CN203949736U - A kind of temperature measuring equipment and system - Google Patents
A kind of temperature measuring equipment and system Download PDFInfo
- Publication number
- CN203949736U CN203949736U CN201420259119.6U CN201420259119U CN203949736U CN 203949736 U CN203949736 U CN 203949736U CN 201420259119 U CN201420259119 U CN 201420259119U CN 203949736 U CN203949736 U CN 203949736U
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- temperature
- module
- heating
- temperature sensor
- measuring equipment
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Abstract
The utility model discloses a kind of temperature measuring equipment and system, a kind of temperature measuring equipment, comprises temperature sensor, it is characterized in that: also comprise the heating module for described temperature sensor heating.A kind of temperature measurement system, comprises at least two groups for temperature measurement module that alternately free of discontinuities is measured and D/A converter module, control module; Described temperature measurement module comprises the heating module heating for the temperature sensor of thermometric, for temperature sensor; Described temperature sensor output terminal connects the input end of analog-to-digital conversion module, and described analog-to-digital conversion module output terminal connects the input end of control terminal.This device can overcome the limitation that produces error because aqueous water or solid water stick to sensor surface, has improved measuring accuracy.
Description
Technical field
The utility model relates to a kind of temperature measuring equipment and system.
Background technology
Temperature is a very important environmental parameter, people's life and environment temperature are closely bound up, in industrial processes, need real-time measures ambient temperature, in agricultural production, also be unable to do without temperature survey, at present, in the weather environment such as weather station and radiosonde field of detecting, conventional temperature sensor adopts platinum resistance or thermistor to carry out temperature survey more.Because the liquid state such as ice, snow, raindrop, water dust, dew or solid water may stick to sensor surface, the evaporation endothermic that water dust, raindrop and dew drip, the thawing of ice and snow and distillation all may cause measuring the actual temperature of temperature lower than atmospheric environment, what water dust, raindrop and dew dripped freeze to discharge latent heat may cause measures ambient temperature higher than environment temperature, causes certain measuring error.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of temperature measuring equipment and system for the deficiencies in the prior art, it is simple in structure and can overcome the limitation that produces error because aqueous water or solid water stick to sensor surface, has improved measuring accuracy.
The utility model is for solving the problems of the technologies described above by the following technical solutions
A kind of temperature measuring equipment, comprises temperature sensor, it is characterized in that: also comprise the heating module for described temperature sensor heating.
Preferably, described heating module is heating resistor.
Preferably, described temperature sensor is platinum resistance.
Preferably, the precision resistance that described heating resistor is Low Drift Temperature.
A kind of temperature measurement system, comprises at least two groups for the temperature measurement module that alternately free of discontinuities is measured, and D/A converter module, replaces for temperature measurement module the control module that free of discontinuities is measured; Described temperature measurement module comprises the heating module heating for the temperature sensor of thermometric, for temperature sensor.
Preferably, described control module is single-chip microcomputer.
Preferably, described single-chip microcomputer is MSP430.
The utility model adopts above technical scheme compared with prior art, has following technique effect:
1, simple in structure, cost is lower, be easy to make;
2, by temperature sensor is carried out to heating, drying processing, effectively overcome the limitation that produces error because aqueous water or solid water stick to sensor surface, improve measuring accuracy.
3, alternately complete oven dry, cooling and surveying work by two sensors, realize free of discontinuities and measure, effectively improve and measure efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model temperature measuring equipment.
Number in the figure is specific as follows: 101-thermometric platinum resistance, 102-heating resistor, the fixed support of 103-sensor, 104-thermometric platinum resistance lead-in wire, 105-heating resistor lead-in wire.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
A kind of temperature measuring equipment, comprises temperature sensor, it is characterized in that: also comprise the heating module for described temperature sensor heating; Described heating module is heating resistor, and described temperature sensor is platinum resistance.Described heating resistor is the precision resistance of Low Drift Temperature.
A kind of temperature measuring equipment, comprises at least two groups for the temperature measurement module that alternately free of discontinuities is measured, and D/A converter module, replaces for temperature measurement module the control module that free of discontinuities is measured; Described temperature measurement module comprises the heating module heating for the temperature sensor of thermometric, for temperature sensor; Described temperature sensor output terminal connects the input end of analog-to-digital conversion module, and described analog-to-digital conversion module output terminal connects the input end of control terminal.Described control module is MSP430.
As shown in Figure 1; A kind of temperature measuring equipment and system, comprise two thermometric platinum resistance, and described platinum resistance generally adopts film platinum resistor; This sensor also comprises the control circuit of two heating resistors and two heating resistors.Described heating resistor can be fixed on film platinum resistor bottom side, uses insulating heat-conductive silica gel heating resistor can be connected with platinum resistance, and heating resistor is for carrying out heating, drying to thermometric platinum resistance; Described heating resistor adopts the precision resistance of Low Drift Temperature; Described heating resistor is gone between and is connected the heating resistor control circuit based on metal-oxide-semiconductor by heating resistor, and described heating resistor control circuit comprises the metal-oxide-semiconductor being connected with heating resistor, and the break-make of this metal-oxide-semiconductor is controlled by a controller.Two platinum resistance are connected with a resistance measuring circuit, and platinum resistance mainly comprises an analog to digital converter (ADC) by thermometric platinum resistance lead-in wire linking number weighted-voltage D/A converter resistance measuring circuit, and this ADC is connected with controller.
?when measurement, two groups of temperature measuring equipments hocket heating, drying, naturally cooling and thermometric.When a sensor measurement environment temperature, second sensor enters conducting state control heating resistor by control metal-oxide-semiconductor thermometric platinum resistance carried out to heating, drying, and the length of heat time is T1.After heating finishes, metal-oxide-semiconductor is conducting no longer, and first sensor dispels the heat by cross-ventilation, and temperature progressively levels off to environment temperature, and the length of this period of cool time is T2.Sensor is cooling complete after, second sensor carries out thermometric, the time of thermometric is T1+T2.In the time that second sensor starts to carry out thermometric, first sensor starts heating, drying.In this way, two sensors can replace and back and forth realize free of discontinuities and measure.
Claims (7)
1. a temperature measuring equipment, comprises temperature sensor, it is characterized in that: also comprise the heating module for described temperature sensor heating.
2. temperature measuring equipment according to claim 1, is characterized in that: described heating module is heating resistor.
3. temperature measuring equipment according to claim 1, is characterized in that: described temperature sensor is platinum resistance.
4. temperature measuring equipment according to claim 2, is characterized in that: the precision resistance that described heating resistor is Low Drift Temperature.
5. a temperature measurement system, is characterized in that: comprise at least two groups for the temperature measurement module that alternately free of discontinuities is measured, D/A converter module, replace for temperature measurement module the control module that free of discontinuities is measured; Described temperature measurement module comprises the heating module heating for the temperature sensor of thermometric, for temperature sensor.
6. temperature measurement system according to claim 5, is characterized in that: described control module is single-chip microcomputer.
7. temperature measurement system according to claim 6, is characterized in that: described single-chip microcomputer is MSP430.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259119.6U CN203949736U (en) | 2014-05-21 | 2014-05-21 | A kind of temperature measuring equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420259119.6U CN203949736U (en) | 2014-05-21 | 2014-05-21 | A kind of temperature measuring equipment and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203949736U true CN203949736U (en) | 2014-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259119.6U Expired - Fee Related CN203949736U (en) | 2014-05-21 | 2014-05-21 | A kind of temperature measuring equipment and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203949736U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330184A (en) * | 2014-10-21 | 2015-02-04 | 苏州德鲁森自动化系统有限公司 | Temperature measurement method overcoming errors caused by adhesion of liquid water and solid water |
| CN107063493A (en) * | 2017-05-27 | 2017-08-18 | 成都凯天电子股份有限公司 | Double function thermometrics heat sensor |
| CN110465636A (en) * | 2019-08-22 | 2019-11-19 | 安徽枫慧金属股份有限公司 | A kind of temperature of aluminum liquid control system |
-
2014
- 2014-05-21 CN CN201420259119.6U patent/CN203949736U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330184A (en) * | 2014-10-21 | 2015-02-04 | 苏州德鲁森自动化系统有限公司 | Temperature measurement method overcoming errors caused by adhesion of liquid water and solid water |
| CN107063493A (en) * | 2017-05-27 | 2017-08-18 | 成都凯天电子股份有限公司 | Double function thermometrics heat sensor |
| CN110465636A (en) * | 2019-08-22 | 2019-11-19 | 安徽枫慧金属股份有限公司 | A kind of temperature of aluminum liquid control system |
| CN110465636B (en) * | 2019-08-22 | 2021-05-28 | 安徽枫慧金属股份有限公司 | Aluminum liquid temperature control system |
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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 |
Granted publication date: 20141119 Termination date: 20160521 |
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| CF01 | Termination of patent right due to non-payment of annual fee |