JP2011020024A - Sensor module and stirring device using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sensor module high in transmission efficiency, and to provide a stirring device using the sensor module. <P>SOLUTION: The sensor module includes: a sensor part for sensing at least one substance characteristic of a substance to be stirred; a transmission part for transmitting measuring information from the sensor part to a receiving part of the stirring device on radio; and a direction control means for controlling the direction of the sensor module to make the peak of a directional response pattern of the transmission part close to the receiving part. The stirring device uses the sensor module. By this invention, the receiving sensitivity of the receiving part can be enhanced and transmission efficiency can be improved. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sensor module used in a stirring device that performs concentration adjustment, chemical reaction, and the like while stirring a substance, and a stirring device using the same.

  In the conventional physicochemical reaction process, the concentration, temperature, and chemical reaction are made uniform while stirring fluids and powders with a stirrer, and various analyzes and chemical synthesis are performed.

  In this stirring apparatus, a rotor (magnetic stirrer) containing a magnetic substance and a substance to be stirred is placed in a container, and the rotor is driven to rotate (see, for example, Patent Document 1) or the container itself. There is an apparatus for rotating the container or rotating the stirring bar attached to the stirring apparatus to stir the inside of the container.

  For example, the rotor includes a sensor unit that senses characteristics such as temperature and pH of the substance to be stirred, and a transmission unit that wirelessly transmits measurement information from the sensor unit. Function.

  By putting the sensor module into the container together with the substance to be stirred in this way, there is no need to separately insert a thermometer, a pH meter, or the like. Therefore, even if a container is reduced in size, the characteristic of a substance can be measured efficiently (for example, refer to patent documents 2).

JP 59-73034 A Special Table 2007-502709

  When a conventional sensor module is used for a stirring device, the wireless transmission efficiency of the sensor module may be lowered.

  The reason is that the sensor module rotates in the stirring device and faces in a random direction. Therefore, it is difficult for the peak of the directivity pattern of the transmitter of the sensor module to coincide with the direction in which the receiver is arranged, and wireless transmission may be temporarily interrupted. As a result, the average received power in the receiving unit decreases, and the wireless transmission efficiency of the sensor module decreases.

  Therefore, an object of the present invention is to realize a sensor module with high wireless transmission efficiency and a stirring device using the same.

  In order to achieve this object, the sensor module of the present invention includes a sensor unit that senses a characteristic property of a substance, a transmission unit that wirelessly transmits information from the sensor unit, and a direction control unit that adjusts the orientation of the sensor module. When the direction of the sensor module is stabilized by this direction control means, the peak of the directivity pattern of the transmitter is directed upward or downward with respect to the horizontal axis passing through the center of the sensor module. It was.

  The stirring device of the present invention includes a sensor unit that senses at least one substance characteristic of the substance to be stirred, a transmission unit that wirelessly transmits information from the sensor unit, and a direction control unit that adjusts the orientation of the sensor module. When the direction of the sensor module is stabilized by the direction control means, the peak of the directivity pattern of the transmission unit is the sensor module. The stirring device was directed to the receiving side with respect to the horizontal axis passing through the center of the module.

  Thereby, this invention can implement | achieve the sensor module with high wireless transmission efficiency, and a stirring apparatus using the same.

  This is because the above-mentioned direction control means is provided in the sensor module.

  That is, according to the present invention, even if the sensor module is oriented in a random direction in the stirring device, the direction can be changed in a stable direction by the direction control means. Therefore, by designing the directivity pattern so that the peak of the directivity pattern faces in a predetermined direction in this stable state, it is only necessary to provide a receiving unit in this direction, so that the average received power can be increased. .

  As a result, the wireless transmission efficiency of the sensor module can be increased.

Sectional drawing of the sensor module of Embodiment 1 of this invention Schematic sectional view of the stirrer according to Embodiment 1 of the present invention. Horizontal plane pattern diagram showing directivity of the sensor module according to Embodiment 1 of the present invention (A) Sectional drawing which shows operation | movement of the sensor module of Embodiment 1 of this invention, (b) same sectional drawing Sectional drawing of the sensor module of Embodiment 2 of this invention Schematic cross-sectional view of a stirrer according to Embodiment 2 of the present invention (A) Sectional drawing which shows operation | movement of the sensor module of Embodiment 2 of this invention, (b) same sectional drawing (A) Sectional drawing which shows operation | movement of the sensor module of another example in Embodiment 2 of this invention, (b) same sectional drawing Sectional drawing of the sensor module of Embodiment 2 of this invention

(Embodiment 1)
<Rotor>
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings, taking as an example a rotor 6 having a rotating means as a sensor module. FIG. 1 is a cross-sectional view of a rotor 6 according to Embodiment 1 of the present invention. In FIG. 1, a rotor 6 supplies power to a sensor unit 1 that senses solution characteristics, a transmission unit 2 that wirelessly transmits measurement information from the sensor unit 1, and the sensor unit 1 and the transmission unit 2. A power source unit 3 and a magnetic body 4 as a rotating unit that rotates by obtaining a rotational driving force in a non-contact manner from the outside are provided. Further, the entire rotor 6 is covered with an exterior portion 5.

  Below, each structural member of the rotor 6 is demonstrated.

  The sensor unit 1 measures physical properties of substances such as solutions and particles. In the present embodiment, the solution characteristics of the solution 8, such as temperature or pH value, are measured. When measuring temperature, it is preferable to use an electrical conversion sensor such as a thermistor or a thermocouple. In addition, as an electrical conversion sensor that measures the pH value as an electrical characteristic, there is an FET element whose output voltage changes according to the ion concentration on the surface. For example, an FET element whose output voltage decreases as the pH value decreases is known. It has been. As described above, it is preferable to use a small sensor element for the sensor unit 1 from which a measured value can be extracted as an electrical output. Moreover, when measuring temperature, it is preferable to arrange | position the sensor part 1 to the surface layer part of the rotor 6, and when measuring pH concentration, it is set as the structure where the detection part of the sensor part 1 exposes. preferable.

  It is preferable that the sensor unit 1 can quickly measure the state change of the solution 8. Therefore, it is preferable to arrange a part of the region for detecting the solution characteristics of the sensor unit 1 in the vicinity of the surface layer of the rotor 6. On the other hand, when the sensor unit 1 cannot be exposed to the outside, at least two flow paths leading from the surface layer of the rotor 6 to the internal sensor unit 1 are provided, and as the rotor 6 rotates. It is preferable to adopt a structure in which the solution 8 enters / exits into the flow path. By disposing the sensor unit 1 inside the flow channel, the state change of the solution 8 flowing inside the flow channel can be measured quickly.

  Next, an electrical signal of measurement information such as temperature or pH value measured by the sensor unit 1 is sent to the transmission unit 2, where it is converted into a high-frequency signal suitable for transmission and transmitted. At this time, short-distance wireless communication technology can be applied to the transmission means, and for example, Bluetooth communication technology, infrared communication technology, or the like can be used.

  The power supply unit 3 can be an electric double layer capacitor or a small rechargeable battery. The power supply unit 3 using these devices can be charged using a non-contact charging device. In addition, a power generation element may be used as the power supply unit 3, and the rotational energy of the rotor 6 may be converted into electric energy and charged. Examples of the power generation element include a piezoelectric element and a coil.

  As in the above configuration, it is necessary to insert a measuring instrument from outside by incorporating the sensor unit 1 inside the rotor 6 and transmitting data measured by the sensor unit 1 using a short-range wireless communication technology. In addition, a stirrer that can efficiently stir or react even in a small container or a small amount of liquid can be realized. In addition, since there is no need to insert a measuring instrument from the outside, problems such as the measuring instrument hindering the rotational movement or damage to a part of the measuring instrument due to collision between the rotating part and the measuring instrument may occur. Can be avoided.

  Moreover, the magnetic body 4 for receiving a rotational driving force from the outside in a non-contact manner is provided. This magnetic body 4 is preferably built with a magnetized metal magnetic body or a metal oxide magnetic body such as barium ferrite or the like processed into a predetermined shape.

  Further, the rotor 6 has a structure in which the entire member is covered with an exterior part 5 in order to protect these built-in members from various liquids that perform stirring and / or reaction. As a material used for the exterior portion 5, a fluorine-based resin that is stable against many chemical reactions is preferable. Moreover, it is preferable that the exterior part 5 molds the whole rotor 6.

<Agitator>
Next, the stirring device using the rotor 6 will be described with reference to FIG. FIG. 2 is a cross-sectional view for explaining the concept of the stirring device according to Embodiment 1 of the present invention. This stirrer includes a rotor 6 placed in a container 7 containing a solution 8 for stirring or chemical reaction, a rotating magnet 10 for applying a rotational driving force to the rotor 6 in a non-contact manner from the outside, and a rotor 6. An antenna unit 14 and a receiving unit 15 that receive measurement information of the solution 8, a data processing unit 16 that processes received data, and a control unit 17 are provided. As shown in FIG. 2, the antenna unit 14, the receiving unit 15, the data processing unit 16, and the control unit 17 may constitute one terminal 18.

  A solution 8 for stirring or the like is placed in a container 7 for stirring or chemical reaction, and the rotor 6 shown in FIG. 1 is placed therein. As the container 7, a glass or metal container 7 is usually used. Moreover, as the solution 8 put into the container 7, a solution for stirring or chemical reaction, for example, a solution 8 containing chemicals or the like is put. The container 7 is placed on a hot plate 9 for heating or heat insulation. The hot plate 9 heats or keeps the solution 8 inside the container 7. Note that this heating method is an example, and it is possible to provide a cooling means in addition to heating to perform highly accurate temperature control.

  Further, a magnetized rotating magnet 10 is provided to transmit the rotational driving force to the rotor 6 in a non-contact manner with the hot plate 9 interposed therebetween. The rotating magnet 10 is connected to a motor 12 having a rotational driving force via a rotating shaft 11. By rotating the motor 12, the rotating magnet 10 can be rotated to a predetermined rotational speed via the rotating shaft 11, and the rotor 6 can be rotated in a non-contact manner by a magnetic field change by the rotating magnet 10. In addition, the stirring apparatus which consists of such a structure is widely called a magnetic stirrer, and can be widely used for the stirring apparatus using these principles. For example, it is also possible to use an electromagnetic coil used as an electromagnet by winding a coil around a magnet instead of the rotating magnet 10 and causing a current to flow through the coil.

  Further, the structure of the rotor 6 may be a columnar shape, a polygonal shape, or an elliptical round shape, and the rotor 6 having a predetermined shape can be appropriately designed and used.

  When the temperature of the solution 8 filled in the container 7 is to be measured, the temperature sensor 1 described with reference to FIG. In this case, the measurement data relating to the temperature transmitted from the rotor 6 is received by the antenna unit 14 on the receiving side, and the received electrical signal is transmitted to the data processing unit 16 via the receiving unit 15. In order to accumulate the measurement data relating to the transmitted temperature, for example, a memory unit (not shown) may be provided, and the measurement data may be stored in the memory unit.

  Further, the memory unit can store program software for measurement and the like, and can also be used as a control unit for automatic measurement. In addition, by appropriately examining the contents of the memory unit and configuring an optimal memory unit, it is possible to provide an apparatus capable of realizing an efficient and highly accurate measurement.

  Next, a signal related to the measured temperature is sent to the control unit 17, and when it is desired to heat to a predetermined temperature, the solution 8 can be heated by instructing the control unit 17 to pass a current through the hot plate 9.

  When measuring or controlling the pH value of the solution 8, a pH sensor is built in the sensor unit 1 of the rotor 6. The measured value measured via the built-in pH sensor is transmitted from the rotor 6, the measured data is received by the same method as described above, and the pH value of the solution 8 can be controlled via the control unit 17.

  In addition, short-range wireless communication uses a small module at a distance of several meters as a technology capable of performing data communication by using infrared communication technology, ZigBee communication technology, Bluetooth communication technology, or the like. Technology has become widespread, and it has become possible to construct a small transmission / reception system using these modules.

  This short-range wireless communication is preferably arranged at a location suitable for the reception state from the rotor 6. In the present embodiment, the transmission unit 2 of the rotor 6 is provided with a transmission antenna, and the directivity pattern peak of the transmission antenna is designed to be in the direction of arrow T as shown in FIG. Further, as shown in FIG. 1, the rotor 6 is arranged so that the magnetic body 4 is biased to either the upper part or the lower part in the rotor 6 when its long axis is placed horizontally with respect to the mounting surface. In addition, the transmission unit 2 is disposed on the other side.

  If this rotor 6 is put into the container 7, initially, for example, even if the magnetic body 4 is located at the upper part of the transmitter 2 as shown in FIG. 4A, as shown in FIG. The magnetic body 4 attracts the rotating magnet (reference numeral 10 in FIG. 2) and changes its direction so as to be closer to the rotating magnet 10, and the rotor 6 is placed on the bottom of the container 7 in this state.

  In this way, in the present embodiment, the magnetic body 4 functions as direction control means during the operation of the stirring device, and the rotor 6 is in a stable state when the magnetic body 4 is positioned below. And in this stable state, when the directivity pattern peak of the transmitting antenna is designed to face upward with respect to the horizontal axis X passing through the center P of the rotor 6 in FIG. As shown in FIG. 4B, the antenna unit 14 of the receiver unit 15 is arranged above the container or on the lid portion, thereby suppressing the disconnection of radio transmission and increasing the average received power of the antenna unit 14. be able to.

  If the magnetic body 4 is positioned on the lower side of the rotor 6 and the peak of the directivity pattern of the transmitting antenna is designed to face downward with respect to the horizontal axis X, the antenna unit 14 is placed in the container 7. , The direction of the rotor 6 can be controlled so that the T direction approaches the antenna unit 14, and the average received power of the antenna unit 14 can be increased.

  That is, in the present embodiment, by using the force that the magnetic body 4 and the rotating magnet 10 attract, the direction of the rotor 6 during the operation of the stirring device becomes stable in a predetermined direction. When this stable state is reached, the peak of the directivity pattern of the transmitting antenna is directed at least toward the antenna unit 14 with respect to the horizontal axis X of the rotor 6, so that the average received power of the antenna unit 14 can be increased. .

  Note that the peak of the directivity pattern of the transmitting antenna is preferably directed upward or downward. This is because if the antenna has directivity in the lateral direction, the receiving antenna section 14 must be arranged on the four sides of the side surface of the container 7, and a large number of antenna sections 14 are required.

  When the mass of the magnetic body 4 is large, the magnetic body 4 also functions as a weight inside the rotor 6. Therefore, by arranging the magnetic body 4 so as to be biased to one side of the rotor 6, as shown in FIG. 4 (a) due to the gravity, the magnetic body 4 is positioned from the upper side as shown in FIG. 4 (b). Then, the rotor 6 changes its direction so that the magnetic body 4 is positioned below. As described above, even when the magnetic body 4 is used as a weight, the T direction can be directed upward or downward with respect to the horizontal axis X, and can be brought closer to the direction in which the antenna unit 14 is located.

  Moreover, in this Embodiment, the electromagnetic wave which is a transmission wave is magnetized by aligning the rotor 6 up and down so that the transmission part 2 may be located on the magnetic body 4 in the container 7 during rotation of the rotor 6. Inhibition by the body 4 can be avoided.

  In addition, by using an electromagnetic induction coil for the rotating magnet 10 and forming a transformer function with the rotating magnet 10 and the magnetic body 4 of the rotor 6, electric power is supplied to the capacitor element constituting the power supply unit 3 of the rotor 6. Can be supplied. Accordingly, it is possible to configure a system that can supply electric power to the rotor 6 from the outside without contact, and a small rotor 6 can be realized. Furthermore, since electric power can be supplied constantly during stirring, it is not necessary to incorporate a battery or the like, and the rotor 6 having excellent durability can be realized.

  It is also possible to provide the terminal 18 with a display unit for displaying the measurement data. This display unit is preferably configured using a small and thin display such as liquid crystal or EL.

  As described above, the rotor 6 and the stirring device using the same in the first embodiment can efficiently perform stirring or chemical reaction even in a small container or a small amount of liquid. A rotor 6 that can be used and a stirring device using the rotor 6 can be realized.

(Embodiment 2)
<Sensor module>
Hereinafter, in the present embodiment, the sensor module 19 will be described as an example. The sensor module 19 itself has no rotating means, and is rotated in the container by the stirring means of the stirring device.

  As shown in FIG. 5, the sensor module 19 of the present embodiment includes a sensor unit 20 that senses temperature, a transmission unit 21, and a power supply unit 22, and is covered with an exterior body 23. The power supply unit 22 is a battery element sealed with metal. Charging energy to the power supply unit 22 may be supplied from the outside in a non-contact manner, and a power generation element may be further provided.

  In the sensor module 19, the power supply unit 22 has an average mass per unit volume larger than that of a region where the power supply unit 22 is not disposed, and is further biased to one side than the center P of the sensor module 19. Therefore, the center of gravity of the sensor module 19 is biased toward one side where the power supply unit 22 is disposed rather than the center P.

  The transmission unit 21 includes a transmission antenna, and the transmission antenna is designed so that the peak of the directivity pattern is in the arrow T direction.

  In the present embodiment, the sensor unit 20 is a temperature sensor, but can be applied to sensors that measure various physical properties, such as a pH sensor and an ion concentration sensor.

  Description of other configurations similar to those of the first embodiment is omitted.

<Agitator>
The stirrer of this embodiment is a stirrer that coats a liquid on the particle surface while stirring the particles.

  Hereinafter, the structure of the stirring apparatus of this Embodiment is demonstrated.

  As shown in FIG. 6, the stirring device 24 of the present embodiment is a constant temperature bath 25, a container 26 that is disposed inside the constant temperature bath 25, and contains particles, and the particles and the coating material in the container 26 are stirred. Stirring means (stirrer 27), a temperature controller 28 for adjusting the temperature in the thermostatic chamber 25, and a coating material raw material tank 30 connected to the container 26 via a pipe 29.

  In the present embodiment, the receiving unit 31 having the receiving antenna is arranged on the upper surface of the lid of the container 26. The electric signal received by the receiving unit 31 is input to the data processing unit and further transmitted to the control unit, as in the first embodiment. The control unit is connected to the temperature controller 28 and controls the temperature controller 28.

  Next, the usage method of the stirring apparatus 24 of this Embodiment is demonstrated.

  First, water is put into the thermostatic chamber 25, the temperature of the water is adjusted to a predetermined temperature, and then the particles serving as the base material are filled into the container 26. At this time, the above-described sensor module 19 is also placed in the container 26 and mixed with particles.

  Thereafter, while stirring the inside of the container 26 with the stirring bar 27, the coating material in the raw material tank 30 is poured into the container 26 and further stirred.

  At this time, the sensor unit 20 of the sensor module 19 senses the temperature in the container 26 and wirelessly transmits the signal from the transmission unit 21 to the reception unit 31 of the stirring device 24, so that the temperature inside the container 26 is contactless. Can be measured.

  And as shown in FIG. 5, the power supply part 22 of the sensor module 19 of this Embodiment functions as a weight, and the gravity center is biased to the one by which this power supply part 22 is arrange | positioned. Accordingly, even when the sensor module 19 is oriented in the container 26 of FIG. 6 as shown in FIG. 7A, the mass of the weight functions as direction control means, and the center of gravity of the sensor module 19 is positioned on the lower side. The direction is changed to a stable state (FIG. 7B).

  Therefore, as shown in FIG. 7B, when the power supply unit 22 is located at the lower part, the peak of the directivity pattern of the transmission antenna of the sensor module 19 is directed upward from the horizontal axis X passing through the center P. In addition, by arranging the receiving antenna 32 of the receiving unit 31 above the container 26, the direction of the sensor module 19 can be changed so that the direction of the arrow T approaches the receiving antenna 32. As a result, the average received power at the receiving antenna 32 can be increased.

  During the agitation operation, the sensor module 19 receives a large external force from the agitation element 27. Therefore, the orientation of the sensor module 19 cannot always be kept constant by the weight, but during such operation, In addition, the probability that the direction of the sensor module 19 is directed to the predetermined direction can be increased, and as a result, the average received power of the receiving antenna 32 can be increased.

  Furthermore, in the present embodiment, the power supply unit 22 is disposed in the direction opposite to the T direction with respect to the transmission unit 21 having the transmission antenna, and the power supply unit 22 is made of metal, so that the power supply unit 22 is reflected. It also functions as a plate, suppresses the transmission signal transmission, and can further increase the transmission efficiency.

  As shown in FIGS. 8A and 8B, the sensor module 19 may be conical. In this case, since the mass of the sensor module 19 increases as the cross-sectional area increases, it is possible to configure a weight depending on the shape. In FIG. 8A, since the center of gravity of the sensor module 19 is biased from the center P toward the larger cross-sectional area, the sensor module 19 is arranged so that the center of gravity is located downward in the container 26 as shown in FIG. Change direction. Therefore, for example, if the directivity peak of the transmission antenna is designed to face upward with respect to the horizontal axis X passing through the center P, and the reception antenna 32 is arranged upward, the reception sensitivity can be increased.

  Further, as shown in FIG. 9, even when the weight part (power supply part 22) is biased to either the left or right side of the sensor module 19, when the weight part is in a stable state, On the other hand, the peak of the directivity pattern of the transmitting antenna may be designed upward or downward.

  In the present embodiment, the power supply unit 22 is used as the weight unit, but a weight unit may be provided separately from the power supply unit 22. The power supply unit 22 may be a rechargeable battery, an electric double layer capacitor, or a power generation element such as a piezoelectric element or a coil.

  In the present embodiment, the orientation of the sensor module 19 is controlled by the weight, but the orientation may be controlled by a magnetic material. That is, a magnetic body can be arranged in each of the sensor module 19 and the container 26, and the direction of the sensor module 19 can be changed by a force that the magnetic bodies attract each other, so that a stable state can be achieved. When these magnetic materials are attracted to each other and become stable, the peak of the directivity pattern of the transmission antenna of the sensor module 19 is directed toward the reception antenna 32 from the horizontal axis X passing through the center P of the sensor module 19. By setting the directivity pattern of the transmission antenna and the position of the reception antenna 32, the wireless transmission efficiency can be increased. If the weight portion is made of a magnetic material, it can be easily recovered using the magnetic material.

  As described above, in the sensor module according to the present invention and the stirring device using the sensor module, a sensor to be measured can be built in the sensor module, and the measurement data can be received by short-range wireless communication. This makes it possible to sense physical properties with high precision and perform efficient stirring or chemical reaction even in small or small amounts of liquid, and thus can be widely applied to applications such as stirring or reaction equipment for physicochemical reactions. .

DESCRIPTION OF SYMBOLS 1 Sensor part 2 Transmission part 3 Power supply part 4 Magnetic body 5 Exterior part 6 Rotor 7 Container 8 Solution 9 Hot plate 10 Rotating magnet 11 Rotating shaft 12 Motor 14 Antenna part 15 Reception part 16 Data processing part 17 Control part 18 Terminal 19 Sensor Module 20 Sensor part 21 Transmission part 22 Power supply part 23 Exterior body 24 Stirrer 25 Constant temperature bath 26 Container 27 Stirrer 28 Temperature controller 29 Pipe 30 Raw material tank 31 Receiving part 32 Receiving antenna

Claims (10)

A sensor module used in a stirring device for stirring a substance,
This sensor module
A sensor unit that senses the characteristic properties of the substance;
A transmission unit that wirelessly transmits information from the sensor unit;
Direction control means for adjusting the orientation of the sensor module;
When the direction of the sensor module becomes stable by the direction control means, the peak of the directivity pattern of the transmitter is directed upward or downward with respect to the horizontal axis passing through the center of the sensor module. Sensor module. The sensor module according to claim 1, wherein the direction control means is a weight. The sensor module according to claim 1, wherein the direction control means is made of a magnetic material. The sensor module according to claim 1, wherein the sensor module includes a power generation element. The sensor module is
The sensor module according to claim 1, wherein the sensor module is a rotor having rotating means. The sensor module according to claim 5, wherein the rotating means is made of a magnetic material. The transmitting unit has an antenna unit,
The sensor module according to claim 6, wherein the sensor module is installed in a container that stirs a substance so that the magnetic body is positioned below the antenna unit when rotating. A stirrer comprising a container for containing a substance and stirring the substance,
A sensor module having a sensor unit that senses at least one substance characteristic of the substance to be stirred, a transmission unit that wirelessly transmits information from the sensor unit, and a direction control unit that adjusts the direction of the sensor module;
Having a receiving unit that receives a signal from the transmitting unit, and when the direction of the sensor module is stabilized by the direction control means, the peak of the directivity pattern of the transmitting unit is the center of the sensor module. The stirring device is directed to the receiving unit side with respect to a horizontal axis passing through. The stirrer according to claim 8, wherein the receiving unit is disposed on or above the container lid or on the bottom surface of the container or below the container. The sensor module is a rotor having rotating means,
The stirring device according to claim 8, further comprising a rotation driving unit that rotates the sensor module by applying a rotation driving force to the rotation unit of the sensor module from the outside without contact.

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