CN201828536U - Thermoelectric material electric conductivity measuring instrument - Google Patents
Thermoelectric material electric conductivity measuring instrument Download PDFInfo
- Publication number
- CN201828536U CN201828536U CN201020574561XU CN201020574561U CN201828536U CN 201828536 U CN201828536 U CN 201828536U CN 201020574561X U CN201020574561X U CN 201020574561XU CN 201020574561 U CN201020574561 U CN 201020574561U CN 201828536 U CN201828536 U CN 201828536U
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- China
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- bearing seat
- chute
- sliding bearing
- thermoelectric material
- fixed mounting
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Abstract
The utility model relates to a thermoelectric material electric conductivity measuring instrument comprising a low resistance meter, a chute, a left electrode, a right electrode and a voltage measuring plate, wherein one end of the chute is provided with a fixed bearing seat, and a sliding bearing seat is arranged on the chute; the sliding bearing seat and the fixed bearing seat are symmetrically arranged, the left electrode and the right electrode are respectively fixed on the fixed bearing seat and the sliding bearing seat and respectively connected with two current output ends of the low resistance meter through conductors; the voltage measuring plate is an insulation plate, and is provided with two voltage measuring probes which are arranged at intervals; and both voltage measuring probes are respectively connected with two voltage input ends of the low resistance meter through leads. The thermoelectric material electric conductivity measuring instrument is simple and skillful in structure, easy to operate, lower in cost, convenient for measurement and accurate in measurement, is applicable to industrial production needing thermoelectric materials, and is beneficial to wide application of thermoelectric materials.
Description
Technical field
The utility model relates to thermoelectric material, relates in particular to a kind of simple in structure, easy to operate, high efficiency, measures thermoelectric material conductance instrument accurately.
Background technology
Thermoelectric material is a kind of specific function material that can realize direct conversion between heat energy and the electric energy, and it has Seebeck effect, peltier effect and Thomson effect.Thomson effect is the phenomenon that the conductor two ends produce electromotive force when the temperature difference is arranged, and peltier effect is the phenomenon that the two ends of energized conductor produce the temperature difference (end wherein produces heat, and the other end absorbs heat), and both combine and have just constituted Seebeck effect.Conductivity is the important thermoelectricity capability index of of thermoelectric material, measure this index and relate to application electric technology and heat power engineering, it is a complex engineering, also do not have at present a kind of simple in structure, easy to operate, measure accurate equipment, this has influenced the widespread use of thermoelectric material to a certain extent.
Summary of the invention
The technical matters that device structure complexity, inconvenient operation, the measuring accuracy that the utility model mainly solves original measurement thermoelectric material conductivity be not high yet, be not suitable for suitability for industrialized production; A kind of simple in structure, easy to operate, thermoelectric material conductance instrument of measuring accurately and being applicable to suitability for industrialized production is provided.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model comprises the low-resistance meter, chute, left side electrode, right electrode and voltage measurement plate, one end of described chute is provided with fixed mounting base, chute is provided with the sliding bearing seat, sliding bearing seat and fixed mounting base are symmetrical arranged, left side electrode, right electrode is located at respectively on fixed mounting base and the sliding bearing seat, left side electrode, right electrode links to each other by two current output terminals of lead and described low-resistance meter respectively, described voltage measurement plate is the piece insulcrete, the voltage measurement plate is provided with the voltage measurement pin that is separated with a segment distance between two, and two voltage measurement pins link to each other by two voltage input ends of lead and described low-resistance meter respectively.Need the thermoelectric material of test generally to be strip, during test, be installed between the left and right electrode.The sliding bearing seat can horizontally slip on chute, to adjust left and right distance between electrodes, can test the thermoelectric material of different length.The low-resistance meter is given the thermoelectric material that is installed between the left and right electrode by two current output terminal output currents.For the ease of calculating, the distance between two voltage measurement pins generally rounds numerical value, as 10cm, 20cm etc.When the thermoelectric material galvanization, the different parts that the voltage measurement pin is touched the thermoelectric material side just can record the magnitude of voltage that different parts produces and flow to the low-resistance meter, directly reads resistance value from the low-resistance meter.Can record the different sections of thermoelectric material, the magnitude of voltage of ipsilateral not easily by the voltage measurement plate, measure not only accurately but also convenient.According to correlation formula, just can calculate the conductivity of thermoelectric material.
As preferably, described chute top is provided with the screw mandrel parallel with chute, and screw mandrel passes described sliding bearing seat, and an end of screw mandrel links to each other with described fixed mounting base, and the other end of screw mandrel passes on this end of the end wall of chute and screw mandrel and is connected with rocking handle.By rotation crank, rotatable screw mandrel, and then make the sliding bearing seat carry out left and right slip, make the position of adjusting the sliding bearing seat become convenient, more laborsaving.
As preferably, be embedded with surface bearing on the opposite flank of described fixed mounting base and sliding bearing seat, be equipped with rubber blanket in fixed mounting base and the sliding bearing seat, the rubber blanket pad is in the back of surface bearing, the opposite face of two surface bearings is provided with spacing collar, and described left electrode, right electrode are located at the bottom of left side spacing collar, right side spacing collar respectively.The termination of thermoelectric material is just in time stretched in the spacing collar, locatees more convenient.By the setting of surface bearing and rubber blanket, make that clamping the position when clamping thermoelectric material has individual dilatability, avoid thermoelectric material is produced wearing and tearing.
As preferably, the bottom surface of described sliding bearing seat is inverted ", and the lower protruding block in the middle of the bottom surface is stuck in the described chute, and the bottom surface of lower protruding block both sides is provided with groove, and described groove is stuck on the sidewall of chute.This structure makes three slipping planes between sliding bearing seat and the chute, it is more smooth to guarantee to slide, and installs more firm.
As preferably, described sliding bearing seat is provided with the bolt vertical with chute, and bolt passes described groove.When the sliding bearing seat move to need clamp the position time, can the tail end of bolt be withstood on the end face of chute wall by tighting a bolt, more help the geometrical clamp holding position, avoid the sliding bearing seat to be moved.
The beneficial effects of the utility model are: simple in structure and ingenious, and easy operating, cost is lower, and it is convenient to measure, and measures accurately, is applicable in the suitability for industrialized production that need use thermoelectric material, and helps the widespread use of thermoelectric material.
Description of drawings
Fig. 1 is a kind of main TV structure synoptic diagram of the present utility model.
Fig. 2 is a kind of syndeton synoptic diagram of sliding bearing seat and chute in the utility model.
1. low-resistance meters among the figure, 2. chute, 3. left electrode, 4. right electrode, 5. fixed mounting base, 6. sliding bearing seat, 7. voltage measurement plate, 8. voltage measurement pin, 9. screw mandrel, 10. rocking handle, 11. surface bearing, 12. rubber blankets, 13. lower protruding blocks, 14. grooves, 15. bolts.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: the thermoelectric material conductance instrument of present embodiment as shown in Figure 1, comprises low-resistance meter 1, chute 2, left electrode 3, right electrode 4 and voltage measurement plate 7.The low-resistance meter is inlaid on the casing that is positioned on the worktable, and chute is positioned on the worktable.One end of chute 2 is equipped with fixed mounting base 5, be slidingly fitted with sliding bearing seat 6 on the chute 2, the bottom surface of sliding bearing seat 6 is inverted ", as shown in Figure 2, lower protruding block 13 in the middle of the bottom surface is stuck in the chute 2, has groove 14 on the bottom surface of lower protruding block 13 both sides, and groove 14 is stuck on the sidewall of chute 2, the bolt 15 vertical with chute 2 is housed on the sliding bearing seat 6, and bolt 15 passes groove 14.There is the screw mandrel 9 parallel with chute 2 chute 2 tops, and screw mandrel 9 passes sliding bearing seat 6, and an end of screw mandrel 9 links to each other with fixed mounting base 5, and the other end of screw mandrel 9 passes on this end of the end wall of chute and screw mandrel and is connected with rocking handle 10.Sliding bearing seat 6 and fixed mounting base 5 are symmetrical arranged, be embedded with surface bearing 11 on the opposite flank of fixed mounting base 5 and sliding bearing seat 6, in fixed mounting base 5 and the sliding bearing seat 6 rubber blanket 12 is arranged all, rubber blanket 12 pads are in the back of surface bearing 11, be connected with spacing collar on the opposite face of two surface bearings 11, the bottom of the spacing collar on spacing collar, the right side in left side is separately installed with left electrode 3 and right electrode 4, and left electrode 3, right electrode 4 link to each other by two current output terminals of the low-resistance meter 1 on lead and the casing respectively.As shown in Figure 1, voltage measurement plate 7 is piece insulcretes, two 8, two voltage measurement pins 8 of voltage measurement pin that are spaced apart 10cm is housed on the voltage measurement plate 7 links to each other by two voltage input ends of lead and low-resistance meter 1 respectively.Need the thermoelectric material of test to be strip, thermoelectric material is a bismuth telluride-base thermoelectric material.
The course of work:
1, uses vernier caliper at cylindrical upper, middle and lower its diameter of position measurement D, average.
2, an end of thermoelectric material is withstood on left electrode on the fixed mounting base, shake rocking handle, the sliding bearing seat is slided left, right electrode on the sliding bearing seat withstands the other end of thermoelectric material, thermoelectric material just is sandwiched between the left and right electrode like this, connect the power supply of low-resistance meter on the casing, give the thermoelectric material galvanization.
3, the voltage measurement plate of taking contacts the voltage measurement pin on it and the survey face of thermoelectric material, and the voltage of the thermoelectric material between two voltage measurement pins flows to the low-resistance meter, shows resistance value on the low-resistance meter.Make three different survey faces positions of two voltage measurement pin contact thermoelectric materials, read three resistance values, average.
4, according to formula
, wherein R is that average electrical resistance, the d that obtains above is the mean diameter value of obtaining above, L is two spacings between the voltage measurement pin, is 10cm, obtains the conductivity of thermoelectric material.
Claims (5)
1. thermoelectric material conductance instrument, it is characterized in that comprising low-resistance meter (1), chute (2), left side electrode (3), right electrode (4) and voltage measurement plate (7), one end of described chute (2) is provided with fixed mounting base (5), chute (2) is provided with sliding bearing seat (6), sliding bearing seat (6) and fixed mounting base (5) are symmetrical arranged, left side electrode (3), right electrode (4) is located at respectively on fixed mounting base (5) and the sliding bearing seat (6), left side electrode (3), right electrode (4) links to each other by two current output terminals of lead and described low-resistance meter (1) respectively, described voltage measurement plate (7) is the piece insulcrete, voltage measurement plate (7) is provided with the voltage measurement pin (8) that is separated with a segment distance between two, and two voltage measurement pins (8) link to each other by two voltage input ends of lead and described low-resistance meter (1) respectively.
2. thermoelectric material conductance instrument according to claim 1, it is characterized in that described chute (2) top is provided with the screw mandrel (9) parallel with chute (2), screw mandrel (9) passes described sliding bearing seat (6), one end of screw mandrel (9) links to each other with described fixed mounting base (5), and the other end of screw mandrel (9) passes on this end of the end wall of chute and screw mandrel and is connected with rocking handle (10).
3. thermoelectric material conductance instrument according to claim 1 and 2, it is characterized in that being embedded with surface bearing (11) on the opposite flank of described fixed mounting base (5) and sliding bearing seat (6), be equipped with rubber blanket (12) in fixed mounting base (5) and the sliding bearing seat (6), rubber blanket (12) pad is in the back of surface bearing (11), the opposite face of two surface bearings (11) is provided with spacing collar, and described left electrode (3), right electrode (4) are located at the bottom of left side spacing collar, right side spacing collar respectively.
4. thermoelectric material conductance instrument according to claim 1 and 2, the bottom surface that it is characterized in that described sliding bearing seat (6) is inverted ", lower protruding block (13) in the middle of the bottom surface is stuck in the described chute (2), the bottom surface of lower protruding block (13) both sides is provided with groove (14), and described groove (14) is stuck on the sidewall of chute (2).
5. thermoelectric material conductance instrument according to claim 4 is characterized in that described sliding bearing seat (6) is provided with the bolt (15) vertical with chute (2), and bolt (15) passes described groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020574561XU CN201828536U (en) | 2010-10-25 | 2010-10-25 | Thermoelectric material electric conductivity measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020574561XU CN201828536U (en) | 2010-10-25 | 2010-10-25 | Thermoelectric material electric conductivity measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201828536U true CN201828536U (en) | 2011-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020574561XU Expired - Fee Related CN201828536U (en) | 2010-10-25 | 2010-10-25 | Thermoelectric material electric conductivity measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201828536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911380A (en) * | 2016-04-15 | 2016-08-31 | 中国科学院上海硅酸盐研究所 | Measurement apparatus and method for representing service stability of thermoelectric material under heavy current effect |
| CN107727894A (en) * | 2017-12-11 | 2018-02-23 | 宿迁学院 | A kind of superconductor resistance measurement servicing unit |
-
2010
- 2010-10-25 CN CN201020574561XU patent/CN201828536U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911380A (en) * | 2016-04-15 | 2016-08-31 | 中国科学院上海硅酸盐研究所 | Measurement apparatus and method for representing service stability of thermoelectric material under heavy current effect |
| CN105911380B (en) * | 2016-04-15 | 2019-09-13 | 中国科学院上海硅酸盐研究所 | Characterize measuring device and method that high current acts on lower thermoelectric material military service stability |
| CN107727894A (en) * | 2017-12-11 | 2018-02-23 | 宿迁学院 | A kind of superconductor resistance measurement servicing unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20161025 |