CN-224216195-U - Temperature sensor response speed measuring device

Abstract

The utility model provides a temperature sensor response speed measuring device which comprises a first fluid passage, a second fluid passage, a temperature thermocouple, a high-frequency sampler and a temperature measuring point switching assembly, wherein the first fluid passage and the second fluid passage are respectively communicated with different fluid heat sources with temperature differences, the temperature measuring point switching assembly comprises a first cavity, a second cavity, a switching mechanism and an isolation structure, the first cavity and the second cavity are respectively communicated with the first fluid passage and the second fluid passage, a connecting hole is arranged between the first cavity and the second cavity in an isolated mode, the temperature thermocouple is arranged at the action end of the switching mechanism, the switching mechanism drives the temperature thermocouple to switch between the first cavity and the second cavity through the connecting hole, the isolation mechanism moves along with the switching mechanism and is used for sealing the connecting hole when the switching mechanism stops, and the high-frequency sampler is used for collecting temperature signals for the temperature thermocouple at high frequency. The device can be used for rapidly detecting the response speed of the temperature sensor.

Inventors

• SHI ZHANDONG
• WU TINGTING
• LI DONG
• HE CHEN
• CHEN CHEN
• NIU JIAJIA
• YE CHANGWEN
• YANG GUOTAO
• YU QIANYUAN
• MIAO QIAN
• YANG RONGCHAO
• ZENG BO
• ZHANG PENGFEI
• NING YINGHAO
• TIAN CONGCONG
• ZHANG QING

Assignees

• 中国烟草总公司郑州烟草研究院

Dates

Publication Date

20260508

Application Date

20250520

Claims (10)

1. 1. The temperature sensor response speed measuring device is characterized by comprising a first fluid passage, a second fluid passage, a temperature thermocouple, a high-frequency sampler and a temperature measuring point switching assembly; the first fluid passage and the second fluid passage are respectively communicated with different fluid heat sources with temperature differences; The temperature measurement point switching assembly comprises a first cavity, a second cavity, a switching mechanism and an isolation structure, wherein the first cavity and the second cavity are respectively communicated with a first fluid passage and a second fluid passage, and the first cavity and the second cavity are isolated from each other and are provided with a connecting hole; The temperature thermocouple is arranged at the action end of the switching mechanism, the switching mechanism drives the temperature thermocouple to switch between the first cavity and the second cavity through the connecting hole, and the isolation mechanism moves along with the switching mechanism and is used for sealing the connecting hole when the switching mechanism stops; The high-frequency sampler is used for collecting temperature signals from the temperature thermocouple at high frequency.
2. 2. The device for measuring the response speed of the temperature sensor according to claim 1, wherein the switching mechanism comprises a linear motion rod driven by an electric cylinder or an air cylinder or a linear motor or an electric screw mechanism, the temperature thermocouple is mounted on the linear motion rod, and a travel start point and a travel end point of the temperature thermocouple are respectively positioned in the first cavity and the second cavity.
3. 3. The device for measuring the response speed of a temperature sensor according to claim 1 or 2, wherein the specifications of the respective constituent elements constituting the passages in the first fluid passage and the second fluid passage are the same.
4. 4. The device for measuring response speed of temperature sensor according to claim 1, wherein the heat sources of the first fluid passage and the second fluid passage are each a single heat source, and the single heat source is a gaseous fluid or a liquid fluid.
5. 5. The device for measuring response speed of temperature sensor according to claim 1, wherein the heat sources of the first fluid path and the second fluid path comprise a dual heat source selectively conducted by a control valve, and the dual heat source comprises a gaseous fluid and a liquid fluid.
6. 6. The device for measuring response speed of a temperature sensor according to claim 4 or 5, wherein the heat source of the gaseous fluid is an aerosol generating device.
7. 7. The device for measuring response speed of a temperature sensor according to claim 4 or 5, wherein the heat source of the liquid fluid is a standard liquid.
8. 8. The device for measuring response speed of a temperature sensor according to claim 4 or 5, wherein the heat source further comprises first and second heating means provided on the first and second fluid passages, respectively, for heating the first and second fluid passages, respectively, to form a temperature difference.
9. 9. The device for measuring response speed of temperature sensor according to claim 4 or 5, wherein the first fluid passage and the second fluid passage are further provided with flow control means, respectively.
10. 10. The device for measuring response speed of temperature sensor according to claim 1, wherein the outlet ends of the first fluid passage and the second fluid passage are provided with negative pressure fans.

Description

Temperature sensor response speed measuring device Technical Field The utility model relates to the technical field of sensor detection, in particular to a temperature sensor response speed measuring device. Background With the continuous innovation and development of the tobacco industry, heating cigarettes is becoming one of the focus of consumer attention. Heating cigarettes has significant advantages over traditional cigarettes in terms of reducing emissions of harmful substances, providing a healthier smoking experience. The temperature indexes such as the flue gas temperature, the heating appliance temperature and the like become important indexes of the heating cigarette products in the research and development and quality inspection processes, and it is important to ensure the accuracy and reliability of the detection results of the corresponding indexes. Therefore, the control of the temperature in the production process of heating cigarettes is particularly important. In the field of temperature sensor measurement, especially for thermocouple temperature sensors, response speed is a key performance indicator. When the temperature of fluid with quick temperature change is measured by the traditional temperature sensor, the measured temperature cannot be reacted immediately, a certain change time is needed to reach a thermal equilibrium state, the temperature change cannot be consistent with the flowing state of the fluid, and the normal requirements of other detection activities are affected. Under the influence of the above reasons, the industry has set forth a demand for the response speed of the temperature sensor, and thus a demand for measuring the response speed of the temperature sensor has arisen, and the measuring device is required to be able to determine whether the purchased response speed of the temperature sensor meets the standards. In order to solve the above problems, an ideal technical solution is always sought. Disclosure of utility model The utility model aims at overcoming the defects of the prior art, and provides a temperature sensor response speed measuring device capable of realizing rapid measurement of the response speed of a temperature sensor. In order to achieve the aim, the utility model adopts the technical scheme that the temperature sensor response speed measuring device comprises a first fluid passage, a second fluid passage, a temperature thermocouple, a high-frequency sampler and a temperature measuring point switching assembly; the first fluid passage and the second fluid passage are respectively communicated with different fluid heat sources with temperature differences; The temperature measurement point switching assembly comprises a first cavity, a second cavity, a switching mechanism and an isolation structure, wherein the first cavity and the second cavity are respectively communicated with a first fluid passage and a second fluid passage, and the first cavity and the second cavity are isolated from each other and are provided with a connecting hole; The temperature thermocouple is arranged at the action end of the switching mechanism, the switching mechanism drives the temperature thermocouple to switch between the first cavity and the second cavity through the connecting hole, and the isolation mechanism moves along with the switching mechanism and is used for sealing the connecting hole when the switching mechanism stops; The high-frequency sampler is used for collecting temperature signals from the temperature thermocouple at high frequency. Based on the above, the switching mechanism comprises a linear motion rod piece driven by an electric cylinder or an air cylinder or a linear motor or an electric screw rod mechanism, the temperature thermocouple is installed on the linear motion rod piece, and a travel starting point and a travel end point of the temperature thermocouple are respectively located in the first cavity and the second cavity. The specifications of the respective constituent elements constituting the passages in the first fluid passage and the second fluid passage are the same as described above. The heat sources of the first fluid passage and the second fluid passage are single heat sources, and the single heat sources are gaseous fluid or liquid fluid. The heat sources of the first fluid passage and the second fluid passage comprise dual heat sources which can be alternatively conducted through a control valve, and the dual heat sources comprise gaseous fluid and liquid fluid. The above, the heat source of the gaseous fluid is an aerosol generating device. The heat source of the liquid fluid is standard liquid. The heat source further comprises a first heating device and a second heating device which are respectively arranged on the first fluid passage and the second fluid passage and are used for respectively heating the first fluid passage and the second fluid passage to form a temperature difference. The first fluid passage and the