6 results about "Concentration Response" patented technology

The invention relates to the field of parameter calibration, in particular to a real-time parameter detection and calibration method and device for a gas sensor. The method comprises the following steps: collecting environmental parameters according to a gas sensor to generate an effective parameter sequence; performing time sequence analysis on the effective parameter sequence to generate a parameter feature set; performing ambient air detection and concentration response stage analysis based on the standard working state, and marking concentration response stages of different gases; performing synchronous positioning and detection interference sensitivity calculation on the parameter feature set based on the concentration response dynamic stage, and generating the detection interference sensitivity of the environmental parameters; original detection parameter calibration is carried out according to the detection interference sensitivity, and a gas detection reference is generated. According to the invention, the accuracy, stability and reliability of gas detection of the gas sensor in a complex environment are improved.

The invention discloses a vaccination concentration confirmation method and system for animal husbandry veterinary epidemic prevention, and relates to the technical field of vaccination concentration confirmation. The vaccination concentration confirmation method for animal husbandry and veterinary epidemic prevention comprises the following steps: acquiring vaccine light detection image data and vaccine state detection data of a set animal husbandry and veterinary epidemic prevention vaccine; analyzing a spectral concentration response characteristic value based on a pre-trained spectral concentration sensing model; vaccine state detection data of set animal husbandry and veterinary epidemic prevention vaccines are analyzed and processed to obtain state concentration induction characteristic values, and the state concentration induction characteristic values and spectral concentration response characteristic values are comprehensively processed to obtain vaccine inoculation concentration mapping values. The set animal husbandry veterinary epidemic prevention vaccine is subjected to concentration confirmation treatment based on the vaccination concentration mapping value, so that the concentration result can be kept stable under the conditions of local abnormal interference, non-uniform dilution and the like, and the reliability of vaccine concentration judgment is remarkably improved.

The invention relates to the technical field of nuclear material analysis, in particular to a plutonium solution specific activity determination method and application, and the plutonium solution specific activity determination method comprises the following steps: taking a plutonium solution with known specific activity A1 as a standard solution, determining the liquid flash counting rate of the standard solution, and recording the liquid flash counting rate as C1; obtaining a second-order conductance spectrum of the standard solution by using an ultraviolet-visible absorption spectrum method, determining the peak area of a characteristic absorption peak of tetravalent plutonium in the second-order conductance spectrum of the standard solution, and recording the peak area as S1; measuring the liquid flash counting rate of the to-be-measured solution, and recording the liquid flash counting rate as C2; obtaining a second-order conductance spectrum of the to-be-detected solution by using an ultraviolet-visible absorption spectrometry, determining the peak area of a characteristic absorption peak of tetravalent plutonium in the second-order conductance spectrum of the to-be-detected solution, and recording the peak area as S2; and calculating the specific activity A2 of the solution to be detected according to the following formula. According to the method, liquid scintillation counting and ultraviolet-visible spectrophotometry are combined, so that combination of activity response and concentration response is realized, and acquisition of isotope composition of a plutonium solution to be detected and complex sample pretreatment are not needed.

This application relates to the technical field of automatic control, and discloses an adaptive PID-based alkaline solution concentration and flow rate regulation system and method. The system includes a data acquisition module for acquiring the alkaline solution concentration at each circulation node; a data processing module for constructing a concentration sequence for each circulation node based on the alkaline solution concentration; a concentration analysis module for calculating the response characteristic index of the alkaline solution concentration based on the concentration sequence of each circulation node; a control strategy module for identifying concentration response anomalies based on the response characteristic index of the alkaline solution concentration and matching corresponding flow control strategies based on the type of concentration response anomaly; and a flow rate regulation module for real-time regulation of the circulating flow rate of the alkaline solution based on the flow control strategy. This application improves the stability and accuracy of alkaline solution concentration regulation by identifying different abnormal states and performing targeted circulating flow rate adjustments.

The invention discloses an electrolyte acid-zinc ratio concentration regulation and control method based on deep learning, and the method comprises the following steps: S1, collecting the operation data of an electrolyte system, and constructing an input data set; s2, inputting the input data set into the improved SSDNet model, and calculating a residual value; s3, identifying a variable type and a concentration response interval corresponding to the residual value; s4, constructing a dynamic weight sensitive input vector, and generating a differential weighted residual value by responding to a dynamic reconstruction function and weighting processing; s5, generating a state feature vector based on the state change rate, the conductivity change trend and the regulation and control frequency; adjusting and responding to parameter configuration of the dynamic reconstruction function, and updating a residual weighting strategy; s6, executing joint training operation; and S7, if the predicted concentration value is not within the set target range, outputting an acid liquid or zinc liquid injection instruction, and completing closed-loop regulation and control of the acid-zinc ratio concentration. According to the invention, high-precision prediction and flexible regulation and control of the acid-zinc specific concentration are realized, and the real-time performance and stability of concentration control are improved.

The invention provides a hydrogel functionalized optical fiber cortisol sensor and a preparation method thereof, and belongs to the technical field of optical fiber biomass sensing. The effective refractive index of the hydrogel film coated on the surface of the optical fiber in the sensing area is changed by utilizing antigen-antibody specific binding, so that the effective refractive index of the sensing arm of the optical fiber Mach-Zehnder interferometer in the sensing area is changed, and the interference spectrum of the sensor is changed; by demodulating cortisol concentration response of a sensor interference spectrum, concentration measurement of cortisol to be measured can be realized, and high-sensitivity and specific recognition of cortisol is realized; in addition, the hydrogel functionalized optical fiber cortisol sensor provided by the invention is stable in structure, high in integration level and high in sensitivity, and can be used for accurately measuring the concentration of cortisol in media such as saliva.