CN215495662U - Temperature sensor training device - Google Patents
Temperature sensor training device Download PDFInfo
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- CN215495662U CN215495662U CN202121611138.7U CN202121611138U CN215495662U CN 215495662 U CN215495662 U CN 215495662U CN 202121611138 U CN202121611138 U CN 202121611138U CN 215495662 U CN215495662 U CN 215495662U
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- temperature sensor
- plc
- water bath
- touch screen
- temperature sensors
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000002955 isolation Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005485 electric heating Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a temperature sensor training device, which belongs to the technical field of electric automation training equipment. The water bath is driven to heat through the PLC, detection results of the temperature sensors are displayed through the touch screen, the infrared temperature sensors and the thermocouple temperature sensors are driven to move at a constant speed through the electric push rod, and practical training students can visually know the electric heating changes of the temperature sensors and the influence of the installation positions on the measurement results, so that different characteristics of the temperature sensors can be conveniently understood, and the teaching effect is improved.
Description
Technical Field
The utility model belongs to the technical field of electric automatic training equipment, and particularly relates to a temperature sensor training device.
Background
The temperature sensor is the sensor with the widest application range in actual production and life, the temperature sensor is roughly divided into an infrared temperature sensor, a thermocouple temperature sensor and a thermistor temperature sensor, various temperature sensors have different thermoelectric change laws, the installation position of the sensor has certain influence on the measurement result, students cannot visually understand different characteristics of various sensors in the learning process, proper temperature sensors cannot be selected according to actual conditions, and the teaching effect is poor.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the background art, the utility model provides a temperature sensor training device, which is convenient for students to visually know the thermoelectric change rules of various temperature sensors and improves the teaching effect.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a temperature sensor training device comprises a water bath, an electric heater, an infrared temperature sensor, a thermocouple temperature sensor, a thermistor temperature sensor, an electric push rod, a PLC (programmable logic controller) and a touch screen; the bottom of the water bath is provided with an electric heater, the inner wall of the water bath is vertically provided with thermistor temperature sensors at even intervals, the top surface of the water bath is provided with a hoisting support, the hoisting support is connected with the fixed end of an electric push rod, the movable end of the electric push rod is provided with a mounting plate, the mounting plate is provided with an infrared temperature sensor and a thermocouple temperature sensor, the outer wall of the water bath is provided with a touch screen, and a PLC (programmable logic controller) is connected with the electric heater, the infrared temperature sensor, the thermocouple temperature sensor, the thermistor temperature sensors and the touch screen.
Furthermore, the electric heater is connected with a voltage transmitter, a current transmitter and a power adjusting module, the voltage transmitter and the current transmitter are connected with the digital quantity input end of the PLC, and the power adjusting module is connected with the digital quantity output end of the PLC.
Furthermore, a sensor connecting hole is formed in the lower end of the touch screen and is connected with the digital quantity input end of the PLC through an isolation transmitter.
Furthermore, the mounting plate lateral wall even interval be provided with a plurality of connect the via hole, connect the via hole and mount pad fixed connection, thermocouple temperature sensor sets up in the mount pad.
The utility model has the beneficial effects that: the water bath is driven to heat through the PLC, detection results of the temperature sensors are displayed through the touch screen, the infrared temperature sensors and the thermocouple temperature sensors are driven to move at a constant speed through the electric push rod, and practical training students can visually know the electric heating changes of the temperature sensors and the influence of the installation positions on the measurement results, so that different characteristics of the temperature sensors can be conveniently understood, and the teaching effect is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of the circuit connections of the present invention;
FIG. 3 is a circuit diagram of the present invention;
fig. 4 is a schematic view of the mounting seat structure.
In the figure, 1-a water bath, 2-an electric heater, 3-an infrared temperature sensor, 4-a thermocouple temperature sensor, 5-a thermistor temperature sensor, 6-an electric push rod, 7-a hoisting support, 8-a mounting plate, 9-a mounting seat, 10-a display, 11-a sensor connecting hole, 12-a PLC controller, 13-an isolation transmitter, 21-a voltage transmitter, 22-a voltage transmitter, 23-a power adjusting module and 91-a connecting through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in fig. 1, the practical training device for the temperature sensor comprises a water bath 1, an electric heater 2, an infrared temperature sensor 3, a thermocouple temperature sensor 4, a thermistor temperature sensor 5, an electric push rod 6, a PLC controller 12 and a touch screen 10. The water bath 1 be concave type structure, inside recess is used for holding the heating water, water bath 1 bottom is provided with electric heater 2, electric heater 2 is used for heating water to the assigned temperature and keeps the temperature invariable, water bath 1 inner wall evenly spaced vertically is provided with thermistor temperature sensor 5, each thermistor temperature sensor 5 is different with electric heater 2 interval, the student can directly perceivedly know the temperature variation condition apart from the thermistor temperature sensor 5 of the different intervals of heat source when actual measurement. The top surface of the water bath 1 is provided with a hoisting bracket 7, the hoisting bracket 7 is connected with the fixed end of an electric push rod 6, the movable end of the electric push rod 6 is provided with a mounting plate 8, the mounting plate 8 is provided with an infrared temperature sensor 3 and a thermocouple temperature sensor 4, the electric push rod 6, the infrared temperature sensor 3 and the thermocouple temperature sensor 4 are connected with a PLC (programmable logic controller) 12, the PLC 12 drives the electric push rod 6 to move at a constant speed to drive the infrared temperature sensor 3 and the thermocouple temperature sensor 4 to move at a constant speed, so that students can observe the influence of the mounting position on the infrared temperature sensor 3 and the thermocouple temperature sensor 4 conveniently, the outer wall of the water bath 1 is provided with a touch screen 10, the touch screen 10 is connected with the PLC 12, the PLC 12 arranges the temperature data after the infrared temperature sensor 3, the thermocouple temperature sensor 4 and the thermistor temperature sensor 5 detect the temperature, the temperature change curve is displayed on the touch screen 10, students can also set the temperature of the water bath 1 and the running speed of the electric push rod 6 by touching the touch screen 10 during training,
further, as shown in fig. 2-3, the electric heater 2 is connected to a voltage transmitter 21, a current transmitter 22 and a power adjusting module 23, the voltage transmitter 21 and the current transmitter 22 are connected to a digital input end of the PLC controller 12, and the power adjusting module 23 is connected to a digital output end of the PLC controller 12. In this embodiment, the PLC controller 12 is a SIEMENS 7-300PLC controller, and has a PID adjusting function, the voltage transmitter 21 and the current transmitter 22 collect the voltage and current change conditions of the electric heater 2, and the power adjusting module 23 performs PID adjustment on the electric heater 2 to ensure the heating rate and the heating temperature of the electric heater 2 to make the temperature of the water in the water bath 1 change uniformly in the heating process, so that the temperature remains unchanged after reaching a specified temperature, thereby reducing the influence of sudden change of the water temperature on the measurement result, and avoiding the damage to the safety of students caused by the sudden boiling of the heated water in the water bath 1.
Further, a sensor connecting hole 11 is formed in the lower end of the touch screen 10, and the sensor connecting hole 11 is connected with a digital quantity input end of the PLC 12 through an isolation transmitter 13. In the practical training process, students can plug in temperature sensors of different models through the sensor connecting holes 11, the practical training range of the temperature sensors is widened, the measuring current of the temperature sensors can change according to the temperature change in the measuring process, the isolation transmitter 13 is adopted to avoid the current change of the temperature sensors from damaging the PLC 12, and the fact that the wiring error of the students in the practical training process leads to the short circuit of the temperature sensors to burn the PLC 12 is avoided.
Further, 8 lateral walls of mounting panel even interval be provided with a plurality of connect the via hole 91, connect the via hole 91 and mount pad 9 fixed connection, thermocouple temperature sensor 4 sets up in mount pad 9. Thermocouple temperature sensor 4 has multiple different structures such as K, E, J, N, B, S, R, T, and the cold junction of all kinds of structures sets up the position difference, guarantees thermocouple temperature sensor 4 cold junction not influenced through adjusting mount pad 9, and thermocouple temperature sensor 4 can normal operating.
The working process of the utility model is as follows: a student sets a heating temperature through the touch screen 10, after the setting is finished, the PLC 12 starts the electric heater 2 to heat the water bath 1, the infrared temperature sensor 3, the thermocouple temperature sensor 4 and the thermistor temperature sensor 5 are positioned at fixed positions, the temperature in the water bath 1 is measured, a temperature change curve is displayed on the touch screen 10, the PLC 12 drives the electric heater 2 to maintain the temperature in the water bath 1 and simultaneously drives the electric push rod 6 to move at a constant speed after the set temperature is reached, the electric push rod 6 drives the infrared temperature sensor 3 and the thermocouple temperature sensor 4 to move downwards at a constant speed, the measurement result is changed, the measurement temperature change curve is displayed on the touch screen 10, practical training students can intuitively know the electric heating change of various temperature sensors and the influence of the installation position on the measurement result, the different characteristics of various temperature sensors can be conveniently understood, and the teaching effect is improved.
Finally, it is noted that the above preferred embodiments are merely illustrative of the technical solutions of the present invention and not restrictive, and although the present invention has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a real device of instructing of temperature sensor, characterized by: the device comprises a water bath, an electric heater, an infrared temperature sensor, a thermocouple temperature sensor, a thermistor temperature sensor, an electric push rod, a PLC (programmable logic controller) and a touch screen; the bottom of the water bath is provided with an electric heater, the inner wall of the water bath is vertically provided with thermistor temperature sensors at even intervals, the top surface of the water bath is provided with a hoisting support, the hoisting support is connected with the fixed end of an electric push rod, the movable end of the electric push rod is provided with a mounting plate, the mounting plate is provided with an infrared temperature sensor and a thermocouple temperature sensor, the outer wall of the water bath is provided with a touch screen, and a PLC (programmable logic controller) is connected with the electric heater, the infrared temperature sensor, the thermocouple temperature sensor, the thermistor temperature sensors and the touch screen.
2. The practical training device for the temperature sensor as claimed in claim 1, which is characterized in that: the electric heater is connected with the voltage transmitter, the current transmitter and the power adjusting module, the voltage transmitter and the current transmitter are connected with the digital input end of the PLC, and the power adjusting module is connected with the digital output end of the PLC.
3. The practical training device for the temperature sensor as claimed in claim 2, which is characterized in that: the lower end of the touch screen is provided with a sensor connecting hole, and the sensor connecting hole is connected with the digital quantity input end of the PLC through an isolation transmitter.
4. The practical training device for the temperature sensor as claimed in claim 1, which is characterized in that: the mounting panel lateral wall even interval be provided with a plurality of connect the via hole, connect the via hole and mount pad fixed connection, thermocouple temperature sensor sets up in the mount pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121611138.7U CN215495662U (en) | 2021-07-15 | 2021-07-15 | Temperature sensor training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121611138.7U CN215495662U (en) | 2021-07-15 | 2021-07-15 | Temperature sensor training device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215495662U true CN215495662U (en) | 2022-01-11 |
Family
ID=79727900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121611138.7U Expired - Fee Related CN215495662U (en) | 2021-07-15 | 2021-07-15 | Temperature sensor training device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215495662U (en) |
-
2021
- 2021-07-15 CN CN202121611138.7U patent/CN215495662U/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 |
Granted publication date: 20220111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |