WO2024076025A1 - Dispositif de mesure de température maximale - Google Patents

Dispositif de mesure de température maximale Download PDF

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Publication number
WO2024076025A1
WO2024076025A1 PCT/KR2023/013713 KR2023013713W WO2024076025A1 WO 2024076025 A1 WO2024076025 A1 WO 2024076025A1 KR 2023013713 W KR2023013713 W KR 2023013713W WO 2024076025 A1 WO2024076025 A1 WO 2024076025A1
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Prior art keywords
maximum temperature
temperature
output
temperature sensors
voltage
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PCT/KR2023/013713
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English (en)
Korean (ko)
Inventor
홍진영
이동준
강우정
김종현
Original Assignee
주식회사 필드큐어
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Priority claimed from KR1020230050459A external-priority patent/KR20240049134A/ko
Application filed by 주식회사 필드큐어 filed Critical 주식회사 필드큐어
Publication of WO2024076025A1 publication Critical patent/WO2024076025A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/40—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
    • G01D1/12—Measuring arrangements giving results other than momentary value of variable, of general application giving a maximum or minimum of a value
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor

Definitions

  • the present invention relates to a maximum temperature measurement device, and more specifically, to a maximum temperature measurement device that can minimize errors and noise in maximum temperature measurement.
  • TFields Tumor Treating Fields is a proven cancer treatment that has obtained FDA approval for relapsed glioblastoma and newly diagnosed glioblastoma.
  • An electric field tumor treatment system for delivering a therapeutic electric field to a target area of an object consists of a generator (alternating current signal generator), a distributor, and a plurality of electrode pads.
  • each electrode pad consists of a plurality of electrode elements attached to the surface of an object.
  • a typical electrode pad for a brain tumor (Glioblastoma) consists of 9 capacitively coupled individual electrodes in a 3X3 matrix structure, and a temperature sensor can be added to each individual electrode to measure the temperature between the electrode and the skin.
  • the generator is connected to two pairs of electrode pads to cover two mutually orthogonal directions through a distributor.
  • the distributor connects the first electrode pad pair to flow current for a certain period of time, and then selects the second electrode pad pair to flow current for a certain period of time.
  • the current generated from the generator is connected to the selected pair of electrode pads through a distributor, and is connected to the electrodes of the first electrode pad, the skin and body of the subject to which the electrode is attached, the skin of the subject to which the electrode of the second electrode pad is attached, the The current flows along the current path created by the electrodes of the second electrode pad.
  • a therapeutic electric field of a certain intensity or more is delivered to the target area of cancer cells, and this therapeutic electric field destroys cancer cells by interfering with or delaying the division of dividing cancer cells.
  • the current flowing between the electrode and the skin generates heat, and it is necessary to measure the temperature from an added temperature sensor to prevent skin burns due to this heat.
  • the measured value of each temperature sensor exceeds a certain temperature (e.g. 41 degrees)
  • the system is paused or the intensity of the current is controlled by changing the current wave form to avoid the risk of the subject being burned. Optimization methods are presented.
  • the interface cable between the electrode pad and the distributor is very complex, consisting of a conductor for a current path, an analog signal line for outputting temperature measurement values to a generator, and additional lines for a temperature measurement circuit.
  • a conductor for a current path an analog signal line for outputting temperature measurement values to a generator
  • additional lines for a temperature measurement circuit As an alternating current of hundreds of kHz or more than 1A flows, a change in the magnetic field occurs around the conductor for the current path, and this change causes unnecessary interference in the temperature analog output line, which can cause problems with accurate temperature measurement.
  • numerous wires are needed, including a current path to flow current to each individual electrode, a power line for a temperature measurement circuit to measure the temperature between the electrode and the skin, and an analog signal line to send the temperature measurement value.
  • the purpose of the present invention to solve the above problems is to provide a maximum temperature measurement device that can minimize errors and noise in maximum temperature measurement.
  • a maximum temperature measuring device to solve the above problem includes a plurality of temperature sensors; and a maximum temperature output unit that receives output from each of the plurality of temperature sensors and outputs the maximum temperature among the temperatures measured by the plurality of temperature sensors.
  • the maximum temperature output unit may measure the voltage at a predetermined first position where the outputs of each of the plurality of temperature sensors are connected and output the maximum temperature.
  • it may further include a conversion unit that receives the results of the maximum temperature output unit and converts them into digital data.
  • the converter may provide the result of the maximum temperature output unit converted into digital data using power line communication and may perform full-wave rectification.
  • the maximum temperature output unit measures the voltage at the first position where the outputs of each of the plurality of temperature sensors are connected. , the voltage output at the lowest voltage may be used to output at the maximum temperature.
  • the maximum temperature output unit measures the voltage at the first position where the outputs of each of the plurality of temperature sensors are connected. , the voltage output at the highest voltage may be used to output the maximum temperature.
  • each of the plurality of temperature sensors may be disposed on each of a plurality of electrodes constituting an electrode array for transmitting a treatment electric field.
  • a maximum temperature measuring device for solving the above problems includes a plurality of temperature sensors; a maximum temperature output unit that receives output from each of the plurality of temperature sensors and outputs a maximum temperature among the temperatures measured by the plurality of temperature sensors; and a maximum temperature sensor position output unit that receives the output of each of the plurality of temperature sensors and outputs the position of the temperature sensor outputting the maximum temperature among the plurality of temperature sensors.
  • the maximum temperature output unit may measure the voltage at a predetermined first position where the outputs of each of the plurality of temperature sensors are connected and output the maximum temperature.
  • the maximum temperature sensor position output unit measures the voltage at each predetermined second position with respect to the output of each of the plurality of temperature sensors, compares the measured voltages, and outputs the maximum temperature. It may be output.
  • it may further include a conversion unit that receives the results of the maximum temperature output unit and the maximum temperature sensor position output unit and converts them into digital data.
  • the converter provides the results of the maximum temperature output unit and the maximum temperature sensor position output unit converted into digital data using power line communication, and may provide the results by performing full-wave rectification.
  • the maximum temperature output unit measures the voltage at the first position where the outputs of each of the plurality of temperature sensors are connected. , the voltage output at the lowest voltage may be used to output at the maximum temperature.
  • the maximum temperature output unit measures the voltage at the first position where the outputs of each of the plurality of temperature sensors are connected. , the voltage output at the highest voltage may be used to output the maximum temperature.
  • each of the plurality of temperature sensors may be disposed on each of a plurality of electrodes constituting an electrode array for transmitting a treatment electric field.
  • a maximum temperature measuring device for solving the above problems includes a plurality of temperature sensors; Operational Amplifier; Diode; and external power (Ve); Connected in order, the plurality of temperature sensors are temperature sensors whose resistance value decreases as the temperature rises, and are fed back to the operational amplifier between the diode and the external power supply (Ve), and the diode (Diode) Between the external power supply Ve, the outputs of each of the plurality of temperature sensors are connected, the voltage is measured at a predetermined first position, the maximum temperature is output, and the operational amplifier and the diode ( Diode), the voltage may be measured at each predetermined second position for the output of each of the plurality of temperature sensors, the measured voltage may be compared, and the position of the temperature sensor outputting the maximum temperature may be output. there is.
  • a maximum temperature measuring device for solving the above problems includes a plurality of temperature sensors; Operational Amplifier; Diode; and Ground; Connected in order, the plurality of temperature sensors are temperature sensors whose resistance value increases as the temperature rises, and between the diode and the ground, feedback is input to the operational amplifier, and the diode and the Between the ground, the outputs of each of the plurality of temperature sensors are connected, the voltage is measured at a predetermined first position, the maximum temperature is output, and the operational amplifier and the diode are connected. In between, the voltage may be measured at each predetermined second position for each output of the plurality of temperature sensors, the measured voltage may be compared, and the position of the temperature sensor outputting the maximum temperature may be output.
  • all temperature values of the electrode pads for applying the electric field can be compared and measured at once, so the maximum temperature value of the temperature sensor where the maximum temperature occurs can be accurately and quickly determined. It has the advantage of being able to measure, and has the effect of accurately determining the location information of the temperature sensor where the maximum temperature occurs.
  • all temperature values of the electrode pads for applying the electric field can be compared and measured at once, so the maximum temperature value and the maximum temperature of the temperature sensor where the maximum temperature occurred Since the location information of the temperature sensor where the problem occurred can be accurately determined, there is an advantage in being able to recognize and respond to risks more quickly.
  • NTC Negative Temperature Coefficient
  • Figure 2 is a circuit diagram for outputting maximum temperature information from a PTC (Positive Temperature Coefficient) type thermistor in a maximum temperature measuring device according to another embodiment of the present invention.
  • PTC Physical Temperature Coefficient
  • Figure 3 is a circuit diagram for outputting maximum temperature information from a plurality of NTC type thermistors in a maximum temperature measuring device according to another embodiment of the present invention.
  • Figure 4 is a circuit diagram of converting maximum temperature information from a plurality of NTC type thermistors into digital information and transmitting it through a serial interface in a maximum temperature measuring device according to another embodiment of the present invention.
  • Figure 5 is a circuit diagram for communicating maximum temperature information from a plurality of NTC type thermistors through a power line using a voltage-to-current converter in a maximum temperature measuring device according to another embodiment of the present invention.
  • Figure 6 is a circuit diagram for power line communication of maximum temperature information from the plurality of NTC type thermistors of Figures 3 and 4, and is a circuit diagram for removing the polarity of the connector through a full-wave rectifier.
  • Figure 7 is a diagram showing the full-wave rectifier of Figure 6 configured using a diode bridge circuit according to an embodiment of the present invention.
  • Figure 8 shows a method of outputting temperature information of the maximum temperature sensor and position information of the temperature sensor in an operational amplifier circuit composed of a plurality of NTC thermistors, a diode and a feedback resistor connected in series in a maximum temperature measuring device according to another embodiment of the present invention. This is a circuit diagram to show.
  • 9 to 11 are diagrams showing a method of transmitting temperature information of a maximum temperature sensor and location information of the temperature sensor to a generator or distributor through various protocols according to another embodiment of the present invention.
  • Figure 12 is a diagram for explaining that a plurality of maximum temperature measuring devices according to an embodiment of the present invention are installed.
  • Figure 13 is a diagram for explaining a maximum temperature measuring device according to an embodiment of the present invention.
  • Figure 14 is a diagram for explaining a maximum temperature measuring device according to another embodiment of the present invention.
  • first, second, and third are used to describe, but are not limited to, various parts, components, regions, layers, and/or sections. These terms are used only to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, the first part, component, region, layer or section described below may be referred to as the second part, component, region, layer or section without departing from the scope of the present invention.
  • FIG. 1 is a circuit diagram for outputting maximum temperature information from a Negative Temperature Coefficient (NTC) type thermistor in a maximum temperature measuring device according to another embodiment of the present invention.
  • Figure 2 is a circuit diagram for outputting maximum temperature information from a PTC (Positive Temperature Coefficient) type thermistor in a maximum temperature measuring device according to another embodiment of the present invention.
  • Figure 3 is a circuit diagram for outputting maximum temperature information from a plurality of NTC type thermistors in a maximum temperature measuring device according to another embodiment of the present invention.
  • Figure 4 is a circuit diagram of converting maximum temperature information from a plurality of NTC type thermistors into digital information and transmitting it through a serial interface in a maximum temperature measuring device according to another embodiment of the present invention.
  • Figure 5 is a circuit diagram for communicating maximum temperature information from a plurality of NTC type thermistors through a power line using a voltage-to-current converter in a maximum temperature measuring device according to another embodiment of the present invention.
  • Figure 6 is a circuit diagram for power line communication of maximum temperature information from the plurality of NTC type thermistors of Figures 3 and 4, and is a circuit diagram for removing the polarity of the connector through a full-wave rectifier.
  • Figure 7 is a diagram showing the full-wave rectifier of Figure 6 configured using a diode bridge circuit according to an embodiment of the present invention.
  • Figure 8 shows a method of outputting temperature information of the maximum temperature sensor and position information of the temperature sensor in an operational amplifier circuit composed of a plurality of NTC thermistors, a diode and a feedback resistor connected in series in a maximum temperature measuring device according to another embodiment of the present invention.
  • This is a circuit diagram to show.
  • 9 to 11 are diagrams showing a method of transmitting temperature information of a maximum temperature sensor and location information of the temperature sensor to a generator or distributor through various protocols according to another embodiment of the present invention.
  • Figure 12 is a diagram for explaining that a plurality of maximum temperature measuring devices according to an embodiment of the present invention are installed.
  • Figure 13 is a diagram for explaining a maximum temperature measuring device according to an embodiment of the present invention.
  • Figure 14 is a diagram for explaining a maximum temperature measuring device according to another embodiment of the present invention.
  • the present invention relates to an electrode pad for use with a generator (alternating current signal generator) for delivering a therapeutic electric field to a target area of a subject.
  • the electrode pad includes a plurality of electrode elements configured to be disposed relative to an object. Each electrode element is configured for attachment to the patient's body.
  • a plurality of temperature sensors are arranged to sense the temperatures of the plurality of electrodes. The maximum temperature is output by simultaneously comparing the output voltage values of a plurality of temperature sensors.
  • FIG. 1 shows an embodiment in which the voltage value corresponding to the maximum temperature value is output through the NTC thermistor 100, buffer 101, diode 102, and bias resistor 103.
  • NTC thermistors have the characteristic of decreasing resistance as temperature increases. These characteristics can be described as follows:
  • Figure 2 shows a circuit that outputs the maximum temperature when using a PTC thermistor instead of an NTC thermistor.
  • Ra the temperature of the first thermistor
  • Rb the second thermistor
  • Va has a higher voltage value than Vb. Therefore, Va flows to the ground through the first diode 102b and the bias resistor 103. Meanwhile, the second diode 102b is blocked. Therefore, Vout is the voltage obtained by subtracting the forward voltage drop of the diode from the voltage value Va of the thermistor with the highest temperature.
  • FIG. 3 shows an embodiment of a circuit that extends FIG. 1 to a plurality of temperature sensors to output a maximum temperature value.
  • a plurality of thermistors 100 are connected in series with a buffer or voltage follower 101 and a diode 102, and each diode is connected to a bias resistor 103 at one point.
  • the current from the power source (V+) flows through the bias resistor toward the temperature sensor with the maximum temperature, and outputs the corresponding voltage.
  • the maximum temperature information is output through a signal line connected to the connector 200.
  • Figure 4 shows a digital output embodiment of a system that measures maximum temperature values from a plurality of temperature sensors.
  • the voltage of the temperature sensor with the maximum output temperature is converted into digital information through the analog-to-digital converter 201 and transmitted to the generator or distributor through UART communication 202.
  • Figure 5 shows an embodiment in which voltage output corresponding to the maximum temperature from a plurality of temperature sensors is communicated through a power line through a voltage-to-current converter.
  • the voltage-to-current converter consists of a transistor 300, a bias resistor 103, and a resistor 301 for converting the voltage of the temperature sensor into current.
  • Figure 6 shows an embodiment of removing the polarity of the connector 200 using a full-wave rectifier 400 in power line communication.
  • Figure 7 is an embodiment of the full-wave rectifier 400 of Figure 6.
  • the diode 401 is configured as a bridge circuit to full-wave rectify the input voltage.
  • An embodiment of the present invention shows that location information of a temperature sensor with the maximum temperature can also be obtained through a relatively simple circuit.
  • Figure 8 shows an embodiment of outputting temperature information and location information of a temperature sensor with the maximum temperature.
  • the NTC thermistor 100 has a characteristic that resistance decreases as temperature increases, and as a result, the output voltage decreases as temperature increases.
  • each thermistor is Va ⁇ Vb ⁇ Vc. satisfies the relationship.
  • the voltage of each thermistor is input to the operational amplifier 500, which is fed back to the diode 102 and the resistor 501.
  • the current flowing through the bias resistor 103 flows through the first diode 102a having the minimum voltage.
  • the second diode 102b and the third diode 102c are blocked. Therefore, Va is output to Vout of the circuit. This is the same principle as described in Figure 1 above.
  • the output of the second amplifier 500b oscillates, and therefore the power source of the second amplifier, Vcc, is output between the second amplifier and the second diode 502b.
  • the power of the amplifier, Vcc is output between the third amplifier 500c and the third diode 102c (502c).
  • the voltage output between the amplifier and the diode (502) is Va - Vd or Vcc, so using a comparator and encoder, location information of the temperature sensor where the maximum temperature occurs can be obtained.
  • Figure 9 is an example of outputting temperature information and location information of a temperature sensor with the maximum temperature from a plurality of temperature sensors through an analog-to-digital converter and UART.
  • the voltage output corresponding to the maximum temperature is converted into digital data through an analog-to-digital converter.
  • the position information of the temperature sensor corresponding to the maximum temperature obtained through the position comparator 600 consisting of a comparator and an encoder is output to a generator or distributor through communication along with the temperature data.
  • 10 and 11 illustrate a method of power line communication of the temperature measurement value of a temperature sensor having the maximum temperature and location information of the temperature sensor among a plurality of temperature sensors.
  • the position information of the temperature sensor is obtained through the position comparator 600, and this signal is converted into a pulse signal through the converter 601.
  • This temperature information and location information are mixed in the mixer 602, passed through the current converter 603, and then loaded onto the power line.
  • the temperature information is also converted into a pulse signal through the converter 605.
  • the output voltage of the maximum temperature sensor is converted into a pulse signal through the converter 605.
  • both temperature information and position information are converted into pulse signals and input to the mixer 602.
  • Figure 12 is a diagram for explaining that a plurality of maximum temperature measuring devices according to an embodiment of the present invention are installed. Referring to FIG. 12, it shows that 4 maximum temperature measuring devices are connected according to an embodiment of the present invention. In light of this, even if 8, 16, etc. maximum temperature measuring devices are connected, each maximum temperature measuring device is It will be possible to determine that maximum temperature measurement can be performed efficiently using . Meanwhile, in Figure 12, it can be seen that each maximum temperature can be measured using each maximum temperature measuring device, and at the same time, the four devices can be integrated and used as an overall maximum temperature measuring device. .
  • the maximum temperature measuring device 1000 for solving the above problem includes a plurality of temperature sensors 1100; and a maximum temperature output unit 1200 that receives output from each of the plurality of temperature sensors 1100 and outputs the maximum temperature among the temperatures measured by the plurality of temperature sensors.
  • Each of the plurality of temperature sensors 1100 may be disposed on a plurality of electrodes constituting an electrode array for transmitting a treatment electric field.
  • the plurality of temperature sensors 1100 may be either a temperature sensor whose resistance value decreases as the temperature increases or a temperature sensor whose resistance value increases as the temperature increases.
  • the maximum temperature output unit 1200 may receive the output of each of the plurality of temperature sensors 1100 and output the maximum temperature among the temperatures measured by the plurality of temperature sensors.
  • the maximum temperature output unit 1200 may measure the voltage at a predetermined first position where the outputs of each of the plurality of temperature sensors are connected and output the maximum temperature.
  • the conversion unit 1400 may further include a conversion unit 1400 that receives the results of the maximum temperature output unit 1200 and converts them into digital data, and the conversion unit 1400 is the maximum temperature output unit converted into digital data.
  • the result of (1200) may be provided using power line communication, but may be provided by performing full-wave rectification.
  • the maximum temperature output unit 1200 is located at the first position where the outputs of each of the plurality of temperature sensors are connected. The voltage may be measured and the voltage output at the lowest voltage may be used to output the maximum temperature.
  • the maximum temperature output unit 1200 is configured to connect the first output unit to which the outputs of each of the plurality of temperature sensors are all connected.
  • the voltage may be measured at the location, and the voltage output at the highest voltage may be used to output the maximum temperature.
  • a maximum temperature measuring device 2000 for solving the above problem includes a plurality of temperature sensors 2100; a maximum temperature output unit 2200 that receives output from each of the plurality of temperature sensors 2100 and outputs the maximum temperature among the temperatures measured by the plurality of temperature sensors; and a maximum temperature sensor position output unit 2300 that receives the output of each of the plurality of temperature sensors and outputs the position of the temperature sensor outputting the maximum temperature among the plurality of temperature sensors.
  • each of the plurality of temperature sensors 2100 may be disposed on each of a plurality of electrodes constituting an electrode array for transmitting a treatment electric field.
  • the maximum temperature output unit 2200 may measure the voltage at a predetermined first position where the outputs of each of the plurality of temperature sensors 2100 are connected and output the maximum temperature.
  • the maximum temperature sensor position output unit 2300 measures the voltage at each predetermined second position for the output of each of the plurality of temperature sensors 2100, compares the measured voltages, and determines the maximum temperature. It may be outputting the position of the temperature sensor being output.
  • it may further include a conversion unit 2400 that receives the results of the maximum temperature output unit 2200 and the maximum temperature sensor position output unit 2300 and converts them into digital data, and the conversion unit 2400
  • the results of the maximum temperature output unit 2200 and the maximum temperature sensor position output unit 2300 converted into digital data may be provided using power line communication, and may be provided by performing full-wave rectification.
  • the maximum temperature output unit 2200 is located at the first position where the outputs of each of the plurality of temperature sensors are connected. The voltage may be measured and the voltage output at the lowest voltage may be used to output the maximum temperature.
  • the maximum temperature output unit 2200 is configured to connect the first output unit to which the outputs of each of the plurality of temperature sensors are all connected.
  • the voltage may be measured at the location, and the voltage output at the highest voltage may be used to output the maximum temperature.
  • a maximum temperature measuring device to solve the above problem includes a plurality of temperature sensors; Operational Amplifier; Diode; and external power (Ve); Connected in order, the plurality of temperature sensors are temperature sensors whose resistance value decreases as the temperature rises, and are fed back to the operational amplifier between the diode and the external power supply (Ve), and the diode (Diode) Between the external power supply Ve, the outputs of each of the plurality of temperature sensors are connected, the voltage is measured at a predetermined first position, the maximum temperature is output, and the operational amplifier and the diode ( Diode), the voltage may be measured at each predetermined second position for the output of each of the plurality of temperature sensors, the measured voltage may be compared, and the position of the temperature sensor outputting the maximum temperature may be output. there is.
  • a maximum temperature measuring device to solve the above problem includes a plurality of temperature sensors; Operational Amplifier; Diode; and Ground; Connected in order, the plurality of temperature sensors are temperature sensors whose resistance value increases as the temperature rises, and between the diode and the ground, feedback is input to the operational amplifier, and the diode and the Between the ground, the outputs of each of the plurality of temperature sensors are connected, the voltage is measured at a predetermined first position, the maximum temperature is output, and the operational amplifier and the diode are connected. In between, the voltage may be measured at each predetermined second position for each output of the plurality of temperature sensors, the measured voltage may be compared, and the position of the temperature sensor outputting the maximum temperature may be output.

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  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract

Un dispositif de mesure de température maximale selon un mode de réalisation de la présente invention comprend : une pluralité de capteurs de température ; et une unité de sortie de température maximale qui est pourvue de sorties des capteurs de température respectifs et fournir une température maximale parmi les températures mesurées par la pluralité de capteurs de température, une valeur de température maximale d'un capteur de température à laquelle la température maximale se produit pouvant ainsi être mesurée précisément et rapidement.
PCT/KR2023/013713 2022-10-07 2023-09-13 Dispositif de mesure de température maximale WO2024076025A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2022-0128260 2022-10-07
KR20220128260 2022-10-07
KR10-2023-0050459 2023-04-18
KR1020230050459A KR20240049134A (ko) 2022-10-07 2023-04-18 최대 온도 측정 장치

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009258016A (ja) * 2008-04-18 2009-11-05 Toshiba Corp 温度検出回路
CN206683789U (zh) * 2017-04-13 2017-11-28 深圳市西林电气技术有限公司 一种多路温度检测电路
KR20210018539A (ko) * 2016-02-29 2021-02-17 펄스 바이오사이언스, 인크. 피드백 제어를 갖는 고전압 아날로그 회로 펄서
KR20220016874A (ko) * 2020-06-22 2022-02-10 바오싱 인텔리전트 테크놀로지 (상하이) 컴퍼니 리미티드 데이지 체인 2선 센서 측정 시스템 및 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009258016A (ja) * 2008-04-18 2009-11-05 Toshiba Corp 温度検出回路
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