WO2020134888A1 - Système et procédé de mesure de résistance - Google Patents

Système et procédé de mesure de résistance Download PDF

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Publication number
WO2020134888A1
WO2020134888A1 PCT/CN2019/122476 CN2019122476W WO2020134888A1 WO 2020134888 A1 WO2020134888 A1 WO 2020134888A1 CN 2019122476 W CN2019122476 W CN 2019122476W WO 2020134888 A1 WO2020134888 A1 WO 2020134888A1
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WO
WIPO (PCT)
Prior art keywords
temperature
heater
resistance
unit
detection system
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Application number
PCT/CN2019/122476
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English (en)
Chinese (zh)
Inventor
陈斌
林晓航
欧阳杰
毛虹懿
廖振龙
林永辉
吴扬
Original Assignee
深圳御烟实业有限公司
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Application filed by 深圳御烟实业有限公司 filed Critical 深圳御烟实业有限公司
Publication of WO2020134888A1 publication Critical patent/WO2020134888A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for

Definitions

  • the invention relates to a resistance detection system and a resistance detection method for heaters.
  • Low-temperature heating smoke is also called heating non-burning smoke, which is more common in the form of cigarettes, but unlike traditional cigarettes that produce smoke by burning, low-temperature heating smoke designed with the idea of "heating does not burn” can make the tobacco leaves just heat enough The degree of smell is emitted without igniting the tobacco leaves, which greatly reduces the harmful substances in first-hand smoke and second-hand smoke.
  • PCT/EP2010/006598 discloses a smoking system
  • the heater includes a plurality of conductive traces on an electrically insulating substrate, the electrically insulating substrate is rigid and arranged to be inserted into the aerosol-forming liner
  • the conductive traces have a temperature coefficient of resistance characteristic that enables the plurality of conductive traces to be used as both a resistance heater and a temperature sensor.
  • the consistency of the heater is not high enough, so that the resistance temperature coefficient characteristics of each heater are different, which makes it difficult to control the temperature during the use of the heater.
  • the temperature detection unit includes at least one non-contact temperature sensor for detecting the temperature of the heater
  • a resistance measuring unit electrically connected to the heater to measure its resistance value
  • the control unit is respectively connected to the temperature detection unit and the resistance measurement unit, the heater is heated by the power supply, and when the temperature detection unit detects that the heater reaches a preset temperature, it records The resistance value of the heater at this temperature.
  • the resistance measuring unit is integrated in a control board electrically connected to the heater.
  • control board includes a storage unit, and the control unit writes the resistance value when the heater reaches a preset temperature into the storage unit.
  • control unit includes a first control subunit and a second control subunit, the first control subunit and the second control subunit are communicatively connected, and the first control The sub-unit is integrated in the control board, the second control sub-unit is communicatively connected to the temperature detection unit; the temperature detection unit detects that the heater reaches a preset temperature, the second control sub-unit sends A signal is sent to the first control subunit, which records the resistance value of the heater at this temperature.
  • the power supply is electrically connected to the control board, and the control board, the heater, and the power supply constitute at least a part of a finished or semi-finished product of the electric heating appliance.
  • the temperature detection unit includes at least two temperature sensors for measuring the temperature of the same position or area of the heater.
  • the temperature detection unit includes at least two temperature sensors for measuring the temperature of different positions or areas of the heater.
  • the temperature detection unit includes at least two temperature sensors, and the preset temperature is at least one of an average temperature, a maximum temperature, and a minimum temperature detected by each temperature sensor.
  • the temperature detection unit includes at least two temperature sensors, and if the temperature difference detected by the two temperature sensors is less than a threshold, the resistance value of the heater at this temperature is recorded ; Otherwise, it means that the detection error, re-test.
  • the temperature sensor is an infrared temperature sensor, and the temperature change range of the heater is within the range of the infrared temperature sensor.
  • the heater is disposed at the optimal measurement position of the infrared temperature sensor.
  • a fixing unit for fixing the heater is further included.
  • it further includes a position adjustment unit connected to the fixing unit and/or the temperature detection unit to adjust the relative position of the heater and the temperature sensor.
  • the preset temperature includes at least a first preset temperature and a second preset temperature
  • the control unit records the first resistance value of the heater corresponding to this temperature and The second resistance value.
  • the temperature detection unit detects the temperature of the heater in real time
  • the resistance measurement unit detects the resistance value of the heater in real time
  • the control unit records the resistance of the heater Relationship with temperature
  • the number of the temperature detection unit and the resistance measurement unit in the resistance detection system are both greater than two.
  • the heater is a plug-in heater for inserting an aerosol-generating product to heat the aerosol-generating substance therein to generate an aerosol.
  • the heater is a cylindrical heater, which is used to contain and heat the aerosol-forming product.
  • the invention also provides a resistance detection method, including the following steps:
  • the present invention measures the resistance value when the heater reaches a preset temperature, and uses this target resistance value for subsequent heating control. If the electric heating appliance with a finished product or a semi-finished product is directly used for the above detection, the measurement process and the target value writing process are synchronized, the operation is simple and fast, and it is easy to realize large-scale industrial production.
  • FIG. 1 is a schematic structural diagram of a resistance detection system of the present invention
  • the “aerosol-generating substance” referred to in the embodiments of the present invention refers to a smoke-generating substance, which is a substance that can generate odor and/or nicotine and/or smoke after being heated or burned, that is, a substance that can be atomized, that is, smoke material.
  • Smoke material can be solid, semi-solid and liquid. Solid smoke materials are often processed into flakes due to considerations such as breathability, assembly, and production. Therefore, they are also commonly referred to as flakes, and filamentous flakes are also referred to as flake filaments.
  • the tobacco materials discussed in the embodiments of the present invention may be natural or synthetic cigarette liquid, cigarette oil, tobacco gum, tobacco paste, cut tobacco, tobacco leaves, etc.
  • the artificial tobacco material contains glycerin, propylene glycol, and nicotine.
  • the tobacco liquid is a liquid
  • the tobacco oil is oily
  • the tobacco gum is a gel
  • the tobacco paste is a paste
  • the tobacco shreds include natural or artificial or extracted tobacco shreds
  • the tobacco leaves Including natural or artificial or extract processed tobacco leaves.
  • Tobacco material can be heated in the form of being sealed by other substances, such as stored in a package that can be degraded by heat, such as microcapsules. After heating, the required volatile substances are derived from the degraded or porous sealed package.
  • the tobacco material described in the embodiments of the present invention may or may not contain nicotine.
  • the tobacco material containing nicotine may include at least one of natural tobacco leaf products, tobacco liquid, tobacco oil, tobacco gum, tobacco paste, tobacco shreds, tobacco leaves, etc. made from nicotine as a raw material.
  • the liquid smoke is water-like, the smoke oil is oil-like, the smoke gum is gel-like, and the tobacco paste is paste-like.
  • the cut tobacco includes natural or artificial or extract-processed cut tobacco, and the tobacco leaf includes natural or artificial or extract-processed cut tobacco. tobacco leaf.
  • Tobacco materials that do not contain nicotine mainly contain aroma substances, such as spices, which can be atomized to simulate the smoking process and to quit smoking.
  • the flavorant includes peppermint oil.
  • the tobacco material may also include other additives, such as glycerin and/or propylene glycol.
  • the “aerosol-forming product” described in the embodiment of the present invention refers to a product containing smoke material, which can generate an aerosol by heating, such as smoke or mist, such as cigarettes, cartridges, or cigarettes, and is preferably a disposable product.
  • the aerosol-forming product itself cannot provide electrical energy.
  • the plug-in heater is configured to be inserted into the interior of the low-temperature heating smoke for heating. It is the most common heater form in the technical field of heating non-burning smoke, and has a certain strength and small volume.
  • the cylindrical heater is configured to contain low-temperature heating smoke and externally heat it.
  • the temperature control of the heater is usually based on the temperature coefficient of resistance.
  • the relationship between the resistance of the conductor and the temperature is basically linear.
  • the conductive traces are usually distributed in thin lines on a small heater volume, and local differences will have a greater impact on the resistance characteristics.
  • the actual heater prepared is affected by various factors such as the materials and processes used. The resistance value and resistance temperature coefficient are difficult to achieve good consistency. If the fixed resistance temperature coefficient characteristic is used for temperature control directly, it will inevitably lead to inaccurate heating temperature control and directly affect the taste.
  • FIG. 1 shows the structure of the resistance detection system according to an embodiment of the present invention, which mainly includes a temperature detection unit 100, a power supply 200, a resistance measurement unit 300, and a control unit 400,
  • the resistance of 500 (not shown in the figure, see FIG. 4) is detected.
  • the heater 500 is preferably a plug-in heater, and its structure and function will be introduced separately. Since the resistance value of the heater 500 continues to increase or decrease as the temperature increases, when the heater 500 is powered, the resistance value of the heater 500 also increases or decreases to a target value when it reaches a preset temperature.
  • the temperature detection unit 100 detects the temperature value, and the resistance measurement unit 300 detects the resistance value.
  • the resistance detection system of the present invention acquires the target value and records it while detecting the heater temperature and resistance at the same time, and uses it for subsequent heating control.
  • the temperature detection unit 100 is a core component for detecting the actual heating temperature of the heater 500, and includes at least one temperature sensor 110.
  • the resistance detection system can start to work. For example, when the temperature of the heater 500 continues to rise when energized, the temperature sensor 110 can detect its actual heating temperature; because the heater 500 is actually inserted into the low-temperature heating smoke for heating, the temperature detection of this structure The detection result of the unit 100 is close to the temperature condition of the heater 500 in a real use situation.
  • the power supply 200 is used to supply electric energy to the heater 500; the power supply method such as current, voltage, and pulse frequency may be different from the actual electric heating appliance, or it may simulate the actual electric heating appliance. In order to achieve an effect closer to the real situation; the form of the power supply 200 can be various, for example, the resistance value of the heater 500 of the finished or semi-finished product is directly detected, and the heater 500 can be directly used to supply power to the heater 500 if the subject is detected For a single heater 500, it can be directly connected to the external power supply 200.
  • the resistance measuring unit 300 shows that it is electrically connected to the heater 500, measures the voltage and current values connected to the heater 500, and converts to obtain a resistance value. The closer the voltage and current values are to the actual value, the measured The closer the obtained resistance value is to the accuracy. Since the resistance value of the heater 500 continuously increases or decreases as the temperature increases, when the heater 500 is powered, the resistance value of the heater 500 also increases or decreases to a target value when it reaches a preset temperature.
  • the control unit 400 is connected to the temperature detection unit 100 and the resistance measurement unit 300 respectively.
  • the heater 500 is heated by the power supply 200. Since the heater 500 is placed in the temperature detection On the unit 100, the temperature detected by the temperature sensor 110 also increases accordingly. If the temperature detection hysteresis or detection error of the temperature sensor 110 is not considered, the temperature detected by the temperature sensor 110 is the actual temperature on the surface of the heater 500 If the temperature detection lag or detection error of the temperature sensor 110 is considered, it can be corrected or compensated by a software algorithm.
  • the temperature detection unit 100 detects that the heater 500 reaches a preset temperature
  • the resistance measurement unit 300 is called The resistance value detected at this time, and the resistance value of the heater 500 at this temperature is recorded.
  • This resistance value can be used as a target value for subsequent heating control.
  • the optimal heating temperature for heating a non-burning smoke is 300°C
  • the resistance value of the heater 500 continuously increases with increasing temperature.
  • the resistance value is R.
  • the resistance value of the heater 500 is increased to R, it indicates that the optimal heating temperature has been reached, reduce the power, or stop the power supply;
  • the resistance value of the heater 500 is lower than R, it means that the optimal heating temperature has not been reached and the power supply is continued.
  • the temperature detection unit 100 includes at least two temperature sensors 110 for measuring the temperature of the heater 500 at the same location or area.
  • the position or area refers to the detection range of the temperature detection unit 100 on the surface of the object to be measured. Only in this detection range will the infrared signal be absorbed by the temperature detection unit 100 to be converted into an electrical signal.
  • the same position is located on the same plane perpendicular to the length extension direction of the heater 500, and the same area is located in a height range that is the length extension direction of the heater 500.
  • the temperature of the heater 500 at the same position or area should be The temperature sensors 110 arranged in this way can be used for calibration between each other.
  • the temperature detection unit 100 includes at least two temperature sensors 110 for measuring the temperature of different positions or areas of the heater 500.
  • the heater 500 may be arranged in a line along the longitudinal extension direction, or may be arranged in a spiral shape.
  • the temperature of different positions or areas of the heater 500 should be somewhat different.
  • Multiple temperature sensors 110 provided in this way can more accurately reflect the temperature distribution on the heater 500 and can be used for more accurate heating temperature Control to achieve better smoke taste and smoking taste.
  • the shape of the cavity 110 is adapted to the heater 500.
  • the heater 500 has a long rod shape or a needle shape, and the size of the cavity 110 is slightly larger than that of the heater 500, so that the heater 500 can be inserted without an excessive gap.
  • the heater 500 has other shapes, for example, a sheet shape, etc., and the shape of the cavity 110 should also be adapted to it.
  • the preset temperature includes at least a first preset temperature and a second preset temperature, for example, an optimal heating temperature for heating unburned smoke is 300°C-330 °C
  • the resistance value of the heater 500 continues to increase as the temperature increases
  • the first preset temperature can be set to 300 °C
  • the second preset temperature can be set to 330 °C
  • the control unit 400 records and The first resistance value and the second resistance value of the heater 500 corresponding to this temperature.
  • the first resistance value when the heater 500 is heated to 300°C is R1
  • the second resistance value when the heater 500 is heated to 330°C is R2, obviously R1 ⁇ R2.
  • the measurement When the resistance value of the heater 500 rises to R1, it means that the optimal heating temperature range has been reached, and the power supply continues or the power supply is reduced, so that the temperature continues to rise; when the resistance value of the heater 500 rises to R2, it means that The upper temperature limit has been reached, the power is reduced or the power supply is stopped, so that the temperature is reduced; when the resistance value of the heater 500 is reduced to R1, it indicates that the optimal temperature lower limit has been reached, and the power supply is started or the power supply is increased.
  • the method for maintaining the optimal heating temperature is similar, and the resistance of the heater 500 is still between R1 and R2, Only in the specific control, when the resistance is reduced to R2, it is necessary to reduce the power or stop the power supply. When the resistance is increased to R1, it is necessary to start the power supply or increase the power supply.
  • a heating control process for heating non-burning smoke requires more target values and more precise temperature control
  • you can set more preset temperatures T1, T2, T3, T4..., and these The resistance values R1, R2, R3, R4, etc. corresponding to the preset temperature constitute a set of discrete temperature-resistance relationships of the heater 500, and any one or two of them can be selected in the manner of the foregoing embodiment.
  • Implement temperature control
  • the temperature detection unit 100 detects the temperature of the heater 500 in real time
  • the resistance measurement unit 300 detects the resistance value of the heater 500 in real time, thus forming a linear temperature resistance of the heater 500 Relationship
  • the control unit 400 records the relationship between the resistance of the heater 500 and the temperature, the heating temperature can be determined according to the resistance value of the heater 500 at any time, to achieve more flexible and diverse control.
  • At least two temperature sensors 110 are provided in the cavity 110 of the temperature detection unit 100, and the temperature values detected by these different temperature sensors 110 are used in combination or selectively to obtain The temperature value of the heater 500 is more accurate. For example, there are two or more temperature sensors 110 detecting the temperature of the same position or area of the heater 500 at the same time. If all of these temperature sensors 110 are well aligned, the detected temperatures should be substantially equal and not too large There is a deviation, but the situation will not be so ideal every time during the detection process, so by using the average temperature method, the error caused by this situation can be reduced to a controllable range.
  • each type of heated non-burning smoke has its own suitable heating temperature. If the heating temperature is too high, the heated tobacco products will exhibit excessive thermal cracking, which will not only release more harmful substances, but also affect the smoking taste. . On the contrary, if the heating temperature is too low, it is not enough to release enough inhaled ingredients, such as aroma components and saline, etc., which affects the smoking experience. Therefore, detecting the maximum temperature and the minimum temperature of the heater 500 can be used as an important reference for subsequent control. Of course, the average temperature, the highest temperature, and the lowest temperature can also be used in combination. For example, the highest value and the lowest value are removed from all the detected temperatures, and the rest is averaged.
  • the temperature detected by each temperature sensor 110 can be selected and used according to the actual heater 500 type and temperature distribution characteristics.
  • the above-mentioned detection temperature use method is only exemplary, and does not include all the examples in the specific use process, as long as there is no contradiction between the use of these detection temperatures alone or in combination, they should be considered as the scope of the description.
  • At least two temperature sensors 110 are provided in the cavity 110. If two of the temperature sensors 110 detect temperature values at different positions of the heater 500, there will be a substantially fixed temperature difference between the two, if The two temperature sensors 110 detect the temperature value at the same position of the heater 500, and the detected temperature should be substantially equal.
  • the temperature difference detected by the heater 500 is also generally fixed, so a threshold can be determined according to the actual situation, if the temperature difference detected by the two temperature sensors 110 is less than this The threshold value indicates that the detection is correct, and the resistance value of the heater 500 is recorded at this temperature; otherwise, it indicates that the detection is wrong and re-detection.
  • the resistance detection system includes more than two temperature detection units 100 and more than two resistance measurement units 300, which may share the same control unit 400, or may be connected separately
  • One control unit 400 forms a situation in which multiple sets of detection subsystems are parallel. This arrangement can realize the simultaneous connection of multiple heaters 500 and realize batch detection of multiple heaters 500.
  • the temperature sensor 110 is an infrared temperature sensor, and its sensitive element is not in contact with the measured object heater 500, and is a non-contact temperature sensor, also known as infrared Thermometer.
  • This temperature sensor can be used to measure the surface temperature of moving objects, small targets and objects with small heat capacity or rapid temperature changes (transient), and can also be used to measure the temperature distribution of the temperature field.
  • the temperature change range of the heater is within the range of the infrared temperature sensor, and the range is the temperature measurement range. When selecting the infrared temperature sensor, you must pay attention to its range. Only when the appropriate range is selected measuring. In addition, pay attention to the type and size of the sensor to achieve accurate temperature measurement.
  • the distance coefficient of infrared temperature sensor D: S is an important parameter of the infrared probe, that is, the distance D between the thermometer probe and the target and the measured The ratio of the target diameter S.
  • the appropriate distance range between a probe and the target can be determined; at the same time, the size of the sensor can not be too large or too small, especially for a fixed focal length thermometer, the focus of the optical system The spot is the smallest spot, and the spot will increase near and far from the focal position.
  • the size of the sensor should be selected according to the size of the heater 500 to avoid the situation where the measurement spot is larger than the size of the sensor.
  • the optical resolution, wavelength range, response time, signal processing function, etc. must also be determined.
  • the material of the object to be measured determines the wavelength range during measurement.
  • special consideration needs to be given to temperature, atmosphere, pollution and The influence of interference and other factors on the performance index to determine the correction method to increase the measurement accuracy.
  • the heater 500 is set at the optimal measurement position of the infrared temperature sensor 110, for example, an infrared temperature sensor with an optical auxiliary positioning unit is used, and the optimal measurement position is most preferably its minimum spot position
  • the measured target size should be larger than the spot size at the focal point to achieve the most accurate measurement of the surface temperature of the heater 500.
  • the temperature detection unit 100 detects the temperature of the cylindrical heater, for example, directly measuring the temperature of the outer wall of the cylindrical heater, or aligning the temperature detection unit 100 with the cylindrical heater The inner wall can complete the temperature detection in the containing cavity.
  • the voltage and current values connected to the cylindrical heater are measured, and the resistance value is converted, and the closer the voltage and current values are to the actual values, the closer the measured resistance values are to the accuracy.
  • the specific resistance measurement process and the working process of the control unit 400 are the same as those in the foregoing embodiment, and will not be repeated here.
  • the resistance detection system of the present invention further includes a fixing unit 510 for fixing the heater 500 so that the distance d between the temperature detection unit 100 and the temperature detection unit 100 cannot be shifted at random, ensuring accurate and accurate measurement stable.
  • the resistance detection system further includes a position adjustment unit (not shown in the figure), connected to the fixing unit 510 and/or the temperature detection unit 100, and adjusting the temperature of the heater 500 and the temperature sensor 110 The relative position, in particular, the distance d between the heater 500 and the temperature sensor 110 is adjusted to the focal length of the temperature sensor 110 so that the heater 500 is located at the optimal measurement position of the temperature sensor 110.
  • the invention also provides a resistance detection method, reflecting the working process of the foregoing resistance detection system, including the following steps:
  • the resistance detection method of this embodiment detects an independent heater 500 that is not connected to a control board.
  • the resistance detection system includes a temperature detection unit 100, a power supply 200, a resistance measurement unit 300, and a control unit 400. The detailed process is as follows:
  • Fix the heater 500 for example, use the fixing unit 510 to limit the distance d between the heater 500 and the temperature detection unit 100 to an appropriate range, preferably the heater 500 is located exactly at the minimum spot of the infrared temperature sensor 110
  • the lead of 500 is connected to the positive and negative poles of the input port of the power supply 200, and the resistance measurement unit 300 retrieves the power supply data of the power supply 200 to the heater 500. Therefore, the detection of the heater 500 by the resistance measurement unit 300 also forms a complete loop.
  • the temperature detection unit 100 detects that the temperature of the heater 500 reaches a preset temperature, it sends a signal to the control unit 400, and the control unit 400 immediately retrieves the resistance value measured by the resistance measurement unit 300 and records it.
  • the resistance detection system further includes a flash memory, and the detected resistance value is directly written into the flash memory.
  • the power supply mode can be adjusted, such as adjusting the power or stopping the power supply or stopping the power supply.
  • the resistance detection method of this embodiment the detection object is a semi-finished electric heating appliance
  • the semi-finished electric heating appliance is a heater 500 connected to a control board 600
  • the resistance detection system includes a temperature detection unit 100, resistance measurement The unit 300, the control unit 400, the power supply 200, and the resistance measuring unit 300 are integrated in a control board 600 electrically connected to the heater 500.
  • the semi-finished electric heating appliance for example, use the fixing unit 510 to limit the distance d between the heater 500 and the temperature detection unit 100 to an appropriate range, preferably the heater 500 is located exactly at the smallest spot of the infrared temperature sensor 110.
  • the control board 600 and the control unit 400 are connected through a serial port 610 such as USB.
  • the resistance measurement unit 300 retrieves the power supply data to the heater 500. Therefore, the resistance measurement unit The detection of the heater 500 by 300 also forms a complete loop.
  • the temperature detection unit 100 detects that the temperature of the heater 500 reaches a preset temperature, it sends a signal to the control unit 400, and the control unit 400 immediately retrieves the resistance value measured by the resistance measurement unit 300 and records it.
  • the control board 600 includes a storage unit (not shown in the figure), and the control unit 400 writes the resistance value of the heater 500 at a preset temperature into the storage unit.
  • the stored resistance value can be directly used for the temperature control parameters of the smoking set in the subsequent use process.
  • the power supply mode can be adjusted, such as adjusting the power or stopping the power supply or stopping the power supply.
  • the detection object is a finished electric heating appliance, which includes a heater 500, a control board 600, a battery 200, a housing 700, and the like.
  • the resistance detection system includes a temperature detection unit 100, a resistance measurement unit 300, a control unit 400, and a power supply 200.
  • the resistance measurement unit 300 is integrated in a control board 600 electrically connected to the heater 500, and the power supply 200 is directly heated by the finished product.
  • the control unit 400 includes a first control subunit and a second control subunit, the first control subunit and the second control subunit are communicatively connected, and the first control subunit is integrated in In the control board 600, the second control subunit is communicatively connected to the temperature detection unit 100.
  • Fix the heater 500 for example, use the fixing unit 510 to limit the distance d between the heater 500 and the temperature detection unit 100 to an appropriate range, preferably the heater 500 is located exactly at the minimum spot of the infrared temperature sensor 110, and further makes There is no obstruction between the heater 500 and the infrared temperature sensor 110.
  • the lead of the control board 600 of the finished electric heating appliance has been connected to the positive and negative poles of the input port of the power supply 200.
  • the control board 600 and the control unit 400 are connected through a serial port 610 such as USB.
  • the resistance measurement unit 300 retrieves the power supply data to the heater 500. Therefore, the detection of the heater 500 by the resistance measuring unit 300 also forms a complete loop.
  • the second control subunit sends a signal to the first control subunit, and the first control subunit records the temperature at this temperature.
  • the resistance value of the heater 500 is described.
  • the control board 600 includes a storage unit, and the control unit 400 writes the resistance value when the heater 500 reaches a preset temperature into the storage unit.
  • the stored resistance value can be used directly for the temperature control parameters of the smoking set during subsequent use.
  • the power supply mode can be adjusted, such as adjusting the power or stopping the power supply or stopping the power supply.

Abstract

L'invention concerne un système et un procédé de mesure de résistance pour un dispositif de chauffage (500). Le système de mesure de résistance comprend une unité de mesure de température (100), une alimentation électrique (200), une unité de mesure de résistance (300) et une unité de commande (400); la valeur de résistance du dispositif de chauffage (500) augmente ou diminue en continu avec l'augmentation de la température, et, par conséquent, lorsque de l'énergie est fournie au dispositif de chauffage (500), la valeur de résistance du dispositif de chauffage (500) augmente ou diminue jusqu'à une valeur cible lorsque le dispositif de chauffage (500) atteint une température prédéfinie, et tout en mesurant la température et la résistance du dispositif de chauffage (500) simultanément, le système de mesure de résistance acquiert la valeur cible et l'enregistre pour une commande de chauffage ultérieure. La connexion d'une unité de commande (400) à une pluralité d'unités de mesure de température (100) et d'unités de mesure de résistance (300) permet la mesure par lots des dispositifs de chauffage (500).
PCT/CN2019/122476 2018-12-24 2019-12-02 Système et procédé de mesure de résistance WO2020134888A1 (fr)

Applications Claiming Priority (2)

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CN201811583949.3A CN111351985B (zh) 2018-12-24 2018-12-24 电阻检测系统和方法
CN201811583949.3 2018-12-24

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CN111838756A (zh) * 2019-04-30 2020-10-30 上海新型烟草制品研究院有限公司 气雾产生装置及其温度调整方法、系统、设备、存储介质
CN113455706A (zh) * 2021-08-23 2021-10-01 湖南中烟工业有限责任公司 一种烟具加热器校准系统及其校准方法

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