CN113310588A - Remote temperature detection device based on mercury thermometer - Google Patents
Remote temperature detection device based on mercury thermometer Download PDFInfo
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- CN113310588A CN113310588A CN202110660793.XA CN202110660793A CN113310588A CN 113310588 A CN113310588 A CN 113310588A CN 202110660793 A CN202110660793 A CN 202110660793A CN 113310588 A CN113310588 A CN 113310588A
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- mercury
- resistance
- thermometer
- resistance wire
- mercury thermometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
- G01K5/18—Measuring temperature based on the expansion or contraction of a material the material being a liquid with electric conversion means for final indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
- G01K5/04—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
- G01K5/04—Details
- G01K5/10—Containers for the liquid
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention provides a remote temperature detection device based on a mercury thermometer, which comprises the mercury thermometer and a control circuit, wherein a resistance wire is arranged in the mercury thermometer and is connected with the control circuit, when a mercury column rises or falls along with the temperature change, the resistance of the resistance wire can also change, the control circuit comprises a resistance meter, a control module and a wireless communication module, the height of the mercury column can be determined by measuring the actual resistance of the resistance wire through the resistance meter, the control module is used for converting a resistance signal measured by the resistance meter into a temperature signal, the automatic temperature reading of the mercury thermometer is realized, and the temperature information can be remotely transmitted through the wireless communication module so as to achieve the purpose of remote monitoring. Compared with the mainstream remote temperature detection device, the remote temperature detection device based on the mercury thermometer provided by the invention has the advantages of simple structure, low production and maintenance cost and accurate and reliable measurement result.
Description
Technical Field
The invention relates to the technical field of measuring instruments, in particular to a remote temperature detection device based on a mercury thermometer.
Background
With the popularization and development of the science and technology society, the development of the technology and the industry of the internet of things can cause a new technical revolution and an industrial revolution, and all industries try to grasp opportunities to combine the traditional technology with the information technology, so that the upgrading of the industry is promoted; the temperature is one of the most common physical quantities in our daily life, and the development and change of the temperature measurement technology not only influences our daily work and life, but also is closely related to the work and production of various industries and fields; in specific environments which have high requirements on temperature conditions and are inconvenient for people to frequently come in and go out, such as construction and maintenance environments, unmanned intelligent workshops, vegetable greenhouses and the like, a method capable of effectively measuring the ambient temperature and remotely transmitting the measurement result is needed.
The current mainstream remote temperature measurement technology and method are as follows: the temperature measurement method based on the thermistor sensor, the electronic temperature detector, the remote temperature measurement method based on the optical fiber temperature measurement technology, and the like, but the temperature measurement methods all have some defects. Wherein: in the remote temperature measurement method based on the thermistor sensor, due to the characteristics of the thermistor, the resistance value of the thermistor is rapidly reduced along with the rise of the temperature to present nonlinearity, so that the temperature measurement precision is low and the stability is poor; electronic equipment of the electronic thermometer is easily interfered by humidity and a hostile environment, the degree is time-consuming and unstable, and the price is higher compared with that of a traditional physical thermometer; the remote temperature measuring method based on the optical fiber temperature measuring technology has high measuring precision, but the manufacturing cost is quite expensive, the maintenance cost of the instrument is high, the installation and the wiring and the data conversion are complicated, and the optical fiber sensor is a high-precision instrument and is not suitable for measuring environments with harsh conditions. Therefore, the invention provides a stable and reliable remote temperature measuring method with lower cost, which has significance for the production and the development of related industries.
Disclosure of Invention
The invention mainly aims to provide a remote temperature detection method based on a mercury thermometer aiming at the defects of the existing remote temperature detection method, and hopefully, the traditional physical thermometer is combined with the existing information transmission technology, so that the advantages of simple structure, low production and maintenance cost and accurate and reliable measurement result of the traditional physical thermometer are considered, and the remote monitoring of the measurement result can be realized.
The invention is realized by the following steps:
the invention provides a remote temperature detection device based on a mercury thermometer, which comprises the mercury thermometer and a control circuit, the mercury thermometer comprises a thermometer shell, a liquid storage ball arranged in the thermometer shell and a thin tube arranged above the liquid storage ball, mercury is contained in the liquid storage ball and is communicated with the thin tube above the liquid storage ball, when the mercury tank is heated, the volume of mercury expands and rises along the thin tube to form a mercury column, the height of the mercury column is in direct proportion to the heating degree, a resistance wire along the expansion direction of mercury in the thin tube is arranged in the thin tube, the control circuit comprises a resistance meter for measuring the resistance of the resistance wire above the mercury column, the height of the resistance wire above the mercury column is obtained through conversion of the measured resistance, and then the height of the mercury column is calculated according to the total height of the resistance wire, so that the measured temperature of the mercury thermometer is obtained.
Preferably, two parallel resistance wires are arranged in the thin tube, the tops of the two resistance wires are connected with an ohmmeter through a lead, and the resistance between the top ends of the two resistance wires is measured through the ohmmeter.
Preferably, a resistance wire is arranged in the thin tube, two measuring ends of the resistance meter are respectively connected with the top end of the resistance wire and mercury in the liquid storage ball, the mercury is used as a conductor, and the resistance of the resistance wire on the upper portion of the mercury column is obtained through measurement of the resistance meter.
Preferably, the thermometer shell is a glass shell, and the liquid storage ball and the tubule are manufactured in an integrated mode or in a split mode.
Preferably, the resistance wire penetrates through the length direction of the whole thin tube.
Preferably, the control circuit further comprises a control module for converting the resistance size and the temperature value.
Preferably, the control circuit further comprises a wireless communication module, and the wireless communication module is used for remotely transmitting the temperature value signal calculated by the control module.
The invention has the beneficial effects that: the invention provides a remote temperature detection method and a remote temperature detection device based on a mercury thermometer, and the method and the device have the advantages of simple structure, low production and maintenance cost and accurate and reliable measurement result by combining the traditional physical thermometer with the existing information transmission technology.
Drawings
FIG. 1 is a schematic structural diagram of a remote temperature detection device based on a mercury thermometer according to embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a remote temperature detection device based on a mercury thermometer according to embodiment 2 of the present invention;
FIG. 3 is a block diagram of a mercury thermometer-based remote temperature detection device according to an embodiment of the present invention;
in the figure: 1-thermometer shell, 2-tubule, 3-liquid storage ball, 4-temperature scale, 5-resistance wire, 6-lead, 7-resistance meter, and 8-mercury column.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The invention provides a remote temperature detection device based on a mercury thermometer, which is mainly composed of the mercury thermometer and a control circuit, wherein a resistance wire 5 is arranged in the mercury thermometer along the mercury culture expansion direction, the resistance wire 5 is connected with the control circuit, when a mercury column 8 rises or falls along with the temperature change, the height of the resistance wire 5 above the mercury column 8 can be changed, the height of the mercury column 8 can be determined by measuring the resistance of the resistance wire 5 exposed above the mercury column 8, and the measured temperature is also determined, therefore, the control circuit at least comprises a resistance meter 7, and certainly, the remote temperature detection device also can comprise a control module and a wireless communication module, the control module is used for converting the resistance signal measured by the resistance meter 7 into a temperature signal, the wireless communication module can remotely transmit the temperature information to achieve the purpose of remote monitoring.
Example 1: as shown in figure 1, the remote temperature detection device provided by the invention comprises a mercury thermometer and a resistance meter 7, wherein the mercury thermometer comprises a thermometer shell 1, a liquid storage ball 3 arranged in the thermometer shell 1 and a tubule 2 arranged above the liquid storage ball 3, mercury is contained in the liquid storage ball 3, the thermometer shell 1 is provided with temperature scales 4, when the temperature of the environment where the liquid storage ball 3 is located changes, the volume of mercury in the liquid storage ball 3 changes, mercury volume expands and enters the tubule 2 to form a mercury column 8, because the volume change of mercury is proportional to the temperature change, the height of the mercury column 8, namely the temperature, can be read according to the temperature scales 4 on the thermometer shell 1, the invention is improved in that two resistance wires 5 in the vertical direction are arranged in the tubule 2 of the mercury thermometer, the resistance wires 5 penetrate through the whole tubule 2, the tops of the two resistance wires 5 are connected with the resistance meter 7 through leads 6, because the resistance of mercury is very small, and according to the characteristic that current always flows to the minimum direction of impedance, two resistance wires 5 positioned at the lower part of the mercury column 8 are short-circuited by mercury, the resistance meter 7 measures the actual resistance between the top ends of the two resistance wires 5 to be the resistance of the resistance wires 5 above the mercury column 8, and the resistance is in a direct proportional relation with the height of the resistance wires 5 exposed out of the mercury column 8, namely the height of the thin tube 2 above the mercury column 8 can be obtained by measuring the resistance, the height of the mercury column 8 can be obtained by subtracting the height from the total height of the thin tube 2, namely the height of the mercury column 8 and the resistance of the resistance wires 5 above the mercury column 8 are in a constant proportional relation, therefore, the height of the mercury column 8 can be converted according to a fixed proportion by measuring the resistance between the top ends of the two resistance wires 5, and then the temperature is obtained by conversion, and the automatic reading of the temperature of the mercury thermometer is realized.
The narrow tube 2 and the liquid storage ball 3 of the mercury thermometer of the present invention may be integrally formed of a glass material, or may be separately formed and then hermetically connected.
Example 2: as shown in fig. 2, the structure of the mercury thermometer is the same as that of embodiment 1, and the difference is that only one resistance wire 5 is arranged in the tubule 2, one end of each of the two measuring ends of the resistance meter 7 is connected to the top of the resistance wire 5 through a wire 6, and the other end of each of the two measuring ends is connected to the mercury in the liquid storage ball 3 through a wire 6, and the mercury is a conductor, so that the measured resistance is the resistance of the resistance wire 5 exposed above the mercury column 8, and the height of the exposed part of the resistance wire 5 can be calculated according to the resistance obtained through actual measurement, so that the height of the mercury column 8 is calculated, and the temperature is converted, and the automatic temperature reading of the mercury thermometer is realized.
As shown in fig. 3, the control circuit includes a control module, a wireless communication module and a power supply, the power supply is used for providing energy for the whole device, the control module is connected with the ohmmeter 7, the resistance signal measured by the ohmmeter 7 can be converted into a temperature value signal through the control module and transmitted to the wireless communication module, the real-time temperature value signal is transmitted to a remote detection terminal such as a computer or a mobile phone through the wireless communication module, and the temperature information on the remote detection terminal is read, so that the purpose of remotely observing the temperature in the detected area environment in real time is achieved.
The use method for remote temperature detection in the method comprises the following steps: when the remote temperature detection device provided by the invention is used for remote temperature detection, firstly, the environment needing temperature monitoring needs to be determined, if the space is large, the device needs to be arranged at multiple points at the same time, the temperature difference possibly existing in a certain area is prevented, the accuracy of the detection of the environmental temperature of the detected area is ensured, after the arrangement place is determined and the detection device is arranged, when the temperature of the area is changed, the height of the mercury column 8 in the mercury thermometer is increased or decreased due to the principle of thermal expansion and cold contraction, the temperature can be read on site, meanwhile, the resistance value of the resistance wire 5 above the mercury column 8 in the thermometer is correspondingly changed, then the resistance value signals of the resistance wire 5 above the mercury column 8 measured by the resistance meter 7 are converted into temperature signals through the proportion by the control module, and finally, the wireless communication module can remotely transmit the temperature information, the purpose of remote monitoring is achieved.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (7)
1. The utility model provides a long-range temperature-detecting device based on mercury thermometer which characterized in that: including mercury thermometer and control circuit, mercury thermometer includes the thermometer shell and locates the stock solution ball in the thermometer shell and locate the tubule of stock solution ball top, the splendid attire has mercury in the stock solution ball and is linked together with the tubule of top, and when mercury tank back of being heated, the volume of mercury can expand and rise along the tubule and form the mercury column, be equipped with the resistance wire along its mercury inflation direction in the tubule, control circuit obtains the resistance wire height of part above the mercury column including being used for measuring the ohmmeter of part resistance wire resistance size more than the mercury column through the conversion of the resistance size that records, and then calculates the height of mercury column according to the overall height of resistance wire to reachd the measured temperature of mercury thermometer.
2. A mercury thermometer-based remote temperature sensing device as recited in claim 1, wherein: two parallel resistance wires are arranged in the thin tube, the tops of the two resistance wires are connected with an ohmmeter through a lead, and the resistance between the top ends of the two resistance wires is measured through the ohmmeter.
3. A mercury thermometer-based remote temperature sensing device as recited in claim 1, wherein: a resistance wire is arranged in the thin tube, two measuring ends of the resistance meter are respectively connected with the top end of the resistance wire and mercury in the liquid storage ball, the mercury is used as a conductor, and the resistance of the resistance wire on the upper portion of the mercury column is obtained through measurement of the resistance meter.
4. A mercury thermometer-based remote temperature sensing device as claimed in claim 1 or 2, wherein: the thermometer shell is a glass shell, and the liquid storage ball and the thin tube are manufactured in an integrated mode or in a split mode.
5. A mercury thermometer-based remote temperature sensing device as claimed in claim 1 or 2, wherein: the resistance wire runs through the length direction of the whole thin tube.
6. A mercury thermometer-based remote temperature sensing device as claimed in claim 1 or 2, wherein: the control circuit also comprises a control module for converting the resistance size and the temperature value.
7. A mercury thermometer-based remote temperature sensing device as recited in claim 6, wherein: the control circuit further comprises a wireless communication module, and the wireless communication module is used for remotely transmitting the temperature value signal calculated by the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660793.XA CN113310588A (en) | 2021-06-15 | 2021-06-15 | Remote temperature detection device based on mercury thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110660793.XA CN113310588A (en) | 2021-06-15 | 2021-06-15 | Remote temperature detection device based on mercury thermometer |
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| Publication Number | Publication Date |
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| CN113310588A true CN113310588A (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110660793.XA Pending CN113310588A (en) | 2021-06-15 | 2021-06-15 | Remote temperature detection device based on mercury thermometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114627629A (en) * | 2022-02-23 | 2022-06-14 | 国网河北省电力有限公司平山县供电分公司 | High-temperature early warning device of power equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204119U (en) * | 1985-09-30 | 1986-07-09 | 王宗稳 | Temperature-digit sensor |
| CN2144341Y (en) * | 1992-11-29 | 1993-10-20 | 王申存 | Mercury thermal potentiometer |
| CN1078306A (en) * | 1992-05-04 | 1993-11-10 | 殷元章 | Linear temperature sensor |
| CN2624194Y (en) * | 2003-04-03 | 2004-07-07 | 周旗 | Digital mercurial thermometer |
| CN103557952A (en) * | 2013-11-11 | 2014-02-05 | 重庆材料研究院有限公司 | Intelligent mercurial thermometer capable of being monitored in real time |
| CN203587235U (en) * | 2013-11-11 | 2014-05-07 | 重庆材料研究院有限公司 | Resistance-type thermometer |
| CN111551268A (en) * | 2019-04-15 | 2020-08-18 | 华中科技大学同济医学院附属协和医院 | A kind of thermometer |
-
2021
- 2021-06-15 CN CN202110660793.XA patent/CN113310588A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85204119U (en) * | 1985-09-30 | 1986-07-09 | 王宗稳 | Temperature-digit sensor |
| CN1078306A (en) * | 1992-05-04 | 1993-11-10 | 殷元章 | Linear temperature sensor |
| CN2144341Y (en) * | 1992-11-29 | 1993-10-20 | 王申存 | Mercury thermal potentiometer |
| CN2624194Y (en) * | 2003-04-03 | 2004-07-07 | 周旗 | Digital mercurial thermometer |
| CN103557952A (en) * | 2013-11-11 | 2014-02-05 | 重庆材料研究院有限公司 | Intelligent mercurial thermometer capable of being monitored in real time |
| CN203587235U (en) * | 2013-11-11 | 2014-05-07 | 重庆材料研究院有限公司 | Resistance-type thermometer |
| CN111551268A (en) * | 2019-04-15 | 2020-08-18 | 华中科技大学同济医学院附属协和医院 | A kind of thermometer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114627629A (en) * | 2022-02-23 | 2022-06-14 | 国网河北省电力有限公司平山县供电分公司 | High-temperature early warning device of power equipment |
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