31results about How to "The data is accurate and stable" patented technology

The present invention relates to a business department customer evaluation information acquisition and processing method and its system. It is characterized by that several satisfaction degree evaluation keys are set on electronic clerk plate, in the course of handling service the evaluation key selected by customer can be pressed down, the evaluation information can be inputted the electronic clerk plate, then the evaluation information stored in the electronic clerk plate can be transferred into management layer computer by means of handset o other wired or wireless mode, then the management layer computer can be used for accounting, analyzing and comparing and appraising the evaluation informations and creating data base, so that the comprehensive evaluation of customers to every clerk and business department can be obtained.

The invention discloses a testing method for detecting internal ESL of a self-healing type metallized film capacitor. A special short-circuit discharging testing loop is formed by a switching cabinet,a voltage adjusting device,a transformer,a silicon stack,a protecting resistor,a high-voltage switch,a discharging device,a heavy current discharging switch,a current transformer,an oscilloscope,a connecting guiding wire,a tested sample,an accompany sample and the like,and corresponding waveforms are obtained; according to principles of electric and electronic engineering,computing of the ESL of the loop is conducted according to the waveforms,final sample ESL is obtained through a difference method,and the blank of a precise measuring and testing method of ESL of capacitors in current industries is filled.

The invention discloses a drilling fluid parameter measuring device and a control method thereof. The measuring device is characterized in that a Marsh funnel is suspended on a gravity sensor througha support member, and the gravity sensor measures the Marsh funnel and the weight parameter of slurry injected into the Marsh funnel and sends the weight parameter to a circuit control board; the ultrasonic sensor is arranged in the circumference of the Marsh funnel, measures slurry liquid level parameters in different periods in the Marsh funnel, and sends the measured liquid level parameters tothe circuit control board; the circuit control board controls the electromagnetic switch according to the received weight parameter and liquid level parameter of the slurry, and the electromagnetic switch controls circulation of the slurry in the Marsh funnel according to a command of the circuit control board; and the property parameters of the slurry are further calculated. Automatic timing is realized through the circuit control board, and the slurry parameters are automatically received, so that the error of manual measurement is avoided, and the working efficiency is further improved.

The invention relates to a method for measuring steel coil radius of a strip steel reel coiler working line. The method comprises the following steps: coaxially mounting an incremental encoder with a steering roller in front of the coiler; connecting the signal output end of the incremental encoder with the signal input end of a counting module of a PLC; inputting a strip steel thickness parameter value h on the strip steel reel coiler working line into the PLC; when the head of the strip steel arrives at a measuring roller, starting the counting module, reading the number Md1 of pulses which are output from the incremental encoder; substituting the number Md1 of the pulses into a first formula L=Md1*(D*(pi) / n), thereby calculating the length L of the strip steel which passes through the steering roller; and substituting the length L of the strip steel into a second formula R1=[(h*L+(pi)*R0<2>) / pi]<1 / 2>, thereby calculating a real-time steel coil radius R1. The method of the invention has advantages of high speed, high precision, stable operation and accurate data.

The invention discloses a tobacco quality similarity measurement method, which measures the quality similarity of tobacco leaves and other different types of raw materials by constructing a single parameter similarity measurement function and a multi-parameter weight coefficient function. Based on the mean value of quality data of tobacco leaves from the same producing area and grade, this methodeffectively improves the measurement efficiency of tobacco quality similarity, and provides reliable data support for subsequent cigarette formula maintenance, single-material tobacco replacement or new formula research and development.

The invention discloses a method for determining volatile organic compounds in stationary pollution source waste gas. According to the method, a thermal desorption sample inlet and a universal detector (FID detector) are mounted on an existing gas chromatograph-mass spectrometer; high-concentration and conventional-concentration volatile organic compounds can be accurately analyzed on the premiseof saving the investment of instruments and equipment and improving the working efficiency; the high-concentration volatile organic compounds adopt carbon disulfide as a solvent, and liquid sample injection, DB-FFAP (30m * 0.32 mm * 1.00 [mu] m) capillary column separation and FID detector analysis are carried out, and 24 volatile organic compounds including m-xylene and p-xylene can be completelyseparated; methanol is used as a solvent for conventional volatile organic compounds, thermal desorption sample introduction, VF-624MS (60m * 0.32 mm * 1.80 mu m) capillary column separation and massspectrometry are carried out, and the content of the conventional volatile organic compounds can be accurately analyzed. The relative standard deviation of the volatile organic compounds with the conventional concentration is 3%-7%, and the relative standard deviation of the volatile organic compounds with the high concentration is 2%-5%.

The invention discloses a recombinant RSV (Respiratory Syncytial Virus) antigenome plasmid rRSV-EGFP. The sequence of the recombinant RSV antigenome plasmid rRSV-EGFP is shown as SEQ ID No.1. The invention also discloses a recombinant RSV obtained by rescuing the plasmid and application of the recombinant RSV in screening of an RSV resisting drug. A high-throughput screening method for screening the RSV resisting drug comprises the following steps: inoculating a host cell, and adding the recombinant RSV and to-be-screened drugs; detecting the fluorescence intensity of GFP (Green Fluorescence Protein); evaluating an RSV resisting effect of the to-be-screened drugs. According to the recombinant RSV antigenome plasmid rRSV-EGFP disclosed by the invention, interaction of the recombinant RSV for expressing the GFP and the host cell and to-be-screened compounds is utilized; as the expression level of the GFP is closely related to the replication level of a virus, the antivirus effect of the compound can be analyzed by detecting the fluorescence intensity, further a high-throughput drug screening model for the RSV is established, a large-scale drug screening is realized, and a foundation is laid for research and development of the RSV-resisting drug.

The invention provides an ultraviolet and visible spectrophotometer which comprises a light source, a lens, an optical fiber, a collimating mirror, a shading cap, an integrating sphere and a spectrometer. The light emitting wavelength of the light source is within the range of 200 nm to 1000 nm. The light emitted by the light source passes through the lens and then enters from one end of the optical fiber, the other end of the optical fiber is provided with the collimating mirror, the shading cap is arranged between the collimating mirror and a sample to be detected, the light is transmitted by the optical fiber and then is emitted from the collimating mirror in parallel and enters the sample to be detected, and the light is emitted from the sample to be detected and received by the integrating sphere and transmitted to the spectrometer for analysis. The absorbance of a solid sample and a liquid sample can be measured, the shading cap can reduce the influence of ambient light on the instrument, a light path does not need to be sealed in the whole detection process, external light has no influence on the instrument, use is convenient, and data is stable and accurate. Any wave band or full wave band can be analyzed, and tests prove that the integral measurement time is shorter than 1.5 s and the measurement speed is high.

Disclosed is a high-precision film thickness measuring system and method. According to the system, a film thickness meter, an oscillation bag, an encoder and a slip ring are mounted at the top of a rotating shaft of a workpiece frame outside a vacuum cavity, a wafer probe, a quartz crystal and a temperature sensor are mounted on the surface of the workpiece frame inside the vacuum cavity, signals of the wafer probe and the temperature sensor are led out through a vacuum feed-in flange, and the rotating shaft of the workpiece frame drives the components to rotate horizontally. The film thickness meter selects the optimal test position of the quartz crystal according to data of the encoder, performs temperature calibration on the frequency of the quartz crystal according to data of the temperature sensor, accurately calculates real film thickness by using the calibrated frequency, and realizes data transmission with a static industrial personal computer outside the cavity through the slip ring. Therefore, accurate measurement of the film thickness during rotary coating is realized, the influence of temperature is effectively eliminated, and reliable data transmission between moving and non-moving components is ensured.

The invention discloses a novel double-beam water quality multi-parameter testing device which comprises a xenon lamp, a first optical fiber, an optical fiber collimating device, a measuring cell, anoptical fiber coupling device, a second optical fiber and a spectrograph. The light inlet of the optical fiber collimating device is connected with a light outlet of the xenon lamp through the first optical fiber. The light inlet of the measuring cell is connected with the light outlet of the optical fiber collimating device. The light inlet of the optical fiber coupling device is connected with the light outlet of the measuring cell. The light inlet of the spectrograph is connected with the light outlet of the optical fiber coupling device through the second optical fiber. Compared with the prior art, the novel double-beam water quality multi-parameter testing device can improve the comprehensiveness and accuracy of water pollutant monitoring.

The invention relates to a method for measuring sand content of sludge. The method comprises the following steps of drying sludge generated by a sewage treatment plant and measuring water content of the sludge; accurately weighing the dried sludge and burning in a muffle surface to constant weight; adding concentrated acid into the sludge which is burned to constant weight and heating in water bath to react; filtering a reacted solution through quantitative filter paper and fully washing filter residue clean through deionized water; putting the filter residue and the quantitative filter paper into the muffle furnace to be burned to constant weight to obtain pure sand; obtaining the sand content of the sludge through calculation. The method can quickly and accurately measure the sand content in the sludge, provides theoretical basis for urban sludge treatment and has wide application prospect in the fields of environmental protection, solid waste treatment and utilization and the like; the method is safe and simple and has moderate conditions and accurate and stable data; an operation process is easy to control; furthermore, a technological requirement is not high; the method is suitable for accurately measuring the sand content in the sludge for a long time.

The invention discloses an analytical method for pyridine content in a fire retardant. A standard sample employs acetone as a solvent and employs decane as an internal standard substance. By utilizing an HP-1 capillary column and a hydrogen flame ionization detector, the pyridine content in a fire retardant is detected by a gas chromatography and the pyridine in the fire retardant is separated by the gas chromatography. The analytical method is selected out after repeated trial screening. By utilizing an HP-1 capillary column and a gas chromatograph with a hydrogen flame ionization detector, by employing acetone as a solvent and decane as an internal standard substance, accurate quantitative detection analysis of pyridine in a fire retardant product can be carried out, the data is stable and accurate and the method is rapid and convenient.

The invention provides a system for detecting specific ions. The system comprises a central processing module and a sensing module, wherein the central processing module is used for sending a detection instruction for the specific ions; the sensing module is used for receiving the detection instruction and generating a detection current signal formed by the specific ions in a to-be-detected solution according to the detection instruction; the sensing module analyzes the detection current signal to detect concentration information of the specific ions in the to-be-detected solution; or the central processing module receives the detection current signal generated by the sensing module and analyzes the detection current signal to detection the concentration information of the specific ions inthe to-be-detected solution. The system for detecting the specific ions has the advantages that the concentration of each specific ion in a liquid substance is directly measured by using an electrochemical method combined with a solid-state electrode, data is accurate and stable, the measurement range is large, and the measurement accuracy is high.

According to the preparation process and the quality control method, the total content of chlorogenic acid and caffeic acid and the total content of liquiritin and ammonium glycyrrhizinate in the inula type ochre soup are researched for the first time, the dry extract yield is combined, meanwhile, the dry extract yield is taken as main investigation indexes, and the inula type ochre soup formula granules are prepared. The process parameters and conditions of a water extraction process, a separation and purification process, a concentration process, a spray drying process, a forming process and the like in the preparation process of the inula flower and orange soup formula granules are respectively determined, and the preparation process of the inula flower and orange soup formula granules, which is stable and reliable in process operation, reasonable and feasible, is provided; in view of the quality of the finished product of the inula and ochre soup formula granules, the invention also establishes a comprehensive quality control method of high performance liquid chromatography and thin layer chromatography.

The present invention discloses a roughness detecting method for the combined surface of a concrete prefabricated part. The method comprises the following steps of 1) cleaning sundries on the surfaceof a to-be-measured part before the test, selecting a suitable area, painting a layer of demoulding oil on the selected area, and fixing a stainless steel square frame on the area; 2) filling the stainless steel square frame by adopting the plasticine to enabling the parallel and level state of the surface of the stainless steel square frame; 3) removing the stainless steel square frame, and taking down the plasticine attached on the surface of the part; 4) kneading the plasticine into a whole block, weighing the plasticine in the air as m1 and accurate to 0.01 g, placing the plasticine in a mesh basket, placing the plasticine in the distilled water together with the mesh basket, weighing the plasticine in the water as m2 and accurate to 0.01 g, and calculating the roughness of the plasticine. According to the roughness detecting method for the combined surface of the concrete prefabricated part, the roughness of the concrete prefabricated part, in the horizontal, vertical and inclineddirections, can be tested.

The invention discloses an air starting motor test bench, which comprises an air starting motor to be tested, a speed reducer, a torque sensor and a magnetic powder brake, wherein the speed reducer is driven by the air starting motor to be tested, and an output end of the speed reducer and the magnetic powder brake are each connected with the torque sensor. By arranging the speed reducer, the torque sensor and the magnetic powder brake, the air starting motor test bench simulates the whole process of starting an internal combustion engine by the air starting motor in real time. The air starting motor test bench can detect performance parameters of the air starting motor in all aspects such as starting precision, starting revolution, starting torque, starting power and input pressure, and further has the advantages of being convenient to operate, safe, wide in test range, stable and accurate in data, and the like.

The invention relates to the technical field of ultra-fast diagnosis. With regard to the problems of low sensitivity, low space resolution, high-voltage driving required and the like of a traditionalframing image conversion tube, the invention proposes a framing image conversion tube and a framing camera. The framing image conversion tube comprises a framing tube shell and is characterized also by comprising a transmission-type negative electrode microstrip substrate, an electron multiplier and a fluorescent screen which are sequentially arranged on the framing tube shell, the transmission-type negative electrode microstrip substrate can transmit ultraviolet light or soft X ray and is fixedly arranged on the framing tube shell, at least one transmission-type negative electrode microstripis plated on a lower surface of the transmission-type negative electrode microstrip substrate, high-voltage gating pulse generated by a high-voltage pulse generation and transmission system is transmitted on the transmission-type negative electrode microstrip, the electron multiplier is used for multiplying electrons generated by photoelectric conversion when the transmission-type negative electrode microstrip is used as a negative electrode, and the fluorescent screen is used for converting the electros to photons under bombardment of the multiplied electrons, imaging and outputting.

The invention relates to material test equipment and test method, in particular to in-massif large scale pressure test equipment used for large scale material test and a test method thereof. The test equipment comprises a pressure machine set, a test device and a base as well as a cave; wherein the cave is arranged in a massif, the pressure machine set, the test device and the base are arranged in the cave, testing material is arranged on the base, and the pressure machine set also comprises at least one pressure machine arranged at the top part of the cave. The in-massif large scale pressuretest method includes that a place is selected, large scale test equipment is mounted, testing material is conveyed, the testing material is fixed, a pressure device is utilized to test the testing material, and relevant data is recorded. The invention utilizes natural high quality massif to substitute the structural framing of large scale equipment and has the advantages that rigidity is high, fatigue is difficult, cost is low, and the obtained pressure is accurate and stable.

The invention discloses an analytical method for pyridine content in a fire retardant. A standard sample employs acetone as a solvent and employs decane as an internal standard substance. By utilizing an HP-1 capillary column and a hydrogen flame ionization detector, the pyridine content in a fire retardant is detected by a gas chromatography and the pyridine in the fire retardant is separated by the gas chromatography. The analytical method is selected out after repeated trial screening. By utilizing an HP-1 capillary column and a gas chromatograph with a hydrogen flame ionization detector, by employing acetone as a solvent and decane as an internal standard substance, accurate quantitative detection analysis of pyridine in a fire retardant product can be carried out, the data is stable and accurate and the method is rapid and convenient.

The invention discloses a gas chromatographic measurement method for 2-isopropyl-6-methyl-4-hydroxy pyrimidine in an intermediate. According to the gas chromatographic measurement method, the intermediate is dissolved with a methanol solvent, and triphenylmethane is used as an internal standard substance, so that the 2-isopropyl-6-methyl-4-hydroxy pyrimidine is subjected to accurately quantitativedetection and analysis by using an HP-FFAP capillary column and a gas chromatograph with a hydrogen flame ionization detector and adopting an internal standard method; data are stable and accurate, and the method is quick and convenient. A variable coefficient of the method is 0.42%, the recycling rate is 99.22 to 100.32%, and the retention time is 2.306 min.

The invention provides a specific ion detection method and system, a computer readable storage medium and equipment. The method includes the steps of outputting a charge instruction for a controller;after a specific ion detection sensor is charged by the controller, acquiring first detection current output by the controller to the specific ion detection sensor; outputting a discharge instructionfor the controller; acquiring second detection current output by the controller to the specific ion detection sensor when the specific ion detection sensor starts to discharge; analyzing the concentration information of specific ions adsorbed by the specific ion detection sensor according to the first detection current and the second detection current. According to the method, the concentration ofall specific ions in a liquid substance can be directly measured by combining an electrochemical method with a solid electrode, the data is accurate and stable, the measurement range is large, and the measurement precision is high.

The invention discloses a vibrating scouring sensor. The vibrating scouring sensor comprises a fixed bracket and vibrating sensing probes, wherein the top inner side of each layer of the fixed bracket is respectively provided with one vibrating sensing probe. When the vibrating sensing probe is arranged in the water, a stress sensing element in the vibrating sensing probe can be driven by the water stream variation to have vibrating deformation, and whether the probe is placed in the water or not can be judged according to the vibration amplitude and the vibration frequency of the measured stress data; if the vibrating sensing probe is arranged in the soil, the soil is relatively stable, and the stress data obtained by the sensing probe is hardly changed; and the depth of a mud surface can be determined by distinguishing the water and the soil according to the vibration amplitude and the vibration frequency of the stress data. The vibrating scouring sensor is not subject to the interference of factors such as the variation of temperature, has the advantages of no temperature drift and no null drift, is simple to produce and low in cost and can change the measurement precision and the measurement depth range according to the application condition and requirement. When the vibrating sensing sensor is installed in multiple monitoring places, the regional scouring monitoring can be realized.

The application provides a method for measuring the content of cyanate ester monomers. The method comprises the following steps: (1) making standard curves of the concentration X and the peak area Y of a cyanate ester monomer standard liquid: preparing a cyanate ester monomer standard liquid, and obtaining a linear equation of the concentration and the peak area of the cyanate ester monomer standard liquid according to gel permeation chromatographic analysis; (2) preparing a cyanate ester polymer liquid: performing desolvation treatment on a cyanate ester polymer, and then preparing the cyanate ester polymer subjected to desolvation treatment into the cyanate ester polymer liquid which has the same solvent as the cyanate ester monomer standard liquid; and (3) acquiring the content of the cyanate ester monomers: performing gel permeation chromatographic analysis on the cyanate ester polymer liquid to obtain the peak area Y, and acquiring the content of the cyanate ester monomers throughthe standard curves in (1). As desolvation treatment is performed on the cyanate ester polymer, and the monomer liquid and the polymer liquid adopt the same solvent, the measurement result cannot beinterfered by bubbles produced by mixing of different solvents, and accordingly, the measurement result is high in precision and accurate and stable in data.

The invention discloses a level bubble scale wheel disc combined type railway gauging rule. A level bubble and a scale wheel disc are combined together, and the railway gauging rule realizes a measurement function. The railway gauging rule is provided with a horizontal slide block assembly, a scale wheel disc assembly, a handwheel assembly and a turning fixed pulley, the minification of a horizontal slide block is equal to the magnification of the scale wheel disc assembly, and thus measurement accuracy is guaranteed. According to the invention, fewer parts are designed, the structure is simple, the parts are installed inside a ruler body, the bump resistance is high, the performance is stable, there are fewer faults, and the railway gauging rule is particularly suitable for a railway harsh onsite application environment.

The invention discloses a tobacco leaf quality similarity measurement method, which measures the quality similarity of the tobacco leaves to be evaluated and other different types of raw tobacco leaves by constructing a single-parameter similarity measurement function and a multi-parameter weight coefficient function. This method is based on the average value of quality data of tobacco leaves of the same origin and grade, which effectively improves the efficiency of tobacco leaf quality similarity measurement, and provides reliable data support for subsequent cigarette formula maintenance, single tobacco replacement or new formula development.

The invention discloses an online automatic detection device for gravel moisture content of a whole vehicle. The device comprises an upper computer, a main controller and a whole vehicle weighing device, a portal frame is arranged at an inlet of the whole vehicle weighing device, a cargo carrying height sensor is arranged on the portal frame, a vehicle chassis height sensor is arranged below the portal frame, and first detection barriers, width distance measuring sensors and second detection barriers are sequentially arranged on the left side edge and the right side edge of the whole vehicle weighing device. In the whole weighing process, manual intervention is not needed, system automatic recognition, automatic weighing and automatic measurement of the volume and weight of gravel of the whole vehicle are achieved, the moisture content of the whole vehicle can be calculated while empty weighing of the vehicle is completed, unnecessary links are avoided, labor cost expenditure is reduced, data are unified and accurate, and cheating behaviors can be prevented.

The invention discloses a heat transmission bridge type sensor for measuring erosion and deposition depth on the periphery of a bridge steel pipe pile. The heat transmission bridge type sensor for measuring the erosion and deposition depth on the periphery of the bridge steel pipe pile is based on the principle that a heat source and temperature sensing points are located at the two ends of a heat transmission bridge respectively, the heat emitted by the heat source is transmitted to the temperature sensing points through the heat transmission bridge, and when the heat transmission bridge is located in a water body, the heat loss is in positive correlation with the water velocity and is larger than that in a soil body obviously. The heat transmission bridge type sensor for measuring the erosion and deposition depth on the periphery of the bridge steel pipe pile comprises a shell body, a heat emitting block, temperature probes and other components. The heat emitting block is arranged in the center of the side wall of the inner side of the shell body, and the temperature probes are arranged on the middle points of the four edges of the shell body respectively. The heat emitting block is served as the heat source, and the shell body is served as the heat transmission bridge and transmits heat to the temperature sensors (the temperature sensing points). Rated currents are input to enable the heating block to emit heat continuously, and whether the environment where the sensor located is the water body or the soil body can be distinguished simply by measuring the temperature changing speed and the temperature changing range of the temperature probes in the heating process. A plurality of sensors are arranged at the positions of different depths on the pile body of the steel pipe pile, the boundary surface of the water body and the soil body can be distinguished, and the erosion and deposition depth on the periphery of the bridge steel pipe pile can be determined finally.