CN203858222U - Device for measuring seebeck coefficients of metals - Google Patents
Device for measuring seebeck coefficients of metals Download PDFInfo
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- CN203858222U CN203858222U CN201420197240.0U CN201420197240U CN203858222U CN 203858222 U CN203858222 U CN 203858222U CN 201420197240 U CN201420197240 U CN 201420197240U CN 203858222 U CN203858222 U CN 203858222U
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Abstract
The utility model discloses a device for measuring seebeck coefficients of metals. The device is composed of heating devices, a cooling device, a heat preservation device and a measuring system, wherein an alundum tube is used as a sample bracket of a metal test sample to be detected and is put into the heating devices; the cooling device is used for keeping temperatures of the two ends of the metal test sample to be detected consistent; the heating devices comprise a fixed heating device and a movable heating device which are used for heating different sections of the metal test sample to be detected; after the middle part of the metal test sample to be detected is completely fused, two liquid-solid interfaces are formed; one liquid-solid interface is fixed while the other liquid-solid interface can move in the fixed direction, so that a liquid-phase section of the metal test sample to be detected is solidified directionally. According to the device, a temperature difference is set for a solidification super-cooling degree, a directional solidification process is combined to rapidly, effectively and accurately measure the seebeck coefficients of metal materials, and the seebeck coefficients of a solid phase and a liquid phase of the materials do not need to be respectively measured, so that a system structure is simplified, the operation is simple and the device can be used for repeatedly verifying for many times.
Description
Technical field
The utility model relates to a kind of Physical Properties of Metallicmateriais measurement mechanism, particularly relate to a kind of metal material thermoelectricity capability measurement mechanism, for the Seebeck coefficient of accurate measuring metallic materials provides reliable method, be applied to Physical Properties of Metallicmateriais surveying instrument technical field.
Background technology
From last century end, increasingly serious along with the energy and environmental problem, develops the research of new material rapidly.Thermoelectric material based on thermoelectric effect is pollution-free with it, the life-span long, capacity usage ratio advantages of higher is widely used in all trades and professions.The problem that thermoelectric material faces is at present that thermoelectricity conversion ratio is lower.
Within 1821, roentgen Thomas John Sai Beike finds, two kinds of different metals, two ends are separately connected respectively, and be placed at different temperature, will produce a potential difference (PD), in circuit, just have electric current and produce, this phenomenon is referred to as Seebeck effect by he.And think the Seebeck coefficient that responds different metal implements Seebeck effect varies in size, and for two kinds of different metals, once the temperature of tie point differs larger, the Sai Beike potential difference (PD) producing is so also larger.Seebeck coefficient is the important parameter of characterizing metal material thermoelectric effect, and the thermoelectricity capability of the larger material of Seebeck coefficient is better.
The Seebeck coefficient of thermoelectric material can be expressed as:
Wherein, S is the Seebeck coefficient of thermoelectric material,
for the Seebeck electromotive force of thermoelectric material,
for the temperature difference at thermoelectric material two ends.
The solid phase of same metal material has different Seebeck coefficients from liquid phase, is respectively
with
, the absolute Seebeck coefficient that difference is between the two this material
.In addition, from classical solidification theory, in the real process of metal freezing, the actual temperature of metal freezing
lower than the equilibrium freezing temperature of metal
, the degree of supercooling that difference is between the two metal freezing
, when metal solidifies with friction speed, its degree of supercooling is also different, and in the time of directional solidification, the degree of supercooling under different setting rates can be by calculating.
The accurately absolute Seebeck coefficient of measuring metallic materials
preparation for material is significant, but the common every Kelvin's temperature difference of the voltage being produced by thermoelectric effect only has several microvolts, and the Seebeck coefficient of independent measurement material solid phase and liquid phase calculates its difference and possesses larger error under different condition, in addition, the problems such as traditional measurement mechanism exists complex structure, and difficulty is installed, and measuring accuracy is lower.
Utility model content
The purpose of this utility model is to have overcome the deficiencies in the prior art, a kind of device of measuring metal closures seebeck coefficient is provided, the accurately seebeck coefficient of measuring metallic materials, the utility model is crossed cold principle according to directional solidification process median surface, propose in fixing a heating furnace, the process that makes mobile stove carry out displacement by certain speed is carried out continuous heating to sample, by measuring the variation of sample two ends thermoelectrical potential, in conjunction with solidifying degree of supercooling, can calculate the seebeck coefficient of thermoelectric material, possesses precision high, simple to operate, the repeatedly advantage of repeated authentication.
Create object for reaching foregoing invention, the technical solution adopted in the utility model is as follows:
A kind of device of measuring metal closures seebeck coefficient, formed by Temperature Field Control system and measuring system, measuring system is made up of data acquisition unit and computer terminal, two connection terminals of data acquisition unit are electrically connected respectively with the two ends of test button to be measured by corresponding signal transmssion line respectively, data acquisition unit is also connected with computer terminal signal, the temperature field of the inside of Temperature Field Control system to test button to be measured is controlled, test button to be measured is formed in the alundum tube of both ends open elongated bar-shaped, and make close contact between test button side surface to be measured and the inside surface of alundum tube, remove the space between test button to be measured and alundum tube, the i.e. sample holder using alundum tube as test button to be measured, test button to be measured and alundum tube are combined closely and be integrally formed the target system of measuring, and alundum tube position is fixed, Temperature Field Control system is at least by heating arrangement, cooling device and attemperator composition, heating arrangement is by temperature control system control, measurement target system level is put into heating arrangement, alundum tube is passed from the through hole of heating arrangement, and make the two ends of test button to be measured all be positioned at heating arrangement outside, cooling device is consistent the two ends temperature of test button to be measured, heating arrangement is by fixing heating arrangement and portable heating arrangement forms, respectively the different sections of test button to be measured are heated, fixing heating arrangement is arranged on a fixed platform by the one group of fixed support being fixedly connected with it, portable heating arrangement is arranged on movably on another platform by another group fixed support being fixedly connected with it, between fixing heating arrangement and portable heating arrangement, the alundum tube of measuring target system respective segments is arranged in the inner heated constant temperature area of space forming of attemperator, fixing heating arrangement and portable heating arrangement heat measuring target system simultaneously, make the test button to be measured middle part melting formation liquid phase section completely in alundum tube, liquid-solid boundary of each formation is distinguished at the liquid phase section two ends of test button to be measured, outside two liquid-solid boundaries of the liquid phase section of test button to be measured, be respectively two sections of solid phase sections of test button to be measured, wherein fixing heating arrangement heats test button to be measured right side section, the test button to be measured right side section that fixing heating arrangement is heated forms right side solid phase section, solid phase area, the right side segment length of test button to be measured remains unchanged, thereby make the right side liquid-solid boundary of the liquid phase section of test button to be measured keep equilibrium freezing state, and wherein portable heating arrangement heats test button to be measured left side section, make the test button to be measured left side section that fixing heating arrangement heats form left side solid phase section, also control portable heating arrangement moving axially along test button to be measured by adjusting simultaneously, solid phase area, the left side segment length of test button to be measured is changed, thereby the position of the left side liquid-solid boundary of the liquid phase section of test button to be measured is changed, thereby make the liquid phase section of test button to be measured carry out directional solidification.
As the preferred technical scheme of the utility model, heating arrangement is placed in together with cooling device to attemperator.
As the improvement of technique scheme, between fixing heating arrangement and portable heating arrangement, the alundum tube outer setting of measuring target system respective segments is installed to muff, between muff and alundum tube, be plugged with high temperature cotton.
As the optimal technical scheme of such scheme, by the displacement movement of the portable heating arrangement of pull-in control system control, pull-in control system is become by leading screw, threephase asynchronous machine and programmed control group, programmed control cabinet control threephase asynchronous machine, drive leading screw by threephase asynchronous machine again, and then draw movably platform, make portable heating arrangement moving axially along test button to be measured.
As the optimal technical scheme of such scheme, cooling device comprises a set of fixing refrigeratory and a set of removable refrigeratory, fixing refrigeratory is arranged on position between fixing heating arrangement and test button right-hand member to be measured, the test button to be measured right side section that fixing heating arrangement is heated carries out cooling, make the right side section of test button to be measured form right side solid phase section, removable refrigeratory and portable heating arrangement synchronizing moving, removable refrigeratory is arranged on position between portable heating arrangement and test button left end to be measured, the test button to be measured left side section that portable heating arrangement is heated carries out cooling, make the left side section of test button to be measured form left side solid phase section.
As the improvement of technique scheme, cooling device adopts the work of the fluid type of cooling, cooling device forms two by heat eliminating medium inner chamber and heat eliminating medium exocoel and overlaps independently fluid passage, wherein in heat eliminating medium inner chamber, inject the high thermal conductivity liquid circulating, heat eliminating medium exocoel passes into recirculated water.
As the improvement of technique scheme, signal transmssion line is the wire with shielding construction, and shielding construction is at wire outer wrap layer of metal net.
The utility model compared with prior art, has following substantive distinguishing features and advantage:
1. the device utilization of the utility model measurement metal closures seebeck coefficient provides the setting of the temperature difference to solidifying degree of supercooling, in conjunction with directional solidification process, measure the absolute Seebeck coefficient of material, adopt transversal orientation to solidify measuring method has been set, do not need to measure respectively the Seebeck coefficient of material solid phase and liquid phase, measure fast and effectively the absolute Seebeck coefficient of material, simplified system architecture, realize material thermoelectrical potential is carried out fast, accurately measured and the object of research, and repeated authentication repeatedly;
2. the utility model has adopted transversal orientation coagulation system, has simplified system architecture, is easy to manufacture and assembling;
3. the device of the utility model measurement metal closures seebeck coefficient can directly be measured the thermoelectrical potential relevant to the absolute Seebeck coefficient of material, adopt formula E=S Δ T just can one-time calculation to go out the absolute Seebeck coefficient of material, can realize the disposable measurement to absolute Seebeck coefficient;
4. the carrying out that the device that uses the utility model to measure metal closures seebeck coefficient can not destroy metal solidification process in whole measuring process, ensures that the growth conditions of crystal is stable, measures thereby realize accurately;
5. the measurement data degree of accuracy of the device of the utility model measurement metal closures seebeck coefficient is high, and test environment is safe and reliable, possesses good repeated authentication, has realized the object that the thermoelectrical potential fast accurate of thermoelectric material is measured;
6. the copper cash with shield effectiveness that the connecting line that the device of the utility model measurement metal closures seebeck coefficient adopts all uses, meanwhile, connecting line outside parcel one deck copper mesh, has shielded electromagnetic interference (EMI) preferably;
The utility model measure in the device of metal closures seebeck coefficient, connect motor and rotating shaft transaxle employing be blossom type transaxle, device materials all adopts the materials such as 304 stainless steels to make simultaneously, avoid using ferromagnetic assembling parts equipment as far as possible, effectively reduced the unfavorable external influence factors to measurement data accuracy.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model embodiment mono-measures the device of metal closures seebeck coefficient.
Fig. 2 is the thermoelectricity loop diagram structural representation of the utility model embodiment mono-device of measuring metal closures seebeck coefficient.
Fig. 3 adopts the utility model embodiment mono-to measure the device of metal closures seebeck coefficient, under the different setting rates of surveyed alloy sample, measure the experimental measurements comparison diagram of the Seebeck coefficient of Pb-Sn alloy, wherein, Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) and Fig. 3 (d) are respectively the measurement result figure that portable heating arrangement is obtained while moving with the speed of 5 μ m/s, 10 μ m/s, 15 μ m/s and 20 μ m/s.
Embodiment
Preferred embodiment accompanying drawings of the present utility model is as follows:
embodiment mono-:
In the present embodiment, choose the high pure metal Pb of purity 99.99% and the metal Sn that purity is 99.99%, in the induction melting furnace with pure argon protective atmosphere, melt out the Pb-Sn alloy of massfraction 5wt%Sn, be cast into and make long 120cm, the sample of diameter 10mm, as test button 4 to be measured, by clean test button 4 surface finish to be measured, rinse and dry up with alcohol, pack in the alundum tube of same size, for remove between sample and sample and alundum tube between space, said sample is put into the directional solidification furnace with argon shield atmosphere and carry out directional solidification, the test button to be measured 4 and the alundum tube that obtain Pb-Sn alloy are combined closely and are integrally formed measurement target system reserve.
In the present embodiment, referring to Fig. 1 and Fig. 2, a kind of device of measuring metal closures seebeck coefficient, formed by Temperature Field Control system and measuring system, measuring system is made up of data acquisition unit 11 and computer terminal 12, two connection terminals of data acquisition unit 11 are electrically connected respectively with the two ends of test button 4 to be measured by corresponding signal transmssion line 10 respectively, data acquisition unit 11 is also connected with computer terminal 12 signals, data acquisition unit 11 is 2640A data acquisition unit, it comprises 20 passages, can be connected with computer terminal, form together a complete data acquisition system (DAS), data acquisition unit 11 is used for measuring DC voltage, alternating voltage, resistance, temperature, frequency and DC current, temperature survey with thermoelectricity occasionally thermal resistance carry out, for other measurement parameters, as long as use suitable transmitter or sensor to be converted into power on signal, can measure, the temperature field of the inside of Temperature Field Control system to test button 4 to be measured is controlled, test button 4 to be measured is formed in the alundum tube of both ends open elongated bar-shaped, and make close contact between test button 4 side surfaces to be measured and the inside surface of alundum tube, remove the space between test button 4 to be measured and alundum tube, the i.e. sample holder using alundum tube as test button 4 to be measured, test button 4 to be measured and alundum tube are combined closely and be integrally formed the target system of measuring, and alundum tube position is fixed, Temperature Field Control system is at least by heating arrangement, cooling device 2 and attemperator 3 form, heating arrangement is by temperature control system control, temperature control system is by PID type temperature controller, rectification circuit and divider resistance three part compositions, wherein PID type temperature controller adopts Based Intelligent Control, for single-phase 3KW, and adopt K type nickel chromium-nickel silicon thermocouple to measure the temperature of heating arrangement inner chamber, temperature-controlled precision reaches ± and 1 DEG C, measurement target system level is put into heating arrangement, alundum tube is passed from the through hole of heating arrangement, and make the two ends of test button 4 to be measured all be positioned at heating arrangement outside, cooling device 2 is consistent the two ends temperature of test button 4 to be measured, heating arrangement is by fixing heating arrangement 1 and portable heating arrangement 13 forms, respectively the different sections of test button 4 to be measured are heated, two cover heating arrangements are all welded, by-level through hole, insert alundum tube and the temperature thermocouple of test button to be measured 4 outsides, the heating zone of heating arrangement is carborunbum tube heating rod, heating-up temperature can reach 1200 DEG C, the design size of heating arrangement is diameter 110*114mm, length 175mm, thereby ensureing has enough space plugs to put insulation material and ensure enough heating intervals between heating arrangement and heating jacket inwall, regulate heating-up temperature for Pb-Sn alloy material, guarantee that two heating arrangement zone line samples can evenly melt, fixing heating arrangement 1 is arranged on a fixed platform 9 by the one group of fixed support 8 being fixedly connected with it, portable heating arrangement 13 is arranged on movably on another platform 9 by another group fixed support 8 being fixedly connected with it, between fixing heating arrangement 1 and portable heating arrangement 13, heating arrangement is placed in together with cooling device 2 to attemperator 3, the alundum tube of measuring target system respective segments is arranged in the inner heated constant temperature area of space forming of attemperator 3, fixing heating arrangement 1 and portable heating arrangement 13 heat measuring target system simultaneously, make the test button to be measured 4 complete meltings in middle part in alundum tube form liquid phase section B, liquid-solid boundary of each formation is distinguished at the liquid phase section B two ends of test button 4 to be measured, outside two liquid-solid boundaries of the liquid phase section B of test button 4 to be measured, be respectively 4 two sections of solid phase sections of test button to be measured, wherein fix heating arrangement 1 to test button 4 right side section heating to be measured, make the test button to be measured 4 right side sections that fixing heating arrangement 1 heats form right side solid phase section C, the right side solid phase section C length of test button 4 to be measured remains unchanged, thereby make the right side liquid-solid boundary of the liquid phase section B of test button 4 to be measured keep equilibrium freezing state, and wherein portable heating arrangement 13 heats test button 4 left side sections to be measured, make the test button to be measured 4 left side sections that fixing heating arrangement 1 heats form left side solid phase section A, also control portable heating arrangement 13 moving axially along test button 4 to be measured by adjusting simultaneously, the left side solid phase section A length of test button 4 to be measured is changed, thereby the position of the left side liquid-solid boundary of the liquid phase section B of test button 4 to be measured is changed, thereby make the liquid phase section B of test button 4 to be measured carry out directional solidification.
In the present embodiment, referring to Fig. 1, by the displacement movement of the portable heating arrangement 13 of pull-in control system control, pull-in control system is made up of leading screw 5, threephase asynchronous machine 6 and programmed control cabinet 7, programmed control cabinet 7 is controlled threephase asynchronous machine 6, drive leading screw 5 by threephase asynchronous machine 6 again, and then draw movably platform 9, make portable heating arrangement 13 moving axially along test button 4 to be measured.What adopt that the pull-in control system of the present embodiment has been easy to regulation draws-stops action, effectively controls setting rate and solidifies direction.Pull-in control system provides power by threephase asynchronous 6, and controls alternating current motor driver by high function vector, direction and the size of setup control threephase asynchronous 6 rotational speeies of the program by programmed control cabinet 7.The transmission shaft of threephase asynchronous 6 is by turn-screw 5 and then drive movably platform 9 to move, platform 9 drives portable heating arrangement 13 according to designated program displacement by one group of fixed support 8 again, reaches the object of the setting rate of accurate Control Assay.Threephase asynchronous that the present embodiment adopts 6 models are YS520 type motor, and rated power is 160W, rated current 0.72A, rated speed 1500r/min; What screw mandrel 5 used is stainless steel tapping pull bar, has tensile strength very much not yielding, and degree of accuracy advantages of higher ensures the accuracy that portable heating arrangement 13 displacement speed are carried out.
In the present embodiment, referring to Fig. 1 and Fig. 2, cooling device 2 comprises a set of fixing refrigeratory and a set of removable refrigeratory, fixing refrigeratory is arranged on position between fixing heating arrangement 1 and test button to be measured 4 right-hand members, the test button to be measured 4 right side sections that fixing heating arrangement 1 is heated carry out cooling, make the right side section of test button 4 to be measured form right side solid phase section C, removable refrigeratory and portable heating arrangement 13 synchronizing movings, removable refrigeratory is arranged on position between portable heating arrangement 13 and test button to be measured 4 left ends, the test button to be measured 4 left side sections that portable heating arrangement 13 is heated carry out cooling, make the left side section of test button 4 to be measured form left side solid phase section A.
In the present embodiment, referring to Fig. 1～Fig. 3, heating arrangement is placed in to the heat-insulation system with water circulation protection, alloy sample 4 levels to be measured are put into fixing heating arrangement 1 and portable heating arrangement 13 centers, by temperature control system, heating arrangement is warmed up to predetermined temperature according to setting program, make the middle part melting of the test button to be measured 4 of b-Sn alloy, insulation certain hour is after the test button to be measured 4 of Pb-Sn alloy forms two stable molten metal liquid/solid interfaces, according to the speed of setting, removable refrigeratory and portable heating arrangement 13 level of synchronization are moved right, until stable the stopping of the electromotive force recording moved later, now the electromotive force at test button to be measured 4 two ends tends towards stability after reducing certain value, this electromotive force drop is exactly the absolute thermoelectrical potential of alloy.
In the present embodiment, referring to Fig. 1 and Fig. 2, obtained test button to be measured 4 is horizontally fixed on to fixing heating arrangement 1 and portable heating arrangement 13 inside, 4 liang of end surfaces of test button to be measured are connected with data acquisition unit 11 respectively.Heating system unit temp is warmed up to design temperature by setup program, after insulation 30min, makes portable heating arrangement 13 horizontal motion with the speed of setting, in this process Usage data collection device 11 record moving process in the variation of electromotive force.After migration potential tends towards stability, stop moving, now the electromotive force at test button to be measured 4 two ends tends towards stability after reducing certain value, the solid-liquid interface thermoelectrical potential that this electromotive force drop is exactly alloy.
In the present embodiment, referring to Fig. 2, in the time that the fixing heating arrangement 1 in left side moves right to set speed level, be a directed process of setting, test button 4 left side solid-liquid interfaces to be measured are passed to the right, and the temperature of this solid-liquid interface is
, test button 4 right side solid-liquid interface invariant positions to be measured, this solid-liquid interface position is
, the degree of supercooling when difference of two solid-liquid interface temperature is with this speed directional solidification
.Due to the effect of the circulating cooling system of cooling device 2, the temperature at test button to be measured 4 two ends is all room temperature
, now measure the thermoelectrical potential of the thermoelectricity loop of the device of metal closures seebeck coefficient surveying and be
, and have:
.
Adopt the present embodiment to measure the device of metal closures seebeck coefficient, under the different setting rates of surveyed alloy sample, measure the experimental measurements contrast of the Seebeck coefficient of Pb-Sn alloy, referring to Fig. 3, wherein, Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) and Fig. 3 (d) are respectively the measurement results that portable heating arrangement is obtained while moving with the speed of 5 μ m/s, 10 μ m/s, 15 μ m/s and 20 μ m/s.As can be seen from Figure 3 measured electromotive force has a difference, and this difference is exactly the absolute thermoelectrical potential under the different setting rates of surveyed alloy sample, by calculating under different casting
, in conjunction with the thermoelectrical potential recording
, can draw the absolute Seebeck coefficient of material
.
embodiment bis-:
The present embodiment and embodiment mono-are basic identical, and special feature is:
In the present embodiment, between fixing heating arrangement 1 and portable heating arrangement 13, the alundum tube outer setting of measuring target system respective segments is installed to muff, between muff and alundum tube, be plugged with high temperature cotton.The present embodiment, being positioned at the middle position of two feeder apparatus, is provided with muff, and object is: during due to system works, heating zone is in higher temperature, in order to keep the state of temperature of heating interval and the consideration for security protection aspect.It is more safe and reliable in use that the present embodiment is measured the device of metal closures seebeck coefficient.In the two bottom sides of muff, have the short groove of the about 20mm of width, to make portable heating arrangement 13 displacements.
embodiment tri-:
The present embodiment and previous embodiment are basic identical, and special feature is:
In the present embodiment, cooling device 2 adopts the work of the fluid type of cooling, cooling device 2 forms two by heat eliminating medium inner chamber and heat eliminating medium exocoel and overlaps independently fluid passage, wherein in heat eliminating medium inner chamber, injects the high thermal conductivity liquid circulating, and heat eliminating medium exocoel passes into recirculated water.In the present embodiment, every suit heating arrangement outside is all welded with a cooling device 2 that is divided into inside and outside two chambeies, central through hole, and the diameter of cooling device 2 is that 72*76mm, length are 100mm; The Ga-In-Sn liquid that fills high thermal conductivity in the inner chamber of cooling device 2, exocoel passes into recirculated water, to guarantee quick cooling sample, sample two ends temperature is consistent.
embodiment tetra-:
The present embodiment and previous embodiment are basic identical, and special feature is:
In the present embodiment, signal transmssion line 10 is for having the copper cash of shielding construction, and shielding construction is at wire outer wrap one deck copper mesh, can shield preferably electromagnetic interference (EMI), ensures that measurement data is more accurate.
By reference to the accompanying drawings the utility model embodiment is illustrated above; but the utility model is not limited to above-described embodiment; the object that can also create according to utility model of the present utility model is made multiple variation; the change made under all Spirit Essences according to technical solutions of the utility model and principle, modification, substitute, combination, simplify; all should be equivalent substitute mode; as long as meet structure and the aufbauprinciple of measuring the device of metal closures seebeck coefficient for the utility model, all belong to protection domain of the present utility model.
Claims (7)
1. measure the device of metal closures seebeck coefficient for one kind, formed by Temperature Field Control system and measuring system, described measuring system is made up of data acquisition unit (11) and computer terminal (12), two connection terminals of described data acquisition unit (11) are electrically connected respectively with the two ends of test button to be measured (4) by corresponding signal transmssion line (10) respectively, described data acquisition unit (11) is also connected with described computer terminal (12) signal, the temperature field of the inside of described Temperature Field Control system to described test button to be measured (4) is controlled, it is characterized in that: described test button to be measured (4) is formed in the alundum tube of both ends open elongated bar-shaped, and make close contact between described test button to be measured (4) side surface and the inside surface of described alundum tube, remove the space between described test button to be measured (4) and described alundum tube, the i.e. sample holder using alundum tube as described test button to be measured (4), described test button to be measured (4) and described alundum tube are combined closely and be integrally formed the target system of measuring, and described alundum tube position is fixed, described Temperature Field Control system is at least by heating arrangement, cooling device (2) and attemperator (3) composition, described heating arrangement is by temperature control system control, measurement target system level is put into described heating arrangement, alundum tube is passed from the through hole of described heating arrangement, and the two ends that make described test button to be measured (4) are all positioned at described heating arrangement outside, described cooling device (2) is consistent the two ends temperature of described test button to be measured (4), described heating arrangement is by fixing heating arrangement (1) and portable heating arrangement (13) forms, respectively the different sections of described test button to be measured (4) are heated, described fixing heating arrangement (1) is arranged on a fixed platform (9) by the one group of fixed support (8) being fixedly connected with it, described portable heating arrangement (13) is arranged on movably on another platform (9) by another group fixed support (8) being fixedly connected with it, between described fixing heating arrangement (1) and described portable heating arrangement (13), the alundum tube of described measurement target system respective segments is arranged in the inner heated constant temperature area of space forming of described attemperator (3), described fixing heating arrangement (1) and described portable heating arrangement (13) heat described measurement target system simultaneously, make test button described to be measured (4) the middle part melting formation liquid phase section (B) completely in alundum tube, liquid-solid boundary of each formation is distinguished at liquid phase section (B) two ends of described test button to be measured (4), outside two liquid-solid boundaries of the liquid phase section (B) of described test button to be measured (4), be respectively (4) two sections of solid phase sections of described test button to be measured, wherein said fixing heating arrangement (1) heats described test button to be measured (4) right side section, make test button described to be measured (4) the right side section that described fixing heating arrangement (1) heats form right side solid phase section (C), right side solid phase section (C) length of described test button to be measured (4) remains unchanged, thereby make the right side liquid-solid boundary of the liquid phase section (B) of described test button to be measured (4) keep equilibrium freezing state, and wherein said portable heating arrangement (13) is to the section heating of described test button to be measured (4) left side, make test button described to be measured (4) the left side section that described fixing heating arrangement (1) heats form left side solid phase section (A), also control described portable heating arrangement (13) moving axially along described test button to be measured (4) by adjusting simultaneously, left side solid phase section (A) length of described test button to be measured (4) is changed, thereby the position of the left side liquid-solid boundary of the liquid phase section (B) of described test button to be measured (4) is changed, thereby make the liquid phase section (B) of described test button to be measured (4) carry out directional solidification.
2. the device of measuring according to claim 1 metal closures seebeck coefficient, is characterized in that: described heating arrangement is placed in together with described cooling device (2) to described attemperator (3).
3. measure according to claim 2 the device of metal closures seebeck coefficient, it is characterized in that: between described fixing heating arrangement (1) and described portable heating arrangement (13), the alundum tube outer setting of described measurement target system respective segments is installed to muff, between muff and alundum tube, be plugged with high temperature cotton.
4. according to the device of measuring metal closures seebeck coefficient described in any one in claim 1～3, it is characterized in that: by the displacement movement of portable heating arrangement (13) described in pull-in control system control, described pull-in control system is by leading screw (5), threephase asynchronous machine (6) and programmed control cabinet (7) composition, described programmed control cabinet (7) is controlled described threephase asynchronous machine (6), drive described leading screw (5) by described threephase asynchronous machine (6) again, and then movably described platform (9) of traction, make described portable heating arrangement (13) moving axially along described test button to be measured (4).
5. according to the device of measuring metal closures seebeck coefficient described in any one in claim 1～3, it is characterized in that: described cooling device (2) comprises a set of fixing refrigeratory and a set of removable refrigeratory, described fixing refrigeratory is arranged on position between described fixing heating arrangement (1) and described test button to be measured (4) right-hand member, test button described to be measured (4) the right side section that described fixing heating arrangement (1) is heated carries out cooling, make the right side section of described test button to be measured (4) form right side solid phase section (C), described removable refrigeratory and described portable heating arrangement (13) synchronizing moving, described removable refrigeratory is arranged on position between described portable heating arrangement (13) and described test button to be measured (4) left end, test button described to be measured (4) the left side section that described portable heating arrangement (13) is heated carries out cooling, make the left side section of described test button to be measured (4) form left side solid phase section (A).
6. measure according to claim 5 the device of metal closures seebeck coefficient, it is characterized in that: described cooling device (2) adopts the work of the fluid type of cooling, described cooling device (2) forms two by heat eliminating medium inner chamber and heat eliminating medium exocoel and overlaps independently fluid passage, wherein in heat eliminating medium inner chamber, inject the high thermal conductivity liquid circulating, heat eliminating medium exocoel passes into recirculated water.
7. according to the device of measuring metal closures seebeck coefficient described in any one in claim 1～3, it is characterized in that: described signal transmssion line (10) is for having the wire of shielding construction, and described shielding construction is at wire outer wrap layer of metal net.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197240.0U CN203858222U (en) | 2014-04-22 | 2014-04-22 | Device for measuring seebeck coefficients of metals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197240.0U CN203858222U (en) | 2014-04-22 | 2014-04-22 | Device for measuring seebeck coefficients of metals |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158542A (en) * | 2015-08-31 | 2015-12-16 | 苏州热工研究院有限公司 | Metal thermoelectric potential detection instrument |
| CN104569031B (en) * | 2014-12-26 | 2017-06-13 | 广东工业大学 | For the experimental provision and method of nano-fluid directional solidification |
| CN108802034A (en) * | 2016-08-10 | 2018-11-13 | 李忠 | The working method of micro-fluid experiment device based on remote data acquisition |
| WO2019184177A1 (en) * | 2018-03-26 | 2019-10-03 | 苏州热工研究院有限公司 | Portable thermoelectric potential detector |
| CN110530927A (en) * | 2019-10-10 | 2019-12-03 | 王雪强 | A kind of thermoelectric material Seebeck coefficient test device and method |
-
2014
- 2014-04-22 CN CN201420197240.0U patent/CN203858222U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569031B (en) * | 2014-12-26 | 2017-06-13 | 广东工业大学 | For the experimental provision and method of nano-fluid directional solidification |
| CN105158542A (en) * | 2015-08-31 | 2015-12-16 | 苏州热工研究院有限公司 | Metal thermoelectric potential detection instrument |
| CN105158542B (en) * | 2015-08-31 | 2018-09-07 | 苏州热工研究院有限公司 | Metal fever potential detecting instrument |
| CN108802034A (en) * | 2016-08-10 | 2018-11-13 | 李忠 | The working method of micro-fluid experiment device based on remote data acquisition |
| CN108802034B (en) * | 2016-08-10 | 2021-08-10 | 李忠 | Working method of micro-fluid experimental device based on remote data acquisition |
| WO2019184177A1 (en) * | 2018-03-26 | 2019-10-03 | 苏州热工研究院有限公司 | Portable thermoelectric potential detector |
| CN110530927A (en) * | 2019-10-10 | 2019-12-03 | 王雪强 | A kind of thermoelectric material Seebeck coefficient test device and method |
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