40results about How to "Rapid automated detection" patented technology

The invention discloses an ultrasonic image thyroid nodule intelligent detection system based on a Faster-RCNN. When the adopted Faster-RCNN model is used for carrying out target detection, speed increases and storage space is optimized compared with a regional convolutional neural network RCNN so that rapid and automatic detection of benign and malignant nodules is realized. The features are optimized in the model construction. Key features in an ultrasonic diagnosis standard ACR TI-RADS are calculated before deep learning training, key image feature factors influencing clinical diagnosis aresearched and added to a convolutional neural network feature layer for improvement, a new identification model is constructed, and therefore the accuracy of a prediction result is improved.

The invention discloses a magnetic bead preparing method and application, and belongs to the technical field of magnetic material preparing. The preparing method comprises the steps that firstly, magnetic nanoparticles with the surface functionalization are prepared, then, at least two magnetic nanoparticles with the surface functionalization are connected through a cross-linking agent, and a magnetic bead with the magnetic content of 70 %-98 % is prepared. The problems that the magnetic content of an existing magnetic bead is low, to achieve fast separation, the size of the magnetic bead is greatly increased, and consequently the suspension stability is reduced are solved. In addition, for the captured component biological reaction, particularly for the immunoreaction, the steric hindrance caused by the small magnetic bead is obviously reduced, the capturing capability and the analyzing and detecting sensitivity are improved, the magnetic bead can be better applied to the biological medicine separation and analysis, and the magnetic bead is particularly suitable for separation of cells, bacteria, viruses, DNA/RNA, protein and the like in biological body fluid or reaction fluid and the clinical biochemistry fast automatic detection based on chemiluminiscence electrochemical luminescence and fluorescence.

The invention relates to an appearance defect detection apparatus for a small-modulus gear with a shaft. The appearance defect detection apparatus comprises a gear transferring disc mechanism, a gearfeeding mechanism, a visual detection mechanism and a gear removal mechanism, wherein the gear feeding mechanism, the visual detection mechanism and the gear removal mechanism are circumferentially distributed around the gear transferring disc mechanism, the gear feeding mechanism enables the gear with the shaft to enter the gear transferring disc mechanism in a state that the axial direction is in the vertical direction, the gear with the shaft is transferred by the gear transferring disc mechanism to successively pass through the visual detection mechanism and the gear removal mechanism, andthe gear removal mechanism sorts and blanks the gear with the shaft according to a gear shape visual detection result of the visual detection mechanism. Compared with the prior art, by adopting an automatic feeding way, a visual detection way and an automatic removal way, the appearance defect detection apparatus is high in accuracy, low in power consumption, capable of solving the problems thatthe gear detection efficiency is low, and one set of devices is suitable for detecting a product and the like, capable of realizing the rapid and automatic detection, and widely applicable to the appearance defect detection of various small-modulus gears with the shaft.

The fast detection device for microwave ceramics includes an opening parallel plate resonant cavity with step motor, a SCM, a driver for motor, a VNA, and a computer. This invention can detect target dielectric properties with no harm and high precision.

The invention relates to a method for detecting down cleanliness, in particular to a down-cleanliness rapid detection method based on a photoresistor, which is mainly applied to the rapid detection of the cleanliness in the process of processing and cleaning down and belongs to the technical field of down processing. The method comprises the steps of inputting the settings of a knowledge base and detecting down cleanliness on the basis of the photoresistor, wherein cleaning remaining liquid of down with different cleanliness is collected, irradiated with a 2000LX light beam and then projected on to the photoresistor under the condition with constant current; voltage values at two ends of the photoresistor are measured, taken as cleanliness measurement parameters and input into the knowledge base of an operating system; and current down cleanliness is rapidly obtained by comparing the voltage values at two ends of the photoresistor with the parameters in the knowledge base under the condition with fixed beam intensity and constant current. The method is based on the photoresistor, quantifies the relation between the turbidity of the cleaning remaining liquid and down cleanliness, and realizes the fast automatic detection of down cleanliness.

The invention relates to a thick-wall steel tube internal crack detection method based on surface magnetic conductivity differential measurement. The method includes the following steps that a detected steel tube is magnetized to be saturated through a magnetizer, and maximum local magnetic induction strength distortion is generated in the steel tube or around inner wall cracks; the center line of an eddy excitation coil and the center lines of two detection coils are respectively distributed on the outer surface of the steel tube in the normal direction, the eddy excitation coil generates eddies on the surface layer of the steel tube, the detection coils are distributed in a spatial staggered mode in the direction of a magnetic field and conduct differential output, and differential change of surface magnetic conductivity of the steel tube in the magnetizing direction is detected; the steel tube moves relative to the magnetizer and a detection probe, output signals change, and whether cracks exist in the steel tube or not and the size of the cracks are analyzed according to the output signals. The method achieves high-precision detection of lift-off thick-wall steel tube inner wall micro cracks, has the advantages of being simple in system structure and high in universality and interchangeability, can achieve non-contact quick automatic detection, and is high in signal-no-noise ratio and sensitivity.

The invention belongs to the technical field of aquaculture and discloses an automatic detection device and detection method for the content of ammonia nitrogen and nitrite. The automatic detection device includes an injection component, a buffering component, a reaction component and an observation component which communicated with one another sequentially; a first peristaltic pump is disposed between the outlet of the buffering component and the inlet of the reaction component; a bidirectional peristaltic pump is disposed between the outlet of the reaction component and the inlet of the observation component; the inlet of the reaction component is communicated with a plurality of reagent components; a composite light source and a multi-band photometric sensing module are arranged in theobservation component. With the automatic detection device and detection method for ammonia nitrogen nitrite content of the invention adopted, the content of ammonia nitrogen and nitrite in an aquaculture water body can be simultaneously and rapidly detected, automatic detection can be realized in a whole process, manual intervention is not required, and therefore, labor costs can be effectively saved.

The invention relates to the technical field of in vitro diagnosis, in particular to a treponema pallidum antibody detection kit. The kit comprises treponema pallidum antigen coupling magnetic particles, a treponema pallidum antigen enzyme conjugate and a chemiluminiscence substrate, the treponema pallidum antigen enzyme conjugate is a buffer solution containing a treponema pallidum antigen markedby a biological enzyme, urokinase and calf serum. According to the invention, magnetic particles are used as a solid-phase carrier of the antibody, and a chemiluminescence immunoassay technology is utilized, so that single-person, random, rapid and automatic detection can be realized on a full-automatic chemiluminescence analyzer. Tests prove that adding 0.1-30U/mL of urokinase into the enzyme conjugate has no influence on indexes such as sensitivity, specificity, stability, precision and the like, but the clinical retest rate is greatly improved.

The invention discloses a method for rapidly detecting the total potassium content of urban green land soil by using an archaea molecular marker OTU240. The invention provides a DNA molecule (probe) as shown in sequence 1 in a sequence table. The invention also protects the application of the probe in detection or auxiliary detection of the total potassium content of soil. The invention also protects the application of the probe in comparison of the total potassium content of soil in different land parcels. The method provided by the invention is used for detecting the total potassium content of the soil or comparing the total potassium content of the soil in different land parcels, and has the advantages of small sample demand, no need of pretreatment, short required time, low labor cost and capability of realizing rapid and automatic detection of a large batch of samples. The method has important application and popularization values for evaluation of soil samples.