CN113274517A - Self-adaptive magnetic field intensity non-magnetic ultraviolet disinfection system - Google Patents
Self-adaptive magnetic field intensity non-magnetic ultraviolet disinfection system Download PDFInfo
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- CN113274517A CN113274517A CN202110544429.7A CN202110544429A CN113274517A CN 113274517 A CN113274517 A CN 113274517A CN 202110544429 A CN202110544429 A CN 202110544429A CN 113274517 A CN113274517 A CN 113274517A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultra-violet radiation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultra-violet radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/11—Apparatus for controlling air treatment
- A61L2209/111—Sensor means, e.g. motion, brightness, scent, contaminant sensors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a magnetic field intensity adaptive non-magnetic ultraviolet disinfection system, which comprises a magnetic induction sensor, a magnetic field sensor and a magnetic control unit, wherein the magnetic induction sensor is used for detecting the intensity value of a magnetic field; the magnetic induction sensor detection circuit is used for detecting the magnetic field intensity and the magnetic field direction; the MCU sampling circuit is used for acquiring data of the magnetic induction sensor; the reminding device is connected with the MCU control circuit; the MCU control circuit is used for presetting a magnetic induction intensity base value, a magnetic induction intensity threshold value and disinfection time, receiving MCU sampling circuit data to read a current magnetic induction intensity value and open the ultraviolet lamp tube, judging whether a difference value between the current magnetic induction intensity value and the preset magnetic induction base value exceeds the magnetic induction threshold value, if so, extinguishing the ultraviolet lamp tube and triggering the reminding device to generate a prompt signal, otherwise, extinguishing the ultraviolet lamp tube after disinfection is finished in the preset disinfection time. The invention realizes the detection and judgment of the magnetic field strength in the magnetic resonance environment, ensures that the system can always work in a safe magnetic field strength environment, and avoids the abnormal damage phenomenon of the system.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a magnetic field intensity self-adaptive non-magnetic ultraviolet disinfection system.
Background
At present, the ultraviolet disinfection vehicle with magnetism is widely available in the market, or the magnetic resonance compatible nonmagnetic disinfection vehicle with a nonmagnetic material adopted as the machine body.
The machine body of the magnetic ultraviolet disinfection vehicle has strong magnetism and cannot be used in a magnetic resonance environment, the machine body of the magnetic ultraviolet disinfection vehicle adopts a non-magnetic disinfection vehicle without magnetic materials, and other circuit control boards, lamp tubes and the like are magnetic besides the machine body of the magnetic ultraviolet disinfection vehicle, when the magnetic disinfection vehicle is used in a magnetic resonance close range, a stronger variable magnetic field can appear around the magnetic resonance, and the variable magnetic field can cause electrons flowing through the range to deviate, so that the lamp tubes or ballasts of a disinfection vehicle system can be damaged, the magnetic field intensity of the magnetic resonance vehicle at different positions, different directions and different heights around the magnetic resonance environment is inconsistent, and the magnetic field intensity of the magnets of different manufacturers at the same position also has larger difference, so the current non-magnetic disinfection vehicle has larger difference for the adaptation distance of different magnets of manufacturers, damage to the system during use is a frequent occurrence.
Therefore, the adaptive magnetic field intensity non-magnetic ultraviolet disinfection system is provided, the adaptive non-magnetic disinfection vehicle can be used normally and safely in any magnetic resonance place, the detection and judgment of the magnetic field intensity in the magnetic resonance environment are realized, the system can be ensured to work in the safe magnetic field intensity environment all the time, and the abnormal damage phenomenon of the system is avoided.
Disclosure of Invention
The invention aims to provide a self-adaptive magnetic field intensity non-magnetic ultraviolet disinfection system to solve the problems that a lamp tube or a ballast is damaged due to overlarge surrounding magnetic field intensity and the lamp tube or the ballast cannot be used in a magnetic resonance environment.
In order to achieve the purpose, the invention provides the following technical scheme:
a self-adaptive magnetic field intensity non-magnetic ultraviolet disinfection system comprises a magnetic induction sensor, a magnetic sensor driving circuit and a magnetic control circuit, wherein the magnetic induction sensor is driven by the magnetic induction sensor driving circuit and is used for detecting a magnetic field intensity value;
the input end of the magnetic induction sensor detection circuit is connected with the output end of the magnetic induction sensor and is used for detecting the magnetic field intensity and the magnetic field direction;
the input end of the MCU sampling circuit is connected with the output end of the magnetic induction sensor detection circuit and is used for acquiring data of the magnetic induction sensor;
the reminding device is connected with the MCU control circuit;
the MCU control circuit is used for presetting a magnetic induction intensity base value, a magnetic induction intensity threshold value and disinfection time, receiving MCU sampling circuit data to read a current magnetic induction intensity value and open the ultraviolet lamp tube, judging whether a difference value between the current magnetic induction intensity value and the preset magnetic induction base value exceeds the magnetic induction threshold value, if so, extinguishing the ultraviolet lamp tube and triggering the reminding device to generate a prompt signal, otherwise, extinguishing the ultraviolet lamp tube after disinfection is finished in the preset disinfection time.
Further, reminding device includes loudspeaker and display screen, reminding device connects MCU control circuit.
Furthermore, the magnetic induction sensor detection circuit comprises a first-stage amplification circuit and a second-stage amplification circuit, wherein the input end of the first-stage amplification circuit is connected with the output end of the magnetic induction sensor, and the input end of the second-stage amplification circuit is connected with the output end of the first-stage amplification circuit.
Furthermore, the magnetic induction sensor detection circuit also comprises a buffer circuit, and the input end of the buffer circuit is connected with the output end of the secondary amplification circuit.
Furthermore, the magnetic induction sensor detection circuit also comprises a filter circuit, and the filter input end is connected with the output end of the buffer circuit.
The MCU control circuit controls the on-off of the power supply input of the ultraviolet lamp tube by controlling the MOS tube of the switch circuit to control the on-off of the ultraviolet lamp tube.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a magnetic field intensity self-adaptive non-magnetic ultraviolet disinfection system, which adopts a non-magnetic machine body design, and simultaneously adds magnetic field intensity detection in the system, when a magnetic induction detection sensor of the system detects that the magnetic field intensity at the current position is too large and possibly causes damage to a system lamp tube or a ballast, the system automatically cuts off an ultraviolet lamp tube control pin, closes the ultraviolet lamp tube, and simultaneously gives out sound and prompt information to remind a user that the magnetic field intensity at the position is too large and the system needs to be placed at a slightly distant position for use. The non-magnetic disinfection vehicle is suitable for normal and safe use in any magnetic resonance place, detection and judgment of magnetic field strength in a magnetic resonance environment are achieved, the system can work in a safe magnetic field strength environment all the time, and therefore the system can be used normally for a long time in different magnetic field environments, safety and reliability of the system in use in any magnetic field environment are guaranteed, and abnormal conditions such as lamp tube or ballast damage are avoided.
Drawings
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a block circuit diagram of the present invention;
FIG. 3 is a reference voltage circuit diagram of the present invention;
FIG. 4 is a circuit diagram of the present invention;
FIG. 5 is a circuit diagram of the magnetic induction sensor driving circuit of FIG. 4 according to the present invention;
FIG. 6 is a diagram of the magnetic induction sensor detection circuit of FIG. 4 according to the present invention;
FIG. 7 is a diagram of the buffer circuit of FIG. 4 according to the present invention;
FIG. 8 is a diagram of the filter circuit of FIG. 4 according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a magnetic field strength adaptive non-magnetic ultraviolet disinfection system, comprising: the magnetic induction sensor is driven by the magnetic induction sensor driving circuit and is used for detecting the magnetic field intensity value; the input end of the magnetic induction sensor detection circuit is connected with the output end of the magnetic induction sensor and is used for detecting the magnetic field intensity and the magnetic field direction; the input end of the MCU sampling circuit is connected with the output end of the magnetic induction sensor detection circuit and is used for acquiring data of the magnetic induction sensor; the reminding device is connected with the MCU control circuit; the MCU control circuit is used for presetting a magnetic induction intensity base value, a magnetic induction intensity threshold value and disinfection time, receiving MCU sampling circuit data to read a current magnetic induction intensity value and open the ultraviolet lamp tube, judging whether a difference value between the current magnetic induction intensity value and the preset magnetic induction base value exceeds the magnetic induction threshold value, if so, extinguishing the ultraviolet lamp tube and triggering the reminding device to generate a prompt signal, otherwise, extinguishing the ultraviolet lamp tube after disinfection is finished in the preset disinfection time. The magnetic induction sensor driving circuit drives the magnetic induction sensor to work, the magnetic field intensity value detected by the magnetic induction sensor is collected by the MCU sampling circuit through the magnetic induction sensor detection circuit, the magnetic field intensity ADC value at the current position can be calculated, when the system is started, the single-chip microcomputer MCU control circuit firstly reads a magnetic field intensity base value and a magnetic induction threshold value set by a user, the ultraviolet lamp tube is lighted after the manual switch is opened, the user starts disinfection, the MCU sampling circuit collects the magnetic induction sensor ADC value in real time, the MCU sampling circuit collects a voltage signal output by the magnetic induction sensor, calculates a real-time magnetic field intensity value, the system compares the current magnetic field intensity value with the set threshold value, when the difference between the current magnetic field intensity detection value and the set base value of the system is larger than the set threshold value, the system immediately closes the ultraviolet lamp tube, and sends prompt sound and displays fault information, otherwise, the ultraviolet lamp tube is turned off after the disinfection is finished within the preset disinfection time. The system of the invention can not generate abnormal conditions such as damage of the disinfection vehicle system when working under proper magnetic field intensity, when the system is far away from a strong magnetic position, the system can lighten the ultraviolet lamp again and count time again, the action of closing and extinguishing the ultraviolet lamp tube of the disinfection vehicle can be automatically controlled by self-adapting magnetic field intensity, and the abnormal conditions such as equipment damage can not be generated in the using process of the system while the market demand is met.
Further, reminding device includes loudspeaker and display screen, reminding device connects MCU control circuit. When the difference between the current magnetic field intensity detection value of the system and the set base value is larger than the set threshold value, the system immediately closes the lamp tube, the loudspeaker sends out prompt sound and the display screen displays fault information, the MCU control circuit of the system controls the on-off of the MOS tube through the IO pin of the MCU, the MCU control circuit is used for realizing the control of the ultraviolet lamp tube, meanwhile, the MCU control circuit is connected with the OLED display screen for displaying disinfection information, and information such as delay disinfection time, disinfection time length, error numbering and the like can be displayed.
Further, as shown in fig. 4 and 5, the magnetic induction sensor driving circuit includes an operational amplifier U8A and a hall sensor U10, the operational amplifier U8A is TLC2274IPWR, the hall sensor U10 is HG-106C, HG-106C is a gaas linear hall, HG-106C is commonly used for current detection and magnetic field detection, a first pin (output pin) of the operational amplifier is connected to a first pin (input pin) of the hall sensor, a third pin (input pin) of the operational amplifier is connected to an output terminal of the reference voltage circuit through a resistor R51, a third pin (input pin) of the operational amplifier is grounded through a resistor R52, a second pin (input pin) of the operational amplifier is grounded through a resistor R44, a voltage output pin (11 th pin) of the operational amplifier is grounded, a voltage input pin (4 th pin) of the operational amplifier is connected to a VCC terminal, a voltage input pin (a 4 th pin) of the operational amplifier is grounded after passing through a capacitor C40, a third pin (an input pin) of the Hall sensor is grounded after passing through a resistor R44, and a second pin and a fourth pin (an output pin) of the Hall sensor are connected with the input end of the detection circuit.
Further, as shown in fig. 4 and fig. 6, the magnetic induction sensor detection circuit includes a first-stage amplification circuit and a second-stage amplification circuit, the first-stage amplification circuit includes a first-stage amplifier (operational amplifier) U11, the second-stage amplification circuit includes a second-stage amplifier (operational amplifier) U9, both types of U11 and U9 are AD8221 arms z, a first pin of the first-stage amplifier U11 is connected to a second pin (output pin) of the hall sensor through a resistor R45, a fourth pin of the first-stage amplifier U11 is connected to a fourth pin (output pin) of the hall sensor through a resistor R50, a second pin of the first-stage amplifier U11 is connected to a third pin of the first-stage amplifier U11 through a resistor R49, a fifth pin of the first-stage amplifier U11 is connected to a-5V terminal, an eighth pin of the first-stage amplifier U11 is connected to a +5V terminal, a sixth pin of the first-stage amplifier U11 is connected to an output terminal of the reference voltage circuit, and a seventh pin of the first-stage amplifier U11 is connected to a fourth pin (input pin of the second-stage amplifier U9); the second pin of the secondary amplifier U9 is connected with the third pin of the secondary amplifier U9 through a resistor R48, the fifth pin of the secondary amplifier U9 is connected with a-5V end, the eighth pin of the secondary amplifier U9 is connected with a +5V end, the sixth pin of the secondary amplifier U9 is connected with the output end of the reference voltage circuit, the first pin of the secondary amplifier U9 is grounded through a capacitor C12, the first pin of the secondary amplifier U9 is connected with the MCU DAC end through a resistor R42, and the seventh pin of the secondary amplifier U9 is connected with the input end of the buffer circuit. The input signal of the magnetic induction sensor is applied to the integrated amplifier and provides a common mode signal to the input amplifiers, each amplifier is connected with an accurate feedback resistor to ensure the gain, then the differential voltage is converted into single-end voltage through the output amplifier, and the gain multiple of the integrated operational amplifier. Magnetic induction sensor passes through one-level amplifier circuit and puts a bigger voltage with magnetic field intensity value difference value, then through in second grade amplifier circuit through comparing with reference voltage, can judge the magnetic field intensity and the magnetic field direction of this position, behind second grade amplifier circuit, rethread buffering and filter circuit, input to MCU's sampling circuit in, the magnetic induction ADC value that the system sampled through MCU, can the accurate magnetic induction who calculates current position.
Further, as shown in fig. 4 and 7, the buffer circuit includes an operational amplifier U8D with a type TLC2274IPWR, an input terminal (12 th pin) of the operational amplifier U8D is connected to an output terminal (seventh pin) of the secondary amplifier U9, an input terminal (13 th pin) of the operational amplifier U8D is connected to an output terminal (14 th pin) of the operational amplifier U8D, and an output terminal (14 th pin) of the operational amplifier U8D is connected to an input terminal of the filter circuit through a resistor R46 and a resistor R47 in sequence. The buffer circuit reduces the switching loss of the device, absorbs and inhibits overvoltage in the switching process, and enhances the detection precision and accuracy of the system.
Further, as shown in fig. 4 and 8, the filter circuit includes an operational amplifier U8C, whose type is TLC2274IPWR, an input terminal (pin 10) of the operational amplifier U8C is connected to an output terminal of the operational amplifier U8D after passing through a resistor R47 and a resistor R46 in sequence, an input terminal (pin 10) of the operational amplifier U8C is grounded after passing through a capacitor C10, an input terminal (pin 9) of the operational amplifier U8C is connected to an output terminal (pin 8) of the operational amplifier U8C, a common connection point between the resistor R47 and the resistor R46 is connected to an output terminal (pin 8) of the operational amplifier U8C after passing through a capacitor C39, an output terminal (pin 8) of the operational amplifier U8C is connected to an output terminal of the MCU sampling circuit after passing through a resistor R43, one end of the capacitor C37 is grounded, the other end of the resistor R43 is connected to the output terminal, one end of the zener diode D5 is grounded, and the other end of the capacitor C37, and the zener diode D5 is an MMSZ3V 460 ET. The low-pass filter circuit can ensure the stability of the voltage value of the output magnetic induction sensor, filter the low-frequency noise signal and enhance the detection precision and accuracy of the system.
The MCU control circuit controls the on-off of the power supply input of the ultraviolet lamp tube by controlling the MOS tube of the switch circuit to control the on-off of the ultraviolet lamp tube. The system MCU control circuit controls the on-off of the MOS tube through the IO pin of the MCU control circuit, and is used for realizing the control of the ultraviolet lamp tube. And the magnetic field induction automatic switch ultraviolet lamp's prerequisite also must be at first the manual ignition ultraviolet lamp pipe just can, otherwise can not start the magnetic field induction function.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a no magnetism ultraviolet ray disinfection system of self-adaptation magnetic field intensity which characterized in that includes:
the magnetic induction sensor is driven by the magnetic induction sensor driving circuit and is used for detecting the magnetic field intensity value;
the input end of the magnetic induction sensor detection circuit is connected with the output end of the magnetic induction sensor and is used for detecting the magnetic field intensity and the magnetic field direction;
the input end of the MCU sampling circuit is connected with the output end of the magnetic induction sensor detection circuit and is used for acquiring data of the magnetic induction sensor;
the MCU control circuit is used for presetting a magnetic induction intensity base value, a magnetic induction intensity threshold value and disinfection time, receiving MCU sampling circuit data to read a current magnetic induction intensity value and open the ultraviolet lamp tube, judging whether a difference value between the current magnetic induction intensity value and the preset magnetic induction base value exceeds the magnetic induction threshold value, if so, extinguishing the ultraviolet lamp tube and triggering the reminding device to generate a prompt signal, otherwise, extinguishing the ultraviolet lamp tube after disinfection is finished in the preset disinfection time.
2. The adaptive magnetic field strength non-magnetic ultraviolet disinfection system of claim 1, wherein: the disinfection system also comprises a reminding device which is connected with the MCU control circuit.
3. The adaptive magnetic field strength non-magnetic ultraviolet disinfection system of claim 2, wherein: the reminding device comprises a loudspeaker and a display screen, and is connected with the MCU control circuit.
4. The adaptive magnetic field strength non-magnetic ultraviolet disinfection system of claim 2 or 3, wherein: the magnetic induction sensor detection circuit comprises a primary amplification circuit and a secondary amplification circuit, wherein the input end of the primary amplification circuit is connected with the output end of the magnetic induction sensor, and the input end of the secondary amplification circuit is connected with the output end of the primary amplification circuit.
5. The adaptive magnetic field strength non-magnetic ultraviolet disinfection system of claim 4, wherein: the magnetic induction sensor detection circuit further comprises a buffer circuit, and the input end of the buffer circuit is connected with the output end of the secondary amplification circuit.
6. The adaptive magnetic field strength non-magnetic ultraviolet disinfection system of claim 5, wherein: the magnetic induction sensor detection circuit further comprises a filter circuit, and the filter input end is connected with the output end of the buffer circuit.
7. The adaptive magnetic field strength non-magnetic ultraviolet disinfection system of claim 4, wherein: the MCU control circuit controls the on-off of the MOS tube of the switch circuit to cut off the power supply input of the ultraviolet lamp tube and control the on-off of the ultraviolet lamp tube.
8. The adaptive magnetic field strength non-magnetic ultraviolet disinfection system of claim 1, wherein: the magnetic induction sensor driving circuit comprises an operational amplifier and a Hall sensor, and the operational amplifier is connected with the Hall sensor.
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| CN202110544429.7A CN113274517B (en) | 2021-05-19 | 2021-05-19 | Non-magnetic ultraviolet disinfection system with self-adaptive magnetic field intensity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113893362A (en) * | 2021-10-27 | 2022-01-07 | 深圳瑞格泰科医疗科技有限公司 | Non-magnetic ultraviolet disinfection system capable of extending into magnetic resonance cavity and method thereof |
| CN114732922A (en) * | 2022-02-18 | 2022-07-12 | 深圳瑞格泰科医疗科技有限公司 | Non-magnetic ultraviolet disinfection system capable of detecting magnetic field deviation of lamp tube |
| CN114732922B (en) * | 2022-02-18 | 2024-05-03 | 深圳瑞格泰科医疗科技有限公司 | Nonmagnetic ultraviolet disinfection system capable of detecting magnetic field offset of lamp tube |
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| CN113893362B (en) * | 2021-10-27 | 2023-02-21 | 深圳瑞格泰科医疗科技有限公司 | Non-magnetic ultraviolet disinfection system capable of extending into magnetic resonance cavity and method thereof |
| CN114732922A (en) * | 2022-02-18 | 2022-07-12 | 深圳瑞格泰科医疗科技有限公司 | Non-magnetic ultraviolet disinfection system capable of detecting magnetic field deviation of lamp tube |
| CN114732922B (en) * | 2022-02-18 | 2024-05-03 | 深圳瑞格泰科医疗科技有限公司 | Nonmagnetic ultraviolet disinfection system capable of detecting magnetic field offset of lamp tube |
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