CN210741696U - Armored digital temperature sensor - Google Patents
Armored digital temperature sensor Download PDFInfo
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- CN210741696U CN210741696U CN201920850846.2U CN201920850846U CN210741696U CN 210741696 U CN210741696 U CN 210741696U CN 201920850846 U CN201920850846 U CN 201920850846U CN 210741696 U CN210741696 U CN 210741696U
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- temperature sensor
- digital temperature
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- heat
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Abstract
The utility model discloses an armor digital temperature sensor, including digital temperature sensor, heat-conducting glue, sleeve pipe, bolt, terminal and inlet wire, digital temperature sensor leads to heat-conducting silica gel and contacts and with heat-conducting silica gel encapsulates together in the sleeve pipe, digital temperature sensor is located sheathed tube one end, the bolt is located the sheathed tube other end, the bolt is used for connecting the terminal with the sleeve pipe, the one end of terminal is provided with the inlet wire. The utility model has a temperature measuring range of-55 ℃ to +125 ℃. The integrated chip is used, the single bus technology is adopted, external interference can be effectively reduced, the measurement precision is improved, meanwhile, the measured temperature can be directly converted into a serial digital signal for microcomputer processing, the interface is simple, and data transmission and processing are simplified.
Description
Technical Field
The utility model relates to a digital temperature sensor, especially an armor digital temperature sensor.
Background
The sensor commonly used in the market at present is a PT100 temperature sensor, the applicable temperature of the sensor is 0-100 ℃, the temperature measuring accuracy is low, and the sensor can be processed by a microprocessor after being converted into a digital signal through a special interface circuit.
Disclosure of Invention
In order to solve the technical problem, an object of the present invention is to provide a patent name.
The utility model discloses a following technical scheme realizes:
the utility model provides an armor digital temperature sensor, includes digital temperature sensor, heat-conducting glue, sleeve pipe, bolt, terminal and inlet wire, digital temperature sensor leads to heat-conducting silica gel and contacts and with heat-conducting silica gel encapsulates together in the sleeve pipe, digital temperature sensor is located sheathed tube one end, the bolt is located the sheathed tube other end, the bolt is used for connecting the terminal with the sleeve pipe, the one end of terminal is provided with the inlet wire.
Preferably, the model of the digital temperature sensor is DS18B 20.
Preferably, the wire inlet is a single-wire interface.
Preferably, the temperature measuring range of the armored digital temperature sensor is-55 ℃ to +125 ℃.
The utility model discloses following beneficial effect has: the temperature measuring range is-55 ℃ to +125 ℃. The integrated chip is used, the single bus technology is adopted, external interference can be effectively reduced, the measurement precision is improved, meanwhile, the measured temperature can be directly converted into a serial digital signal for microcomputer processing, the interface is simple, and data transmission and processing are simplified.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of the present invention.
In the figure: 1. a digital temperature sensor; 2. a sleeve; 3. heat conducting glue; 4. a nut; 5. a nut; 6. a binding post; 7. and (4) a nut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to the attached figure 1 of the specification, the armored digital temperature sensor comprises a digital temperature sensor, heat-conducting glue, a sleeve, a bolt, a wiring terminal and a wire inlet, wherein the digital temperature sensor is in contact with the heat-conducting glue and packaged in the sleeve together with the heat-conducting glue, the digital temperature sensor is located at one end of the sleeve, the bolt is located at the other end of the sleeve, the bolt is used for connecting the wiring terminal with the sleeve, and the wire inlet is formed in one end of the wiring terminal. The digital temperature sensor adopts a single bus technology, and directly converts the measured temperature into a serial digital signal to be provided to a microprocessor for processing.
The microprocessor includes a temperature register, a low temperature coefficient oscillator, a first down counter, and a second down counter. Before each measurement, the base number corresponding to-55 ℃ is firstly respectively arranged in a first subtraction counter and a temperature register, namely the subtraction counter and the temperature register are preset in a base number value corresponding to-55 ℃. When measuring temperature, the first down counter counts down the pulse signal generated by the low temperature coefficient oscillator, when the preset value of the first down counter is reduced to 0, the value of the temperature register is increased by 1, the preset value of the first down counter is loaded again, the first down counter restarts to count the pulse signal generated by the low temperature coefficient oscillator, the second down counter is preset to the number of measurement times, when the first down counter is reset once, the preset value of the second down counter is reduced by 1, the process is repeated until the second down counter counts to 0, the accumulation of the value of the temperature register is stopped, and at the moment, the value in the temperature register is the measured temperature.
The model of the digital temperature sensor is DS18B 20. The wire inlet is a single-wire interface. The temperature measuring range of the armored digital temperature sensor is-55 ℃ to +125 ℃.
The digital temperature sensor is different from the traditional thermistor in that an integrated chip is used, a single bus technology is adopted, external interference can be effectively reduced, the measurement precision is improved, meanwhile, the measured temperature can be directly converted into a serial digital signal for microcomputer processing, an interface is simple, and data transmission and processing are simplified. Due to the unique single-wire interface mode, the DS18B20 only needs one interface wire to realize the bidirectional communication between the microprocessor and the DS18B20 when being connected with the microprocessor.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (1)
1. The utility model provides an armor digital temperature sensor, its characterized in that, includes digital temperature sensor, heat-conducting glue, sleeve pipe, bolt, terminal and inlet wire, digital temperature sensor leads to heat-conducting silica gel and contacts and with heat-conducting silica gel encapsulates together in the sleeve pipe, digital temperature sensor is located sheathed tube one end, the bolt is located the sheathed tube other end, the bolt is used for connecting the terminal with the sleeve pipe, the one end of terminal is provided with the inlet wire, digital temperature sensor's model is DS18B20, the inlet wire is the single line interface, armor digital temperature sensor's temperature measurement scope is-55 ℃ - +125 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920850846.2U CN210741696U (en) | 2019-06-06 | 2019-06-06 | Armored digital temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920850846.2U CN210741696U (en) | 2019-06-06 | 2019-06-06 | Armored digital temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210741696U true CN210741696U (en) | 2020-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920850846.2U Active CN210741696U (en) | 2019-06-06 | 2019-06-06 | Armored digital temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210741696U (en) |
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2019
- 2019-06-06 CN CN201920850846.2U patent/CN210741696U/en active Active
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