36results about How to "Solve the problem of detection accuracy" patented technology

The invention relates to a method for detecting a large-caliber aspheric optical element by utilizing a three-coordinate measuring machine, which comprises the following steps of: processing the data obtained by the three-coordinate measuring machine by utilizing an information processing technology, carrying out error compensation on the measuring head of the three-coordinate measuring machine by adopting a method for compensation by utilizing the measuring head, eliminating the tilting and translation errors of detected data by utilizing a least square method, eliminating the constant term and the tilting term after surface shape data Zernike polynomial fitting by a Gram-Schmidt orthogonalization method, and restoring the surface shape of the detected large-caliber aspheric optical element to realize the purpose of high-precision three-coordinate measurement of the large-caliber optical element. The invention comprehensively considers the error source of the three-coordinate measuring machine of the detected large-caliber aspheric optical element, so that the surface shape quality of the optical element can be more truly and objectively evaluated. The invention is used for processing the surface shape measurement error of the optical element by adopting the measuring-head compensation and least square methods and has important application value for the surface shape detection of the high-precision large-caliber optical element.

A laser scanning device includes a laser output unit, a scanner, a light splitting unit, an imaging compensation unit, a detection unit, and a control unit. A scanning focusing unit included in the scanner focuses a laser beam emitted by the laser output unit to scan an object. A visible light beam received by the canning focusing unit is reflected by the light splitting unit and is incident into the imaging compensation unit. Next, the detection unit receives the visible light beam passing through the imaging compensation unit, and outputs a detection signal. The control unit adjusts the detection signal according to the wavelength of the visible light beam, the wavelength of the laser beam, the scanning focusing unit, and the imaging compensation unit. Therefore, the laser scanning device may compensate the aberration and the dispersion caused when the visible light beam passes through the scanning focusing unit.

The invention discloses an arc fault detection method and device, a computer readable storage medium and a socket. The method comprises the steps of determining feature information of a load to be subjected to arc fault detection; according to the characteristic information of the load, matching a detection model used for carrying out arc fault detection on the load; and carrying out arc fault detection on the load according to the detection model obtained by matching. According to the scheme of the invention, the method can solve a problem that the detection precision is affected when the intelligent socket carries out the arc fault detection of different loads because the waveforms of the currents and voltages are different when different loads operate, and achieves an effect of improving the detection precision of the intelligent socket when the intelligent socket carries out the arc fault detection of different loads.

The invention discloses a method for detecting hydrogen by a palladium nanoparticle discrete film. The method comprises the following steps that: palladium hexafluoroacetone (II), formalin, a quartz glass substrate, high-purity nitrogen and a carbon-supporting film are firstly prepared; under a vacuum environment, palladium hexafluoroacetone (II) is introduced into a reaction chamber as a precursor, and chemical absorption and chemical reaction are generated by the precursor of palladium hexafluoroacetone (II) and the surface of the quartz glass substrate; the formalin as a precursor generateschemical reaction with palladium hexafluoroacetone (II) as the precursor combined with the substrate. The method disclosed by the invention has the beneficial effects that the response rate of a sensing film to the hydrogen can be effectively increased, the phase change phenomenon caused by pure palladium in the high-concentration hydrogen can be effectively avoided, the accuracy of detection canbe ensured, and the problems that a palladium-yttrium alloy film in the existing optical-fiber hydrogen sensor is easily poisoned by oxygen in the air to cause foaming and cracking and the like of the film to further cause zero drift and influence the accuracy of hydrogen detection are solved.

The invention discloses an air conditioner control method and device for improving detection accuracy and an air conditioner. The air conditioner control method comprises the steps that whether a target object exists in the area where the air conditioner is located or not is detected, and if yes, the target area is determined and subjected to air swing control; whether the air conditioner reachesthe preset detection condition is judged; and if yes, the air conditioner is made to stop conducting air swing control over the target area, whether a target object exits in the target area is detected again, and operation of the air conditioner is controlled according to the detection result. According to the air conditioner control method and device for improving detection accuracy and the air conditioner, the problem that in the prior art, overlapping of the air conditioner detection area and the air feeding area can affect the detection accuracy of the detection areas is solved, and the detection accuracy is improved.

The invention discloses a sampling device for import and export animal quarantine, which belongs to the technical field of quarantine sampling devices; a sampling device for import and export animal quarantine, which includes an installation box and anti-skid support feet, and a storage mechanism is installed at the lower end of the installation box , the non-slip support feet are fixedly connected to the four corners of the bottom surface of the installation box, and the top horizontal edge of the back of the installation box is fixedly installed with a connecting hinge. Connection, the front horizontal edge of the installation box and the box cover is fixedly equipped with a locking device; the side wall of the installation box is rotatably connected with a connecting block, and the connecting block is fixedly connected with a strap; the present invention effectively solves the problem of the existing design. The structure is simple, and there will be shaking and collision during storage. In severe cases, the test tube will be broken and the sample will be easily contaminated during the process of storage and transfer to the storage mechanism, which will affect the accuracy of sample detection.

The invention provides a method for determining the content of calcium hydroxide in a flue gas desulfurizer. The method comprises the following steps: adopting an X-ray diffraction method; under the same diffraction condition, respectively determining the integral intensity of a calcium hydroxide phase in a standard sample and the integral intensity of a calcium hydroxide phase in a to-be-tested flue gas desulfurizer sample, and drawing a working curve of the integral intensity of the calcium hydroxide in the standard sample; and according to the determined integral intensity of the to-be-tested sample, finding out the content of calcium hydroxide in the to-be-tested sample from the working curve of the integral intensity of the calcium hydroxide in the standard sample, and calculating to obtain the content of the calcium hydroxide in the to-be-tested sample, so that a judgment basis is provided for the quality and efficient utilization of the flue gas desulfurizer, and the measurement of the calcium hydroxide content in the flue gas desulfurizer is more accurate.

The invention discloses a method for immobilizing hepatitis B antibody on the surface of a medical device, which mainly includes: 1) pretreatment of the surface of the device body, 2) preparation of holes, 3) post-treatment of the surface of the device body, and 4) process steps of fixing the antibody. It is characterized in that: the process steps of immobilizing antibodies are: treating the bracket with holes with citrate buffer solution; immobilizing hepatitis B antibody and incubating; storing at low temperature after drying; providing serum albumin nutrient buffer solution and incubating; cyclically variable temperature incubation ; fluorescently labeled and incubated; washed and allowed to dry. Compared with the prior art, the present invention has the advantages of high firmness of antibody immobilization, high activity of the antibody on the scaffold, and high detection accuracy.

A laser scanning device includes a laser output unit, a scanner, a light splitting unit, an imaging compensation unit, a detection unit, and a control unit. A scanning focusing unit included in the scanner focuses a laser beam emitted by the laser output unit to scan an object. A visible light beam received by the canning focusing unit is reflected by the light splitting unit and is incident into the imaging compensation unit. Next, the detection unit receives the visible light beam passing through the imaging compensation unit, and outputs a detection signal. The control unit adjusts the detection signal according to the wavelength of the visible light beam, the wavelength of the laser beam, the scanning focusing unit, and the imaging compensation unit. Therefore, the laser scanning device may compensate the aberration and the dispersion caused when the visible light beam passes through the scanning focusing unit.

The invention provides a sampling device which comprises an impurity removal part and a sampling part, wherein the impurity removal part is communicated with a sampling port of a sampling apparatus and receives detection gas in the sampling apparatus and removes impurities in the detection gas; an impurity discharge port is formed at the impurity removal part; and the sampling part is communicated with the impurity removal part and used for discharging the detection gas after impurity removal. According to the invention, through the impurity removal part, at the time when the detection gas conveyed by the sampling apparatus is received, the impurity removal part performs impurity removal treatment on the detection gas, the impurities in the detection gas can be discharged in time, and thus the detection gas can meet the requirements of the detection equipment, the contamination of the detection gas caused by impurities is avoided, the integrity and purity of all components in the detection gas are effectively guaranteed, the treatment effect of the detection gas is improved, and the accuracy of the detection result of the detection equipment is enhanced.

The invention relates to a sampling device, in particular to a different-depth sampling device for liquid food detection. The sampling device comprises a liquid storage device and a guide device arranged in the liquid storage device, the liquid storage device comprises a shell, and a sliding cavity, a liquid inlet cavity, a liquid storage cavity and a negative pressure cavity are sequentially formed in the shell. The shell is pressed to enable the piston block to drive the first magnet block to move upwards, the first magnet block moves upwards to drive the baffle on the lower portion to move upwards through magnetic force, the liquid inlet in the bottom is forced to be closed, liquid at different depths can be sampled at a time, and the problems that according to an existing method, liquid needs to be sampled at different depths for multiple times during detection, and the sampling efficiency is high are solved. The liquid is easy to shake in the insertion process, so that the liquid at different depths is mixed, and the detection accuracy is influenced.

The present invention provides a plasma mass spectrometer sample introduction pipe frame structure. The structure comprises a cross lead screw, a nut base, an electric pusher, a lantern ring, a supporting rod, a bayonet, a rotating shaft, a gear 1 and a gear 2. The cross lead screw is installed at the middle portion of the internal portion of a regulation groove, the nut base is installed at the annular side of the cross lead screw, the electric pusher is welded at the upper end face of the nut base, the lantern ring sleeves the annular side of the electric pusher, the supporting rod is weldedat the left portion of the annular side of the lantern ring, the bayonet is arranged at the left side of the upper end face of the supporting rod, the rotating shaft is welded at the middle portion of the lower end face of a carrying frame, the lower end of the rotating shaft is installed at the upper side of the internal portion of a groove, the gear 1 sleeves the lower portion of the annular side of the rotating shaft, the gear 1 is engaged with the gear 2 through a wheel tooth, and the gear 2 is installed at the right side of the internal portion of the groove. The fast take-out function of a sample introduction pipe is achieved, the structure is novel, the sample introduction pipe is prevented from being polluted, and the cleanness of a liquid inlet pipe is ensured.

The invention provides a pillow and method for detecting the head position through Hall sensing devices. The pillow comprises a pillow inner and a plurality of Hall sensing assemblies and a controller which are arranged in the pillow inner; each Hall sensing assembly comprises a Hall sensor and a magnet which are correspondingly arranged in the same vertical direction, an elastic separation distance is formed between each Hall sensor and the corresponding magnet and changes under the head pressure action, the Hall sensors are connected with the controller, and the controller detects the head position according to the output analog quantity of the Hall sensors. According to the pillow, the sensing mode that the Hall sensors are adopted to cooperate with the magnets is sensitive and accurate, the heads of users with the different weights all can enable the elastic separation distances to change, and the Hall sensors can sense changes of the magnetic field intensity. Accordingly, the problem that the detection accuracy is influenced by the different weights of the users is solved, and the advantages of being capable of being applied to the users with the different weights, accurate in detection and wide in applicability are achieved.

The invention discloses an arc fault detection method, device, computer readable storage medium and socket. The method includes: determining the characteristic information of the load to be detected by the arc fault; according to the characteristic information of the load, matching the A detection model for arc fault detection; according to the detection model obtained through matching, arc fault detection is performed on the load. The scheme of the present invention can solve the problem that the current and voltage waveforms of different loads are different, which affects the detection accuracy of the smart socket when detecting arc faults on different loads, so as to improve the arc fault detection of the smart socket for different loads. The effect of the detection accuracy of time.

The invention relates to the technical field of monitoring, and provides a method and a system of construction safety monitoring. The method comprises the steps that each frame of image in collected video data is converted to gray level; difference operation is carried out on the gray level image and a corresponding modeling background; and the image after the difference operation is detected through a preset threshold value. The problem of detecting accuracy on construction environment through an image processing technology is solved, rockfall and vehicle going in and out in a construction tunnel are intelligently detected through a self-adaptation algorithm, working intensity of monitoring personnel can be lowered, and safety of tunnel construction is guaranteed.

The invention discloses a touch-control module, electronic equipment and a pressure calibrating method and belongs to the technical field of touch-control display. The touch-control module comprises a touch screen, a first pressure touch-control sensors, b second pressure touch-control sensors and a touch-control IC (Integrated Circuit), wherein each first pressure touch-control sensor is located in an area where circumferential part of the touch screen is located; each second pressure touch-control sensor is located in an area where an intermediate part of the touch screen is located; and each first pressure touch-control sensor and each second pressure touch-control sensor are respectively and electrically connected with the touch-control IC. According to the touch-control module, the electronic equipment and the pressure calibrating method, the problem that the detection precision of the pressure touch-control sensors for a pressure signal is affected due to deformation of circumferential edge parts of the touch screen of the electronic equipment caused by external factors such as pressing and falling is solved, thus the electronic equipment does not respond the pressure signal generated by deformation, and error response is prevented.