CN211148956U - Sonde temperature measurement system based on black ball compensation - Google Patents
Sonde temperature measurement system based on black ball compensation Download PDFInfo
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- CN211148956U CN211148956U CN201921851898.8U CN201921851898U CN211148956U CN 211148956 U CN211148956 U CN 211148956U CN 201921851898 U CN201921851898 U CN 201921851898U CN 211148956 U CN211148956 U CN 211148956U
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
A sonde temperature measurement system based on black ball compensation belongs to the technical field of high-altitude temperature detection and aims to solve the problem that high-altitude temperature measurement in the prior art is affected by radiation to cause inaccurate measurement results. The utility model discloses a: a black ball temperature probe; a white ball temperature probe; a resistance measurement module; and the data processing fitting module is connected with the resistance measuring module, the data processing fitting module obtains temperature measuring values of the black ball temperature probe and the white ball temperature probe according to resistance values of the black ball temperature probe and the white ball temperature probe obtained by the resistance measuring module, obtains real-time radiation intensity according to the radiation intensity and a temperature fitting relation of the black ball temperature probe and the white ball temperature probe, obtains a black ball thermodynamic temperature value according to a black body thermodynamic law, and obtains an actual air temperature value according to the temperature measuring value of the black ball temperature probe and the black ball thermodynamic temperature value.
Description
Technical Field
The utility model belongs to the technical field of high altitude temperature detection, concretely relates to sonde temperature measurement system based on black ball compensation.
Background
At present, the high altitude temperature is generally measured by adopting a sonde mode, and the sonde measures the air temperature by adopting a small thermistor mode. Although the thermistor is small, it is still affected by radiation, which makes the temperature measured by the thermistor higher. The temperature measured at high altitude is the temperature of air, the air is less affected by radiation, the temperature measured by the thermistor not only has the temperature of air, but also has temperature rise caused by radiation, the temperature error can reach more than 10 ℃, and the measurement result is inaccurate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sonde temperature measurement system based on black ball compensation, the high altitude temperature measurement of solving the prior art existence leads to the unsafe problem of measuring result by radiation influence.
In order to achieve the above object, the utility model discloses a sonde temperature measurement system based on black ball compensation includes:
the black ball temperature probe is a temperature probe with strong electromagnetic wave absorption effect;
the white ball temperature probe is a temperature probe with weak electromagnetic wave absorption effect;
the resistance measuring module is respectively connected with the black ball temperature probe and the white ball temperature probe and is used for respectively measuring the resistance of the black ball temperature probe and the resistance of the white ball temperature probe;
and the data processing fitting module is connected with the resistance measuring module, obtains temperature measuring values of the black ball temperature probe and the white ball temperature probe according to the resistance values of the black ball temperature probe and the white ball temperature probe obtained by the resistance measuring module, obtains real-time radiation intensity according to the radiation intensity and a temperature fitting relation of the black ball temperature probe and the white ball temperature probe, obtains a black ball thermodynamic temperature value according to a black body thermodynamic law, and obtains an actual air temperature value according to the temperature measuring value of the black ball temperature probe and the black ball thermodynamic temperature value.
The black ball temperature probe comprises a PT100 platinum resistor and a carbon nanotube black body material coated outside the PT100 platinum resistor.
The white ball temperature probe comprises a PT100 platinum resistor and a barium carbonate material coated on the outer part of the PT100 platinum resistor.
The radiation intensity and temperature fitting relation of the black ball temperature probe and the white ball temperature probe is as follows:
E＝K1×(T2-T1)×(T2-T1)+K2×(T2-T1)+K3
wherein: e is the radiation intensity output by the radiation source;
t2 is black sphere temperature;
t1 is the white sphere temperature;
k1, K2 and K3 are fitting coefficients obtained by the experiment.
The utility model has the advantages that: the utility model discloses a sonde temperature measurement system based on black ball compensation carries out data processing according to the corresponding temperature measurement value that black ball temperature probe and white ball temperature probe measured, obtains real-time radiant intensity according to radiant intensity and black ball temperature probe and white ball temperature probe's temperature fitting relational expression, obtains black ball thermodynamic temperature value according to black body thermodynamic law, obtains actual air temperature value according to black ball temperature probe's temperature measurement value and black ball thermodynamic temperature value. The difference value of the temperature measurement values of the black ball temperature probe and the white ball temperature probe is introduced in the high-altitude measurement process to correct the temperature value, so that the measurement result is more accurate.
Drawings
Fig. 1 is a block diagram of a sonde temperature measurement system based on black ball compensation according to the present invention;
fig. 2 is the utility model discloses a sonde temperature measurement system's based on black ball compensation schematic diagram.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a black ball temperature probe and white ball temperature probe carry out the air compensation measurement in the form of using simultaneously, black ball temperature probe, its "black" is not black in the colour, and its material is the material (the use at present stage is carbon nanometer black body material) that all has very strong absorption for the electromagnetic wave to most wavelength (300nm ~ 3000nm), and its absorption surrounding environment's electromagnetic wave leads to the rising of its self temperature, and the temperature that rises is relevant with the intensity of radiation.
The white ball temperature probe, which is not white in color, is made of a material that is not absorbent to most wavelengths of electromagnetic waves (barium carbonate is a main component), reflects the electromagnetic waves in the surrounding environment, so that the influence of radiation on the temperature of the white ball temperature probe is small, but the influence of radiation on the white ball temperature probe cannot be completely shielded, and the rising temperature of the white ball temperature probe is also related to the intensity of the radiation.
Referring to fig. 1 and fig. 2, the utility model discloses a sonde temperature measurement system based on black ball compensation includes:
the black ball temperature probe is a temperature probe with strong electromagnetic wave absorption effect;
the white ball temperature probe is a temperature probe with weak electromagnetic wave absorption effect;
the resistance measuring module is respectively connected with the black ball temperature probe and the white ball temperature probe and is used for respectively measuring the resistance of the black ball temperature probe and the resistance of the white ball temperature probe;
and the data processing fitting module is connected with the resistance measuring module, obtains temperature measurement values of the black ball temperature probe and the white ball temperature probe according to resistance values of the black ball temperature probe and the white ball temperature probe obtained by the resistance measuring module, obtains real-time radiation intensity according to the radiation intensity and a temperature fitting relation of the black ball temperature probe and the white ball temperature probe, obtains a black ball thermodynamic temperature value according to a black body thermodynamic law, and obtains an actual air temperature value according to the temperature measurement value of the black ball temperature probe and the black ball thermodynamic temperature value.
The utility model discloses a resistance measurement module includes AD chip AD7793, instrumentation amplifier AD623, constant current source chip L M134D, constitute such as standard resistance 100R and analog switch CD4051, resistance measurement module measures the resistance value of the PT100 platinum resistance of black ball temperature probe and the resistance value of the PT100 platinum resistance of white ball temperature probe respectively.
The utility model discloses a data fitting module comprises STM32F413, FM24V10, MAX485, L M1117 etc. STM32F413 takes a floating point arithmetic unit, can improve the speed of operation FM24V10 is the FRAM memory, the coefficient of storage equation and the coefficient of conversion table MAX485 is the RS485 chip, is responsible for and communicates with resistance measurement module L M1117 is the steady voltage chip, exports the required voltage of chip work.
The black ball temperature probe comprises a PT100 platinum resistor and a carbon nanotube black body material coated outside the PT100 platinum resistor.
The white ball temperature probe comprises a PT100 platinum resistor and a barium carbonate material coated on the outer part of the PT100 platinum resistor.
The utility model discloses at the measurement initial stage, through adjusting the radiation field of the different radiation intensity of artificial radiation source output, the environment of simulation sonde in the high altitude, a fixed value is adjusted to the radiation intensity of artificial radiation source, the radiation source shines black ball temperature probe, because the reason of radiation, black ball temperature probe's actual temperature value is T2 for receiving radiation rising back temperature value, the radiation source shines white ball temperature probe, because the reason of radiation, white ball temperature probe's actual temperature value is T1 for receiving radiation rising back temperature value, according to the different radiation intensity in the high altitude, adjust corresponding radiation intensity with the radiation intensity of artificial radiation source, under different radiation intensity, T2 value and T1 value are different, many times test and measurement, obtain multiunit T2 value and T1 value and radiation intensity's corresponding relation, obtain the fitting relational expression according to the corresponding relation.
The radiation intensity and temperature fitting relation of the black ball temperature probe and the white ball temperature probe is as follows:
E＝K1×(T2-T1)×(T2-T1)+K2×(T2-T1)+K3
wherein: e is the radiation intensity output by the radiation source;
t2 is black sphere temperature;
t1 is the white sphere temperature;
k1, K2 and K3 are fitting coefficients obtained by the experiment.
The blackbody radiation law specifically refers to:
wherein: ebλFor real-time radiation intensity, W/m3；
λ is the wavelength, m;
t is a black sphere thermodynamic temperature value, K;
e is the base of the natural logarithm;
c13.742 × 10 is a first radiation constant-16W·m2；
c2Is the second radiation constant, 1.438 × 10-2m·K；
According to the blackbody radiation law, a black sphere thermodynamic temperature value T can be reversely deduced through a formula, then the radiation temperature is corrected according to the measured T2 value, and finally the actual temperature of the air is obtained.
Claims (4)
1. Sonde temperature measurement system based on black ball compensation, its characterized in that includes:
the black ball temperature probe is a temperature probe with strong electromagnetic wave absorption effect;
the white ball temperature probe is a temperature probe with weak electromagnetic wave absorption effect;
the resistance measuring module is respectively connected with the black ball temperature probe and the white ball temperature probe and is used for respectively measuring the resistance of the black ball temperature probe and the resistance of the white ball temperature probe;
and the data processing fitting module is connected with the resistance measuring module, obtains temperature measuring values of the black ball temperature probe and the white ball temperature probe according to the resistance values of the black ball temperature probe and the white ball temperature probe obtained by the resistance measuring module, obtains real-time radiation intensity according to the radiation intensity and a temperature fitting relation of the black ball temperature probe and the white ball temperature probe, obtains a black ball thermodynamic temperature value according to a black body thermodynamic law, and obtains an actual air temperature value according to the temperature measuring value of the black ball temperature probe and the black ball thermodynamic temperature value.
2. The sonde temperature-measurement system based on black-sphere compensation of claim 1, wherein the black-sphere temperature probe comprises a PT100 platinum resistor and a carbon nanotube black body material coated on the outside of the PT100 platinum resistor.
3. The black sphere compensation-based sonde temperature measurement system of claim 1, wherein the white sphere temperature probe comprises a PT100 platinum resistor and a barium carbonate material coated on the outside of the PT100 platinum resistor.
4. The system for measuring the temperature of the sonde based on black-sphere compensation according to any one of claims 1 to 3, wherein the fitting relation between the radiation intensity and the temperature of the black-sphere temperature probe and the temperature of the white-sphere temperature probe is as follows:
E＝K1×(T2-T1)×(T2-T1)+K2×(T2-T1)+K3
wherein: e is the radiation intensity output by the radiation source;
t2 is black sphere temperature;
t1 is the white sphere temperature;
k1, K2 and K3 are fitting coefficients obtained by the experiment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921851898.8U CN211148956U (en) | 2019-10-30 | 2019-10-30 | Sonde temperature measurement system based on black ball compensation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116298379A (en) * | 2023-05-23 | 2023-06-23 | 烟台大学 | Method, device, equipment and storage medium for measuring outdoor wind speed and radiation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116298379A (en) * | 2023-05-23 | 2023-06-23 | 烟台大学 | Method, device, equipment and storage medium for measuring outdoor wind speed and radiation |
| CN116298379B (en) * | 2023-05-23 | 2023-08-04 | 烟台大学 | Method, device, equipment and storage medium for measuring outdoor wind speed and radiation |
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