CN2037477U - Portable thermoelectric measurement apparatus - Google Patents
Portable thermoelectric measurement apparatus Download PDFInfo
- Publication number
- CN2037477U CN2037477U CN 88215680 CN88215680U CN2037477U CN 2037477 U CN2037477 U CN 2037477U CN 88215680 CN88215680 CN 88215680 CN 88215680 U CN88215680 U CN 88215680U CN 2037477 U CN2037477 U CN 2037477U
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- China
- Prior art keywords
- probe head
- measuring
- minerals
- thermoelectric
- millimeters
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Abstract
The utility model discloses an apparatus for measuring the thermoelectricity of the semi-conductor minerals. The thermoelectric coefficient and the conductivity type of the minerals propose indicator for deposit to gold, silver, platinum and other precious metal deposit and complex metal deposit, and the indicator is used as the basis of the geological evaluation. The portable thermoelectric measurement apparatus is composed of a probe head and a host machine, and the measuring end of the probe head is reducing shaped; the distance between the pointed end of the probe head and a temperature measure and control element in the probe head is not greater than 1.5 Millimeters, and the probe head and the measured minerals are point-contact; the measurement in the micro zone can be carried out, and the measuring accuracy and precision are high. The apparatus panel can directly display the thermoelectric coefficient and the guide type of the sample; the portable thermoelectric measurement apparatus can realize the field operation.
Description
The utility model is a kind of instrument that is used to measure the semiconductor mineral pyroelectricity.
The utility model is used to measure semiconductor mineral Seebeck coefficient (thermoelectrical potential rate) and conduction type (electron type is that N type, cavity type are the P type), according to the data of measuring to precious metal deposit and polymetallic deposits such as gold, silver, platinum, propose indicator for deposit, make geologic assessment.
Before the eighties, part geology department has developed the mineral thermoelectric measuring instrument of using in the laboratory both at home and abroad.The representative article that relates to apparatus has: Γ. Α. and dagger-axe Bhujerba holder husband, 1957, the thermoelectric property of pyrite and galenite and get in touch with the possibility of mineral formation temperature, Wang Guian, Tan Rongsen translates, and 1964, " raw mineral materials research ", Chinese industrial publishing house.Li Jiaju, the test of mineral thermoelectric effect, " geological sciences " 1973, the 4 phases, 316～317 pages.The inventor had developed the mineral thermoelectric measuring instrument with the thermoelectrical potential curve method in 1980, and can carry out microcell and measure.In July, 1986, China Liaoning Geology Mineral Products Office laboratory (Shenyang) has developed the thermoelectrometry apparatus of the same curve method, measures but this instrument can not carry out microcell.Above-mentioned instrument can not directly obtain Seebeck coefficient, and can only use in the laboratory.
The purpose of this utility model is: the power consumption of lowering apparatus circuit, reduction printer device volume and weight is realized field operation, improves measuring accuracy and efficient, shortens and looks for the miner to do cycle with geological research work.
The utility model is made up of probe and main frame.It is characterized in that: the test lead of probe is a convergent shape, and its most advanced and sophisticated distance with the interior measuring and controlling temp device of probe is not more than 1.5 millimeters, and the probe body diameter is not more than 5 millimeters, and length is not more than 15 millimeters.Probe is that point contacts with tested mineral, can carry out microcell and measure, and has improved measuring accuracy and accuracy.
The measuring and controlling temp device that main frame is little by volume, thermal capacity is little, thermal inertia is little (3,4), voltage amplifier (5), signal controller (6) and display (7) are formed, and circuit structure is simple, and good stability is low in energy consumption, and volume is little, has realized field operation.
Circuit of the present utility model have by Seebeck coefficient ± α=± Us/(t
H-t
C) calculation function.On instrument panel, can directly demonstrate operation result and be the Seebeck coefficient of sample and lead type (± α, μ v/ ℃).Test speed is fast, has improved work efficiency.
The utility model compared with prior art has the following advantages:
1) instrument is the miniaturization portable type.Realized the field condition test, shortened greatly and looked for the miner to do cycle with geological research work.
2) owing to adopted advanced KDX measuring and controlling temp device, novel hot junction and cold end structure, improved the measurement temperature difference (t
H-t
C) the authenticity degree, thereby the precision and the accuracy of institute's calorimetric electrostrictive coefficient are guaranteed.
3) because the probe test lead is designed to convergent shape, it is most advanced and sophisticated to be that point contacts with sample, can make microcell to sample and measure.
4) since in the instrument circuit established by α=± U/(t
H-t
C) finish computing and demonstration to α.The sample rate of the display of Seebeck coefficient is 3 times/second.Therefore, test job is quick, is suitable for many samples are obtained fast the mass data of the Journal of Sex Research that takes statistics.
5) consumed power is little, and machine volume and weight are little, are suitable for field work
Accompanying drawing 1 is a sonde configuration synoptic diagram of the present utility model
1, gradual shrinkage hot junction;
2, measuring and controlling temp device;
3, heating wire.
Accompanying drawing 2 is a circuit diagram of the present utility model
1, cold junction assembly;
2, hot junction assembly;
3, hot junction measuring and controlling temp device KDX;
4, signal control circuit;
5,6, relay;
7, Seebeck coefficient and lead type (± μ v/ ℃) display;
8, voltage amplifier;
9, cold junction measuring and controlling temp device KDX;
A, b, c, be five cutter operating switches.
The outside drawing that accompanying drawing 3 has been implemented for the utility model.Its technical parameter is:
1, Seebeck coefficient measurement range 0～± 1999 μ v/ ℃, resolution 1 μ v/ ℃.
2, the sample minimum grain size is 0.1 millimeter.
3, microcell metering contact area＜0.1 square millimeter.
4,3 1/2 bit digital displays show Seebeck coefficient and lead type.
5, power is 0.65 watt.
6, voltage: powered battery (6V * 4+1.5V * 2) or power by rectifier transformer.
7, physical dimension: length * wide * height=250 * 108 * 145mm.
8, weight＜1.2 kilogram (not comprising battery).
Claims (2)
1, a kind of portable type thermoelectric measurement instrument, be made up of hot junction probe and main frame, it is characterized in that the test lead of popping one's head in is a convergent shape, its most advanced and sophisticated distance with the inner measuring and controlling temp device of popping one's head in is not more than 1.5 millimeters, the diameter of probe body is not more than 5 millimeters, and length is not more than 15 millimeters.
2, the portable type thermoelectric measurement instrument of asking according to claim 1 is characterized in that, can directly read Seebeck coefficient and conduction type from the operation display panel of instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88215680 CN2037477U (en) | 1988-11-01 | 1988-11-01 | Portable thermoelectric measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88215680 CN2037477U (en) | 1988-11-01 | 1988-11-01 | Portable thermoelectric measurement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2037477U true CN2037477U (en) | 1989-05-10 |
Family
ID=4848436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88215680 Withdrawn CN2037477U (en) | 1988-11-01 | 1988-11-01 | Portable thermoelectric measurement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2037477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459191A (en) * | 2018-03-26 | 2018-08-28 | 苏州热工研究院有限公司 | A kind of Portable thermal potential detector |
-
1988
- 1988-11-01 CN CN 88215680 patent/CN2037477U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459191A (en) * | 2018-03-26 | 2018-08-28 | 苏州热工研究院有限公司 | A kind of Portable thermal potential detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |