CN219935128U - Small waterproof PT100 signal transmitter - Google Patents
Small waterproof PT100 signal transmitter Download PDFInfo
- Publication number
- CN219935128U CN219935128U CN202321014858.4U CN202321014858U CN219935128U CN 219935128 U CN219935128 U CN 219935128U CN 202321014858 U CN202321014858 U CN 202321014858U CN 219935128 U CN219935128 U CN 219935128U
- Authority
- CN
- China
- Prior art keywords
- waterproof
- signal transmitter
- transmitter
- control board
- transmitter control
- 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.)
- Active
Links
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a small waterproof PT100 signal transmitter which comprises a transmitter control board, wherein one side of the upper part of the transmitter control board is provided with an output terminal, the other side of the upper part of the transmitter control board is provided with an input terminal, the transmitter control board is positioned in a cylinder, and two ends of the cylinder are respectively connected with a waterproof joint. According to the utility model, the transmitter control board is designed into an integrated bidirectional closed end by adopting a bidirectional closed opposite-plug mode, one end can be closely connected with the PT100 temperature sensor, one end can output 0 (4) -20ma analog quantity signals to be connected with the AD module, and a cable is not required to be laid again, so that the problems that the PT100 sensor is inaccurate in measurement due to too long or no compensation wire of the connection cable and the PT100 sensor is inaccurate in measurement due to strong electric interference of the connection cable are solved, and the working efficiency is greatly improved.
Description
Technical Field
The utility model relates to the technical field of industrial temperature measurement equipment control, in particular to a small waterproof PT100 signal transmitter.
Background
The PT100 temperature sensor is a meter that converts a temperature variable into a transmissible standardized output signal. The method is mainly used for measuring and controlling the temperature parameters of the industrial process. Transmitters with sensors are typically composed of two parts, a sensor and a signal transducer.
However, too long connection cable between the PT100 temperature sensor and the signal receiving module can cause too large internal resistance of the cable, in addition, the PT100 signal is also subject to strong current environment interference in the transmission process, the above conditions can cause inaccurate temperature data reading, and when the PT100 temperature signal needs to be changed into a signal with strong anti-interference capability, such as 0 (4) -20ma, which can be transmitted remotely, the following two methods are generally adopted at present:
1. the installed PT100 temperature sensor was replaced with a PT100 temperature sensor with a transducer. The method needs to consider the problems of the installation mode, the wiring mode, the installation space, the dismantling and installing cost and the like of the new sensor and the old sensor.
2. The cable of the PT100 temperature sensor is connected to the signal transmission module in the control box, and the method needs to consider the problems of the installation position of the control box, the distance between the sensor and the control box, the changing and laying of the sensor connecting cable and the like.
When the two methods are used, too many practical factors are needed to be considered, and aiming at the problems, how to provide a method capable of changing the signal of the installed PT100 temperature sensor into the signal of 0 (4) -20ma conveniently, quickly and at low cost becomes a technical problem which needs to be solved urgently.
Disclosure of Invention
Aiming at the technical problems in the related art, the utility model provides a small waterproof PT100 signal transmitter, which can overcome the defects in the prior art.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a small-size waterproof PT100 signal transmitter, includes the transmitter control panel, upper portion one side of transmitter control panel is equipped with output terminal, the upper portion opposite side of transmitter control panel is equipped with input terminal, the transmitter control panel is located the inside of cylinder, the both ends of cylinder are connected with waterproof joint respectively.
Further, the output current of the output terminal ranges from 0ma to 20ma.
Further, the output current of the output terminal ranges from 4 ma to 20ma.
Further, the column body is in threaded connection with the waterproof joint.
Further, the waterproof joint comprises a waterproof joint I and a waterproof joint II.
Further, a first thread is arranged at one end, connected with the column, of the waterproof joint I, and a second thread is arranged at one end, connected with the column, of the waterproof joint II.
Further, the two ends of the inner part of the cylinder are respectively provided with an internal thread which is connected with the corresponding first thread and the corresponding second thread.
Further, the first thread and the second thread are connected with the corresponding internal threads.
Further, the transmitter control board comprises a power module, a temperature acquisition module, a high-precision conversion module and an output module.
Further, the diameter of the cylinder is 12mm.
The utility model has the beneficial effects that: according to the utility model, the transmitter control board is designed into an integrated bidirectional closed end by adopting a bidirectional closed opposite-plug mode, one end can be closely connected with the PT100 temperature sensor, one end can output 0 (4) -20ma analog quantity signals to be connected with the AD module, and cables are not required to be laid again, so that the problems that the PT100 sensor is inaccurate in measurement due to too long or no compensation wire of the connecting cable and the PT100 sensor is inaccurate in measurement due to strong electric interference of the connecting cable are solved, the sensor can be widely used in space with severe industrial field environment or narrow use environment and requirements for temperature detection, and the working efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a split construction of a small waterproof PT100 signal transmitter according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an assembled construction of a small waterproof PT100 signal transmitter according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a device for a small waterproof PT100 signal transducer according to an embodiment of the present utility model;
in the figure: 1. a transmitter control board; 2. an output terminal; 3. an input terminal; 4. a column; 5. a waterproof joint I; 6. a waterproof joint II; 7. a first thread; 8. a second thread; 9. and (5) an internal thread.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
As shown in fig. 1-2, a small waterproof PT100 signal transmitter according to an embodiment of the present utility model includes a transmitter control board 1, an output terminal 2 is disposed on one side of an upper portion of the transmitter control board 1, an input terminal 3 is disposed on another side of the upper portion of the transmitter control board 1, the transmitter control board 1 is located inside a column 4, and two ends of the column 4 are connected with waterproof connectors respectively.
In an embodiment, the output current of the output terminal 2 ranges from 0ma to 20ma.
In an embodiment, the output current of the output terminal 2 ranges from 4 ma to 20ma.
In an embodiment, the column 4 is in threaded connection with a waterproof joint.
In an embodiment, the waterproof joint comprises a waterproof joint I5 and a waterproof joint II 6.
In the embodiment, a first thread 7 is disposed at the end of the first waterproof joint 5 connected with the column 4, and a second thread 8 is disposed at the end of the second waterproof joint 6 connected with the column 4.
In the embodiment, the two ends of the inner portion of the cylinder 4 are respectively provided with an internal thread 9 connected with the corresponding first thread 7 and the corresponding second thread 8.
In an embodiment, the first thread 7 and the second thread 8 are connected with the corresponding internal thread 9.
In an embodiment, the transmitter control board 1 includes a power module, a temperature acquisition module, a high-precision conversion module, and an output module.
In an embodiment, the diameter of the column 4 is 12mm.
In order to facilitate understanding of the above technical solutions of the present utility model, the following describes the above technical solutions of the present utility model in detail by a specific usage manner.
When the waterproof PT100 signal transmitter is particularly used, the PT100 signal transmitter control board is composed of a power supply module, a temperature acquisition module, a high-precision conversion module and an output module. The power module adopts a reverse protection diode and a capacitance filtering measure, so that the malfunction caused by the electrostatic discharge effect, the surge and the noise of the switching power supply can be effectively prevented, and the rear-end connecting device is effectively protected; the temperature acquisition module and the high-precision conversion module adopt an import special chip, and the PT100 sensor provides complete current excitation by utilizing a high-precision current source through accessing an electric bridge, so that the stability of signal acquisition is ensured. The output module adopts ferrite magnetic beads to isolate in order to ensure the reliability of signals, and avoids the interference of high frequency to the signals.
The PT100 temperature transmitter shell consists of a flame-retardant acid and alkali-resistant material cylinder with the diameter of 12mm and sealing waterproof plugs at two ends. The cylindrical structure with the diameter of 12mm can enable the PT100 temperature transmitter to be consistent with the wiring form of the connecting cable, and the PT100 temperature transmitter can be conveniently placed into a wire groove, a wire pipe and a hose, so that the on-site cable laying state is not damaged. The two ends of the sealing waterproof plug are provided with sealing waterproof plugs. The sealing performance of the wiring port can be ensured while the PT100 sensor is connected with the extension cable, and the cable has certain stretch-proof capability.
In summary, by means of the above technical scheme, the transmitter control board is designed to be an integrated bidirectional closed end in a bidirectional closed opposite-plug mode, one end of the transmitter control board can be connected to the PT100 temperature sensor nearby, and the other end of the transmitter control board can output 0 (4) -20ma analog quantity signals to be connected to the AD module without laying cables again, so that the problems that the PT100 sensor is inaccurate in measurement due to too long or uncompensated cables and the PT100 sensor is inaccurate in measurement due to strong electric interference of the cables are solved, the transmitter control board can be widely used in space with severe industrial field environment or narrow use environment and requirements for temperature detection, and the working efficiency can be greatly improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a small-size waterproof PT100 signal transmitter, its characterized in that, includes transmitter control panel (1), upper portion one side of transmitter control panel (1) is equipped with output terminal (2), the upper portion opposite side of transmitter control panel (1) is equipped with input terminal (3), transmitter control panel (1) are located the inside of cylinder (4), the both ends of cylinder (4) are connected with waterproof joint respectively.
2. The miniature waterproof PT100 signal transmitter of claim 1, wherein the output terminal (2) outputs a current in the range of 0-20ma.
3. The miniature waterproof PT100 signal transmitter of claim 1, wherein the output terminal (2) outputs a current in the range of 4-20ma.
4. A compact waterproof PT100 signal transmitter as claimed in any one of claims 1-3, wherein the post (4) is threaded with a waterproof joint.
5. The miniature waterproof PT100 signal transmitter of claim 4, wherein the waterproof joints include a waterproof joint one (5) and a waterproof joint two (6).
6. The small waterproof PT100 signal transmitter of claim 5, wherein the waterproof joint one (5) has a first thread (7) at the end connected to the column (4), and the waterproof joint two (6) has a second thread (8) at the end connected to the column (4).
7. The small waterproof PT100 signal transmitter of claim 6, wherein the two ends of the inside of the column (4) are provided with internal threads (9) connected to the corresponding first threads (7) and the corresponding second threads (8).
8. The miniature waterproof PT100 signal transmitter of claim 7, wherein the first thread (7) and the second thread (8) are both connected to the corresponding internal thread (9).
9. The miniature waterproof PT100 signal transmitter of claim 1, wherein the transmitter control board (1) comprises a power module, a temperature acquisition module, a high precision conversion module, and an output module.
10. The miniature waterproof PT100 signal transmitter of claim 1, wherein the cylinder (4) has a diameter of 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321014858.4U CN219935128U (en) | 2023-04-28 | 2023-04-28 | Small waterproof PT100 signal transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321014858.4U CN219935128U (en) | 2023-04-28 | 2023-04-28 | Small waterproof PT100 signal transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219935128U true CN219935128U (en) | 2023-10-31 |
Family
ID=88499149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321014858.4U Active CN219935128U (en) | 2023-04-28 | 2023-04-28 | Small waterproof PT100 signal transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219935128U (en) |
-
2023
- 2023-04-28 CN CN202321014858.4U patent/CN219935128U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102980715B (en) | Capacitance pressure transmitter and pressure capsule system | |
| CN105953715A (en) | Intelligent bus eddy current displacement sensor with integrated structure | |
| CN201364171Y (en) | Digital composite sensor | |
| CN219935128U (en) | Small waterproof PT100 signal transmitter | |
| CN109445399B (en) | Hydropower station hydraulic working gate on-line monitoring device and monitoring method | |
| CN215761650U (en) | Wireless digital temperature transmitter device | |
| CN2839992Y (en) | Digital pressure sensor | |
| CN104848895A (en) | Anti-intensive-impact and high-voltage-resistant temperature pressure sensor combined device | |
| CN204902874U (en) | Anti thump and high pressure resistant temperature and pressure sensor composite set | |
| CN203177797U (en) | Displacement sensor used in switch quantity control | |
| CN201408370Y (en) | Liquid-level monitoring device for boiler drum | |
| CN214407636U (en) | Split type NB-IOT electronic remote transmission valve control water meter | |
| CN203547711U (en) | Logging exit-entrance wireless integrated sensor device | |
| CN102081027B (en) | Mechatronics density transmitter | |
| CN204556160U (en) | A kind of digital pressure transmitter | |
| CN203812059U (en) | A remote measurement and control terminal apparatus | |
| CN103792929A (en) | Remote measurement and control terminal device | |
| CN220398681U (en) | Mining liquid level temperature sensor based on magnetostriction | |
| CN202794159U (en) | Water quality or solution parameter gauging transmitter | |
| CN214251365U (en) | Lightning protection type pressure transmitter subassembly | |
| CN205785049U (en) | Integral structure intelligent bus eddy current displacement sensor | |
| CN220251147U (en) | Mining magnetostriction liquid level temperature sensor with compact structure | |
| CN211452403U (en) | Waterproof type industrial instrument collector | |
| CN215910563U (en) | Intelligent logging conductivity sensor | |
| CN220063118U (en) | Real-time monitoring system for groundwater flow direction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |