Multifunctional mineral thermoelectric instrument

Abstract

The invention provides a multi-function mineral electrothermal device that includes thermal pole, cold pole, electric heater and temperature sensor of thermal pole which are mounted in the thermal pole, temperature sensor of cold pole which is mounted in the cold pole, signal processing circuit, temperature controlled switch circuit and display. The inputs of signal processing circuit are separately connected with the thermal pole, cold pole, and the temperature sensor of thermal pole and cold pole, the outputs are connected separately with the temperature controlled switch circuit and display. The characteristics are those: the signal processing circuit includes SCM and front end circuit of temperature signal connected with the SCM, the front end circuit of electrothermal signal, the front end circuit of temperature signal, additional general digital AVO meter module and the front end circuit of active temperature, electrical storage device, detecting temperature probe, humidity sensor, and the output of the SCM is connected with the temperature controlled switch circuit. The invention can detect synchronously the parameters of the thermo emf, electrothermal curve, electrothermal factor, conductive shape, temperature, humidity and resistance which are related in the pyroelectricity research of mental and semiconductor mineral, and it can be used in the research of mineral typonym.

Description

Technical field [0001] The invention relates to an instrument for measuring the thermoelectric effect of metals and semiconductor minerals, belonging to the technical field of mineral property testing. Background technique [0002] Metal or semiconductor minerals can generate thermoelectric potential under the condition of temperature difference. Mineral thermoelectricity has a special typotype significance. It is an important parameter to characterize the relationship between mineral structure, composition and formation conditions (such as temperature, pressure, medium composition change, etc.), and can indicate the environment and physical and chemical conditions of mineral formation. It can judge paleogeothermal temperature and ore-forming temperature, predict concealed ore bodies, study ore-forming zoning, and evaluate the denudation level of ore deposits, etc. How to quickly and accurately measure the temperature, thermoelectric potential or thermoelectric curve, and t...

AI Technical Summary

Problems solved by technology

In general, the cooling poles of (1) to (3) are constant temperature through water flow, and the structure is complex and difficult to control, which affects the accuracy of the activation temperature; while (4) digitally displays the thermoelectric coefficient when the fixed temperature difference is 10°C , but because the set activation temperature is small, the test results are difficult to truly reflect the thermoelectricity of the sample (there is no linear relationship between the thermoelectromotive force E of the mineral and the activation temperature Δt); the thermal electrodes of the above test devices have not adopted special Thermal insulation measures, too fast heat dissipation reduces the constant temperature stability; their temperature control uses traditional circuits, the temperature control accuracy is low, and only a single activation temperature can be taken, and different activation temperatures cannot be set according to the actual needs of the measurement; In particular, these test devices have a single function and can only test a certain parameter related to the thermoelectric effect, which cannot fully reflect the thermoelectric characteristics of the sample.

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