CN211013289U - High-precision temperature measuring sensor - Google Patents
High-precision temperature measuring sensor Download PDFInfo
- Publication number
- CN211013289U CN211013289U CN201922441631.8U CN201922441631U CN211013289U CN 211013289 U CN211013289 U CN 211013289U CN 201922441631 U CN201922441631 U CN 201922441631U CN 211013289 U CN211013289 U CN 211013289U
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- CN
- China
- Prior art keywords
- shell
- fixedly connected
- far away
- sleeve
- temperature measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 16
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 14
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000012856 packing Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 28
- 238000004891 communication Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 238000012546 transfer Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model is suitable for a sensor technical field provides a high accuracy temperature measurement sensor, including determine module and transmission assembly, determine module includes the shell, the inner chamber fixed connection of shell has current transmitter, one side fixed connection of shell has the armor sleeve, the inner chamber cover of armor sleeve is equipped with platinum resistance, platinum resistance with current transmitter electric connection, the inside wall fixed connection of armor sleeve has nanometer magnesium oxide packing layer; the nano magnesium oxide packing layer is arranged in the inner cavity of the armored sleeve, and the high heat conductivity of the nano magnesium oxide is utilized, so that the heat transfer efficiency in the temperature measuring process can be effectively improved, the temperature measuring speed and precision are improved, meanwhile, the surface area of the armored sleeve is effectively improved by arranging the protrusions on the outer side of the shell, the heat transfer efficiency is further improved, and the problems that the temperature measuring precision of a traditional temperature measuring sensor is low and the temperature measuring speed is slow are solved.
Description
Technical Field
The utility model belongs to the technical field of the sensor, especially, relate to a high accuracy temperature measurement sensor.
Background
The platinum resistance temperature sensor measures the temperature by utilizing the characteristic that the resistance value of the platinum changes along with the change of the temperature, and the display instrument indicates the temperature value corresponding to the resistance value of the platinum resistance. When the temperature gradient exists in the measured medium, the measured temperature is the average temperature in the medium layer in the range of the temperature sensing element, and the platinum resistance temperature sensor is used for measuring the temperature of air, soil and water. The sensor consists of a precision platinum thermal resistance element and a protective sleeve processed by a special process, and a four-core shielding signal cable is led out from the sensitive element for measurement, and the measurement can be generally carried out by adopting a four-wire measurement method so as to reduce the measurement error caused by the resistance of a lead. The platinum resistance temperature sensor has excellent interchangeability and long-term stability, and is widely applied to meteorological and environmental protection departments and the like.
The traditional temperature measurement sensor has low temperature measurement precision and low temperature measurement speed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high accuracy temperature sensor aims at solving traditional temperature sensor temperature measurement precision lower, the slower problem of temperature measurement speed.
The utility model is realized in such a way that the high-precision temperature measuring sensor comprises a detection component and a transmission component;
the detection assembly comprises a shell, a current transmitter is fixedly connected to the inner cavity of the shell, an armored sleeve is fixedly connected to one side of the shell, a platinum resistor is sleeved on the inner cavity of the armored sleeve, the platinum resistor is electrically connected with the current transmitter, a nano magnesium oxide packing layer is fixedly connected to the inner side wall of the armored sleeve, an epoxy resin glue filling layer is fixedly connected between the nano magnesium oxide packing layer and the platinum resistor, a plurality of groups of integrally-formed bulges are uniformly arranged on the outer side wall of the armored sleeve, and an integrally-formed wiring pipe is arranged on the outer side wall of the shell;
the transmission assembly comprises a transmission cable, one end of the transmission cable is fixedly connected with the junction tube and is far away from one side of the shell, the transmission cable is electrically connected with the current transducer, the transmission cable is far away from the one end fixedly connected with connecting tube of the junction tube, the connecting tube is far away from the one end fixedly connected with data acquisition conversion box of the transmission cable, the inner cavity fixedly connected with circuit conversion board of the data acquisition conversion box is fixedly connected with a circuit, the circuit conversion board is electrically connected with the transmission cable, the data acquisition conversion box is far away from one side fixedly connected with cable joint of the connecting tube, the cable joint is far away from one side fixedly connected with communication cable of the data acquisition conversion box, and the communication cable is electrically connected with the circuit conversion board.
Preferably, an end cap is screwed on one side of the outer shell far away from the armored sleeve.
Preferably, the center of one side of the end cover, which is far away from the shell, is provided with an integrally formed connecting sheet.
Preferably, a plurality of groups of integrally formed convex blocks are uniformly arranged on the periphery of the end cover.
Preferably, four corners of the data acquisition conversion box are provided with fixing pieces which are integrally formed.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a high accuracy temperature sensor sets up nanometer magnesium oxide packing layer through the inner chamber at the armoured sleeve pipe, utilizes the high thermal conductivity of nanometer magnesium oxide, can effectively improve the heat transfer efficiency at the temperature measurement in-process to improve temperature measurement speed and precision, set up the arch through the outside at the shell simultaneously, effectively improved armoured sleeve pipe's surface area, thereby further improve heat transfer efficiency, it is lower to have avoided traditional temperature sensor temperature measurement precision, the slower problem of temperature measurement speed.
Drawings
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is an enlarged view of the part A structure of the present invention;
fig. 3 is a top view of the armored sleeve structure of the present invention.
In the figure: 1-detection component, 11-shell, 12-current transducer, 13-armored sleeve, 14-end cover, 15-connecting sheet, 16-wiring tube, 17-bulge, 18-nano magnesium oxide packing layer, 19-platinum resistor, 110-epoxy resin encapsulating layer, 2-transmission component, 21-transmission cable, 22-connecting tube, 23-data acquisition converting box, 24-circuit converting board, 25-fixing sheet, 26-cable connector, 27-communication cable and 28-lug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a high-precision temperature measurement sensor comprises a detection component 1 and a transmission component 2;
the detection assembly 1 comprises a shell 11, an inner cavity of the shell 11 is fixedly connected with a current transmitter 12, one side of the shell 11 is fixedly connected with an armored sleeve 13, an inner cavity of the armored sleeve 13 is sleeved with a platinum resistor 19, the platinum resistor 19 is electrically connected with the current transmitter 12, an inner side wall of the armored sleeve 13 is fixedly connected with a nano magnesium oxide packing layer 18, an epoxy resin glue filling layer 110 is fixedly connected between the nano magnesium oxide packing layer 18 and the platinum resistor 19, a plurality of groups of integrally-formed bulges 17 are uniformly arranged on an outer side wall of the armored sleeve 13, and an integrally-formed wiring pipe 16 is arranged on an outer side wall of the shell;
the transmission assembly 2 includes a transmission cable 21, one end of the transmission cable 21 is fixedly connected to one side of the junction box 16 far away from the shell 11, the transmission cable 21 is electrically connected with the current transducer 12, one end of the transmission cable 21 far away from the junction box 16 is fixedly connected with a connecting pipe 22, one end of the connecting pipe 22 far away from the transmission cable 21 is fixedly connected with a data acquisition conversion box 23, an inner cavity of the data acquisition conversion box 23 is fixedly connected with a circuit conversion board 24, the circuit conversion board 24 is electrically connected with the transmission cable 21, one side of the data acquisition conversion box 23 far away from the connecting pipe 22 is fixedly connected with a cable connector 26, one side of the cable connector 26 far away from the data acquisition conversion box 23 is fixedly connected with a communication cable 27, and the communication cable.
In the embodiment, the platinum resistor 19 is electrified when temperature is measured by arranging the platinum resistor 19, the current transmitter 12, the transmission cable 21 and the circuit conversion board 24, the platinum resistor 19 generates resistance change along with the external temperature, a corresponding temperature value is calculated according to the gradient of the resistance value and the temperature change of the platinum resistor 19, the current transmitter 12 detects that the power supply current of the platinum resistor 19 is converted into a DC 4-20 mA constant current ring standard signal output according to linear proportion and is transmitted to the circuit conversion board 24 through the transmission cable 21, the nano magnesium oxide filler layer 18 is arranged in the inner cavity of the armored sleeve 13, the high heat-conducting property of nano magnesium oxide is utilized, the heat transfer efficiency in the temperature measuring process can be effectively improved, the temperature measuring speed and precision are improved, meanwhile, the surface area of the armored sleeve 13 is effectively improved by arranging the bulge 17 on the outer side of the shell 11, therefore, the heat transfer efficiency is further improved, and the problems of low temperature measurement precision and low temperature measurement speed of the traditional temperature measurement sensor are solved.
Further, an end cap 14 is screwed to a side of the outer shell 11 remote from the sheath 13.
In this embodiment, the end cap 14 may be used to unscrew the end cap 14 and repair and replace the current transducer 12 or the platinum resistor 19 when the current transducer 12 or the platinum resistor 19 fails.
Further, the end cap 14 is provided with an integrally formed connecting piece 15 at a side center away from the housing 11.
In the present embodiment, the sensor is easily fixed by providing the connection piece 15.
Further, a plurality of sets of integrally formed protrusions 28 are uniformly disposed around the end cap 14.
In the present embodiment, the bumps 28 are uniformly disposed on the outer side of the end cap 14, so that when the end cap 14 is disassembled, the bumps 28 can effectively increase friction with the hands of the disassembling and assembling personnel, thereby facilitating the disassembling and assembling of the end cap 14.
Furthermore, four corners of the data acquisition conversion box 23 are provided with fixing pieces 25 which are integrally formed.
In the present embodiment, the fixing pieces 25 are provided at four corners of the data collecting conversion cartridge 23, whereby the data collecting conversion cartridge 23 can be easily attached and fixed.
The utility model discloses a theory of operation and use flow: the utility model discloses install the back, be connected communication cable 27's one end and temperature signal receiving terminal and power supply terminal, when platinum resistance 19 circular telegram, platinum resistance 19 changes along with external temperature emergence resistance, and calculate corresponding temperature numerical value according to platinum resistance 19 resistance and temperature variation's gradiometer, it converts the DC4 ~ 20mA constant current ring standard signal according to linear proportion output to detect out platinum resistance 19 supply current by current transducer 12 again, and carry to circuit conversion board 24 through transmission cable 21, carry to temperature signal receiving terminal and power supply terminal through communication cable 27.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A high accuracy temperature measurement sensor which characterized in that: comprises a detection component (1) and a transmission component (2);
the detection assembly (1) comprises a shell (11), a current transmitter (12) is fixedly connected to an inner cavity of the shell (11), an armored sleeve (13) is fixedly connected to one side of the shell (11), a platinum resistor (19) is sleeved on the inner cavity of the armored sleeve (13), the platinum resistor (19) is electrically connected with the current transmitter (12), a nano magnesium oxide packing layer (18) is fixedly connected to the inner side wall of the armored sleeve (13), an epoxy resin glue-filling layer (110) is fixedly connected between the nano magnesium oxide packing layer (18) and the platinum resistor (19), a plurality of groups of integrally-formed bulges (17) are uniformly arranged on the outer side wall of the armored sleeve (13), and an integrally-formed wiring pipe (16) is arranged on the outer side wall of the shell (11);
the transmission assembly (2) comprises a transmission cable (21), one end of the transmission cable (21) is fixedly connected with the junction tube (16) far away from one side of the shell (11), the transmission cable (21) is electrically connected with the current transmitter (12), one end of the junction tube (16) is fixedly connected with a connecting tube (22) far away from the transmission cable (21), one end of the connecting tube (22) far away from the transmission cable (21) is fixedly connected with a data acquisition conversion box (23), an inner cavity of the data acquisition conversion box (23) is fixedly connected with a circuit conversion board (24), the circuit conversion board (24) is electrically connected with the transmission cable (21), one side of the data acquisition conversion box (23) far away from the connecting tube (22) is fixedly connected with a cable connector (26), one side of the data acquisition conversion box (23) is fixedly connected with a communication cable (27) far away from the cable connector (26), the communication cable (27) is electrically connected with the circuit conversion board (24).
2. A high accuracy temperature sensor according to claim 1, wherein: an end cover (14) is connected to one side, far away from the armored sleeve (13), of the shell (11) in a threaded mode.
3. A high accuracy temperature sensor according to claim 2, wherein: and the center of one side of the end cover (14) far away from the shell (11) is provided with an integrally formed connecting sheet (15).
4. A high accuracy temperature sensor according to claim 2, wherein: and a plurality of groups of integrally formed lugs (28) are uniformly arranged on the periphery of the end cover (14).
5. A high accuracy temperature sensor according to claim 1, wherein: four corners of the data acquisition conversion box (23) are provided with fixing pieces (25) which are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441631.8U CN211013289U (en) | 2019-12-30 | 2019-12-30 | High-precision temperature measuring sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922441631.8U CN211013289U (en) | 2019-12-30 | 2019-12-30 | High-precision temperature measuring sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211013289U true CN211013289U (en) | 2020-07-14 |
Family
ID=71482225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922441631.8U Expired - Fee Related CN211013289U (en) | 2019-12-30 | 2019-12-30 | High-precision temperature measuring sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211013289U (en) |
-
2019
- 2019-12-30 CN CN201922441631.8U patent/CN211013289U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 |