CN109765449B - Device for electromagnetic compatibility radiation immunity test of electronic thermometer - Google Patents
Device for electromagnetic compatibility radiation immunity test of electronic thermometer Download PDFInfo
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- CN109765449B CN109765449B CN201910130154.5A CN201910130154A CN109765449B CN 109765449 B CN109765449 B CN 109765449B CN 201910130154 A CN201910130154 A CN 201910130154A CN 109765449 B CN109765449 B CN 109765449B
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 230000036039 immunity Effects 0.000 title claims abstract description 46
- 230000005855 radiation Effects 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000004806 packaging method and process Methods 0.000 claims abstract description 13
- 230000001276 controlling effect Effects 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 abstract description 6
- 230000005672 electromagnetic field Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Abstract
The invention relates to the technical field of electromagnetic compatibility testing and discloses a device for electromagnetic compatibility radiation immunity test of an electronic thermometer, which comprises a packaging shell and an internal structure, wherein a device power port, a water tank water exchange port and a heat pipe outlet are arranged on the packaging shell, the internal structure comprises a control module, a hot water tank, an input module for regulating and controlling the heating highest temperature of the hot water tank, an output module for displaying the real-time temperature of the hot water tank, and the hot water tank, the input module and the output module are all electrically connected with the control module. The device for electromagnetic compatibility radiation immunity test of the electronic thermometer can monitor and display in real time, has stable rising speed, and has the advantages of safe use, convenient operation and the like.
Description
Technical Field
The invention relates to the technical field of electromagnetic compatibility testing, in particular to a device for an electromagnetic compatibility radiation immunity test of an electronic thermometer.
Background
With the development of science and technology, electronic technology gradually develops to aspects of high frequency, high speed, high precision, high reliability, high sensitivity, high integration and the like, and the problem of electromagnetic compatibility of electric and electronic equipment is increasingly prominent, and is highly valued by governments of various countries, and more electromagnetic compatibility instructions, specifications and standards are gradually brought out and forced execution is required. Electromagnetic compatibility refers to the ability of a device or system to operate satisfactorily in its electromagnetic environment without intolerable electromagnetic interference to any device in its environment. Thus, electromagnetic compatibility includes two requirements: on one hand, electromagnetic interference generated by equipment on the environment in the normal operation process cannot exceed a certain limit value; on the other hand, the device has a certain degree of immunity, namely electromagnetic sensitivity, to electromagnetic interference existing in the environment.
In the electromagnetic compatibility test, the electromagnetic sensitivity of the equipment is evaluated by an immunity test, the main method of the immunity test is to select proper severity level according to the electromagnetic environment condition of the equipment and the measures taken by a user on the equipment, test according to the related test method, and finally evaluate whether the test result is qualified according to the qualification judgment condition proposed by the product standard. This is where immunity testing differs from other tests primarily, whereas radio frequency electromagnetic field radiation immunity testing is an essential one of the electromagnetic compatibility immunity tests. Most electronic equipment is subject to electromagnetic radiation in certain situations, such as small hand-held transceivers for operation, maintenance and security personnel, fixed radio broadcasts, transmitters for television stations, vehicle radio transmitters, and various industrial electromagnetic sources, which are frequently generated by these conventional use transmitters. The test of the radiation immunity of the radio frequency electromagnetic field is to test the immunity of the equipment to electromagnetic radiation disturbance when the equipment is in the radio frequency electromagnetic field of the required frequency range and test grade.
In the radio frequency electromagnetic field radiation immunity test, whether the test result is qualified or not is evaluated according to the accuracy or error range of technical indexes in the technical requirements of products. For products such as electronic thermometers, the technical index is the accuracy of the measured temperature. At present, in the radio frequency electromagnetic field radiation immunity test of the anechoic chamber, the continuous work of the electronic thermometer is difficult to ensure, and the working condition and the measurement accuracy of the electronic thermometer cannot be observed in the whole radio frequency electromagnetic field radiation immunity test, which is not beneficial to judging the test result. On the one hand, the general working display temperature range of the electronic thermometer is 32-43 ℃, when the temperature exceeds the range, the real-time temperature cannot be displayed, low or high is displayed, the electronic thermometer is started to measure the temperature, if the temperature measured by the electronic thermometer is constant for a maximum period of time, the time is generally 15-20 s, and then the electronic thermometer is automatically turned off; on the other hand, the radio-frequency electromagnetic field radiation immunity test of the electronic thermometer is carried out in an anechoic chamber with the grade of 3V/m, and a test staff cannot be exposed in the anechoic chamber to operate the electronic thermometer.
Disclosure of Invention
The invention aims to overcome at least one defect of the prior art, and provides a device for electromagnetic compatibility radiation immunity test of an electronic thermometer, wherein the test temperature of the device can be monitored and displayed in real time, the rising speed is stable, and the device has the advantages of safe use, convenient operation and the like.
The technical scheme adopted by the invention is as follows:
the utility model provides a device for electronic clinical thermometer electromagnetic compatibility radiation immunity test, includes encapsulation shell and inner structure, be equipped with device power port, water tank mouth of a river, heat pipe export on the encapsulation shell, inner structure includes control module, hot-water tank, is used for regulating and controlling the input module of hot-water tank heating maximum temperature, is used for showing the output module of hot-water tank real-time temperature hot-water tank, input module, output module all are connected with the control module electricity.
The device for electromagnetic compatibility radiation immunity test of the electronic thermometer adopts the packaging shell to package the internal structure, is safe to use and attractive in appearance, the power supply port of the device supplies power to the device, the water body can be replaced by the water tank water exchange port, the water temperature is quickly reduced, the device is convenient to measure for multiple times, the outlet of the heat pipe is matched with the electronic thermometer, the heat pipe can provide continuous rising temperature for the electronic thermometer, in the internal structure, the input module is connected with the control module, the heating highest temperature of the hot water tank can be regulated and controlled, the output module is connected with the control module, and the real-time temperature of the hot water tank can be displayed.
Preferably, the device further comprises a switch for controlling the device, the switch is electrically connected with the control module, and the packaging shell is provided with an opening for installing the switch. The switch is used for controlling the starting and stopping of the heating function of the hot water tank. Further, the switch is a start button, and the test can be started or interrupted by one button.
Preferably, the device further comprises a power supply module for converting the voltage of the power supply port of the device. The power module may convert an AC input voltage of a device power port to a lower DC voltage output, and in particular, the power module is an AC/DC switching power supply.
Preferably, the input module is a temperature selection knob. The temperature selection knob is used for controlling the highest temperature of the heating of the hot water tank, the highest temperatures of different gears can be selected, and an operator can select the required gear during experiments.
Preferably, the output module is an LED display screen, and an opening for installing the LED display screen is formed in the packaging shell. The LED display screen is used for displaying the real-time temperature of the water tank.
Preferably, a heating wire, a temperature sensor and a heat pipe are arranged in the hot water tank, a water changing hole is formed in the shell of the hot water tank, one end of the heat pipe is positioned in the hot water tank, the other end of the heat pipe is positioned outside the shell of the hot water tank, and an interface matched with a probe of the electronic thermometer is arranged at the end of the heat pipe positioned outside the shell. The hot water tank is heated by the heating wire to raise the temperature, and continuously raised temperature is provided for the electronic thermometer by the excellent heat conductivity of the heat pipe; the control module monitors the temperature of the hot water tank in real time through the temperature sensor and controls the rising speed of the temperature. The interface is matched with the probe of the electronic thermometer, and the probe of the electronic thermometer can be inserted into the interface to ensure that the electronic thermometer is well contacted with the heat pipe. Specifically, in the practical experiment process, the heating device steps 0.1 ℃ from 32-43 ℃ every 10s, the whole heating process is completed for 18min, the radio frequency electromagnetic field radiation immunity is in the frequency range of 80-2500 MHz, the single antenna polarity test is 14-15 min, and the electronic thermometer can continuously display the temperature in the whole radio frequency electromagnetic field radiation immunity process.
Preferably, the device for electromagnetic compatibility radiation immunity test of the electronic thermometer further comprises a driving module for driving the output module to display real-time temperature of the hot water tank. Specifically, the driving module is a driving circuit.
Preferably, the water changing hole of the hot water tank is connected with the water changing hole of the water tank.
Preferably, the control module is a single-chip microcomputer. The single chip microcomputer controls the temperature of the hot water tank to continuously rise, and the electronic thermometer continuously works through the good heat conduction characteristic of the heat pipe.
Preferably, the power port of the device is directly externally connected with a stabilized voltage power supply.
Compared with the prior art, the invention has the beneficial effects that:
(1) Through the device for the electromagnetic compatibility radiation immunity test of the electronic thermometer, disclosed by the invention, a user can perform the radio frequency electromagnetic field radiation immunity test within a certain temperature range according to the test requirement of a product, the electronic thermometer can continuously work, the requirements of radio frequency electromagnetic field radiation immunity test and monitoring can be met, the difficulty that the electronic thermometer keeps continuously working in the radio frequency electromagnetic field radiation immunity test is solved, the user can observe the working condition of the electronic thermometer in the whole radio frequency electromagnetic field radiation immunity test, and the auxiliary observation and judgment of test results are facilitated;
(2) The device for electromagnetic compatibility radiation immunity test of the electronic thermometer can provide the test temperature which can be monitored by the electronic thermometer, monitor and display in real time, and strictly meet the standard requirements;
(3) The device for electromagnetic compatibility radiation immunity test of the electronic thermometer is safe to use, convenient to operate, stable in performance, capable of being used continuously and long in service life;
(4) The device for electromagnetic compatibility radiation immunity test of the electronic thermometer is beneficial to optimizing the repeatability and traceability of the electromagnetic compatibility radiation immunity test of the electronic thermometer in the radio frequency electromagnetic field, is beneficial to unification of the medical instrument supervision sampling test method in the future, ensures the effectiveness of medical product supervision, and effectively ensures the mechanical safety of masses.
Drawings
Fig. 1 is a block diagram of an external port structure of an apparatus for electromagnetic compatibility radiation immunity test of an electronic thermometer according to an embodiment.
Fig. 2 is a schematic block diagram of an internal circuit of an apparatus for electromagnetic compatibility radiation immunity testing of an electronic thermometer according to an embodiment.
Description of the drawings: 1. a device power port; 2. a water tank water exchanging port; 3. a heat pipe outlet; 4. a package housing; 5. a control module; 6. a hot water tank; 7. a temperature selection knob; 8. an LED display screen; 9. a switch; 10. an AC/DC switching power supply; 11. a heating wire; 12. a temperature sensor; 13. a heat pipe; 14. changing water holes; 15. an interface; 16. a driving circuit; 17. an electronic thermometer, 18, a port.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the invention. For better illustration of the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Examples
As shown in fig. 1, the embodiment discloses a device for electromagnetic compatibility radiation immunity test of an electronic thermometer, which comprises a packaging shell 4 and an internal structure, wherein a device power port 1, a water tank water exchange port 2 and a heat pipe outlet 3 are arranged on the packaging shell 4, the internal structure comprises a control module 5, a hot water tank 6, an input module for regulating and controlling the heating highest temperature of the hot water tank, an output module for displaying the real-time temperature of the hot water tank, and the hot water tank 6, the input module and the output module are all electrically connected with the control module. Specifically, in this embodiment, the input module is a temperature selection knob 7, the output module is an LED display screen 8, an opening for installing the LED display screen 8 is formed in the packaging shell, and the control module 5 is a single-chip microcomputer.
The device for electromagnetic compatibility radiation immunity test of the electronic thermometer adopts the packaging shell 4 to package the internal structure, is safe to use and attractive in appearance, the device power port 1 supplies power to the device, the water tank water exchange port 2 can exchange water, the water temperature is quickly reduced, continuous repeated measurement is convenient, the heat pipe outlet 3 is used for being matched with the electronic thermometer, the heat pipe can provide continuous rising temperature for the electronic thermometer, in the internal structure, the temperature selection knob 7 is connected with the singlechip and is used for controlling the highest temperature of heating of the hot water tank 6, the highest temperatures of different gears can be selected, and an operator can select the required gear during the test; the LED display screen 8 is connected with the singlechip and used for displaying the real-time temperature of the hot water tank 6.
Further, in this embodiment, the device further includes a switch 9 for controlling the device, the switch 9 is electrically connected to the control module 5, and the package housing 4 is provided with an opening for installing the switch 9. The switch 9 is used for controlling the starting and stopping of the heating function of the hot water tank 6. Specifically, the switch 9 in this embodiment is a start button, and may start or interrupt the test by one button.
Further, in this embodiment, the apparatus further includes a power module for converting a voltage of a power port of the apparatus. The power module, which is specifically the AC/DC switching power supply 10, can convert the AC input voltage of the device power port to a lower DC voltage output.
Further, in this embodiment, the hot water tank 6 is provided with the heating wire 11, the temperature sensor 12 and the heat pipe 13, the housing of the hot water tank 6 is provided with the water changing hole 14, one end of the heat pipe 13 is located in the hot water tank 6, the other end is located outside the housing of the hot water tank, and the end of the heat pipe located outside the housing is provided with the interface 15 matched with the probe of the electronic thermometer. The hot water tank 6 is heated by the heating wire 11 to raise the temperature, and the electronic thermometer is provided with continuously raised temperature by the excellent heat conductivity of the heat pipe 13; the control module 5 monitors the temperature of the hot water tank 6 in real time through the temperature sensor 12 and controls the rising speed of the temperature. The interface 15 is matched with the probe of the electronic thermometer, and when in test, the probe of the electronic thermometer 17 is inserted into the interface 15 of the heat pipe 13, so that the electronic thermometer can be well contacted with the heat pipe 13. Specifically, in the practical experiment process, the heating device steps 0.1 ℃ from 32-43 ℃ every 10s, the whole heating process is completed for 18min, the radio frequency electromagnetic field radiation immunity is in the frequency range of 80-2500 MHz, the single antenna polarity test is 14-15 min, and the electronic thermometer can continuously display the temperature in the whole radio frequency electromagnetic field radiation immunity process.
Further, in this embodiment, the device for electromagnetic compatibility radiation immunity test of an electronic thermometer further includes a driving module for driving the output module to display real-time temperature of the hot water tank. Specifically, the driving module is a driving circuit 16.
Further, in this embodiment, the water exchanging hole of the hot water tank is connected to the water exchanging hole of the water tank.
The power port of the device is directly externally connected with a stabilized voltage supply.
Further, in this embodiment, ports 18 for connection are provided between the AC/DC switching power supply 10 and the control module 5, between the control module 5 and the driving circuit 16, between the control module 5 and the temperature selecting knob 7, between the control module 5 and the switch 9, and between the control module 5 and the hot water tank 6.
It should be understood that the foregoing examples of the present invention are merely illustrative of the present invention and are not intended to limit the present invention to the specific embodiments thereof. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principle of the claims of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The device for electromagnetic compatibility radiation immunity test of the electronic thermometer is characterized by comprising a packaging shell (4) and an internal structure, wherein a device power port (1), a water tank water exchange port (2) and a heat pipe outlet (3) are arranged on the packaging shell (4), the internal structure comprises a control module (5), a hot water tank (6), an input module for regulating and controlling the heating highest temperature of the hot water tank (6), an output module for displaying the real-time temperature of the hot water tank (6), and the hot water tank (6), the input module and the output module are all electrically connected with the control module (5);
the device also comprises a switch (9) for controlling the device, the switch (9) is electrically connected with the control module (5), and an opening for installing the switch (9) is formed in the packaging shell (4);
the hot water tank (6) is internally provided with a heating wire (11), a temperature sensor (12) and a heat pipe (13), a shell of the hot water tank (6) is provided with a water changing hole (14), one end of the heat pipe (13) is positioned in the hot water tank (6), the other end of the heat pipe is positioned outside the shell of the hot water tank (6), and an interface (15) matched with a probe of the electronic thermometer is arranged at the end of the heat pipe positioned outside the shell;
and the water changing hole of the hot water tank (6) is connected with the water changing hole of the water tank.
2. The device for electromagnetic compatibility radiation immunity testing of electronic thermometers according to claim 1, characterized in that the device further comprises a power supply module for converting the voltage of the device power supply port (1).
3. The device for electromagnetic compatibility radiation immunity test of electronic thermometers according to claim 1, characterized in that said input module is a temperature selection knob (7).
4. The device for electromagnetic compatibility radiation immunity test of electronic clinical thermometers according to claim 1, wherein the output module is an LED display screen (8), and the packaging shell (4) is provided with an opening for installing the LED display screen (8).
5. The apparatus for electromagnetic compatibility radiation immunity test of electronic clinical thermometers according to claim 1, characterized in that the apparatus for electromagnetic compatibility radiation immunity test of electronic clinical thermometers further comprises a driving module for driving the output module to display the real-time temperature of the hot water tank (6).
6. The device for electromagnetic compatibility radiation immunity test of electronic clinical thermometers according to claim 1, characterized in that the control module (5) is a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130154.5A CN109765449B (en) | 2019-02-21 | 2019-02-21 | Device for electromagnetic compatibility radiation immunity test of electronic thermometer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130154.5A CN109765449B (en) | 2019-02-21 | 2019-02-21 | Device for electromagnetic compatibility radiation immunity test of electronic thermometer |
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| Publication Number | Publication Date |
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| CN109765449A CN109765449A (en) | 2019-05-17 |
| CN109765449B true CN109765449B (en) | 2023-12-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405473A (en) * | 2016-08-29 | 2017-02-15 | 中国电力科学研究院 | Radiation immunity electromagnetic compatibility test system applicable to high voltage metering equipment and radiation immunity electromagnetic compatibility test method |
| CN206002608U (en) * | 2016-08-29 | 2017-03-08 | 中国电力科学研究院 | A kind of radiation immunity electromagnetic compatibility test system being applied to high pressure dosing apparatus |
| CN108024711A (en) * | 2015-04-01 | 2018-05-11 | 曼特瑞斯医药有限责任公司 | Cold treatment, thermotherapy, temperature adjustment treatment and its probe unit |
| CN108919019A (en) * | 2018-09-28 | 2018-11-30 | 国网辽宁省电力有限公司电力科学研究院 | A kind of Application of Power Metering Instruments electromagnetic compatibility test system |
| CN209707615U (en) * | 2019-02-21 | 2019-11-29 | 广东省医疗器械质量监督检验所 | A kind of device for electronic thermometer electromagnetic compatibility radiation immunity experiment |
-
2019
- 2019-02-21 CN CN201910130154.5A patent/CN109765449B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108024711A (en) * | 2015-04-01 | 2018-05-11 | 曼特瑞斯医药有限责任公司 | Cold treatment, thermotherapy, temperature adjustment treatment and its probe unit |
| CN106405473A (en) * | 2016-08-29 | 2017-02-15 | 中国电力科学研究院 | Radiation immunity electromagnetic compatibility test system applicable to high voltage metering equipment and radiation immunity electromagnetic compatibility test method |
| CN206002608U (en) * | 2016-08-29 | 2017-03-08 | 中国电力科学研究院 | A kind of radiation immunity electromagnetic compatibility test system being applied to high pressure dosing apparatus |
| CN108919019A (en) * | 2018-09-28 | 2018-11-30 | 国网辽宁省电力有限公司电力科学研究院 | A kind of Application of Power Metering Instruments electromagnetic compatibility test system |
| CN209707615U (en) * | 2019-02-21 | 2019-11-29 | 广东省医疗器械质量监督检验所 | A kind of device for electronic thermometer electromagnetic compatibility radiation immunity experiment |
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