CN103149119A - Data processing method for hydrogen storage material pressure-composition isotherm test - Google Patents

Abstract

The invention relates to a data processing method, in particular to a data processing method for a hydrogen storage material pressure-composition isotherm (PCT) test, and solves the problems of complexity, low efficiency, inconformity of a directly output data graph to standards required by international paper publication and research reports, and the like in traditional hydrogen storage material PCT curve test data processing by Visual C + +. The data processing method comprises: first analyzing the process of a hydrogen storage material PCT curve test, and establishing a related computational model on the basis, then calculating the true density of hydrogen by Origin C programming, filling in an Origin data sheet with the computational model and test data so as to acquire the hydrogen concentration data of the material, and finally, taking the hydrogen concentration data of the material as an abscissa, adopting hydrogen absorption and desorption equilibrium pressure data as a ordinate to conduct mapping, thus obtaining a hydrogen absorption and desorption PCT curve of the hydrogen storage material. The method provided in the invention can greatly simplify the data processing process of the hydrogen storage material PCT curve test, substantially improves the work efficiency, and at the same time, the output data graph is in line with the general publication standards and can be directly used for paper issuing and research report publication.

Description

The data processing method of a kind of hydrogen storage material pressure-concentration isotherm test

Technical field

The present invention relates to a kind of data processing method, particularly a kind of data processing method for the test of hydrogen storage material PCT curve.

Background technology

PCT curve (pressure-composition isotherm, pressure-concentration isotherm) is the key property curve of research hydrogen storage material hydrogen storage property.Can directly obtain to inhale by it and put hydrogen platform pressure, berm width and slope, lag coefficient, the parameters such as reversible hydrogen adsorption and desorption amount, and then put hydrogen platform pressure according to the suction under different temperatures, and Van ' tHoff formulary regression goes out to inhale hydrogen discharge reaction enthalpy and reaction entropy.These parameters have extremely important theory and actual directive significance to research, the development and utilization of hydrogen storage material.People generally adopt the volumetric method test macro to carry out the test of PCT curve at present.The principle of volumetric method test is by changing the gaseous tension in sample chamber and air storage chamber, extrapolating the variation of hydrogen storage material hydrogen content according to the equation of gas state and law of conservation of mass.Two parameters that can directly obtain by sensor test in the volumetric method test macro are respectively pressure and temperatures, and therefore need to carry out the data processing just can obtain final needed PCT curve.

In traditional hydrogen storage material PCT curve test process, related data are processed and are substantially all completed by Visual C++ software.The shortcoming of this method is that Visual C++ Software Specialty is very strong, very high to user's computer programming Capability Requirement, and process through data the PCT curve map major part finally obtained, is not the final needed figure of user.Origin software is graph visualization and the data analysis software of U.S. OriginLab company exploitation, since 1991 come out, because function is open, easy and simple to handle easy to learn, the output data plot is attractive in appearance, becomes soon scientific research personnel and slip-stick artist's high-level data analysis and drafting instrument commonly used of international popular.Due to international publish thesis and research report in chart generally adopt Origin software to complete, therefore the user will process the PCT curve diagram data obtained by Visual C++ software often derives, then the own needed data plot of output in Origin software.Can cause so whole process more loaded down with trivial details, efficiency is not high.

Summary of the invention

Technical matters: in order to overcome the above-mentioned various shortcomings in traditional hydrogen storage material PCT curve test data processing procedure, the data processing method that the object of the present invention is to provide a kind of quick, efficient, simple and easy to do hydrogen storage material PCT curve to test.

Technical scheme: the data processing method of hydrogen storage material pressure of the present invention-concentration isotherm test is: at first hydrogen storage material is inhaled to the flow process of putting hydrogen pressure-concentration isotherm (test of PCT curve) and analyzed, obtain sequence switch state and the temperature and pressure data time sequence gatherer process of valve, and obtain on this basis the hydrogen concentration mathematics computing model of hydrogen storage material sucking/placing hydrogen amount mathematics computing model and material internal, wherein the calculating of related hydrogen real density adopts the MBWR hydrogen state equation of 32 parameters; MBWR hydrogen state equation is to take pressure as explicit, take temperature and density as independent variable, and its form is $p={\mathrm{\ρR}}_{g}T+\underset{j=1}{\overset{19}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}+\underset{j=20}{\overset{32}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}{e}^{{\mathrm{\γ\ρ}}^2},$ The calculating of real density can be summed up as and asks nonlinear equation so $f\left(\mathrm{\ρ}\right)={\mathrm{\ρR}}_{g}T+\underset{j=1}{\overset{19}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}+\underset{j=20}{\overset{32}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}{e}^{{\mathrm{\γ\ρ}}^2}-p$ Root, the rooting numerical computation method adopted is Secant Method, its initial value is respectively 0～0.002 and ideal gas density, stopping criterion for iteration is f (ρ) |≤10 ^-7, wherein p means the pressure of hydrogen, R _gmean ideal gas constant, ρ means the real density of hydrogen, and T means the temperature of hydrogen, G (j), k _j, m _j, γ means the coefficient of MBWR hydrogen state equation; The test data that then will directly obtain by sensor and the model of setting up by the requirement of Origin software syntax format are filled into respectively in Origin tables of data and Set column values dialog box, after calculating, Origin software obtains hydrogen concentration data in material, the hydrogen concentration data in material of finally take are horizontal ordinate, it is that ordinate is clicked the output that the Plot order realizes hydrogen storage material PCT curve in Origin software that hydrogen balance pressure data are put in suction, with regard to the suction that obtains hydrogen storage material, puts hydrogen PCT curve.

It is the C programmed environment Code builder realization by Origin software that described hydrogen real density calculates, at first according to the computing method of above-mentioned MBWR hydrogen state equation, write out corresponding Origin c program code, then it is copied to the Multiple Document Interface zone into Code builder programmed environment, then click the Build button code is compiled, show compiling...densfororigin.c Linking...Done! in the Output in lower left corner Window frame Printed words, mean this program compilation success, and can be by the Origin software transfer, and the function of hydrogen real density calculation procedure when calling is called dens (p, t).

Described hydrogen storage material sucking/placing hydrogen amount mathematics computing model is Δ n _{h, Sp, 2}=n _{r, 1}+ n _{s, 1}-n _{r, 2}-n _{s, 2}, n wherein _{r, 1}, n _{s, 1}mean respectively air storage chamber and the sample chamber hydrogen atom molar weight in gaseous state when the valve closing between air storage chamber and sample chamber, n _{r, 2}, n _{s, 2}mean respectively air storage chamber and the sample chamber hydrogen atom molar weight in gaseous state when the valve open between air storage chamber and sample chamber; The hydrogen concentration mathematics computing model of material internal is

∑ Δ n wherein _{h, Sp, 2, i}mean to accumulate the atomic mol that hydrogen is put in suction, n _spmean the molar weight of specimen, Sp means sample, and 2 mean that valve is in closed condition, and i means to charge and discharge hydrogen to sample the i time.

The described model of setting up by the requirement of Origin software syntax format comprises the hydrogen concentration computation model of hydrogen storage material sucking/placing hydrogen amount computation model and material internal, and the concrete computation model of hydrogen storage material sucking/placing hydrogen amount of wherein setting up by the requirement of Origin software syntax format is (V _r* (dens (col (A), col (D))-dens (col (C), col (D)))+V _l* (dens (col (B), col (D))-dens (col (C), col (D)))+(V _s-V _sp) * (dens (col (B), col (E))-dens (col (C), col (E)))) * 2/1000, wherein V _rthe volume that means air storage chamber, V _lthe volume that means connecting tube between sample chamber and air storage chamber, V _sthe volume that means sample chamber, V _spthe volume that means sample, col (A) means the air storage chamber pressure data obtained by sensor test of inserting in tables of data, col (B) means the sample chamber pressure data obtained by sensor test of inserting in tables of data, col (C) means the equalized pressure data that obtain by sensor test of inserting in tables of data, col (D) means the room temperature data obtained by sensor test of inserting in tables of data, col (E) means the sample chamber temperature data obtained by sensor test of inserting in tables of data, dens (p, t) mean the density of hydrogen at different pressures and temperature, calculate and obtain by described hydrogen real density calculation procedure, the concrete computation model of hydrogen concentration of the material internal of setting up by Origin software syntax format is sum (col (F))/n _sp, wherein col (F) calculates through aforementioned sucking/placing hydrogen amount computation model the hydrogen atom molar weight data that obtain.

Beneficial effect:

(1) whole data handling procedure is simple and convenient, not high to user's competency profiling;

(2) data handling procedure and the curve process seamless link of publishing picture, efficiency is high;

(3) adopt international Origin software realize the data processing and publish picture, degree of recognition is high, can be directly used in delivering of research report and paper;

(4) test the hydrogen storage material PCT curve accuracy obtained high.

The accompanying drawing explanation

Fig. 1. hydrogen storage material is inhaled the schematic diagram of putting the test of hydrogen PCT curve,

Fig. 2. inhale valve state and system pressure temporal evolution situation in hydrogen PCT curve test process,

Fig. 3. calculate the Origin c program of hydrogen real density,

Fig. 4. hydrogen storage material PCT curve test data processing list,

Fig. 5 .LaNi ₅the alloy hydrogen absorption and desorption test data,

Fig. 6 .LaNi ₅hydrogen PCT curve is put in the suction of alloy under 40 ℃.

Embodiment

The objective of the invention is to be achieved through the following technical solutions:

Utilize before Origin software carries out the data processing, at first hydrogen storage material being inhaled to the flow process of putting the test of hydrogen PCT curve is analyzed, and obtain on this basis the correlation computations model, wherein the calculating of related hydrogen real density adopts the MBWR hydrogen state equation of 32 parameters, the numerical computation method adopted is Secant Method, and its initial value is respectively 0 ~ 0.002 and ideal gas density.Test data and the model that then will directly obtain by sensor are filled in the Origin tables of data, obtain hydrogen concentration data in material after calculating, the hydrogen concentration data in material of finally take are horizontal ordinate, it is that ordinate is mapped in Origin software that hydrogen balance pressure data are put in suction, with regard to the suction that obtains hydrogen storage material, puts hydrogen PCT curve.

The data processing method of hydrogen storage material pressure of the present invention-concentration isotherm test is: at first hydrogen storage material is inhaled to the flow process of putting hydrogen pressure-concentration isotherm PCT curve test and analyzed, obtain sequence switch state and the temperature and pressure data time sequence gatherer process of valve, and obtain on this basis the hydrogen concentration mathematics computing model of hydrogen storage material sucking/placing hydrogen amount mathematics computing model and material internal, wherein the calculating of related hydrogen real density adopts the MBWR hydrogen state equation of 32 parameters; MBWR hydrogen state equation is to take pressure as explicit, take temperature and density as independent variable, and its form is $p={\mathrm{\ρR}}_{g}T+\underset{j=1}{\overset{19}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}+\underset{j=20}{\overset{32}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}{e}^{{\mathrm{\γ\ρ}}^2},$ The calculating of real density can be summed up as and asks nonlinear equation so $f\left(\mathrm{\ρ}\right)={\mathrm{\ρR}}_{g}T+\underset{j=1}{\overset{19}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}+\underset{j=20}{\overset{32}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}{e}^{{\mathrm{\γ\ρ}}^2}-p$ Root, the rooting numerical computation method adopted is Secant Method, its initial value is respectively 0～0.002 and ideal gas density, stopping criterion for iteration is | f (ρ) |≤10 ^-7, wherein p means the pressure of hydrogen, R _gmean ideal gas constant, ρ means the real density of hydrogen, and T means the temperature of hydrogen, G (j), k _j, m _j, γ means the coefficient of MBWR hydrogen state equation; The test data that then will directly obtain by sensor and the model of setting up by the requirement of Origin software syntax format are filled into respectively in Origin tables of data and Set column values dialog box, after calculating, Origin software obtains hydrogen concentration data in material, the hydrogen concentration data in material of finally take are horizontal ordinate, it is that ordinate is clicked the output that the Plot order realizes hydrogen storage material PCT curve in Origin software that hydrogen balance pressure data are put in suction, with regard to the suction that obtains hydrogen storage material, puts hydrogen PCT curve.

It is the C programmed environment Code builder realization by Origin software that described hydrogen real density calculates, at first according to the computing method of above-mentioned MBWR hydrogen state equation, write out corresponding Origin c program code, then it is copied to the Multiple Document Interface zone into Code builder programmed environment, then click the Build button code is compiled, show compiling...densfororigin.c Linking...Done! in the Output in lower left corner Window frame Printed words, mean this program compilation success, and can be by the Origin software transfer, and the function of hydrogen real density calculation procedure when calling is called dens (p, t).

Described hydrogen storage material sucking/placing hydrogen amount mathematics computing model is Δ n _{h, Sp, 2}=n _{r, 1}+ n _{s, 1}-n _{r, 2}-n _{s, 2}, n wherein _{r, 1}, n _{s, 1}mean respectively when the valve closing between air storage chamber and sample chamber the hydrogen atom molar weight in gaseous state in air storage chamber and sample chamber, n _{r, 2}, n _{s, 2}mean respectively when the valve open between air storage chamber and sample chamber the hydrogen atom molar weight in gaseous state in air storage chamber and sample chamber; The hydrogen concentration mathematics computing model of material internal is

∑ Δ n wherein _{h, Sp, 2, i}mean to accumulate the atomic mol that hydrogen is put in suction, n _spmean the molar weight of specimen, Sp means sample, and 2 mean that valve is in closed condition, and i means to charge and discharge hydrogen to sample the i time.

The described model of setting up by the requirement of Origin software syntax format comprises the hydrogen concentration computation model of hydrogen storage material sucking/placing hydrogen amount computation model and material internal, and the concrete computation model of hydrogen storage material sucking/placing hydrogen amount of wherein setting up by the requirement of Origin software syntax format is (V _r* (dens (col (A), col (D))-dens (col (C), col (D)))+V _l* (dens (col (B), col (D))-dens (col (C), col (D)))+(V _s-V _sp) * (dens (col (B), col (E))-dens (col (C), col (E)))) * 2/1000, wherein V _rthe volume that means air storage chamber, V _lthe volume that means connecting tube between sample chamber and air storage chamber, V _sthe volume that means sample chamber, V _spthe volume that means sample, col (A) means the air storage chamber pressure data obtained by sensor test of inserting in tables of data, col (B) means the sample chamber pressure data obtained by sensor test of inserting in tables of data, col (C) means the equalized pressure data that obtain by sensor test of inserting in tables of data, col (D) means the room temperature data obtained by sensor test of inserting in tables of data, col (E) means the sample chamber temperature data obtained by sensor test of inserting in tables of data, dens (p, t) mean the density of hydrogen at different pressures and temperature, calculate and obtain by described hydrogen real density calculation procedure.The concrete computation model of hydrogen concentration of the material internal of setting up by Origin software syntax format is sum (col (F))/n _sp, wherein col (F) calculates through aforementioned sucking/placing hydrogen amount computation model the hydrogen atom molar weight data that obtain.

Described Origin c program code comprises subfunction and a principal function of carrying out the real density iterative computation of describing the convergence equation, and its particular content is as follows:

Below in conjunction with accompanying drawing, the invention will be further described:

At first obtain schematic diagram shown in Fig. 1 according to volumetric method test system structure and hydrogen storage material PCT curve test process, wherein, V ₁and V ₂the gas admittance valve that means respectively air storage chamber and sample chamber; V _rand V _sthe volume that means respectively air storage chamber and sample chamber; V _spthe volume that means sample self; T _rand T _sthe temperature that means respectively air storage chamber and sample chamber; p _rand p _smean respectively valve V ₂open the Hydrogen Vapor Pressure of front air storage chamber and sample chamber; p _emean valve V ₂after opening, the pressure of system after sample suction hydrogen balance; ρ (p, T) means the real density of hydrogen under corresponding different temperatures and pressure state, and it is to calculate acquisition according to the MBWR hydrogen state equation of extensively approval; n _{r, 1}, n _{r, 2}, n _{s, 1}, n _{s, 2}mean respectively air storage chamber and the sample chamber hydrogen atom molar weight in gaseous state under different conditions.

Each data point of testing process being analyzed to rear discovery hydrogen storage material suction hydrogen PCT curve includes two operation stepss: (1) shut-off valve V ₂, open valve V ₁, by source of the gas, to air storage chamber, inflated, inflated the rear pressure and temperature that records respectively air storage chamber and sample chamber; (2) open valve V ₁, shut-off valve V ₂, by air storage chamber, to sample chamber, inflated, after sample suction hydrogen is saturated, record the pressure and temperature of air storage chamber and sample chamber.Figure 2 shows that and inhale in hydrogen PCT curve test process, system pressure and valve state be situation over time.The temperature and pressure value of utilizing above-mentioned two steps to record, can obtain sample hydrogen－sucking amount computation model is Δ n _{h, Sp, 2}=n _{r, 1}+ n _{s, 1}-n _{r, 2}-n _{s, 2}, after i time is inhaled hydrogen, the hydrogen concentration computation model of material internal is so

finally, with hydrogen concentration r _ifor horizontal ordinate, equilibrium pressure p _e,ifor just having obtained material, the ordinate mapping inhales hydrogen PCT curve map.Although above-mentioned model draws according to inhaling the hydrogen process, is the inverse process of inhaling hydrogen owing to putting hydrogen, therefore applicable too.

MBWR hydrogen state equation is to take pressure as explicit, take temperature and density as independent variable, and its form is $p={\mathrm{\ρR}}_{g}T+\underset{j=1}{\overset{19}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}+\underset{j=20}{\overset{32}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}{e}^{{\mathrm{\γ\ρ}}^2},$ The calculating of real density can be summed up as and asks nonlinear equation so $f\left(\mathrm{\ρ}\right)={\mathrm{\ρR}}_{g}T+\underset{j=1}{\overset{19}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}+\underset{j=20}{\overset{32}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}{e}^{{\mathrm{\γ\ρ}}^2}-p$ Root.Here the numerical computation method adopted is Secant Method, and two initial value is made as respectively 0 ~ 0.002 and ideal gas density p/ (RgT), and stopping criterion for iteration is | f (ρ) | and≤10 ^-7.In Origin software, utilize Origin C to realize above-mentioned numerical evaluation.Its development environment is called Code Builder, can be by clicking button open.The code in the Document Interface of Multiple shown in Fig. 3 zone is for calculating the Origin c program of hydrogen real density, and this program comprises subfunction and a principal function of carrying out the real density iterative computation of describing the convergence equation.Click the Build button

printed words, mean this program compilation success, and can be by the Origin software transfer.

Then set up the data processing work table in Origin software, as shown in Figure 4, and the data of sensor directly being tested to acquisition are filled into respectively in A, B, C, D row, the sucking/placing hydrogen amount computation model of front and material internal hydrogen concentration computation model are filled in the set column values command boxe of F row and G row simultaneously.The data of the G of take like this row are horizontal ordinate, and the data of C row are that the ordinate mapping has just obtained material and inhales and put hydrogen PCT curve.

Embodiment 1

Prepared representative hydrogen storage material LaNi ₅alloy, its feed metal is La99wt%, Ni99.9wt% adopts the vacuum induction melting under argon shield, in the quartz ampoule that the vacuum tightness of after melting, alloy being packed into is 1Pa, annealed, and in the water of quenching rapidly after insulation 6h under 1000 ℃.Annealing specimen is through chemical analysis, with the accuracy of checking composition.Finally, take the LaNi of about 1g ₅sample is put into the volumetric method test macro, carries out under 40 ℃ inhaling the test of putting hydrogen PCT curve.

The data of front 5 column datas shown in Fig. 5 for directly obtaining by the proving installation sensor, then 2 column datas are the results that model calculates, and mean respectively the every step suction of sample or the microcrith of emitting and the accumulation hydrogen concentration of sample interior.The concrete computation model of F column data is (27.5* (dens (col (A), col (D))-dens (col (C), col (D)))+11.3* (dens (col (B), col (D))-dens (col (C), col (D))) * (dens (col (B)+(7.2-0.1242), col (E))-dens (col (C), col (E)))) the concrete computation model of * 2/1000, the G column data is sum (col (F))/0.00231259.These models are all by the right click data rows, click Set Column Values menu, then pour into Origin software.Finally click the Plot order of Origin software, select Line+Symbol, then equalized pressure col (C) is made as to ordinate, accumulation hydrogen concentration col (G) is made as the horizontal ordinate mapping, just obtains LaNi ₅hydrogen PCT curve (Fig. 6) is put in the suction of alloy.Documents can be found out measured LaNi ₅the PCT curve result of alloy is correct, shows that this data processing method by Origin software is correct reliable, simple and easy to do.

Claims (4)

1. the data processing method of a hydrogen storage material pressure-concentration isotherm test, it is characterized in that: at first hydrogen storage material is inhaled to the flow process of putting hydrogen pressure-concentration isotherm (PCT curve) test and analyzed, obtain sequence switch state and the temperature and pressure data time sequence gatherer process of valve, and obtain on this basis the hydrogen concentration mathematics computing model of hydrogen storage material sucking/placing hydrogen amount mathematics computing model and material internal, wherein the calculating of related hydrogen real density adopts the MBWR hydrogen state equation of 32 parameters; MBWR hydrogen state equation is to take pressure as explicit, take temperature and density as independent variable, and its form is $p={\mathrm{\ρR}}_{g}T+\underset{j=1}{\overset{19}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}+\underset{j=20}{\overset{32}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}{e}^{{\mathrm{\γ\ρ}}^2},$ The calculating of real density can be summed up as and asks nonlinear equation so $f\left(\mathrm{\ρ}\right)={\mathrm{\ρR}}_{g}T+\underset{j=1}{\overset{19}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}+\underset{j=20}{\overset{32}{\mathrm{\Σ}}}G\left(j\right){\mathrm{\ρ}}^{k_j}{T}^{m_j}{e}^{{\mathrm{\γ\ρ}}^2}-p$ Root, the rooting numerical computation method adopted is Secant Method, its initial value is respectively 0～0.002 and ideal gas density, stopping criterion for iteration is f (ρ) |≤10 ^-7, wherein p means the pressure of hydrogen, and Rg means ideal gas constant, and ρ means the real density of hydrogen, and T means the temperature of hydrogen, G (j), k _j, m _j, γ means the coefficient of MBWR hydrogen state equation; The test data that then will directly obtain by sensor and the model of setting up by the requirement of Origin software syntax format are filled into respectively in Origin tables of data and Set column values dialog box, after calculating, Origin software obtains hydrogen concentration data in material, the hydrogen concentration data in material of finally take are horizontal ordinate, it is that ordinate is clicked the output that the Plot order realizes hydrogen storage material PCT curve in Origin software that hydrogen balance pressure data are put in suction, with regard to the suction that obtains hydrogen storage material, puts hydrogen PCT curve.

2. the data processing method of testing according to hydrogen storage material pressure claimed in claim 1-concentration isotherm, it is characterized in that: it is the C programmed environment Code builder realization by Origin software that described hydrogen real density calculates, at first according to the computing method of above-mentioned MBWR hydrogen state equation, write out corresponding Origin c program code, then it is copied to the Multiple Document Interface zone into Code builder programmed environment, then clicking the Build button is compiled code, printed words, mean this program compilation success, and can be by the Origin software transfer, and the function of hydrogen real density calculation procedure when calling is called dens (p, t).

3. according to the data processing method of hydrogen storage material pressure claimed in claim 1-concentration isotherm test, it is characterized in that: described hydrogen storage material sucking/placing hydrogen amount mathematics computing model is Δ n _{h, Sp, 2}=n _r1+ n _{s, 1}-n _{r, 2}-n _{s, 2}, n wherein _{r, 1}, n _{s, 1}mean respectively when the valve closing between air storage chamber and sample chamber the hydrogen atom molar weight in gaseous state in air storage chamber and sample chamber, n _{r, 2}, n _{s, 2}mean respectively when the valve open between air storage chamber and sample chamber the hydrogen atom molar weight in gaseous state in air storage chamber and sample chamber; The hydrogen concentration mathematics computing model of material internal is

∑ Δ n wherein _{h, Sp, 2, i}mean to accumulate the atomic mol that hydrogen is put in suction, n _spmean the molar weight of specimen, Sp means sample, and 2 mean that valve is in closed condition, and i means to charge and discharge hydrogen to sample the i time.

4. the data processing method of testing according to hydrogen storage material pressure claimed in claim 1-concentration isotherm, it is characterized in that: the described model of setting up by the requirement of Origin software syntax format comprises the hydrogen concentration computation model of hydrogen storage material sucking/placing hydrogen amount computation model and material internal, and the concrete computation model of hydrogen storage material sucking/placing hydrogen amount of wherein setting up by the requirement of Origin software syntax format is (V _r* (dens (col (A), col (D))-dens (col (C), col (D)))+V _l* (dens (col (B), col (D))-dens (col (C), col (D)))+(V _s-V _sp) * (dens (col (B), col (E))-dens (col (C), col (E)))) * 2/1000, wherein V _rthe volume that means air storage chamber, V _lthe volume that means connecting tube between sample chamber and air storage chamber, V _sthe volume that means sample chamber, V _spthe volume that means sample, col (A) means the air storage chamber pressure data obtained by sensor test of inserting in tables of data, col (B) means the sample chamber pressure data obtained by sensor test of inserting in tables of data, col (C) means the equalized pressure data that obtain by sensor test of inserting in tables of data, col (D) means the room temperature data obtained by sensor test of inserting in tables of data, col (E) means the sample chamber temperature data obtained by sensor test of inserting in tables of data, dens (p, t) mean the density of hydrogen at different pressures and temperature, calculate and obtain by described hydrogen real density calculation procedure, the concrete computation model of hydrogen concentration of the material internal of setting up by Origin software syntax format be sum (col (F))/ ^nSp, wherein col (F) calculates through aforementioned sucking/placing hydrogen amount computation model the hydrogen atom molar weight data that obtain.

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