, ammonium chloride, triton, ethylene glycol; the storage liquid The ingredients are as follows: glycerin, TCEP, stabilizer, sodium azide. The invention has low requirements on operating equipment, and the extracted glycosylated hemoglobin can be preserved for a long time.

Surface plasma coupling fluorescence detection apparatus, relating to a fluorescence detection apparatus. The invention provides a surface plasma coupling fluorescence detection apparatus with small volume, simple structure, low cost, and high detection accuracy. The device is equipped with a light source, a light source rack, a rotating platform, a proof sample rack, a coupled device, a monochromator, a detector and a control processor. The light source is equipped on the light source rack, and the light source rack and the proof sample rack are equipped on the rotating platform. The coupleddevice is equipped on the proof sample rack. The monochromator is equipped on the side of the rotating platform, which receives fluorescence signal, and is connected with the detector. The detector isconnected with the control processor. The device provided by the invention has the characteristics of compact conformation and miniaturization. Laser pen can be used as light source, with small volume, strong energy, and the laser pen combined with minitype monochromator can be used for realizing instrumentation miniaturization.