76results about How to "Reduce detection error" patented technology

The invention provides a mobile positioning method and a radio network controller. The method comprises the following steps of: receiving multiple time advance (TA) values reported by user equipment (UE) and multiple angle of arrival (AOA) values and multiple time deviation (TDEV) values reported by a NodeB in a positioning period; selecting a TA detection algorithm and an algorithm threshold according to the environment of the Node B; calculating the TA detection value according to the multiple TA values, the selected TA detection algorithm and the selected algorithm threshold; and calculating the position information of the UE according to the TA detection value, the multiple AOA values and the multiple TDEV values. The mobile positioning method can effectively improve the positioning precision.

The invention discloses threaded hole detection equipment, which comprises a housing, a base, detachable detection devices symmetrically and fixedly arranged on the base, and a positioning device used for fixing the to-be-detected work pieces, wherein each detection device comprises a die bottom plate, a slide rail fixedly arranged on the die bottom plate, a motor group, and a transmission device for driving the motor group to move on the slide rail; the motor group comprises at least one motor and a thread gauge arranged at the front end of the motor, and the number of the motor is consistent with that of the slide rail; and a control device for controlling the operation of the detection devices is further arranged on the equipment. By adopting the threaded hole detection equipment disclosed by the invention, the detection efficiency can be effectively improved and detection errors can be effectively reduced; and as the detection equipment is electrically controlled, the workload can be effectively reduced and the detection cost can be cut.

The displacement measurement device according to the present invention includes: a metal object movable in a moving direction within a moving plane; a measurement coil arranged such that an opposite area of a measurement coil surface opposite to the moving plane is varied with a movement of the metal object; and a correction coil arranged such that an opposite area of a correction coil surface to the moving plane is not varied irrespective of the movement of the metal object. The measurement coil and the correction coil are arranged such that the measurement coil surface and the correction coil surface are not overlapped with each other with regard to a plane parallel to the moving plane but a range occupied by the measurement coil in a coordinate axis along the moving direction and a range occupied by the correction coil in the coordinate axis are overlapped with each other.

The invention provides an automobile skylight opening detection tool and a method for detecting a skylight profile and gap by the detection tool. The detection tool comprises a frame and a detection block, the detection block is connected with the frame through connection blocks, detection pins are arranged on the periphery of the frame and connected with the frame through the connection blocks, a plurality of positioning blocks are arranged on the periphery of the frame, connected with the frame through the connection blocks and used for axially and radially positioning automobile skylight plates, positioning compression mechanisms are arranged at two adjacent edges of the frame, and peripheral apexes of the frame are provided with reference blocks. The detection tool is placed at the corresponding position of an automobile skylight, a general rule detects whether a skylight opening gap is within a tolerance range or not, a segment difference rule detects whether a skylight opening profile is within a tolerance range or not, and the detection pins detect whether skylight mounting holes are within a tolerance range or not. The detection tool is closely matched with the automobile skylight, light in weight and firm, the detection method is simple to operate, and detection results are accurate.

The invention relates to the field of biological detection, in particular to a color recognition based quantitative measurement method for concentration of a to-be-measured liquid. The method comprises the following main steps: S4, locating information corresponding to a color reaction area and each color block with an image recognition technology, and converting diffuse reflection light information into color coordinates in specific color space; S5, equivalently reckoning diffuse reflection information of the color reaction area and the color blocks, environment illumination and other external factors into equivalent environment illumination on the basis of principles of optics; S7, calculating standard color of the color reaction area; S8, calculating the concentration of the to-be-measured liquid according to the corresponding relation between the standard color of the color reaction area and the concentration of the to-be-measured liquid, and outputting a result. Compared with theprior art, the color recognition based quantitative measurement method for the concentration of the to-be-measured liquid has the advantages that measurement errors caused by equipment and environmentfactors can be further corrected, measurement precision is improved, cost is reduced, and applicability is improved.

The invention relates to an ultrasonic three-dimensional detecting device for a surface crack of concrete and a detecting method thereof, wherein the supersonic three-dimensional detecting device and the detecting method belong to the technical field of engineering ultrasonic nondestructive testing. The ultrasonic three-dimensional detecting device is composed of a bracket (1), bracket supporting legs (2), fixed armrests (3), a leveling instrument (4), a slide block (5), an ultrasonic planar probe (6), a wheel type encoder (7), a slidable power-assisting armrest (8), a slide block center marking point (9), data transmission wires (10) and an ultrasonic instrument (11). The detecting method comprises the steps of preparing equipment, debugging the equipment, arranging field detecting wires, acquiring data, and analyzing and processing the data. The ultrasonic three-dimensional detecting device and the detecting method are advantageous in that small detection error for depth of a shallow crack is realized; large amount of acquired data is realized, acoustic parameters and distance parameters which are acquired are simultaneously recorded through the encoder and the ultrasonic planar probe; and through the acquired data, a three-dimensional coordinate distribution map is drawn on a three-dimensional coordinate system, and objective data can be supplied for scientifically analyzing the forming reason of the shallow crack.

The invention discloses a method for rapidly detecting ion concentration in sweat. Before usage, deionized water is used for cleaning a sweat adsorption layer, and a sweat removing layer is placed ina sweat collection box; before sporting, the surface of skin is covered with the sweat adsorption layer, and after skin perspiration, sweat is absorbed and collected; when a sweat sensor and the sweatadsorption layer are contacted, ion detection is carried out on the sweat of the sweat adsorption layer by the sweat sensor, the sweat is attached on the sweat sensor, a rotating shaft drives the sweat sensor to continuously rotate, and when the sweat sensor is rotated to contact with the sweat removing layer, and the sweat removing layer is capable of absorbing the sweat attached on the sweat sensor. During sporting, detection is carried out on the sweat generated by a sporter in a real-time mode, motion adjusting and electrolyte supplement are timely prompted to the sporter, and body damagedue to body electrolyte loss by copious sweating can be avoided for the sporter.

The invention provides a dish washer, comprising a cleaning tank, cleaning nozzles, a cleaning water supplying part used for providing cleaning water to the cleaning nozzles, a turbidity detecting part which is disposed at the position higher than the highest water level of the cleaning water in a water storage part and is capable of detecting the information related to the turbidity of cleaning water provided by turbidity detecting nozzles being a part of a plurality of cleaning nozzles. The turbidity detecting nozzles comprise a first nozzle used for proving cleaning water to the turbidity detecting part, and a second nozzle used for proving cleaning water at directions different from the first nozzle.

The invention discloses a non-reference evaluation method for quality of a virtual viewing angle synthetic video. The method comprises two modules: a module 1: carrying out twinkled distorted region extraction based on double detections on a to-be-evaluated viewing angle synthetic video so as to extract out all twinkled blocks in the video; and a module 2: carrying out singular value decomposition on the extracted twinkled blocks in each frame and blocks in a previous frame, which are matched with the twinkled blocks, then carrying out normalization on all singular values by utilizing a maximum singular value of each twinkled block, obtaining a distance between each twinkled block and an average value of the normalized singular values of the block matched with the twinkled block, and using the distance as twinkling distorting intensity of the block. An F norm of distorting intensity of each twinkled block is used as a quality score of the block, a sum of the quality scores of all the twinkled blocks in each frame is used as a quality score of a current frame, and an average value of the quality scores of all the frames is used as a final quality score of the video. According to the non-reference evaluation method disclosed by the invention, quality of the virtual viewing angle synthetic video can be evaluated accurately.

The present invention provides a solid rocket propellant combustion surface retreat real-time detection system and method, comprising: a signal generating unit for generating an ultrasonic signal as an original pulse signal; a preamplifying unit for amplifying the ultrasonic signal; The non-destructive testing unit is in contact with the casing of the solid rocket motor, and includes multiple sets of ultrasonic transducer groups arranged at certain intervals, each group of ultrasonic transducer groups has a transmitting transducer for emitting amplified ultrasonic signals and a receiving wear The receiving transducer of the transmission signal passing through the shell; the rear amplification unit, which amplifies the transmission signal; the signal conditioning unit, which converts the transmission signal into a digital signal; and the processing control unit, which processes the digital signal to obtain the propellant burning surface The displacement of the propellant and the burning rate of the propellant, and control the operation of the signal generation unit, pre-amplification unit, non-destructive testing unit, post-amplification unit and signal conditioning unit.

The invention relates to the optical-mechanical-electrical technical field, and particularly relates to a quick detection device and method for the photometric characteristics of a motor vehicle lamp. The device comprises a darkroom and two industrial CCD (Charge Coupled Device) cameras, wherein the darkroom is arranged opposite to a lamp fixing seat, the horizontal center axes of the darkroom and the lamp fixing seat are on the optical axis of the lamp, and an imaging screen is installed in the darkroom via a screen moving mechanism; the two industrial CCD cameras are connected to the upper and lower parts of the darkroom; and the industrial CCD cameras, a driving motor of the screen moving mechanism and a driving motor of an electric turntable are electrically connected with an industrial control computer. The detection method comprises equipment preparation, lamp installation, image acquisition, image processing, sample calibration and database establishment, and lamp photometric characteristic test. According to the device and the method, images are shot by a CCD planar array device, the relation between the illumination of the lamp and the gray value of the shot images is acquired, a database is established by using data obtained by multiple experiments of the lamp calibrated according to the illumination, and then the digital quantity of each pixel is inversed to the illumination of each point by spatial sampling.

The invention discloses an obstacle detection and marking method and device for automatic driving and a storage medium, and relates to the field of automatic driving. The method comprises the following steps: collecting an environment image collected by a camera and a laser point cloud collected by a laser radar; the method comprises the following steps: constructing a pseudo point cloud corresponding to an environment image by performing three-dimensional reconstruction on the environment image; point cloud fusion is carried out on the laser point cloud and the pseudo point cloud to generatetarget point cloud, and the data size of the target point cloud is not smaller than that of the laser point cloud; and the target point cloud is input into an obstacle detector, an obstacle detectionresult output by the obstacle detector is obtained, and the obstacle detector is a detector based on point cloud coding. The embodiment of the invention provides a universal point cloud detection framework, so that image data can also be applied to point cloud detection, and the accuracy of obstacle detection is improved.

The invention belongs to the technical field of gas analysis and detection, particularly relates to fire hazard early warning, and more particularly relates to a multi-gas parallel trace detection fire hazard early warning device. According to a technical scheme, a gas chamber, a power source module and an electronic processing module are mounted in a heat insulating bin, an exciting light module is mounted near a gas inlet of the gas chamber, an optical sensing module is mounted near a gas outlet of the gas chamber, a gas feeding pump is driven by the electronic processing module to feed environment gases into the gas chamber, a part of exciting light energy corresponding to gas absorption wavebands is absorbed by the gases in the gas chamber, the absorption is reflected in a response voltage of infrared sensors of the optical sensing module, and the concentrations of corresponding gases are acquired by calculation by the electronic processing module. The device can achieve fire hazard early warning through trace gas detection, and can play a role of fire hazard early warning for a large-scale electronic device machine room. Compared with the prior art, the device provides long-time calibration means based on assistant light and calibration light, a detection error is corrected by combination of multiple light sources and a detector, and the detection error is further reduced through phase sensitive detection.

The invention provides a fluorescent oxygen probe which includes polymer microspheres copolymerized with a reference probe compound, and a fluorescent oxygen probe compound uniformly dispersed in thepolymer microspheres copolymerized with the reference probe compound. The invention also provides a method for creatively preparing the fluorescent oxygen probe. By copolymerizing the reference probecompound and a polymerized monomer, the microspheres dispersed with the fluorescent oxygen probe compound are prepared and can be used as a fluorescent oxygen probe for use. The prepared fluorescent oxygen probe has a self reference effect, and the problem that a fluorescent probe needs to be recalibrated when a detection device is replaced in traditional fluorescence detection is avoided. In addition, the fluorescent oxygen probe has no high requirements on a detection environment and can be used for detecting the concentration of dissolved oxygen in a dynamic biological environment, such asa water body containing microorganisms, and the error of the detection result is less than or equal to 5% compared with that of a traditional electrochemical detection equipment.

The invention provides a lithium battery allowing the internal temperature and pressure to be detected, belonging to the technical field of battery manufacturing. According to the lithium battery, thetechnical problems that the internal temperature and pressure of an existing lithium battery cannot be conveniently detected, and the like are solved. The lithium battery comprises a battery cell, abase, a cap and a cylindrical shell, wherein the base is fixedly arranged at the lower end of the shell, the cap is fixedly arranged at the upper end of the shell, the battery cell is inserted into the shell, a PCB is arranged at the bottom of the base, and a temperature sensor and a pressure sensor are respectively arranged on one side, facing towards the inside of the shell, of the PCB; and a data transmission wire is connected to the PCB, a through hole is formed in the base, and one end of the data transmission wire penetrates through the through hole and stretches out of the shell. By arranging the temperature sensor and the pressure sensor in the lithium battery, the temperature and the pressure in the shell can be detected in real time, and related numerical values can be transmitted to a detection instrument, so that the internal pressure and temperature parameters of the battery can be timely and accurately evaluated by an operator.

The invention discloses an on-line detection device and method for heavy metals in fruits, and belongs to the technical field of spectral analysis. The device comprises a spectral measurement unit and a control unit, wherein the spectral measurement unit is electrically connected with the control unit; the spectral measurement unit comprises a laser induced breakdown spectral measurement unit and a data detection unit, and the laser induced breakdown spectral measurement unit is electrically connected with the data detection unit; the laser induced breakdown spectral measurement unit comprises a laser device for producing laser light and a focusing lens for enabling the laser light to be focused, and the focusing lens is positioned below the laser device; the data detection unit is used for collecting spectral signals and forming spectral data; and the control unit is used for calculating the contents of heavy metals in sample fruits according to the spectral data. The device disclosed by the invention can avoid measuring errors, has few requirements on the quantity of sample fruits, has development potential in the fields of metallurgy, food quality safety, environment monitoring and the like, and is of practical meaning in promoting the practice of the laser induced breakdown spectral technique.

The invention discloses an automatic sampling device used for urban riverway water quality monitoring. The device comprises a metal shell, wherein the lower surface of the metal shell is provided witha plurality of universal wheels to be placed on the ground; each universal wheel is provided with a brake pad; a control mechanism and a water sample detection mechanism are arranged in the metal shell; a sample reservation mechanism and a sample supply mechanism are arranged in the metal shell; one side of the upper surface of the metal shell is provided with a solar power generation device which can be automatically controlled through a control mechanism; the solar power generation device provides electric energy; the water sample detection mechanism extracts water in the urban riverway, temporarily stores the water and evenly stirs the water; after detection, if the water is qualified, the water is directly discharged, and if the water is not qualified, the sample reservation mechanismis started to carry out sample reservation; after the sample reservation mechanism carries out automatic positioning, a bottle is rotated to an appointed position to carry out sample reservation; andthe sample supply mechanism can clean a pipeline, and then, the sample is introduced into the bottle to reduce errors. The device has the beneficial effects of simple structure and high practicality.

The invention relates to the technical field of ultrasound and power supply, and provides a driving power supply with double-channel current sampling and precise frequency control functions, and a real-time tracking method of the series resonance frequency of a transducer, in order to realize an ultrasonic driving power supply for automatically tracking the series resonance frequency of the transducer. The ultrasonic driving power supply for automatically the tracking series resonance frequency of the transducer provided by the invention comprises the following four parts, that is, the first part is a driving circuit; the second part is a sampling matching circuit; the third part is a signal conditioning circuit; and the fourth part is a micro-control module that is composed of a microprocessor. The ultrasonic driving power supply provided by the invention is mainly applied to the design and manufacturing occasions of frequency-controlled power supplies.

The invention provides a circumferential weld air leakage detection device and detection method compatible with liners with multiple specifications. The device comprises two longitudinal moving mechanisms and a horizontal alignment mechanism capable of driving the two longitudinal moving mechanisms to move close to or far away from each other in a horizontal direction; each longitudinal moving mechanism is responsible for detecting a circumferential weld, and comprises a clamping unit of a scissor structure, lower clamping arms of two clamping arms of the clamping unit are arc-shaped, and thelower end of each lower clamping arm is hinged with a detection cover box; the detection cover box is communicated with a leakage detector via a suction gun pipeline. Compared with the prior art, thedevice can be compatible with circumferential weld detection of liners with multiple specifications, and achieves the flexible requirement design. Meanwhile, the device is simple and compact in structure, avoids the utilization of complex transmission mechanisms, and effectively reduces the detection errors. In addition, the structure is economical and reliable, the repair and maintenance of the equipment and the change of replacement parts are greatly facilitated, and the development of the water heater liner air leakage detection industry is further promoted.

The invention discloses a rapid detection jig for an automotive metal plate punched hole. The rapid detection jig structurally comprises a motor, an adjusting disc, screws, a detection host and a maintaining door, wherein the lower end of the motor is mounted in the upper end of the detection host in a penetration manner, the adjusting disc is mounted in the right end of the detection host in a penetration manner, and the screws are mounted on the outer surface of the detection host and are in threaded connection with the detection host; and an access door is arranged on the outer surface of the lower end of the detection host. A metal plate is reinforced and clamped by virtue of a down-pressing clamping mechanism and a damping mechanism, so that the vibration is reduced, errors produced in the detection process can be reduced, and the detection accuracy is improved; meanwhile, dust on the surface of the metal plate can be eliminated by virtue of the dust removal mechanism, so that thedetection errors can be reduced; and the position of a detection head can be adjusted by virtue of the lifting detection mechanism, a plurality of punched holes in the metal plate can be detected, the metal plate does not need to be picked up to be adjusted, so that the operation is relatively simple and convenient, and the working efficiency is improved.

The invention discloses a method for measuring concentration of passivation tank liquid for galvanization. The method includes steps of (1), preparing a group of standard liquids with gradient concentrations by blue-white passivators; (2), determining refractive index of the standard liquids and drawing a concentration-refractive index variation curve; and (3), determining refractive index of passivation tank liquid to be measured so as to obtain the concentration of the passivation tank liquid according to the concentration-refractive index variation curve. According to variation relation of the blue-white passivators and the refractive index, after the refractive index of the passivation tank liquid is determined, the concentration of the passivation tank liquid can be obtained quickly according to the blue-white passivator concentration-refractive index variation curve which is determined by the aid of the standard passivators. In the measurement process by the method, no reagents are needed, interference of other acid substances can be ignored, and measurement error is low. Accordingly, the method has the advantages of operational simplicity, quick measurement and high accuracy.

Provided is a visual inspection apparatus for a semiconductor wafer, by which a threshold value optimal for inspection can be determined and visual inspection of each chip can be performed based on the threshold value, by obtaining in advance a table indicating a relation between a film thickness of a thin film in specific positions in the wafer and a gradation value for each sample area in the chip, measuring the film thickness of the thin film in the specific positions of the wafer to be inspected before inspecting the chip, and comparing the measured film thickness with the gradation value in the table.

The invention belongs to the technical field of angular position sensors, and particularly relates to a high-speed angular position detection system and a method. The system comprises a signal generation unit, a signal processing unit, a communication module and a controller. The detection method comprises steps that when starting at the kth period, the controller communicates with the angular position sensor, and the controller obtains that the kth angle feedback value is theta<(k)> through the communication; analog-digital conversion is performed on the k-1 th period through an A/D conversion module, an angular value theta<k-1> obtained through calculation of a calculation module is the k+1 period T<k+1>, and assignment is performed on an angular feedback value theta<(k+1)> to be sent through the communication; and sampling calculation is performed on the T<k> period to obtain an angular value theta<k>, after the communication of the theta<k> is finished at the T<k+1> period, assignment is performed on an angular feedback value theta<(k+2)> at the k+2 th period T<k+2>, i.e., theta<(k+2)>=theta<k>. According to the invention, effects on angular feedback signal frequency imposed by speed change are effectively eliminated, and a problem of a sampling lag between front and back signals is effectively solved.

One embodiment of the invention discloses a detection method of a detection device and a detection device. The detection method comprises following steps: obtaining a plurality of first detection dataof a plurality of acquisition devices of a first detection device, wherein the first detection data of the first acquisition devices is used as the standard detection data; processing the standard detection data with the multiple first detection data; obtaining first compensation values corresponding to the plurality of first detection data according to the processing result. The invention provides a detection method of a detection device and a detection device, which can reduce the detection error between different detection devices, improve the accuracy of detection and further simplify thedetection steps when detecting the same measured object.

The invention provides a transaction data risk detection method, a transaction data risk detection device and a server. Based on the method, after a target transaction data group which forms an annular transaction loop and possibly has a preset transaction risk is screened out from a large amount of transaction data, unstructured data and structured data are extracted from the target transaction data group respectively according to a preset extraction rule; calling a preset classification model containing a network model based on a Text CNN-Attention structure to process the two types of data of the unstructured data and the structured data at the same time, so as to obtain a corresponding classification processing result; and determining whether a transaction loop represented by the target transaction data set has a preset transaction risk or not according to a classification processing result. Therefore, whether the transaction loop represented by the target transaction data group really has the preset transaction risk can be accurately determined, the risk detection accuracy of the transaction data is effectively improved, and the detection error is reduced.

Disclosed is a magnetic strength detection device for magnetic charging motor shell, which comprises a base, a stand column, and a Guass meter, a longitudinal feeding rocking base is mounted on the base, a transverse feeding rocking base is mounted on the upper portion of the longitudinal feeding rocking base, a rotary disc is fixedly mounted on the upper portion of the transverse feeding rockingbase, a chuck is mounted on the upper portion of the rotary disc, a spindle box is mounted at the upper end of the stand column, a worm is mounted in the spindle box, a lower pressing rod is connectedwith one end of the worm, a positioning hook is arranged on one side of the spindle box mounted the lower pressing rod, a spindle is mounted on the end side of the spindle box, a toothed ring is surrounded by the position, corresponding to the worm, of the outer portion of the spindle, a clamping plate is arranged in the spindle box, the toothed ring is located between two sets of clamping plates, the Guass meter comprises a display device and a detection probe, the detection probe is fixedly mounted at the lower end of the spindle. According to the magnetic strength detection device for magnetic charging motor shell, the highest value of the detection can be easily determined, the phenomenon that the deviation of the detection result is large is not caused when multiple measurements aremeasured is avoided, and the detection error is reduced.

The invention discloses a detection method of a phenol or aniline compound coupling value. The detection method comprises the following steps of (1) adding a paranitroaniline diazonium salt aqueous solution into a mixture A to form a mixture B, wherein the mixture A is a phenol or aniline compound sample, acetic acid, sodium acetate and water; (2) adding a 2, 4-diaminotoluene water solution into the mixture B. The detection method provided by the invention has the advantages of simple operation, less detection error, less used raw materials, and application to detection of factory production.

The invention provides a method for detecting volatile components in a water-based glue for cigarette. The method concretely comprises the following steps: weighing M1 g of a water-based glue sample,performing membrane filtration on the water-based glue by an ultrafilter membrane, cleaning the ultrafilter membrane with M2 g of anhydrous ethanol or DMF, collecting the obtained filtrate and cleaning solution to obtain a solution to be detected, taking and injecting 1 mL of the solution to be detected into a chromatographic bottle, analyzing the solution to be detected through a gas chromatograph-mass spectrometer to obtain data of various detected components in the sample to be detected, calculating the content W2 of all the detected components in the sample to be detected according to a standard curve, and multiplying the content W2 by a corresponding dilution ratio (M1 + M2)/M1 to obtain the content W1 of all the detected components in the original water-based glue sample, wherein 3M1< M2 < 5M1. The method can be used for detecting various volatile substances in the water-based glue, can provide the quantification information of volatile chemical components affecting the sensoryquality of the cigarette in the water-based glue sample, and has good practical values.

The invention relates to the technical field of automatic laying of composite materials, and discloses an automatic fiber laying prepreg stiffness detection method, which measures the maximum bending force of a multi-layer prepreg lamination through a three-point bending test, amplifies the tiny value of the tow stiffness, reduces the detection error, ensures the measurement precision, and has the advantages of higher detection speed and more visual result compared with an existing method for inspecting the stiffness of the prepreg tow by adopting a suspension method.

The invention discloses a method for measuring non-contact printing ink content in waster paper pulp and a deinking effect evaluation method, comprising: drying and weighing waster paper pulp sample, burning into ash content after charring, and weighing the weight of the ash content; calculating the ash purity Ap in the waster paper pulp; measuring iron content Ia in the ash content, and obtaining the iron content in the waster paper pulp Ip=Ap*Ia; sampling from the waster paper pulp with the known printing ink content Tp', measuring the iron content Ip' in the waster paper pulp, and calculating the iron content It in the printing ink; obtaining the actual printing ink content Tp in the pulp with the relational expression of Tp=Ip/It; respectively measuring the actual printing ink content Tp and T'p in the waster paper pulp before and after flotation; obtaining oven dry stock quantity P and P' before and after flotation by measuring the concentration of the waster paper pulp and weight the mass of the sizing agent; and calculating the actual deinking efficiency of flotation. The invention can be used for accurately quantifying the printing ink content, provides strong technical support for deinking control of waste paper, and gives more accurate evaluation to the deinking effect in the production practice of the waste paper.