52results about How to "Judge eligibility" patented technology

The invention discloses an automatic test system for the performance of a multi-position switch, which is characterized by comprising a switch clamp unit, a switch rotation motor unit, a test circuit unit, a PLC (programmable logic controller) unit, a power control unit and a man-machine interaction unit, wherein a test end of the test circuit unit is connected with the switch to be tested, an output end of the test circuit unit is connected with the PLC unit, and a control end of the PLC unit is connected with an input end of the test circuit unit. A test method includes: testing on-resistance and open resistance of contacts at positions by the aid of the test circuit unit; converting corresponding constant current into voltage; comparing the voltage with reference voltage provided by the PLC unit; and outputting decision outcome to the PLC unit. The test circuit unit is used for testing the on-resistance and the open resistance of each contact of the multi-position switch and converting the resistance into the voltage to be tested, so that the electrical performance of the multi-position switch is automatically tested.

The invention discloses a detecting structure, a forming method and a detecting method. The detecting structure comprises a plurality of polygon active areas, a shallow channel isolation structure, an ion mixing area, a gate oxide layer, a polycrystalline silicon layer, a dielectric layer, a first conducting plug, a second conducting plug, a first metal layer and a second metal layer, wherein the polygon active areas are positioned in a first area of a semiconductor substrate; the shallow channel isolation structure is positioned in the first area of the semiconductor substrate and is formed surrounding the active areas; the ion mixing area is positioned in a second area of the semiconductor substrate; the gate oxide layer covers the active area and the shallow channel isolation structure; the polycrystalline silicon layer is positioned on the surface of the gate oxide layer; the dielectric layer covers the semiconductor substrate and the polycrystalline silicon layer; the first conducting plug is positioned on the surface of the polycrystalline silicon layer; the second conducting plug is positioned on the surface of the ion mixing layer, and the first metal layer and the second metal layer are positioned on the surface of the dielectric layer. According to the detecting structure disclosed by the invention, whether a corner of the active area of the detecting structure is damaged or not can be detected by measuring the puncture voltage of the gate oxide layer for one time, and thus whether a corner of an active area of a to-be-detected semiconductor device is damaged or not can be judged.

The invention discloses a chain detection mechanism which comprises a rack, an auxiliary plate, an eccentric transmission assembly, a lifting assembly, a detection assembly and a power assembly. The power assembly comprises a transmission assembly, two chain wheels and two chain wheel seats; the bottom of the auxiliary plate is fixed on the rack; the lifting assembly comprises a fixed plate, a hydraulic cylinder and a top plate; the eccentric transmission assembly comprises an inner fluted disc, an inner gear, a rotating base, a first gear motor, a fixing frame and a rotating shaft; the detection assembly comprises a connecting rod, an upper pressing plate, a lower pressing plate and a distance measuring plate. The mechanism is ingenious in design and convenient to operate.

The invention provides a board inspection method. In order to inspect a board, first, an inspection area including a solder joint is provided with a first light having a first color, a second light having a second color and a third light having a third color at a first inclination angle, a second inclination angle smaller than the first inclination angle and a third inclination angle smaller than the second inclination angle with respect to the board, respectively. Then, a color image of the inspection area is acquired according to the first light, the second light and the third light provided to the inspection area. Thereafter, it is inspected whether the solder joint is good or bad by using a color distribution in the color image. Then, the inspection result is verified by using pre-measured height information of the solder joint. Thus, an inspection error may be prevented.

The invention discloses an encoder detection method. The encoder detection method comprises the following steps: 1, an encoder is mounted on a test bench and dragged by a motor to rotate; 2, a squarewave output by the encoder is detected through a detector; 3, a pulse interval sequence composed of all pulse intervals a1, a2,...a<n> of the square wave in one mechanical rotation cycle is calculated; and 4, all the pulse intervals a1, a2,...a<n> of the pulse interval sequence are subjected to data analysis. The pulse intervals of the output square wave are analyzed through a data analysis method, whether the encoder has defects in the manufacturing process or not is subjected to backward reasoning, and whether the encoder has problems such as bias, waveform distortion and sampling in the manufacturing process or not can be quickly and effectively detected.

The invention discloses a battery pre-treatment method used for a battery system, wherein the method includes following steps: (1) charging a to-be-treated battery cell to enable the SOC of the to-be-treated battery cell to reach a first preset value; (2) allowing the to-be-treated battery cell of which the SOC reaches the first preset value to stand for a first preset time, and meanwhile monitoring voltage reduction of each battery cell to screen-out the battery cells of which the voltage reduction is higher than a first preset voltage reduction; (3) adjusting the SOC of the rest battery cells to a second preset value; (4) assembling the battery cells with the second preset value to form a battery module, and charging the battery module to enable the SOC of the battery module to reach a third preset value; and (5) at a preset temperature, allowing the battery module to stand for a second preset time and detecting the voltage reduction of the battery module to determine whether the battery module is qualified or not. The battery pre-treatment method can accurately determine whether the battery cell is internally shorted or not and can effectively avoid a problem of failure due to the internal short of the battery cell, and can reduce the period of pre-treatment of a battery.

The invention relates to the technical field of manufacturing of protection chains, and in particular relates to a chain crater detection method comprising the steps of S1, stamping a crater of a detection object; and S2, detecting the position of the crater of the detection object, and if the position of the crater of the detection object is cracked, it indicates that the crater is detected to beunqualified. In the technical scheme, the position of the crater of the detection object is stamped, if the crater of the detection object is welded by one or more of cold solder joint and dry joint,the position of the crater is wholly cracked. Therefore, whether the crater is qualified can be easily judged. The defect that when the tensile test mode is used, the detection object needs to be prevented from being deformed under the effect of the tensile force is avoided, and the condition that the detection object flies out and causes a safety accident during a detection process is avoided.

The invention discloses a matching precision detector for an automobile part.A clamping mechanism and a gap detection mechanism of the matching precision detector are installed on a coordinate base, a clamp located at the upper end of the clamping mechanism is used for clamping a to-be-detected part placed on the upper surface of a simulation block base, and a first safety pin is positioned on the lower portion of a go / no go gauge safety pin.A go gauge part and a no-go gauge are sequentially arranged in the middle of the go / no go gauge safety pin from bottom to top, and the upper portion of the go / no go gauge safety pin is provided with a push rod part.The gap detection mechanism further comprises a base, a clamping plate, a left fixed plate and a right fixed plate, wherein the left fixed plate and the right fixed plate are located on the upper surface of the base and parallelly arranged.The rear end of a rotating arm is movably installed between the left fixed plate and the right fixed plate, the clamping plate is installed at the front end of the rotating arm, and four corners of the coordinate base each are provided with a hanging rod.According to the matching precision detector, part gaps can be detected quickly and visually, and the matching precision detector is high in detection reliability and detection efficiency and enables users to quickly and visually judge whether the part is qualified.

The invention discloses a nozzle positioning and measuring device and method, comprising a positioning mechanism, a measuring mechanism and a wire hammer; the positioning mechanism includes an adjusting bolt, a nut, an adjusting plate, an expansion ring and a positioning seat; the top of the positioning seat is fixed with a plurality of The guide column is provided with a positioning hole on the adjustment plate, the positioning hole is matched with the guide column, and there is a certain distance between the adjustment plate and the top of the positioning seat, and an expansion ring is fixed between the adjustment plate and the positioning seat , the adjusting bolt passes through the positioning seat and the adjusting plate in turn from the bottom of the positioning seat upwards, and cooperates with a nut; the measuring mechanism includes a frame for connecting with the top head of the pressure vessel and a detection ruler fixed on the frame. The detection ruler is provided with a plurality of circular grooves, and the circular grooves are used to judge the center of the wire hammer; the wire hammer is fixed at the center of the bottom of the adjusting bolt.

The invention discloses a deviation rate calculation method and a secondary ion mass spectrometry analysis method. Including providing the sample to be tested and the standard sample, and integrating the sample to be tested and the standard sample in the same coordinate system; and performing Gaussian smoothing on the sample to be tested and the standard sample while ensuring that the area and curvature of the area remain unchanged processing; the processed sample to be tested and the standard sample are subjected to a point-to-point division process to obtain a fitting curve; the available area is defined in the fitting curve; the deviation rate is obtained from the available area; the ion implantation angle is obtained The deviation is proportional to the deviation rate, so that it can be clearly judged whether the equipment needs maintenance, saving time and consumables; and it can detect the early minor abnormalities of the ion implanter and give the direction of improvement.

The invention discloses a word pronunciation training system, comprising a data collection module, a data processing module and a data output module; the data collection module is used to collect user voice data; the data processing module is used to judge whether the user voice data is qualified; the data output module is used to for outputting standard voice data. The invention can evaluate the user's voice, and when the user's voice is inaccurate, send out a standard voice for the user to learn.

The invention provides a detection tool for a wiper linkage output shaft and belongs to the technical field of vehicle part detection. The detection tool is used for detecting the eligibility of wiper linkage output shafts. The detection tool comprises a base, a sleeve, a floating block and a position-limiting part. A cover plate connected with the base is arranged above the base. A horizontal channel is formed between the base and the cover plate. The base is provided with an installation hole arranged to pass through the base. The aperture of the hole is larger than the outer diameter of the floating block and the hole is perpendicular to the upper surface of the base. The floating block is arranged in the installation hole. The floating block is provided with a peripheral flange that extends towards the channel. The flange is in sliding fit with the channel. The position-limiting part limits the sliding range of the flange. The floating block is provided with a through hole matched with the sleeve. The sleeve is provided with a detection hole configured to axially pass through the bottom surface of the sleeve. The sleeve is also provided with a position-limiting structure used for limiting the downward-sliding extreme position of the sleeve. According to the technical scheme of the invention, the detection tool can be used for comprehensively detecting the angle and the locating information of the wiper linkage output shaft. The detection accuracy is improved. Meanwhile, the quality problem and the scrapped condition of qualified products are avoided.

The invention discloses a pipe orifice positioning and measuring device and method. The pipe orifice positioning and measuring device comprises a positioning mechanism, a measuring mechanism and a plumb bob. The positioning mechanism comprises an adjusting bolt, a nut, an adjusting plate, an expansion ring and a positioning seat; a plurality of guide columns are fixed to the top of the positioning seat, positioning holes are formed in the adjusting plate and matched with the guide columns, a certain distance is reserved between the adjusting plate and the top of the positioning seat, an expansion ring is fixed between the adjusting plate and the positioning seat, and an adjusting bolt sequentially penetrates through the positioning seat and the adjusting plate upwards from the bottom of the positioning seat, and is matched with a nut; the measuring mechanism comprises a frame used for being connected with a top sealing head of the pressure vessel and a detection ruler fixed to the frame, and a plurality of circular grooves are formed in the detection ruler and used for judging the center of the plumb bob; the plumb bob is fixed to the center of the bottom of the adjusting bolt.

The invention discloses a profile detection device used for automobile parts A clamping mechanism and a gap detecting mechanism are disposed on a coordinate base, and a clamp disposed on the upper end of the clamping mechanism is used for clamping a to-be-detected part disposed on an upper surface of a simulation block base. A lower part of a latch of a go / no go gauge is a first latch, and the middle part of the latch of the go / no go gauge is, from bottom to top, provided with a go gauge part and a no go gauge part sequentially, and the upper part of the go / no go gauge is a push rod part. The gap detecting mechanism further comprises a base, a clamping board; a left fixing board and a right fixing board, which are parallely disposed on the upper surface of the base; and a rotating arm, the rear end of which is disposed between the left fixing board and the right fixing board. The clamping board is disposed on the front end of the rotating arm, and four corners of the coordinate base are respectively provided with a hoisting rod. The profile detection device used for the automobile parts is advantageous in that the gaps between the parts are detected quickly and visually, and the reliability of the detection is high, the efficiency of the detection is high, and whether the parts are qualified is determined quickly and visually.