32results about How to "Novel detection method" patented technology

The invention discloses a method for detecting the liquid level of a medicine bottle based on image processing, which collects a typical medicine bottle image to create a reference template image, establishes a matching template and creates a matching template coordinate system; multiple collected images are detected The image of the medicine bottle is matched with the matching template one by one to obtain the displacement matrix of the image of the detected medicine bottle, and the corrected image of the detected medicine bottle image is obtained by using affine transformation; then the corrected image is segmented to obtain the detection area and extract The shape of the liquid level band; then based on the shape characteristics of the liquid level band, the lowest point of the liquid level is calculated, and the qualification of the medicine bottle is judged according to the relationship between the lowest point of the liquid level and the set threshold value of the lowest point of the liquid level α and the threshold value of the highest point β . The detection speed of the method of the invention is fast, and the total processing time of all images of a single bottle of liquid medicine is within 100ms. Its detection has sub-pixel level accuracy, which eliminates the pixel deviation caused by the vibration of the mechanical platform and greatly improves the detection accuracy.

The invention provides an apparatus for semiquantitatively detecting content of chromium in soil with time being coordinate and a preparation method of the apparatus. The apparatus includes an immersing zone, a climbing zone, a color developing zone, and a holding zone. The climbing zone is located between the immersing zone and the color developing zone; the color developing zone is located between the climbing zone and the holding zone; the immersing zone, the climbing zone, the color developing zone, and the holding zone share a detection substrate; the parts, at the immersing zone and climbing zone, of the upper and lower surfaces of the detection substrate are provided with water absorption fiber layers. The color developing time of the apparatus has a response relationship with the concentration of chromium ion, so that the apparatus can semiquantitatively detecting content of chromium in soil. The invention provides a novel detection method for detection of the chromium ion.

The invention discloses a system and a method for measuring the coplanarity of integrated circuit (IC) pins through multistage reflection and raster imaging. The system mainly comprises an IC chip dead load slant sliding feed mechanism, an external triggering synchronous control circuit, an IC chip pin imagingoptical path system, an image acquisition card and a personal computer (PC)-based intelligent visual inspection system. The IC chip pin imaging optical path system consists of two groups of mutually independent quasi-parallel blue-light light-emitting diode (LED) light sources, two rasters, and a plurality of reflectors and prisms which areorganically combined. A raster stripe images detected from the IC chip pins can be acquired throughthe imaging optical path system; and an image acquisition and analysis software system analyzes the images of the IC chip pins with raster stripes, evaluates the isometry of the pins in the images and the torsional characteristic of the raster stripes, and calculates a corresponding coplanarity error according to a corresponding f function mapping relation between a coplanarity error and the raster stripe curved degree. By the system and the method, two rows of pins of an IC chip are simultaneously imaged, the IC chip pins can be precisely detected through one-time imaging, the structure is compact, and the cost performance is high.

A vertical shaft steel wire rope cage guide sliding sleeve wear amount detection device includes flexible printed circuit (FPC) flat cable units, voltage detection circuit units, a control system, and data display equipment. Two end faces of a vertical shaft steel wire rope cage guide sliding sleeve are provided with the FPC flat cable units, the FPC flat cable units being sequentially attached to end portion surfaces of the sliding sleeve along an outer periphery of a rope hole of a steel wire rope to form an enclosure; each FPC flat cable unit is connected to one voltage detection circuit unit; a signal input end of the control system is connected with the voltage detection circuit units, and a signal output end of a control module is connected to a wireless transmission module; and the data display equipment receives data transmitted by the wireless transmission module.

The invention provides a method for detecting the structural defect of a composite material by using a surface resonance visualization technology. The method comprises: uniformly spreading powder particles or a viscous substance on the surface of a standard composite material, and making the standard composite material produce vibration by using excitation oscillation; generating resonance under the action of a certain frequency so as to make the powder particles or the viscous substance form a specific pattern on the surface of the standard composite material; recording the resonance frequency of the standard composite material and the pattern formed at the resonance frequency; uniformly spreading the same powder particles or the same viscous substance on the surface of a composite material to be detected, making the composite material to be detected produce vibration by using excitation oscillation, and recording the pattern produced by the powder particles or the viscous substance on the surface of the composite material to be detected at the resonance frequency; and comparing the two patterns, and judging whether the composite material to be detected has the structural defect.According to the present invention, with the method, the structural defect of the composite material can be rapidly, simply and completely detected, and the method has wide application prospect in thenondestructive material detection field in the future.

The invention discloses a microwave detection method for missed aluminum foil packages and a detector thereof. Missing of objects in an entire box or bag is judged, and whether the aluminum foil package is missed or not is judged through appropriate electrical signal output by utilizing the reflection and transmission characteristics of microwave signals in specific frequency to different objects, and by detecting the amplitude phase characteristic of echo signals. The signal of the oscillator of the detector enters the arm E of a magic T via an isolator, divided into two equiamplitude inversion signals, and respectively transmitted to two antennas through the two main arms of the magic T, two narrow beams are formed and respectively transmitted into two detected pieces in a detected box,and the reflected wave generated by the two detected pieces enters the two antennas. Because a phase shifter is arranged between one of the main arm of the magic T and the antennas, and hollow wave guide is arranged between the other main arm and the antennas, the two echo signals can return to the two main arms of the magic T in phase by adjusting the phase shift amount of the phase shifter, andcan be combined into one signal which is then output by the arm H of the magic T and enters a wave detector. The invention has the advantages of precise detection, convenient carrying, no radiation and no hazard of noise.