762 results about "Alkali metal" patented technology

The invention relates to a preparation method and system for an atomic gas chamber for sapphire coating, and the preparation method comprises the steps: S1, placing a cleaned atomic gas chamber on a heating base station of a reaction chamber, and filling the reaction chamber with replacement gas to discharge residual gas in the reaction chamber; s2, filling aluminum source gas into the reaction chamber, and carrying out chemical adsorption on the wall surface of the atomic gas chamber to form a first film layer; s3, filling replacement gas into the reaction chamber to discharge residual aluminum source gas in the reaction chamber; s4, filling oxide gas into the reaction chamber to oxidize the first film layer and convert the first film layer into an aluminum oxide film layer; s5, filling replacement gas into the reaction chamber to discharge residual oxide gas in the reaction chamber; and S6, repeating the steps S2 to S5 to form a preset number of aluminum oxide film layers with a preset thickness on the wall surface of the atomic gas chamber so as to form the atomic gas chamber with the sapphire coating film. The anti-shielding capability of the alkali metal atomic gas chamber can be enhanced, and the electromagnetic wave precision measurement performance of the atomic gas chamber is improved.

The invention provides a relaxation time measuring method and system. The relaxation time measuring method comprises the following steps: heating an atomic gas chamber to be measured to a set working temperature, and applying a static magnetic field in a z direction to the atomic gas chamber to be measured; starting the pumping laser light source and the detection laser light source, and performing light path alignment adjustment; the pumping laser light source is used for polarizing alkali metal atoms in the atomic gas chamber to be measured; determining a relaxation time measurement mode according to a relaxation time measurement requirement, triggering a corresponding operation, and collecting a corresponding relaxation signal; the measurement mode comprises at least one of the following modes: an alkali metal electron spin transverse relaxation mode, an alkali metal electron spin longitudinal relaxation mode, an inert gas nucleon spin transverse relaxation mode and an inert gas nucleon spin longitudinal relaxation mode; and fitting the relaxation signal corresponding to the mode to obtain a corresponding relaxation time value. According to the invention, the transverse and longitudinal relaxation time of alkali metal electrons and the transverse and longitudinal relaxation time of inert gas nucleons can be measured on the same machine.

An MCF includes a plurality of cores each extending in a direction along a central axis and a cladding covering each of the plurality of cores. The cladding includes a low refractive index barrier. The low refractive index barrier includes an alkali metal element. A relative refractive index of the low refractive index barrier is lower than an average value of a relative refractive indices of the cladding overall. The core interval is set such that a total sum of the power coupling coefficients between a specific core among the plurality of cores and each of all remaining cores is 2.3×10−4 / km or less.

The invention discloses a rapid enrichment-atomic absorption spectrum analysis method for low-content gold in gold ore, and relates to the technical field of gold ore analysis and detection.The rapid enrichment-atomic absorption spectrum analysis method comprises the following steps that an ore sample and a solid composite additive are mixed and roasted at the low temperature of 500-650 DEG C, and the additive contains alkali metal carbonate and zinc oxide; sulfur fixation, catalytic oxidation of organic carbon and stabilization of volatile elements can be synchronously realized; the method comprises the following steps: roasting gold-loaded activated carbon, dissolving the gold-loaded activated carbon in aqua regia to obtain a to-be-enriched solution, enabling the solution to pass through an adsorption column filled with modified activated carbon, pretreating the activated carbon with a 1-10% ammonium citrate solution to improve the selective adsorption capacity of the activated carbon on gold chloride complex ions, ashing the gold-loaded activated carbon, dissolving residues, fixing the volume, and measuring by using an atomic absorption spectrometry. According to the rapid enrichment-atomic absorption spectrum analysis method for the low-content gold in the gold ore, through cooperation of low-temperature roasting of the composite additive and selective adsorption of the modified activated carbon, the decomposition efficiency and enrichment selectivity of the ore difficult to treat are improved.

The invention belongs to the field of alkali metal batteries, and discloses an alkali metal alloy powder material and a preparation method, application and a product thereof, the alkali metal alloy powder material is alloy powder formed by an alkali metal element and at least one non-alkali metal element, the particle size is 1-100 microns, the atomic ratio of all elements in any single powder is highly consistent with the feeding ratio of raw materials, and the atomic ratio of all the elements in the powder is 1-100 microns. The high reducibility similar to alkali metal is maintained, the electronic conductivity is larger than 0.01 mS / cm, the average chemical valence state is smaller than 0.5 valence, and the electrochemical potential relative to metal lithium or metal sodium is 0-2 V. The preparation method comprises the following steps: heating and melting an alkali metal raw material to form an alkali metal melt, introducing a non-alkali metal raw material into the alkali metal melt, cooling to obtain an alkali metal alloy ingot, and physically grinding the alkali metal alloy ingot in a protective atmosphere to obtain powder with uniform components. The invention aims to provide a high-activity alkali metal alloy material in a powder form so as to fill the blank of the industry.

The invention discloses an intelligent prediction method and system for the alkali metal slagging tendency of a biomass gas coupled coal-fired boiler, and relates to the field of slagging tendency prediction.The intelligent prediction method comprises the steps that flue gas temperature data of a target area of a convection heating surface of the boiler is obtained, and the ash content melting characteristic temperature and alkali metal element content data of mixed fuel entering the boiler are obtained; performing physically constrained ash temperature-liquid phase yield adaptive correlation calculation, calculating coupling adhesion force, generating equivalent adhesion strength distribution of particle surfaces, counting particle turbulence collision physical parameters based on the equivalent adhesion strength distribution of the particle surfaces, and judging effective collision adhesion efficiency based on energy competition. The method comprises the following steps: calculating the agglomeration growth rate of ash particles in a flow field, outputting the spatial growth configuration of ash particle aggregates, carrying out macroscopic mechanical characteristic analysis and bridging stability judgment on an accumulation body at the throat part of the dry bottom hopper according to the spatial growth configuration of the ash particle aggregates, and outputting the blockage risk level of the dry bottom hopper, thereby effectively solving the blockage problem of the dry bottom hopper.

The invention provides an anion-doped perovskite type titanate material and a preparation method and application thereof, the structural formula of the anion-doped perovskite type titanate material is AxByTiOzN1-z, A is an alkali metal element, B is a rare earth element, N is an anion element, 0 lt; x is less than or equal to 1, 0lt; y < = 1, 0lt; z < = 4. The prepared anion-doped perovskite type titanate material is applied to a negative electrode of a lithium ion battery, and compared with a traditional perovskite type titanate material, the anion-doped perovskite type titanate material has better fast charging performance and power characteristics, ultra-long cycle life and excellent safety.

The invention discloses a double-perovskite thin film material, a preparation method thereof and a double-perovskite solar cell, and relates to the technical field of perovskite materials. The double perovskite thin film material comprises A2BCX6 type double perovskite, A is an alkali metal cation, B is a monovalent metal cation, C is a trivalent metal cation, and X is a halogen anion; the additive is a compound comprising a benzene ring and at least two sulfydryl substituted at different positions of the benzene ring. According to the embodiment, the composite center of the interior and interface of the double-perovskite thin film material can be reduced, the nucleation density in the preparation process of the double-perovskite thin film is reduced, the double-perovskite film layer has high crystallinity and larger grain size, the grain boundary in the film layer is reduced, the grain boundary defect is passivated, and the performance of the double-perovskite thin film is improved. And the photoelectric conversion efficiency of the solar cell containing the double perovskite thin film material can be improved.

The chemical general formula of the layered oxide is Nan [AaCub] NicMndO2, Cu, Ni and Mn exist in a transition metal layer, and Na and A are metal elements in an alkali metal layer; ni and Mn are matrix elements forming the layered oxide, and Cu and A are co-doping elements; wherein the element A is selected from metal elements which are within the ion radius range and only have one valence state, and is distributed in IA and IIA main groups and IIB and IIIB subgroups in the periodic table of elements, and the configuration of a d electron orbit is d0 or d10. The invention also discloses a sodium ion battery using the layered oxide as the positive electrode material, an A element having strong interaction with oxygen is introduced into an alkali metal layer, and a small amount of Cu is supplemented to modify a transition metal layer, so that the structural stability of the layered oxide as the positive electrode material is synergistically enhanced; and the sodium ion battery shows excellent cycling stability and rate capability.

The application relates to a modified lithium-rich manganese-based material, a preparation method thereof, a positive plate and a battery. The modified lithium-rich manganese-based material comprises a double-alkali-metal manganese-rich matrix, and the expression of the double-alkali-metal manganese-rich matrix is as follows: Li 1+x Na z Mn a Co b Ni c M 1‑a‑b‑c O 2+x+z‑y D y ; wherein, 0

The invention relates to the technical field of lithium ion batteries, in particular to a doped lithium-rich manganese-based positive electrode material and a preparation method thereof, the molecular formula of the doped lithium-rich manganese-based positive electrode material is LiaNibCocMndAWBxCyDzO2, 1.13 < = a < = 1.20, 0.10 < = b, c and d < = 0.80, 0.001 < = w, and x, y and z < = 0.03; wherein A is one or more of high-valence transition metal elements such as W < 6 + >, Mo < 6 + >, Ta < 5 + >, Nb < 5 + > and Ti < 4 + >, B is one or more of rare earth elements such as La < 3 + >, Y < 3 + > and Ce < 4 + >, C is one or more of alkaline earth elements such as Sr < 2 + >, Mg < 2 + > and Ba < 2 + >, and D is one or more of alkaline metal elements such as Li < + >, Na < + > and K < + >. According to the technical scheme, the synergistic effect of multiple elements is achieved, the comprehensive performance such as the first coulombic efficiency and the cycling stability of the lithium-rich manganese-based positive electrode material can be remarkably improved, the preparation method is simple, the lithium-rich manganese-based positive electrode material can be prepared through simple mixing and multi-element synergistic doping solid-phase sintering, the requirement for equipment is low, and the application range is wide. And large-scale popularization of the process is facilitated, and the market competitiveness of the product is improved.

The invention provides an evaporation section simulator, a visual test section and a visual test system. The evaporation section simulator comprises a light-transmitting bearing container, at least one supporting piece and a liquid absorbing core. The light-transmitting bearing container is provided with a containing cavity used for containing a liquid metal working medium. The at least one supporting piece is arranged on the light-transmitting bearing container and located in the containing cavity; the supporting piece is located on the heat conduction wall of the light-transmitting bearing container, and the heat conduction wall faces the heating piece. The liquid absorbing core is separably arranged on the top of at least one supporting piece. The evaporation section simulator provided by the invention is simple in structure. The supporting piece is arranged on the heat conduction wall and close to the heating piece, the heat transfer characteristic of the alkali metal heat pipe under the real working condition is easily simulated, and the generation process and the triggering characteristic of boiling criticality are conveniently observed and researched.

This invention discloses a doped and optimized ultra-low attenuation single-mode optical fiber, comprising a core, an inner cladding covering the core, and an outer cladding covering the inner cladding. The fiber fabrication method includes the following steps: 1) selecting a glass tube and a solid glass rod, and fitting the glass tube over the solid glass rod; 2) welding quartz rods to both ends of the glass tube; 3) placing the glass tube in a graphite furnace and doping the inner surface of the glass tube and the outer surface of the solid glass rod with alkali metals; 4) controlling the pressure and temperature inside the graphite furnace to fuse the glass tube and the solid glass rod into a single unit, forming the core; 5) forming an inner cladding around the core, followed by forming an outer cladding, to obtain the ultra-low attenuation single-mode optical fiber. The core obtained by this invention has the characteristics of large outer diameter, low hydroxyl content, high potassium concentration, and good longitudinal uniformity. By selecting appropriate inner and outer claddings to fabricate the optical fiber, the resulting fiber exhibits extremely superior ultra-low loss performance.

The application belongs to the field of fine chemical industry and environmental protection, and particularly relates to a method for preparing metal triflate by using high gravity reaction. The method comprises the following steps: 1, using trifluoromethylsulfonyl chloride and anhydrous HF gas as raw materials to generate trifluoromethylsulfonyl fluoride gas; 2, performing gas-liquid contact reaction of the trifluoromethylsulfonyl fluoride gas with an alkali metal solution to obtain a mixed solution; 3, performing solid-liquid separation on the mixed solution by using a filter press, and the liquid phase is a triflate salt solution; 4, drying the triflate salt solution by using a spray dryer to obtain a solid-phase product triflate salt. The method uses trifluoromethylsulfonyl chloride and anhydrous HF as raw materials to replace triflic acid in the traditional method, and utilizes high gravity reaction, so that the production cost is greatly reduced. The process is simple, the obtained product triflate metal salt has low impurity content, is superior to the industry standard, the process is zero emission, and has good economic value and social value.

In a general aspect, antirelaxation coatings are disclosed for coating the interior surfaces of vapor cells. In certain aspects, a vapor cell includes a dielectric body having interior and exterior surfaces. The interior surface defines a cavity in the dielectric body, and the exterior surface defines an opening to the cavity. The vapor cell also includes an antirelaxation coating that is disposed on the interior surface of the dielectric body and includes an organosilane material. The vapor cell additionally includes a vapor or a source of vapor residing in the cavity as well as an optical window that covers the opening to the cavity. The optical window has a surface bonded to the exterior surface of the dielectric body to form a seal around the opening. The vapor or the source of vapor includes alkali metal atoms.

The application belongs to the field of optical precision manufacturing, and relates to a bottom-up atomic gas chamber manufacturing device and manufacturing method. The device is composed of a vacuum cavity, a pumping pipeline, a gas inlet pipeline, a discharge electrode plate set, an insulating support, a gas chamber, a laser, an alkali metal source and a vacuum gauge. The device is used for manufacturing the atomic gas chamber from bottom to top, and can be used for preparing various gas chambers with different gas pressure ratio requirements, thereby helping to realize customized preparation. The device reduces the disadvantages of impurity adsorption on the inner wall of the gas chamber and reduces uncontrollable risks. The device has high integration, high preparation efficiency and large secondary development space, and is favorable for accelerating the technical iteration of the atomic gas chamber and the cross-generation development of key technologies such as nuclear magnetic resonance gyroscopes, atomic clocks and magnetometers.

This invention provides a fast frequency closed-loop control method and system for an alkali metal atomic magnetometer laser, comprising: setting the laser current and laser temperature, calculating and obtaining the laser frequency closed-loop control signal SigX; and controlling the laser frequency based on the offset value of the frequency closed-loop control signal SigX and the correlation function f(I) = φ(I, SigX) between the current value and SigX. X The process involves calculating and obtaining the current adjustment value ΔI0, which is then directly applied to the laser current. The difference between the current adjustment value I1 and the set value I0 is calculated as ΔI1. Based on the correlation function f = φ(f(I), f(T)), the temperature change ΔT1 corresponding to the current change ΔI1 is calculated. This temperature adjustment ΔT1 is then applied to the laser temperature. By adjusting the laser temperature to T1, the laser current value is changed back from the adjustment value I1 to the initial set value I0. This invention addresses the problem in existing technologies where using laser current as a feedback signal for closed-loop control of laser frequency easily affects the laser's performance and consequently its lifespan.

The utility model discloses a code disc for a reflective encoder, which relates to the technical field of encoder equipment and comprises a glass code disc, a low-reflection film is fixedly connected to the surface of the glass code disc, and a high-reflection film is fixedly connected to one side, far away from the glass code disc, of the low-reflection film. The low-reflection film is formed by plating acid-resistant alkali metal and metal oxide through a vacuum coating machine, the acid-resistant alkali metal comprises niobium, molybdenum, tantalum and hafnium, one of the niobium, the molybdenum, the tantalum and the hafnium is short for H, the metal oxide comprises sio2, sio, al2o3 and zro2, one of the sio, the al2o3 and the zro2 is short for L, and the plating sequence of the acid-resistant alkali metal and the metal oxide is LHLHLHLHLHL, and after the thickness of each layer of the acid-resistant alkali metal and the metal oxide is optimized, the thickness range is 10-150nm, so that the problems that the performance of a traditional material cannot reach an ideal level and the overall effect and the accuracy of equipment are reduced when the traditional glass code disc is in a working environment under high-intensity light or in a scene requiring high reflectivity are solved.

An alkali-metal removal system and method for in-situ vapor phase removal and downstream reclamation of metallic lithium from reusable lithium deposition process kit parts are provided. The system and method include preparing a cleaning gas containing vapor phase fluorinated alcohol. The system and method further include exposing parasitic lithium deposits to the cleaning gas containing the vapor phase fluorinated alcohol and etching metallic lithium from parts coated with parasitic lithium deposition. The system and method further include collecting reaction byproducts and unreacted cleaning gas. The system and method further include separating lithium compounds from the reusable cleaning gas.

This invention discloses the application of a positive electrode additive, a positive electrode active material, a positive electrode sheet, a solid-state battery and its preparation method, and an electrical device, relating to the field of solid-state battery technology. The positive electrode additive comprises a conductive layered substrate and alkali metal ions. The conductive layered substrate has a multi-layered sheet structure, each sheet structure comprising a polymer chain. Every two adjacent sheet structures are connected by a polyoxometalate crosslinking agent, and alkali metal ions are at least doped between adjacent sheet structures. Using this positive electrode additive to prepare the positive electrode active material improves the specific capacity of the positive electrode and the overall battery, solving the problems of difficulty in conducting electrons and ions in the positive electrode of solid-state batteries, as well as the high additive content. Furthermore, the positive electrode additive has a layered structure and easy slippage characteristics, reducing the contact resistance between the positive electrode active material and the additive, and enabling close adhesion between the positive electrode material and the electrolyte under relatively low external pressure.

The purpose of the present disclosure is to provide an article comprising a surface treatment layer having favorable durability.　This article comprises a base material (A), a water and oil repellent layer (C), and a silicon oxide layer (B) which is disposed between the base material (A) and the water and oil repellent layer (C) and contains alkali metal atoms. In the silicon oxide layer (B), the average value of the concentration of alkali metal atoms in a region having a depth of 0.1-0.3 nm from a surface in contact with the water and oil repellent layer (C) is 1.4×1018 atoms / cm3 to 2.6×1020 atoms / cm3. The water and oil repellent layer (C) is formed from a silane compound containing an Si atom to which a hydroxyl group or a hydrolyzable group is bonded, and the structure of the silane compound does not include a fluorine atom.

The invention discloses an integral pouring method and structure of a blast furnace hearth for replacing a cooling wall. A lining body formed by integrally pouring a high-thermal-conductivity amorphous refractory material is directly arranged on the inner side of a furnace shell; a plurality of hole channels are formed in the furnace shell, cooling elements are arranged in the hole channels, one end of each cooling element is embedded into and penetrates through the lining body and is in close contact with the lining body, a cooling wall is omitted, air gap thermal resistance is avoided, the cooling elements are in direct contact with a high-thermal-conductivity refractory material, heat can be quickly and directly transmitted to a cooling system, and the cooling efficiency is greatly improved; a protective slag iron shell is easily formed on the hot surface of the hearth; the overall pouring structure is free of brick joints, and permeation erosion of molten iron and alkali metal is avoided; the high thermal conductivity ensures that the temperature field of the hearth lining is uniformly distributed, the thermal stress is small, and the ring crack risk of a traditional structure is fundamentally eradicated; if abnormal erosion occurs in a local area, online repair can be performed by adopting a press-in technology, so that the maintenance cost is low, and the service life of the first-generation blast furnace is prolonged.

The present application relates to the field of dephosphorization adsorbent, disclose a kind of modified hydrotalcite adsorbent and its preparation method and application, the adsorbent includes hydrotalcite and / or hydrotalcite-like compound with lamellar structure, and modification component;The modification component includes the first metal component modified on the layer of the hydrotalcite and / or hydrotalcite-like compound, and the second metal component modified in the interlayer of the hydrotalcite and / or hydrotalcite-like compound;Wherein, the first metal component is selected from transition metal and / or rare earth metal;The second metal component is selected from at least one of alkali metal.By metal modification in the layer and interlayer of hydrotalcite and / or hydrotalcite-like compound, the selectivity of adsorbent for phosphate in water can be effectively improved, and the phosphorus capacity is high, and has excellent effect in the application of dephosphorization in complex water.

The application relates to a preparation and application of a molybdenum and indium co-modified cobalt-based catalyst for carbon dioxide hydrogenation synthesis of low-carbon alcohol, belonging to the field of catalysis. Co is used as an active component, In and Mo components are introduced, an alkali metal K additive is introduced, an In and Mo co-modified Co-based oxide precursor is created by adopting a sol-gel method, the precursor is reduced by hydrogen, and is further activated by CO2+H2, so that the In and Mo co-modified Co2C catalyst is obtained; the catalyst is used in a reaction of carbon dioxide hydrogenation for preparing low-carbon alcohol, under the condition that the reaction temperature is 340 DEG C and the reaction pressure is 3 MPa, the carbon dioxide conversion rate is more than 35%, and the low-carbon alcohol selectivity is close to 20%.

A wellbore fluid includes an aqueous base fluid, and a fluid loss material formulated and configured to form a filtercake on surfaces of an earth formation responsive to exposure to a wellbore pressure. The fluid loss material includes at least one polymer, and a bridging material including a fatty acid salt of at least one of an alkali metal, an alkaline metal, ammonium, quaternary ammonium, a Group IIIA element, a Group IVA element, a Group VA element, a Group IB element, a Group IIB element, or a Group VIIB element of the periodic table, the bridging material comprising an oil-soluble material formulated and configured to dissolve out of the filtercake to form channels in the filtercake. Related methods and wellbore fluids are disclosed.

The application discloses a synthesis method of ZSM-23 zeolite molecular sieve with low silicon-aluminum ratio and short-axis nanocrystal morphology. A silica source, an alumina source, a template agent, an alkali metal source and water are mixed to form an initial gel. The initial gel is heated to a first temperature of 120-125 DEG C under sealing and a stirring speed of 100-180 rpm. After constant temperature for 8-10 hours, the initial gel is heated to a second temperature of 135-145 DEG C for constant temperature for 26-36 hours. The product is washed, dried and calcined to obtain the ZSM-23 zeolite molecular sieve. The method can be carried out under low stirring speed and is suitable for industrial amplification.

The application provides a method for synthesizing adiponitrile by selective ammoxidation of epoxycyclohexane. The purpose of the application is to simulate and optimize the process of synthesizing adiponitrile by one-step direct ammoxidation of epoxycyclohexane, and to develop a new type of multiphase composite metal vanadium-based oxide catalyst, which is composed of Co a V b P c Mo d MNOx / TiO2, the active elements of which include vanadium element V, cobalt element Co, phosphorus element P and molybdenum element Mo, M is an auxiliary metal element (Mn, Cr, Fe or Ni), N is an alkali metal (Na, K or Cs); the value range of a is 0.2-1.2; the value range of b is 0.8-1.5; the value range of c is 0.1-0.23; the value range of d is 0.07-0.35; x is the proportion of oxygen atoms required to meet the oxidation state of metal. The catalyst has the advantages of simple preparation, good cycle stability, high yield and the like. The yield and product purity of adiponitrile are improved, the energy consumption in the production process of adiponitrile is reduced, and a breakthrough is realized in the production technology of adiponitrile.

The application discloses an alkali metal hydride, a preparation method and application, and at least comprises the following steps: under a non-active atmosphere, ball milling raw materials containing alkali metal, an organic solvent and hydrogen to obtain the alkali metal hydride. The alkali metal hydride disclosed by the application has uniform particle size and wide application prospects in the fields of hydrogen storage, heat storage and catalytic synthesis; the preparation method is simple, suitable for large-scale and low-cost amplification, and has good development prospects and practical application value.

The application provides a method for homogenizing the polarizability of an atomic sensor based on a singular point super surface, which can effectively improve the spatial uniformity of the pumping light intensity in a micro-nano nuclear magnetic resonance gyroscope, thereby enhancing the uniformity of the atomic polarizability along the propagation direction and improving the average value, so as to reduce the light frequency shift error. While realizing the reflection enhancement of the pumping light, the reflected light has the opposite rotation direction and propagation direction compared with the incident light, and the pumping effect on the alkali metal atoms in the gas chamber is equivalent. Compared with the traditional scheme and the reflection mirror enhancement scheme, the application can significantly improve the detection sensitivity and signal-to-noise ratio of the sensor while keeping the element miniaturized.

A self-calibration atomic wavemeter, including a saturated absorption spectrum optical path based on saturated absorption spectrum to lock the probe laser frequency on cesium atomic energy level transition line; a double-peak spectrum optical path scans the coupling laser frequency after the probe laser frequency is locked by the saturated absorption spectrum, when the probe laser and the coupling laser jointly act on the alkali metal atom and resonantly excite, the electromagnetic induced transparency effect is generated; and when the probe laser is detuned, the probe laser and the coupling laser jointly act on the alkali metal atom to produce non-resonant excitation, and the double-peak EIT spectrum with Doppler frequency shift is generated, based on the linear relationship between the double-peak spectrum interval and the probe laser detuning amount, the wavelength measurement of the current probe laser can be completed, in addition, the double-peak spectrum interval and the atomic energy level transition frequency are compared, and the difference between the two is taken as an error signal feedback to the control end of the probe laser, and the frequency of the probe laser is tuned to the reference frequency benchmark, so that the calibration of the wavemeter can be realized.