WO2022130491A1 - 吸引装置、及び制御方法 - Google Patents
吸引装置、及び制御方法 Download PDFInfo
- Publication number
- WO2022130491A1 WO2022130491A1 PCT/JP2020/046702 JP2020046702W WO2022130491A1 WO 2022130491 A1 WO2022130491 A1 WO 2022130491A1 JP 2020046702 W JP2020046702 W JP 2020046702W WO 2022130491 A1 WO2022130491 A1 WO 2022130491A1
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- WO
- WIPO (PCT)
- Prior art keywords
- voltage
- conversion value
- resistance
- suction device
- measurement target
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 124
- 238000005259 measurement Methods 0.000 claims abstract description 93
- 239000000443 aerosol Substances 0.000 claims abstract description 61
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- 230000007246 mechanism Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 20
- 239000007788 liquid Substances 0.000 description 18
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- 235000019634 flavors Nutrition 0.000 description 17
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- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
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- 238000012360 testing method Methods 0.000 description 3
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
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- 238000009413 insulation Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
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- 239000002657 fibrous material Substances 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/51—Arrangement of sensors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/04—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised
- A61M11/041—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters
- A61M11/042—Sprayers or atomisers specially adapted for therapeutic purposes operated by the vapour pressure of the liquid to be sprayed or atomised using heaters electrical
-
- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/06—Inhaling appliances shaped like cigars, cigarettes or pipes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3368—Temperature
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/35—Communication
- A61M2205/3576—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver
- A61M2205/3592—Communication with non implanted data transmission devices, e.g. using external transmitter or receiver using telemetric means, e.g. radio or optical transmission
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2217/00—Temperature measurement using electric or magnetic components already present in the system to be measured
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
- H03M1/0619—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by dividing out the errors, i.e. using a ratiometric arrangement
Definitions
- the present invention relates to a suction device and a control method.
- the suction device uses a substrate containing an aerosol source for producing an aerosol, a flavor source for imparting a flavor component to the produced aerosol, and the like to generate an aerosol to which the flavor component is added.
- the user can taste the flavor by sucking the aerosol to which the flavor component is added, which is generated by the suction device.
- Patent Document 1 it is considered to mount a lithium ion battery, a solid-state battery, or the like on the suction device.
- Patent Document 1 the technology disclosed in the above-mentioned Patent Document 1 and the like is still young since it was developed, and there is still room for improvement from various viewpoints.
- an object of the present invention is to provide a mechanism capable of improving the stability of operation of a power supply in a suction device.
- a suction device for generating an aerosol which is connected in series to a first resistor having a predetermined resistance and the first resistor.
- the measurement is based on the measurement target having a variable resistance, the A / D converter that outputs the A / D conversion value of the applied voltage, and the A / D conversion value output from the A / D converter.
- the A / D converter includes a measuring unit for measuring the resistance of the object, and a reference voltage, which is a voltage for determining the full scale of the A / D conversion value, is applied from the first power source, and the first power supply is applied.
- the A / D conversion value of the first voltage applied from the second power source different from the power source is output, and the second power source applied to the measurement target from the second power source via the first resistor.
- the A / D conversion value of the voltage of 2 is output, and the measuring unit outputs the ratio of the A / D conversion value of the first voltage to the A / D conversion value of the second voltage, and the first.
- a suction device is provided that calculates the resistance of the object to be measured based on the resistance of the resistor.
- the measuring unit may calculate the resistance of the measurement target based on the following equation.
- the A / D conversion value (Vdut) is the A / D conversion value of the first voltage
- the / D conversion value (Vad) is the A / D conversion value of the second voltage
- R is the resistance of the first resistor
- Rdut is the resistance to be measured.
- the absolute value of the first voltage may be equal to or less than the absolute value of the reference voltage.
- the suction device may further include a correction unit that corrects the absolute value of the first voltage to be equal to or less than the absolute value of the reference voltage.
- the correction unit may be a second resistor having a predetermined resistance.
- the correction unit may be an amplifier that attenuates the input voltage and outputs it.
- the A / D converter may output the A / D conversion value of the first voltage applied to the first resistor from the second power source.
- the measuring unit may measure the temperature of the measurement target based on the resistance of the measurement target.
- the suction device further includes a heating unit that generates the aerosol by heating the aerosol source, and the measurement target may be the heating unit.
- the suction device further includes a heating unit that generates the aerosol by heating the aerosol source, and a thermistor that changes the temperature according to the temperature change of the heating unit, and the measurement target is the thermistor. May be good.
- the power supply to the measurement target, which is performed to measure the resistance of the measurement target, is periodically executed at the first timing, and the power supply to the heating unit, which is performed by the heating unit to heat the aerosol source, is performed. May be periodically executed at a second timing different from the first timing.
- a control method for controlling a suction device that produces an aerosol and the suction device is a first resistor having a predetermined resistance.
- the A / D is provided with a measurement target having a variable resistance connected in series with the first resistor, and an A / D converter for outputting an A / D conversion value of the applied voltage.
- a reference voltage which is a voltage for determining the full scale of the A / D conversion value, is applied to the converter from the first power supply, and a first voltage is applied from a second power supply different from the first power supply.
- the A / D conversion value of the first voltage is output, and the second voltage is applied to the measurement target from the second power supply via the first resistor to obtain the second voltage. Based on the output of the A / D conversion value, the ratio of the A / D conversion value of the first voltage to the A / D conversion value of the second voltage, and the resistance of the first resistor. , The control method including the calculation of the resistance of the measurement target is provided.
- FIG. 1 It is a schematic diagram which shows typically the 1st structural example of a suction device. It is a schematic diagram which shows typically the 2nd structural example of a suction device. It is a figure for demonstrating the structure about A / D conversion of the suction device which concerns on this embodiment. It is a figure for demonstrating an example of the timing of feeding power to the heating part in the suction device which concerns on this embodiment. It is a flowchart which shows an example of the flow of the process executed in the suction apparatus which concerns on this embodiment. It is a figure for demonstrating the structure about A / D conversion of the suction device which concerns on a comparative example.
- elements having substantially the same functional configuration may be distinguished by adding different alphabets after the same reference numerals.
- a plurality of elements having substantially the same functional configuration are distinguished as needed, such as suction devices 100A and 100B.
- suction devices 100A and 100B are distinguished as needed, such as suction devices 100A and 100B.
- suction device 100 is simply referred to.
- the suction device is a device that produces a substance that is sucked by the user.
- the substance produced by the suction device will be described as being an aerosol.
- the substance produced by the suction device may be a gas.
- FIG. 1 is a schematic diagram schematically showing a first configuration example of a suction device.
- the suction device 100A includes a power supply unit 110, a cartridge 120, and a flavoring cartridge 130.
- the power supply unit 110 includes a power supply unit 111A, a sensor unit 112A, a notification unit 113A, a storage unit 114A, a communication unit 115A, and a control unit 116A.
- the cartridge 120 includes a heating unit 121A, a liquid guiding unit 122, and a liquid storage unit 123.
- the flavoring cartridge 130 includes a flavor source 131 and a mouthpiece 124.
- An air flow path 180 is formed in the cartridge 120 and the flavoring cartridge 130.
- the power supply unit 111A stores electric power. Then, the power supply unit 111A supplies electric power to each component of the suction device 100A based on the control by the control unit 116A.
- the power supply unit 111A may be composed of, for example, a rechargeable battery such as a lithium ion secondary battery.
- the sensor unit 112A acquires various information about the suction device 100A.
- the sensor unit 112A is composed of a pressure sensor such as a microphone capacitor, a flow rate sensor, a temperature sensor, or the like, and acquires a value associated with suction by the user.
- the sensor unit 112A is configured by an input device such as a button or a switch that receives input of information from the user.
- the notification unit 113A notifies the user of the information.
- the notification unit 113A is composed of, for example, a light emitting device that emits light, a display device that displays an image, a sound output device that outputs sound, a vibrating vibration device, and the like.
- the storage unit 114A stores various information for the operation of the suction device 100A.
- the storage unit 114A is composed of a non-volatile storage medium such as a flash memory.
- the communication unit 115A is a communication interface capable of performing communication conforming to any wired or wireless communication standard.
- a communication standard for example, Wi-Fi (registered trademark), Bluetooth (registered trademark), or the like can be adopted.
- the control unit 116A functions as an arithmetic processing device and a control device, and controls the overall operation in the suction device 100A according to various programs.
- the control unit 116A is realized by, for example, an electronic circuit such as a CPU (Central Processing Unit) and a microprocessor.
- the liquid storage unit 123 stores the aerosol source.
- the atomization of the aerosol source produces an aerosol.
- Aerosol sources are, for example, polyhydric alcohols such as glycerin and propylene glycol, and liquids such as water. Aerosol sources may contain tobacco-derived or non-tobacco-derived flavor components.
- the suction device 100A is a medical inhaler such as a nebulizer
- the aerosol source may include a drug.
- the liquid guiding unit 122 guides and holds the aerosol source, which is the liquid stored in the liquid storage unit 123, from the liquid storage unit 123.
- the liquid guiding portion 122 is a wick formed by twisting a fiber material such as glass fiber or a porous material such as a porous ceramic. In that case, the aerosol source stored in the liquid storage unit 123 is induced by the capillary effect of the wick.
- the heating unit 121A heats the aerosol source to atomize the aerosol source and generate an aerosol.
- the heating unit 121A is configured as a coil and is wound around the liquid induction unit 122.
- the heating unit 121A generates heat, the aerosol source held in the liquid induction unit 122 is heated and atomized to generate an aerosol.
- the heating unit 121A generates heat when power is supplied from the power supply unit 111A.
- power may be supplied when the sensor unit 112A detects that the user has started suction and / or that predetermined information has been input. Then, when it is detected by the sensor unit 112A that the user has finished the suction and / or that the predetermined information has been input, the power supply may be stopped.
- the flavor source 131 is a component for imparting a flavor component to the aerosol.
- the flavor source 131 may contain a tobacco-derived or non-tobacco-derived flavor component.
- the air flow path 180 is a flow path of air sucked by the user.
- the air flow path 180 has a tubular structure having an air inflow hole 181 which is an inlet of air into the air flow path 180 and an air outflow hole 182 which is an outlet of air from the air flow path 180 at both ends.
- the liquid guiding portion 122 is arranged on the upstream side (the side close to the air inflow hole 181), and the flavor source 131 is arranged on the downstream side (the side close to the air outflow hole 182).
- the air flowing in from the air inflow hole 181 due to the suction by the user is mixed with the aerosol generated by the heating unit 121A, and is transported to the air outflow hole 182 through the flavor source 131 as shown by the arrow 190.
- the flavor component contained in the flavor source 131 is imparted to the aerosol.
- the mouthpiece 124 is a member that can be held by the user during suction.
- An air outflow hole 182 is arranged in the mouthpiece 124. The user can take in the mixed fluid of aerosol and air into the oral cavity by holding and sucking the mouthpiece 124.
- suction device 100A has been described above.
- the configuration of the suction device 100A is not limited to the above, and various configurations exemplified below can be adopted.
- the suction device 100A does not have to include the flavoring cartridge 130.
- the cartridge 120 is provided with the mouthpiece 124.
- the suction device 100A may include a plurality of types of aerosol sources.
- a plurality of types of aerosols generated from a plurality of types of aerosol sources may be mixed in the air flow path 180 to cause a chemical reaction, whereby another type of aerosol may be produced.
- the means for atomizing the aerosol source is not limited to heating by the heating unit 121A.
- the means for atomizing the aerosol source may be oscillating atomization or induction heating.
- FIG. 2 is a schematic diagram schematically showing a second configuration example of the suction device.
- the suction device 100B according to this configuration example includes a power supply unit 111B, a sensor unit 112B, a notification unit 113B, a storage unit 114B, a communication unit 115B, a control unit 116B, a heating unit 121B, a holding unit 140, and a holding unit 140. Includes insulation 144.
- Each of the power supply unit 111B, the sensor unit 112B, the notification unit 113B, the storage unit 114B, the communication unit 115B, and the control unit 116B is substantially the same as the corresponding components included in the suction device 100A according to the first configuration example. Is.
- the holding portion 140 has an internal space 141, and holds the stick-type base material 150 while accommodating a part of the stick-type base material 150 in the internal space 141.
- the holding portion 140 has an opening 142 that communicates the internal space 141 to the outside, and holds the stick-type base material 150 inserted into the internal space 141 from the opening 142.
- the holding portion 140 is a tubular body having an opening 142 and a bottom portion 143 as a bottom surface, and defines a columnar internal space 141.
- the holding portion 140 also has a function of defining a flow path of air supplied to the stick-type base material 150.
- An air inflow hole which is an inlet for air to such a flow path, is arranged, for example, at the bottom 143.
- the air outflow hole which is an outlet for air from such a flow path, is an opening 142.
- the stick-type base material 150 includes a base material portion 151 and a mouthpiece portion 152.
- the base material portion 151 contains an aerosol source.
- the aerosol source is not limited to a liquid, but may be a solid.
- the heating unit 121B has the same configuration as the heating unit 121A according to the first configuration example. However, in the example shown in FIG. 2, the heating unit 121B is configured in a film shape and is arranged so as to cover the outer periphery of the holding unit 140. Then, when the heating unit 121B generates heat, the base material portion 151 of the stick-type base material 150 is heated from the outer periphery to generate an aerosol.
- the heat insulating portion 144 prevents heat transfer from the heating portion 121B to other components.
- the heat insulating portion 144 is made of a vacuum heat insulating material, an airgel heat insulating material, or the like.
- suction device 100B has been described above.
- the configuration of the suction device 100B is not limited to the above, and various configurations exemplified below can be adopted.
- the heating portion 121B may be configured in a blade shape and may be arranged so as to project from the bottom portion 143 of the holding portion 140 to the internal space 141. In that case, the blade-shaped heating portion 121B is inserted into the base material portion 151 of the stick-type base material 150, and the base material portion 151 of the stick-type base material 150 is heated from the inside. As another example, the heating portion 121B may be arranged so as to cover the bottom portion 143 of the holding portion 140. Further, the heating unit 121B is a combination of two or more of a first heating unit that covers the outer periphery of the holding unit 140, a blade-shaped second heating unit, and a third heating unit that covers the bottom portion 143 of the holding unit 140. It may be configured as.
- the holding portion 140 may include an opening / closing mechanism such as a hinge that opens / closes a part of the outer shell forming the internal space 141. Then, the holding portion 140 may sandwich the stick-type base material 150 inserted in the internal space 141 by opening and closing the outer shell.
- the heating unit 121B may be provided at the sandwiched portion in the holding unit 140 and may be heated while pressing the stick-type base material 150.
- the means for atomizing the aerosol source is not limited to heating by the heating unit 121B.
- the means for atomizing the aerosol source may be induction heating.
- the suction device 100B may further include a heating unit 121A, a liquid induction unit 122, a liquid storage unit 123, and an air flow path 180 according to the first configuration example, and the air flow path 180 air outflow hole 182. May also serve as an air inflow hole to the internal space 141.
- the mixed fluid of the aerosol and air generated by the heating unit 121A flows into the internal space 141, is further mixed with the aerosol generated by the heating unit 121B, and reaches the user's oral cavity.
- a / D conversion is performed.
- a reference voltage VREF for determining the full scale of the A / D conversion value and a voltage VDUT applied to the circuit under test are supplied from the same power supply. This is because when the voltage supplied from the power supply fluctuates, the voltage VDUT follows the fluctuation of the reference voltage VREF and fluctuates, so that the tracking action works and the full-scale fluctuation of the A / D conversion value is offset. Because.
- the voltage VDUT can determine the voltage value independently of the reference voltage VREF, so that highly accurate A / D conversion is possible.
- the influence of each fluctuation of the reference voltage VREF and the voltage VDUT appears in the A / D conversion value.
- a mechanism is provided in which the reference voltage VREF and the voltage VDUT are supplied from different power sources, and the influence of the fluctuation of the reference voltage VREF and the influence of the fluctuation of the voltage VDUT are offset. According to such a mechanism, highly accurate A / D conversion is possible while removing the influence of fluctuations of the reference voltage VREF and the voltage VDUT. In the present embodiment, from this point of view, the stability of the operation of the suction device 100 with respect to the power source can be improved. Hereinafter, this embodiment will be described with reference to FIGS. 3 to 5.
- FIG. 3 is a diagram for explaining a configuration related to A / D conversion of the suction device 100 according to the present embodiment.
- the suction device 100 according to the present embodiment includes a first battery 11, a second battery 12, an A / D (Analog to Digital) converter 13, a voltage dividing resistance 14, and a measurement target 15. And the measuring unit 16.
- the first battery 11 and the second battery 12 are included in, for example, the power supply unit 111 shown in FIGS. 1 and 2.
- the A / D converter 13, the voltage dividing resistance 14, and the measuring unit 16 are included in, for example, the sensor unit 112 shown in FIGS. 1 and 2.
- the first battery 11 and the second battery 12 store electric power and supply the stored electric power to other components.
- the first battery 11 and the second battery 12 are configured separately.
- the reference voltage VREF applied to the A / D converter 13 is supplied from the first battery 11.
- the voltage VDUT applied to the circuit under test is supplied from the second battery 12.
- the circuit under test in the example shown in FIG. 3 is a voltage dividing resistor 14 and a measurement target 15.
- the voltage dividing resistor 14 is a resistor having a predetermined resistance R (that is, a known resistance).
- the voltage dividing resistor 14 is an example of the first resistor in this embodiment.
- the voltage dividing resistor 14 and the measurement target 15 form a so-called voltage dividing circuit.
- the voltage divider circuit is a circuit that generates a voltage proportional to the input voltage at an intermediate point between a plurality of resistors.
- the measurement target 15 is a target for which the resistance Rdut is measured.
- the resistance Rdut of the measurement target 15 is variable. As shown in FIG. 3, the measurement target 15 is connected in series with the voltage dividing resistor 14.
- the A / D converter 13 outputs the A / D conversion value of the applied voltage.
- the A / D converter 13 outputs the A / D conversion value of the applied voltage in relation to the reference voltage.
- the reference voltage is a voltage for determining the full scale of the A / D conversion value.
- a reference voltage is applied to the A / D converter 13 from the first battery 11.
- VREF is applied as a reference voltage.
- the A / D converter 13 outputs a value corresponding to a full scale (hereinafter, also referred to as a full scale value) when the same voltage as the reference voltage VREF is applied. Then, for a voltage equal to or lower than the reference voltage VREF, an A / D conversion value equal to or lower than the full scale value is output.
- the A / D conversion value is clipped to the upper limit value. That is, the full scale value is output.
- a power supply voltage Vdut is applied to the A / D converter 13 from the second battery 12. Then, the A / D converter 13 outputs the A / D conversion value of the power supply voltage Vdut at full scale based on the reference voltage VREF.
- a voltage applied to the voltage dividing resistance 14 from the second battery 12 is applied to the A / D converter 13 as the power supply voltage Vdut. That is, the voltage before the voltage division by the voltage dividing resistance 14 and the measurement target 15 is applied to the A / D converter 13 as the power supply voltage Vdut.
- the power supply voltage Vdut is an example of the first voltage in the present embodiment. In the example shown in FIG. 3, the power supply voltage Vdut is equal to the voltage VDUT.
- An input voltage Vad is applied to the A / D converter 13 from the second battery 12. Then, the A / D converter 13 outputs the A / D conversion value of the input voltage Vad at full scale based on the reference voltage VREF.
- a voltage applied to the measurement target 15 from the second battery 12 via the voltage dividing resistance 14 is applied to the A / D converter 13 as the input voltage Vad. That is, the voltage after voltage division at the intermediate point between the voltage dividing resistance 14 and the measurement target 15 is applied to the A / D converter 13 as the input voltage Vad.
- the input voltage Vad is an example of the second voltage in this embodiment.
- the change in the resistance Rdut of the measurement target 15 is reflected in the input voltage Vad. More specifically, since the resistance R of the voltage dividing resistor 14 is known, when the input voltage Vad changes, the change in the resistance Rdut of the measurement target 15 is captured from the change in the A / D conversion value of the input voltage Vad. Is possible.
- the measuring unit 16 measures the resistance of the measurement target 15 based on the A / D conversion value output from the A / D converter 13.
- the measuring unit 16 is configured by an MCU (Micro Control Unit) as an example. Specifically, the measuring unit 16 determines the resistance Rdut of the measurement target 15 based on the ratio of the A / D conversion value of the input voltage Vad to the A / D conversion value of the power supply voltage Vdut and the resistance R of the voltage dividing resistance 14. calculate.
- MCU Micro Control Unit
- the measuring unit 16 can calculate the input voltage Vad from the A / D conversion value of the input voltage Vad.
- the input voltage Vad is calculated by the following equation.
- the A / D conversion value (Vad) is the A / D conversion value of the input voltage Vad.
- the measuring unit 16 can calculate the power supply voltage Vdut from the A / D conversion value of the power supply voltage Vdut.
- the power supply voltage Vdut is calculated by the following equation.
- the A / D conversion value (Vdut) is the A / D conversion value of the power supply voltage Vdut.
- the measuring unit 16 calculates the resistance Rdut of the measurement target 15 based on the above mathematical formula (5). As shown in the above formula (5), the resistance Rdut of the measurement target 15 is calculated based on the ratio of the A / D conversion value of the input voltage Vad and the A / D conversion value of the power supply voltage Vdut. Therefore, the measuring unit 16 can calculate the resistance Rdut of the measurement target 15 by removing the influence of the fluctuation of the reference voltage VREF and the voltage VDUT. That is, the measuring unit 16 can calculate the resistance Rdut of the measurement target 15 with high accuracy.
- the measuring unit 16 can calculate the resistance Rdut of the measurement target 15 by removing the influence of the fluctuation of the reference voltage VREF.
- the reference voltage VREF is constant and the voltage VDUT fluctuates.
- the A / D conversion value of the power supply voltage Vdut and the A / D conversion value of the input voltage Vad fluctuate.
- the resistance Rdut of the measurement target 15 calculated by the above mathematical formula (5) also does not change. That is, the measuring unit 16 can calculate the resistance Rdut of the measurement target 15 by removing the influence of the fluctuation of the voltage VDUT.
- the absolute value of the power supply voltage Vdut is less than or equal to the absolute value of the reference voltage VREF.
- the absolute value of the power supply voltage Vdut exceeds the absolute value of the reference voltage VREF, the power supply voltage Vdut overflows with respect to the full scale of the A / D conversion, and the A / D conversion value is clipped to the upper limit value. That is, the A / D conversion value of the power supply voltage Vdut becomes inaccurate.
- the absolute value of the power supply voltage Vdut is equal to or less than the absolute value of the reference voltage VREF, the power supply voltage Vdut is within the full scale of the A / D conversion, so that the A / D conversion value is clipped to the upper limit value. Is avoided. Therefore, it is possible to obtain an accurate A / D conversion value of the power supply voltage Vdut.
- the suction device 100 may further include a correction unit that corrects the absolute value of the power supply voltage Vdut to be equal to or less than the absolute value of the reference voltage VREF.
- the correction unit is arranged between the second battery 12 and the A / D converter 13, and divides the voltage VDUT so that the absolute value of the power supply voltage Vdut is equal to or less than the absolute value of the reference voltage VREF. Or attenuate.
- the absolute value of the power supply voltage Vdut can be made equal to or less than the absolute value of the reference voltage VREF, so that an accurate A / D conversion value of the power supply voltage Vdut can be obtained.
- the measuring unit 16 can calculate the resistance Rdut of the measurement target 15 with high accuracy.
- the correction unit may be a resistor having a predetermined resistance.
- a resistor is an example of the second resistor in this embodiment.
- the first resistor that is, the voltage dividing resistor 14
- the second resistor may form a voltage dividing circuit, and may be intermediate between the first resistor and the second resistor.
- the voltage at the point after voltage division may be applied to the A / D converter 13 as the power supply voltage Vdut.
- calibration is performed in advance so that there is no error between the calculated voltage division ratio calculated by the resistance of the first resistor and the resistance of the second resistor and the actual voltage division ratio. It is desirable to be done.
- the power supply voltage Vdut calculated from the A / D conversion value of the power supply voltage Vdut will be a value deviated.
- changing the circuit so that the calculated voltage division ratio and the actual voltage division ratio match, or using the actual voltage division ratio when converting the voltage from the A / D conversion value, etc. Can be carried out.
- the configuration of the voltage dividing circuit such as the number of resistors as the correction unit and the position of the intermediate point is not particularly limited as long as a desired voltage dividing ratio can be realized.
- the correction unit may be an amplifier that attenuates the input voltage and outputs it. In any case, by providing the correction unit, it is possible to obtain an accurate A / D conversion value of the power supply voltage Vdut.
- the measurement target 15 is a member whose electrical resistance changes in response to a temperature change. Therefore, the measuring unit 16 measures the temperature of the measurement target 15 based on the resistance of the measurement target 15. According to such a configuration, it is possible to measure the temperature of the measurement target 15.
- the measurement target 15 is the heating unit 121.
- the measuring unit 16 can measure the temperature of the heating unit 121 based on the resistance of the heating unit 121. Further, since it is not necessary to separately provide a thermistor or the like for measuring the temperature of the heating unit 121, the ease of designing the suction device 100 is improved.
- the power supply to the measurement target 15 performed to measure the resistance of the measurement target 15 is periodically executed at the first timing. That is, the power supply to the heating unit 121, which is performed to measure the temperature of the heating unit 121, is periodically executed at the first timing.
- the power feeding to the heating unit 121 which is performed by the heating unit 121 to heat the aerosol source, is periodically executed at a second timing different from the first timing. According to such a configuration, temperature measurement and heating are performed alternately. Therefore, it is possible to continue heating by the heating unit 121 while monitoring the temperature of the heating unit 121.
- a weaker voltage may be applied to the heating unit 121 as compared with the case of heating. According to such a configuration, it is possible to suppress power consumption. In addition, it is possible to prevent a failure of the measurement system due to the flow of a large current.
- the timing of feeding the heating unit 121 will be described in detail with reference to FIG.
- FIG. 4 is a diagram for explaining an example of the timing of feeding power to the heating unit 121 in the suction device 100 according to the present embodiment.
- the horizontal axis of FIG. 4 is the time axis, and time flows from left to right.
- the suction device 100 has a control cycle of 50 ms as one cycle, and repeatedly executes the process shown in FIG.
- power is supplied to the heating unit 121 for measuring the temperature of the heating unit 121 in the first 3 ms of the control cycle.
- the subsequent 46 ms power is supplied to the heating unit 121 for heating.
- the subsequent 1 ms the power supply to the heating unit 121 is stopped.
- each of the first battery 11 and the second battery 12 applies a voltage.
- the first battery 11 applies the reference voltage VREF to the A / D converter 13
- the second battery 12 applies the power supply voltage Vdut to the A / D converter 13.
- the input voltage Vad is applied.
- 1 ms on the way the application of the voltage by each of the first battery 11 and the second battery 12 is continued, and the A / D conversion is performed.
- 1 ms in the middle includes the settling time of the A / D converter 13.
- the power supply by the first battery 11 and the second battery 12 is stopped.
- the A / D converter 13 is discharged.
- FIG. 5 is a flowchart showing an example of a process flow executed by the suction device 100 according to the present embodiment.
- the first battery 11 applies the reference voltage VREF to the A / D converter 13, and the second battery 12 transfers the power supply voltage Vdut and the input voltage Vad to the A / D converter 13. Apply (step S102).
- the A / D converter 13 outputs the A / D conversion value of the power supply voltage Vdut and the A / D conversion value of the input voltage Vad (step S104).
- the measuring unit 16 determines the resistance Rdut of the measurement target 15 based on the ratio of the A / D conversion value of the input voltage Vad to the A / D conversion value of the power supply voltage Vdut and the resistance R of the voltage dividing resistance 14. Calculate (step S106).
- the measuring unit 16 measures the temperature of the measuring target 15 based on the resistance Rdut of the measuring target 15 (step S108).
- FIG. 6 is a diagram for explaining a configuration related to A / D conversion of the suction device 90 according to the comparative example.
- the suction device 90 according to the comparative example includes a first battery 11, a second battery 12, an A / D converter 93, a voltage dividing resistance 14, a measurement target 15, and a measurement unit 96. ..
- the configurations of the first battery 11, the second battery 12, the voltage dividing resistance 14, and the measurement target 15 are the same as the configurations of the corresponding components in the suction device 100 according to the present embodiment shown in FIG. be. Comparing FIG. 3 and FIG. 6, in the suction device 90 according to the comparative example, the power supply voltage Vdut is not applied to the A / D converter 93.
- the A / D converter 93 outputs the A / D conversion value of the input voltage Vad at full scale based on the reference voltage VREF. Then, the measuring unit 96 measures the resistance Rdut of the measurement target 95 based on the A / D conversion value of the input voltage Vad.
- the above mathematical formula (2) and the above mathematical formula (4) can be obtained.
- the above formula (4) is transformed into the following formula.
- the measuring unit 96 calculates the resistance Rdut of the measurement target 15 based on the above mathematical formula (6). As shown in the above formula (6), in the comparative example, the influence of each fluctuation of the reference voltage VREF and the voltage VDUT appears in the calculation result of the resistance Rdut of the measurement target 15. Therefore, in the suction device 90 according to the comparative example, it is difficult to remove the influence of fluctuations in the reference voltage VREF and the power supply voltage Vdut.
- the voltage VDUT is constant and the reference voltage VREF fluctuates.
- the A / D conversion value of the input voltage Vad fluctuates.
- the reference voltage VREF is constant and the voltage VDUT fluctuates.
- the A / D conversion value of the input voltage Vad fluctuates.
- the suction device 90 according to the comparative example may erroneously supplement the fluctuation of the reference voltage VREF and the power supply voltage Vdut as the fluctuation of the resistance Rdut of the measurement target 15.
- the suction device 90 according to the comparative example may ignore the fluctuation of the resistance Rdut of the measurement target 15 that should be originally captured as the influence of the fluctuation of the reference voltage VREF and the power supply voltage Vdut.
- the suction device 100 according to the present embodiment as described above with reference to FIG. 3, the influence of fluctuations in the reference voltage VREF and the voltage VDUT is removed, and the resistance Rdut of the measurement target 15 is calculated. It becomes possible. That is, the suction device 100 according to the present embodiment can calculate the resistance Rdut of the measurement target 15 with high accuracy as compared with the suction device 90 according to the comparative example.
- the measurement target 15 may be a thermistor.
- a thermistor is a member whose electrical resistance changes significantly in response to a temperature change.
- the thermistor is arranged near the heating unit 121, for example, adjacent to the heating unit 121. In that case, the temperature of the thermistor changes according to the temperature change of the heating unit 121.
- the measuring unit 16 can measure the temperature of the thermistor based on the resistance of the thermistor, and can measure the temperature of the heating unit 121 based on the measured temperature of the thermistor.
- each device described in the present specification may be realized by using any of software, hardware, and a combination of software and hardware.
- the programs constituting the software are stored in advance in, for example, a recording medium (non-transitory media) provided inside or outside each device.
- each program is read into RAM at the time of execution by a computer controlling each device described in the present specification, and is executed by a processor such as a CPU.
- the recording medium is, for example, a magnetic disk, an optical disk, a magneto-optical disk, a flash memory, or the like.
- the above computer program may be distributed, for example, via a network without using a recording medium.
- a suction device that produces aerosols A first resistor with a given resistance, A measurement target with variable resistance, which is connected in series with the first resistor, An A / D converter that outputs the A / D conversion value of the applied voltage, and A measuring unit that measures the resistance of the measurement target based on the A / D conversion value output from the A / D converter, and a measuring unit.
- a reference voltage which is the voltage that determines the full scale of the A / D conversion value, is applied from the first power supply.
- the A / D conversion value of the first voltage applied from the second power supply different from the first power supply is output, and the A / D conversion value is output.
- the A / D conversion value of the second voltage applied to the measurement target is output from the second power source via the first resistor.
- the measuring unit has a resistance to be measured based on the ratio of the A / D conversion value of the first voltage to the A / D conversion value of the second voltage and the resistance of the first resistor.
- Suction device To calculate, Suction device.
- the measuring unit calculates the resistance of the measurement target based on the following equation and calculates the resistance.
- the A / D conversion value (Vdut) is the A / D conversion value of the first voltage
- the A / D conversion value (Vad) is the A / D conversion value of the second voltage
- R is the resistance of the first resistor
- Rdut is the resistance of the measurement target.
- the suction device according to (1) above. (3) The absolute value of the first voltage is equal to or less than the absolute value of the reference voltage. The suction device according to (1) or (2) above. (4) The suction device further includes a correction unit that corrects the absolute value of the first voltage to be equal to or less than the absolute value of the reference voltage. The suction device according to (3) above. (5) The correction unit is a second resistor having a predetermined resistance. The suction device according to (4) above. (6) The correction unit is an amplifier that attenuates the input voltage and outputs it. The suction device according to (4) above. (7) The A / D converter outputs an A / D conversion value of the first voltage applied to the first resistor from the second power source.
- the suction device according to any one of (1) to (6) above.
- the measuring unit measures the temperature of the measurement target based on the resistance of the measurement target.
- the suction device according to any one of (1) to (7) above.
- the suction device further comprises a heating unit that produces the aerosol by heating the aerosol source.
- the measurement target is the heating unit.
- the suction device according to any one of (1) to (8) above.
- the suction device is A heating unit that produces the aerosol by heating the aerosol source, A thermistor whose temperature changes according to the temperature change of the heating unit, Further prepare
- the measurement target is the thermistor.
- the suction device according to any one of (1) to (9) above.
- the power supply to the measurement target, which is performed to measure the resistance of the measurement target, is periodically executed at the first timing.
- the feeding to the heating unit, which is performed by the heating unit to heat the aerosol source, is periodically executed at a second timing different from the first timing.
- the suction device according to (9) or (10) above.
- the suction device is A first resistor with a given resistance, A measurement target with variable resistance, which is connected in series with the first resistor, An A / D converter that outputs the A / D conversion value of the applied voltage, and Equipped with To the A / D converter
- a reference voltage which is the voltage that determines the full scale of the A / D conversion value, is applied from the first power supply.
- a first voltage is applied from a second power source different from the first power source to output an A / D conversion value of the first voltage, and the first resistor is supplied from the second power source.
- a second voltage is applied to the measurement target via the method, and the A / D conversion value of the second voltage is output.
- Control method including.
- Suction device 110 Power supply unit 111 Power supply unit 112 Sensor unit 113 Notification unit 114 Storage unit 115 Communication unit 116 Control unit 120 Cartridge 121 Heating unit 122 Liquid induction unit 123 Liquid storage unit 124 Mouthpiece 130 Flavoring cartridge 131 Flavor source 140 Holding unit 141 Internal space 142 Opening 143 Bottom 144 Insulation 150 Stick type base material 151 Base material 152 Suction port 180 Air flow path 181 Air inflow hole 182 Air outflow hole 11 First battery 12 Second battery 13 A / D converter 14 Differential pressure resistance 15 Measurement target 16 Measuring unit
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Abstract
Description
吸引装置は、ユーザにより吸引される物質を生成する装置である。以下では、吸引装置により生成される物質が、エアロゾルであるものとして説明する。他に、吸引装置により生成される物質は、気体であってもよい。
図1は、吸引装置の第1の構成例を模式的に示す模式図である。図1に示すように、本構成例に係る吸引装置100Aは、電源ユニット110、カートリッジ120、及び香味付与カートリッジ130を含む。電源ユニット110は、電源部111A、センサ部112A、通知部113A、記憶部114A、通信部115A、及び制御部116Aを含む。カートリッジ120は、加熱部121A、液誘導部122、及び液貯蔵部123を含む。香味付与カートリッジ130は、香味源131、及びマウスピース124を含む。カートリッジ120及び香味付与カートリッジ130には、空気流路180が形成される。
図2は、吸引装置の第2の構成例を模式的に示す模式図である。図2に示すように、本構成例に係る吸引装置100Bは、電源部111B、センサ部112B、通知部113B、記憶部114B、通信部115B、制御部116B、加熱部121B、保持部140、及び断熱部144を含む。
(1)技術的課題
吸引装置100では、A/D変換が行われる。A/D変換に関する典型的な電源構成では、A/D変換値のフルスケールを決定するための基準電圧VREFと、被測定回路に印可される電圧VDUTとが、同一の電源から供給される。なぜならば、電源から供給される電圧に変動があった場合に、基準電圧VREFの変動に電圧VDUTが追随して変動することでトラッキング作用が働き、A/D変換値のフルスケール変動が相殺されるためである。
図3は、本実施形態に係る吸引装置100のA/D変換に関する構成を説明するための図である。図3に示すように、本実施形態に係る吸引装置100は、第1の電池11、第2の電池12、A/D(Analog to Digital)変換器13、分圧抵抗14、測定対象15、及び測定部16を含む。第1の電池11及び第2の電池12は、例えば、図1及び図2に示した電源部111に含まれる。A/D変換器13、分圧抵抗14、及び測定部16は、例えば、図1及び図2に示したセンサ部112に含まれる。
測定対象15は、温度変化に応じて電気抵抗が変化する部材である。そこで、測定部16は、測定対象15の抵抗に基づいて、測定対象15の温度を測定する。かかる構成によれば、測定対象15の温度を測定することが可能となる。
図5は、本実施形態に係る吸引装置100において実行される処理の流れの一例を示すフローチャートである。
以下、比較例を参照しながら本実施形態に係る吸引装置100の効果を説明する。
以上、添付図面を参照しながら本発明の好適な実施形態について詳細に説明したが、本発明はかかる例に限定されない。本発明の属する技術の分野における通常の知識を有する者であれば、請求の範囲に記載された技術的思想の範疇内において、各種の変更例または修正例に想到し得ることは明らかであり、これらについても、当然に本発明の技術的範囲に属するものと了解される。
(1)
エアロゾルを生成する吸引装置であって、
所定の抵抗を有する第1の抵抗器と、
前記第1の抵抗器に直列に接続される、抵抗が可変な測定対象と、
印可された電圧のA/D変換値を出力するA/D変換器と、
前記A/D変換器から出力されたA/D変換値に基づいて前記測定対象の抵抗を測定する測定部と、
を備え、
前記A/D変換器は、
A/D変換値のフルスケールを決定する電圧である基準電圧が第1の電源から印可され、
前記第1の電源とは異なる第2の電源から印可された第1の電圧のA/D変換値を出力し、
前記第2の電源から前記第1の抵抗器を経由して前記測定対象に印可された第2の電圧のA/D変換値を出力し、
前記測定部は、前記第1の電圧のA/D変換値と前記第2の電圧のA/D変換値との比、及び前記第1の抵抗器の抵抗に基づいて、前記測定対象の抵抗を計算する、
吸引装置。
(2)
前記測定部は、次式に基づいて前記測定対象の抵抗を計算し、
次式において、A/D変換値(Vdut)は前記第1の電圧のA/D変換値であり、A/D変換値(Vad)は前記第2の電圧のA/D変換値であり、Rは前記第1の抵抗器の抵抗であり、Rdutは前記測定対象の抵抗である、
前記(1)に記載の吸引装置。
前記第1の電圧の絶対値は、前記基準電圧の絶対値以下である、
前記(1)又は(2)に記載の吸引装置。
(4)
前記吸引装置は、前記第1の電圧の絶対値が前記基準電圧の絶対値以下になるよう補正する補正部をさらに備える、
前記(3)に記載の吸引装置。
(5)
前記補正部は、所定の抵抗を有する第2の抵抗器である、
前記(4)に記載の吸引装置。
(6)
前記補正部は、入力された電圧を減衰させて出力するアンプである、
前記(4)に記載の吸引装置。
(7)
前記A/D変換器は、前記第2の電源から前記第1の抵抗器に印可された前記第1の電圧のA/D変換値を出力する、
前記(1)~(6)のいずれか一項に記載の吸引装置。
(8)
前記測定部は、前記測定対象の抵抗に基づいて、前記測定対象の温度を測定する、
前記(1)~(7)のいずれか一項に記載の吸引装置。
(9)
前記吸引装置は、エアロゾル源を加熱することで前記エアロゾルを生成する加熱部をさらに備え、
前記測定対象は、前記加熱部である、
前記(1)~(8)のいずれか一項に記載の吸引装置。
(10)
前記吸引装置は、
エアロゾル源を加熱することで前記エアロゾルを生成する加熱部と、
前記加熱部の温度変化に応じて温度変化するサーミスタと、
をさらに備え、
前記測定対象は、前記サーミスタである、
前記(1)~(9)のいずれか一項に記載の吸引装置。
(11)
前記測定対象の抵抗を測定するために行われる前記測定対象への給電は第1のタイミングで周期的に実行され、
前記加熱部が前記エアロゾル源を加熱するために行われる前記加熱部への給電は、前記第1のタイミングとは異なる第2のタイミングで周期的に実行される、
前記(9)又は(10)に記載の吸引装置。
(12)
エアロゾルを生成する吸引装置を制御する制御方法であって、
前記吸引装置は、
所定の抵抗を有する第1の抵抗器と、
前記第1の抵抗器に直列に接続される、抵抗が可変な測定対象と、
印可された電圧のA/D変換値を出力するA/D変換器と、
を備え、
前記A/D変換器に、
A/D変換値のフルスケールを決定する電圧である基準電圧を第1の電源から印可し、
前記第1の電源とは異なる第2の電源から第1の電圧を印可して前記第1の電圧のA/D変換値を出力させ、及び
前記第2の電源から前記第1の抵抗器を経由して前記測定対象に第2の電圧を印可して前記第2の電圧のA/D変換値を出力させることと、
前記第1の電圧のA/D変換値と前記第2の電圧のA/D変換値との比、及び前記第1の抵抗器の抵抗に基づいて、前記測定対象の抵抗を計算することと、
を含む制御方法。
110 電源ユニット
111 電源部
112 センサ部
113 通知部
114 記憶部
115 通信部
116 制御部
120 カートリッジ
121 加熱部
122 液誘導部
123 液貯蔵部
124 マウスピース
130 香味付与カートリッジ
131 香味源
140 保持部
141 内部空間
142 開口
143 底部
144 断熱部
150 スティック型基材
151 基材部
152 吸口部
180 空気流路
181 空気流入孔
182 空気流出孔
11 第1の電池
12 第2の電池
13 A/D変換器
14 分圧抵抗
15 測定対象
16 測定部
Claims (12)
- エアロゾルを生成する吸引装置であって、
所定の抵抗を有する第1の抵抗器と、
前記第1の抵抗器に直列に接続される、抵抗が可変な測定対象と、
印可された電圧のA/D変換値を出力するA/D変換器と、
前記A/D変換器から出力されたA/D変換値に基づいて前記測定対象の抵抗を測定する測定部と、
を備え、
前記A/D変換器は、
A/D変換値のフルスケールを決定する電圧である基準電圧が第1の電源から印可され、
前記第1の電源とは異なる第2の電源から印可された第1の電圧のA/D変換値を出力し、
前記第2の電源から前記第1の抵抗器を経由して前記測定対象に印可された第2の電圧のA/D変換値を出力し、
前記測定部は、前記第1の電圧のA/D変換値と前記第2の電圧のA/D変換値との比、及び前記第1の抵抗器の抵抗に基づいて、前記測定対象の抵抗を計算する、
吸引装置。 - 前記第1の電圧の絶対値は、前記基準電圧の絶対値以下である、
請求項1又は2に記載の吸引装置。 - 前記吸引装置は、前記第1の電圧の絶対値が前記基準電圧の絶対値以下になるよう補正する補正部をさらに備える、
請求項3に記載の吸引装置。 - 前記補正部は、所定の抵抗を有する第2の抵抗器である、
請求項4に記載の吸引装置。 - 前記補正部は、入力された電圧を減衰させて出力するアンプである、
請求項4に記載の吸引装置。 - 前記A/D変換器は、前記第2の電源から前記第1の抵抗器に印可された前記第1の電圧のA/D変換値を出力する、
請求項1~6のいずれか一項に記載の吸引装置。 - 前記測定部は、前記測定対象の抵抗に基づいて、前記測定対象の温度を測定する、
請求項1~7のいずれか一項に記載の吸引装置。 - 前記吸引装置は、エアロゾル源を加熱することで前記エアロゾルを生成する加熱部をさらに備え、
前記測定対象は、前記加熱部である、
請求項1~8のいずれか一項に記載の吸引装置。 - 前記吸引装置は、
エアロゾル源を加熱することで前記エアロゾルを生成する加熱部と、
前記加熱部の温度変化に応じて温度変化するサーミスタと、
をさらに備え、
前記測定対象は、前記サーミスタである、
請求項1~9のいずれか一項に記載の吸引装置。 - 前記測定対象の抵抗を測定するために行われる前記測定対象への給電は第1のタイミングで周期的に実行され、
前記加熱部が前記エアロゾル源を加熱するために行われる前記加熱部への給電は、前記第1のタイミングとは異なる第2のタイミングで周期的に実行される、
請求項9又は10に記載の吸引装置。 - エアロゾルを生成する吸引装置を制御する制御方法であって、
前記吸引装置は、
所定の抵抗を有する第1の抵抗器と、
前記第1の抵抗器に直列に接続される、抵抗が可変な測定対象と、
印可された電圧のA/D変換値を出力するA/D変換器と、
を備え、
前記A/D変換器に、
A/D変換値のフルスケールを決定する電圧である基準電圧を第1の電源から印可し、
前記第1の電源とは異なる第2の電源から第1の電圧を印可して前記第1の電圧のA/D変換値を出力させ、及び
前記第2の電源から前記第1の抵抗器を経由して前記測定対象に第2の電圧を印可して前記第2の電圧のA/D変換値を出力させることと、
前記第1の電圧のA/D変換値と前記第2の電圧のA/D変換値との比、及び前記第1の抵抗器の抵抗に基づいて、前記測定対象の抵抗を計算することと、
を含む制御方法。
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