CN111637951B - Photosensitive emulsion liquid level detection device and atomization method - Google Patents
Photosensitive emulsion liquid level detection device and atomization method Download PDFInfo
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- CN111637951B CN111637951B CN202010464635.2A CN202010464635A CN111637951B CN 111637951 B CN111637951 B CN 111637951B CN 202010464635 A CN202010464635 A CN 202010464635A CN 111637951 B CN111637951 B CN 111637951B
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- 239000007788 liquid Substances 0.000 title claims abstract description 144
- 238000000889 atomisation Methods 0.000 title claims abstract description 81
- 238000001514 detection method Methods 0.000 title claims abstract description 77
- 239000000839 emulsion Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 abstract description 9
- 239000002585 base Substances 0.000 description 20
- 230000006978 adaptation Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000222 aromatherapy Methods 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000341 volatile oil Substances 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- -1 display screen Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 108700012359 toxins Proteins 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/081—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to the weight of a reservoir or container for liquid or other fluent material; responsive to level or volume of liquid or other fluent material in a reservoir or container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention provides a photosensitive emulsion liquid level detection device and an atomization method, wherein the device comprises: bottle lid, LED lamp, bottle, base, display screen, liquid level detection module. According to the invention, the corresponding liquid level information is obtained by calculation according to the resistance value change condition when the photoresistor is irradiated by the LED lamp by utilizing the different propagation loss coefficients of light in different media, so that the liquid level information of atomized liquid can be continuously measured and fed back in real time, and the rotating speed of the air pump motor can be adjusted in real time according to the liquid level information to atomize the atomized liquid at the preset target atomization rate, thereby realizing the self-adaptive adjustment of the atomization rate.
Description
Technical Field
The invention relates to the technical field of atomization devices, in particular to a photosensitive emulsion liquid level detection device and an atomization method.
Background
The atomizing device decomposes the liquid contained in the liquid container into fine water drops through the air pump and distributes the fine water drops into the surrounding environment, and the atomizing device is widely applied to daily life, such as aromatherapy machines in hotels, halls and other places.
If the liquid level detection function is not possessed to atomizing device's storage liquid container device, the container of storing liquid only can not learn the liquid level condition in time if the adoption, does not possess liquid level prompt facility, and the user can not in time add atomizing liquid, causes atomizing motor to do useless work, causes the unnecessary loss of energy, can not satisfy the requirement of green life.
Most atomizing motors of the existing atomizing devices work at fixed rotating speeds, and feedback adjustment cannot be realized according to the residual storage amount of atomized liquid. The actual atomization rate of the atomization device is affected by the operating conditions in which it is located, such as the air humidity, temperature, etc. of the external environment. If the essential oil is applied to the aromatherapy machine, because the aromatic hydrocarbon in the essential oil is low in toxicity, most of the aromatic hydrocarbon is chemically synthesized, and a lot of chemical toxins exist in the aromatic hydrocarbon, the essential oil can cause great harm to people, the concentration of volatile matters in the aroma of the aromatherapy is too high, and the long-time inhalation of the excessively concentrated aroma can be harmful to health. It is crucial to the adaptive adjustment of the atomization rate of the atomization device.
If the high-precision liquid level sensor is arranged in the atomization container, the cost is obviously increased, and in addition, the continuous detection of the liquid level cannot be realized by most of the existing low-cost liquid level detection devices.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a photosensitive emulsion liquid level detection apparatus and an atomization method, which can perform real-time liquid level detection on liquid in an atomization apparatus, and adjust an atomization rate in real time according to a liquid level condition.
In order to solve the above technical problem, an embodiment of the present invention provides a photosensitive emulsion level detection apparatus, including: the bottle comprises a bottle cap, an LED lamp, a bottle body, a base, a display screen and a liquid level detection module;
the bottle cap is provided with an opening, a support structure is arranged at the opening of the bottle cap and fixedly connected with the bottle cap, the center of the support structure is superposed with the center of the bottle cap, and the bottle cap is detachably sleeved on the top of the bottle body;
the LED lamp is arranged at one end of the support structure close to the bottle body and is positioned above the liquid level of emulsion in the bottle body;
the bottom of the bottle body is provided with a rectangular groove protruding towards the bottle cap, a photoresistor is installed in the rectangular groove, electrodes at two ends of the photoresistor are electrically connected with the liquid level detection module through leads respectively, and the photoresistor is used for feeding back a resistance value generated when the photoresistor is irradiated by the LED lamp to the liquid level detection module;
the display screen is arranged on the outer surface of the bottle body, is electrically connected with the liquid level detection module and is used for displaying emulsion liquid level information in the bottle body;
the liquid level detection module is arranged in the base, and the base is detachably sleeved at the bottom of the bottle body;
the liquid level detection module is used for detecting the liquid level of the emulsion in the bottle in real time according to the resistance value fed back by the photosensitive resistor, and adjusting the rotating speed of the air pump motor according to the liquid level detection result so as to adjust the atomization rate of the emulsion in the bottle to the target atomization rate corresponding to the liquid level detection result.
As preferred scheme, the bottle lid is cylindricly, just the bottom of bottle lid be provided with the adaptation in bottle open-ended annular ladder groove, annular ladder groove is close to the internal diameter of the cylinder ring of bottle opening one side is greater than annular ladder groove is kept away from the internal diameter of cylinder ring of bottle opening one side, the great cylinder ring distance of internal diameter highly be greater than the less cylinder ring distance of internal diameter at bottle lid top the height at bottle lid top.
Preferably, the support structure is connected with the inner wall of the cylindrical ring with the smaller inner diameter through three support rods, the included angle between any two adjacent support rods in the three support rods is 120 degrees, and a tubular cylindrical through hole for connecting the LED lamp is arranged in the center where the three support rods meet.
According to the preferable scheme, one side of the bottle body is provided with an opening, the opening of the bottle body is provided with a stepped cylindrical wall surface matched with the annular stepped groove of the bottle cap, and the other side of the bottle body is provided with a stepped cylindrical wall surface matched with the annular stepped groove of the base.
As preferred scheme, the base is cylindricly, one side of base be provided with the annular ladder groove of the ladder cylinder wall looks adaptation of bottle, the base is inside to have and to be used for the installation the chamber that holds of liquid level detection module, be equipped with shift knob, power input interface and signal output interface on the surface of base.
Preferably, the bottle cap and the bottle body and the base are detachably connected through threads.
Preferably, the liquid level detection module detects the resistance value of the photoresistor through an alternating current bridge.
In order to solve the same technical problem, the invention also provides an atomization method of any one of the photosensitive emulsion level detection devices, which comprises the following steps:
obtaining a first liquid level in the bottle body;
if the first liquid level is not zero, adjusting the rotating speed of an air pump motor according to a preset atomization rate to carry out atomization;
acquiring a second liquid level in the bottle body according to a preset time interval, and calculating the actual atomization rate according to the liquid level difference between the first liquid level and the second liquid level and the time interval;
comparing the actual atomization rate with the preset atomization rate, and adjusting the rotating speed of an air pump motor according to the comparison result so as to atomize the atomized liquid in the bottle body according to the preset atomization rate;
and if the first liquid level is zero, controlling the air pump motor to stop working, and feeding back atomized liquid adding reminding information through the display screen and the alarm.
Compared with the prior art, the invention has the following beneficial effects:
the embodiment of the invention provides a photosensitive emulsion liquid level detection device and an atomization method, wherein the device comprises: bottle lid, LED lamp, bottle, base, display screen, liquid level detection module. According to the invention, the corresponding liquid level information is obtained by calculation according to the resistance value change condition when the photoresistor is irradiated by the LED lamp by utilizing the different propagation loss coefficients of light in different media, so that the liquid level information of atomized liquid can be continuously measured and fed back in real time, and the rotating speed of the air pump motor can be adjusted in real time according to the liquid level information to atomize the atomized liquid at the preset target atomization rate, thereby realizing the self-adaptive adjustment of the atomization rate.
Drawings
FIG. 1 is a schematic structural diagram of a photosensitive emulsion level detection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic internal view of a photosensitive emulsion level detection apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of a photosensitive emulsion level detection apparatus A according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a photosensitive emulsion level detection apparatus B according to an embodiment of the present invention;
FIG. 5 is a schematic view of the structure of a photosensitive emulsion level detecting apparatus C according to an embodiment of the present invention;
FIG. 6 is a block diagram of a photosensitive emulsion level detection apparatus according to an embodiment of the present invention;
FIG. 7 is a schematic flow chart of a method for atomizing a photosensitive emulsion level detection apparatus according to an embodiment of the present invention;
wherein the reference numerals are as follows:
1-through hole, 2-LED lamp, 3-display screen, 4-liquid level detection module, 5-output port, 6-power input port, 7-switch button, 8-base, 9-lead, 10-bottle body, 11-bottle cap, 12-supporting structure, 13-metal electrode, 14-photoresistor, 15-pin, 16-detection circuit, 201-display module, 202-liquid level detection unit, 203-emulsion container, 204-air pump motor, 205-regulation module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention provides a photosensitive emulsion level detection apparatus, including: the LED liquid level detection device comprises a bottle cap 11, an LED lamp 2, a bottle body 10, a base 8, a display screen 3 and a liquid level detection module 4;
the bottle cap 11 is provided with an opening, a support structure is arranged at the opening of the bottle cap 11 and fixedly connected with the bottle cap 11, the center of the support structure is superposed with the center of the bottle cap 11, and the bottle cap 11 is detachably sleeved on the top of the bottle body 10;
the LED lamp 2 is arranged at one end of the support structure close to the bottle body 10, and the LED lamp 2 is positioned above the liquid level of emulsion in the bottle body 10;
a rectangular groove protruding towards the bottle cap 11 is formed in the bottom of the bottle body 10, a photosensitive resistor 14 is installed in the rectangular groove, electrodes at two ends of the photosensitive resistor 14 are electrically connected with the liquid level detection module 4 through leads 9 respectively, and the photosensitive resistor 14 is used for feeding back a resistance value generated when the LED lamp 2 irradiates the liquid level detection module 4;
the display screen 3 is arranged on the outer surface of the bottle body 10, the display screen 3 is electrically connected with the liquid level detection module 4, and the display screen 3 is used for displaying the liquid level information of the emulsion in the bottle body 10;
the liquid level detection module 4 is arranged in the base 8, and the base 8 is detachably sleeved at the bottom of the bottle body 10;
the liquid level detection module 4 is used for detecting the liquid level of the emulsion in the bottle body 10 in real time according to the resistance value fed back by the photosensitive resistor 14, and adjusting the rotating speed of the air pump motor according to the liquid level detection result so as to adjust the atomization rate of the emulsion in the bottle body 10 to the target atomization rate corresponding to the liquid level detection result.
As preferred scheme, bottle lid 11 is cylindricly, just the bottom of bottle lid 11 be provided with the adaptation in bottle 10 open-ended annular ladder groove, annular ladder groove is close to the internal diameter of the cylinder ring of bottle 10 opening one side is greater than annular ladder groove is kept away from the internal diameter of bottle 10 opening one side cylinder ring, the great cylinder ring distance of internal diameter the height at 11 tops of bottle lid is greater than the less cylinder ring distance of internal diameter the height at 11 tops of bottle lid.
As a preferred scheme, the support structure is connected with the inner wall of the cylindrical ring with the smaller inner diameter through three support rods, the included angle between any two adjacent support rods in the three support rods is 120 degrees, and a tubular cylindrical through hole for connecting the LED lamp 2 is arranged at the center where the three support rods meet.
In the embodiment of the invention, the inner side of the cylindrical ring with the smaller inner diameter of the bottle cap 11 is provided with a herringbone three-support-rod structure support, the length of each support rod is the same as the radius of an inner hole of the outer ring of the circular ring, and the three support rods are arranged at equal intervals along the circumferential direction, namely, the interval between any two adjacent support rods is 120 degrees. The intersection center position of three bracing pieces is provided with the tubular structure, is provided with through-hole 1 of fixed LED lamp 2 in the tubular structure. In this embodiment, after the LED lamp 2 passes through the through hole 1 at the center intersection of the v-shaped support structure 12 of the bottle cap 11, the pin 15 is used to position and fix the LED lamp 2.
In the embodiment of the present invention, the bottle body 10 is made of a material having a strong light-shielding property, and light-shielding high density polyethylene HDPE, which is a semitransparent material having a high crystallinity and a non-polar surface to a certain extent, has good heat resistance and cold resistance, and has good chemical stability, high rigidity and toughness, and good mechanical strength. The dielectric property and the environmental stress cracking resistance are also better. The hardness, tensile strength and creep property are better than those of low-density polyethylene; the wear resistance, the electrical insulation, the toughness and the cold resistance are all good; the chemical stability is good, and the paint is insoluble in any organic solvent and resistant to corrosion of acid, alkali and various salts at room temperature. The bottom of the bottle body 10 is provided with a rectangular groove protruding inwards for installing and fixing the photosensitive resistor 14, two ends of the rectangular groove are respectively provided with a metal electrode 13, the metal electrodes 13 are respectively welded with a lead 9, and the lead penetrates through the bottom of the bottle body 10 to be connected into the liquid level detection module 4. The gap between the electrode and the bottom of the bottle 10 can be sealed and adhered by epoxy AB glue.
Preferably, an opening is formed in one side of the bottle body 10, a stepped cylindrical wall surface adapted to the annular stepped groove of the bottle cap 11 is formed in the opening of the bottle body 10, and a stepped cylindrical wall surface adapted to the annular stepped groove of the base 8 is formed in the other side of the bottle body 10.
As preferred scheme, base 8 is cylindricly, one side of base 8 be provided with the annular ladder groove of the ladder cylinder wall looks adaptation of bottle 10, base 8 is inside to have and to be used for the installation liquid level detection module 4 holds the chamber, be equipped with shift knob 7, power input interface and signal output interface on base 8's the surface.
Preferably, the bottle cap 11 and the bottle body 10, and the bottle body 10 and the base 8 are detachably connected by threads.
Preferably, the liquid level detection module 4 detects the resistance value of the light-sensitive resistor 14 through an ac bridge.
In the photosensitive emulsion liquid level detection device provided by the invention, the ratio of the air to the medium of the emulsion in the path of the light-emitting diode (LED) lamp 2 irradiating the photoresistor 14 changes with the change of the liquid level, and finally the resistance of the photoresistor 14 changes with the change of the liquid level, so that the liquid level can be continuously measured in real time. In this embodiment, the distance between the LED lamp 2 and the photo resistor 14 is a + b, the LED lamp 2 irradiates the path of the photo resistor 14, and the air accounts for the ratio of
The proportion of the emulsion is
The total energy of the LED lamp 2 irradiated on the photo resistor 14 is Σ, regardless of the light propagation loss. In fact, light rays are transmitted in the medium with loss, and the transmission loss coefficient of the LED lamp 2 in the air medium is lambda1The propagation loss coefficient in the emulsion medium is lambda2Therefore, the actual energy of the LED lamp 2 to the photo resistor 14 is
Through experiments, establish
The matching relationship of (a) and (b) is constant, so that a ∑ can be obtainedFruit of Chinese wolfberryMatching relation of-b ". According to the characteristic that the resistance value of the photoresistor 14 changes along with the change of the intensity of incident light (visible light), sigma is establishedFruit of Chinese wolfberryAnd matching relation of the R to obtain matching relation of the b and the R.
In the embodiment, the detection circuit 16 of the photosensitive emulsion liquid level detection device adopts the ac bridge to detect the resistance of the photosensitive resistor 14, because the photosensitive resistor 14 and the metal electrode 13 thereof are exposed in the emulsion environment for a long time, the polarization phenomenon is easy to occur after the direct current is supplied, and the resistance of the photosensitive resistor 14 is measured by adopting the ac bridge to avoid the polarization phenomenon from influencing the resistance change, so that the measured liquid level is more reliable and accurate. In the detection circuit 16, the detection voltage is set to UeThe resistance across the photo-resistor 14 is RxSo as to output voltage
R varies with the level of the emulsionxWill change and have a certain regularity, wherein the detection voltage UeConstant, resistance R1，R2，R3All are constant values, so that R isxWhen the change with a certain rule occurs, the voltage U is output0Changes with certain regularity can also follow. According to the matching relation of b-R, the liquid level b-output voltage U is established under the actual working condition0"matching mechanism.
Referring to fig. 6, it can be understood that the present invention provides a photosensitive emulsion level detection apparatus, which comprises five parts, a display module 201, a level detection unit 202, an emulsion container 203, an air pump motor 204 and a regulation module 205. The liquid level detection unit 202 is used for detecting the emulsion remaining amount of the emulsion container 203, and then, on one hand, the air pump motor 204 is adjusted to operate at a preset atomization rate through the adjustment module 205, and on the other hand, the liquid level height and related attribute parameters thereof are displayed on the display screen 3 through the display module 201.
In order to solve the same technical problem, the invention also provides an atomization method of any one of the photosensitive emulsion level detection devices, which comprises the following steps:
acquiring a first liquid level in the bottle 10;
if the first liquid level is not zero, adjusting the rotating speed of an air pump motor according to a preset atomization rate to carry out atomization;
acquiring a second liquid level in the bottle body 10 according to a preset time interval, and calculating an actual atomization rate according to the liquid level difference between the first liquid level and the second liquid level and the time interval;
comparing the actual atomization rate with the preset atomization rate, and adjusting the rotating speed of an air pump motor according to the comparison result so as to atomize the atomized liquid in the bottle body 10 according to the preset atomization rate;
if the first liquid level is zero, controlling the air pump motor to stop working, and feeding back atomized liquid adding reminding information through the display screen 3 and the alarm.
It should be noted that the above method or flow embodiment is described as a series of acts or combinations for simplicity, but those skilled in the art should understand that the present invention is not limited by the described acts or sequences, as some steps may be performed in other sequences or simultaneously according to the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are exemplary embodiments and that no single embodiment is necessarily required by the inventive embodiments.
Referring to fig. 7, based on the above solution, in order to better understand the atomization method of the photosensitive emulsion level detection apparatus provided in the embodiment of the present invention, the following embodiments are specifically illustrated:
the preset atomization rate can be automatically modified according to the requirements of users or the environmental requirements of the atomization device, so as to meet the requirements of different users and achieve the most appropriate control effect.
the liquid level of the turbid liquid in the bottle at the beginning of atomization is obtained by the liquid level detection system and is used as a first liquid level.
according to the atomization rate set by the user, the system automatically matches the corresponding rotating speed of the air pump motor, and the rotating speed of the air pump motor can achieve the purpose by controlling the driving voltage of the motor.
and setting a certain atomization time interval, and reading the liquid level of the emulsion in the bottle at the moment as a second liquid level. The atomization time interval may be set to 1s, 2s, 3s, 4s, the size of the atomization time interval determines that the total actual atomization time is closer to the preset atomization time, the shorter the atomization time interval is, the closer to the preset atomization time is, but the more calculation amount of the required program is, the more appropriate atomization time interval should be selected. In the embodiment of the present invention, the atomization time interval is set to 5 s.
the actual atomization rate is calculated as the difference between the first and second levels divided by the time it takes for the level of the emulsion in the bottle to atomize from the first level to the second level, i.e. the set atomization interval.
if the actual atomization rate is greater than the preset atomization rate, reducing the driving voltage of the air pump motor; if the actual atomization rate is smaller than the preset atomization rate, the driving voltage of the air pump motor is increased. And when the driving voltage is adjusted again, continuing atomization.
Then, steps 302 to 307 are repeated in sequence until the atomization is completed.
The working process of the embodiment of the invention is as follows: firstly, insert the power cord at power input port 6, output port 5 connects the air pump motor, starts shift knob 7, and atomizing device begins the atomizing, and the air pump motor mixes the liquid in the bottle together with the pumping to external environment in the air, relies on closed-loop control to make atomizing device actual atomization rate remain throughout and predetermine atomization rate and atomize.
To sum up, according to the photosensitive emulsion liquid level detection device and the atomization method provided by the embodiment of the invention, by utilizing the difference of the propagation loss coefficients of light in different media, when the liquid level in the bottle changes, the ratio of air to the medium of the liquid in the path of the photoresistor 14 irradiated by the LED lamp 2 changes, and finally the resistance of the photoresistor 14 changes along with the change of the liquid level, so that the liquid level can be continuously measured in real time, and the air pump motor is adjusted to atomize according to the preset atomization rate. The liquid level detection device is simple in structure and low in cost, and can realize more reliable and accurate continuity detection of the liquid level.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (8)
1. A photosensitive emulsion level detection device, comprising: the bottle comprises a bottle cap, an LED lamp, a bottle body, a base, a display screen and a liquid level detection module;
the bottle cap is provided with an opening, a support structure is arranged at the opening of the bottle cap and fixedly connected with the bottle cap, the center of the support structure is superposed with the center of the bottle cap, and the bottle cap is detachably sleeved on the top of the bottle body;
the LED lamp is arranged at one end of the support structure close to the bottle body and is positioned above the liquid level of emulsion in the bottle body;
the bottom of the bottle body is provided with a rectangular groove protruding towards the bottle cap, a photoresistor is installed in the rectangular groove, electrodes at two ends of the photoresistor are electrically connected with the liquid level detection module through leads respectively, and the photoresistor is used for feeding back a resistance value generated when the photoresistor is irradiated by the LED lamp to the liquid level detection module;
the display screen is arranged on the outer surface of the bottle body, is electrically connected with the liquid level detection module and is used for displaying emulsion liquid level information in the bottle body;
the liquid level detection module is arranged in the base, and the base is detachably sleeved at the bottom of the bottle body;
the liquid level detection module is used for detecting the liquid level of the emulsion in the bottle body in real time according to the resistance value fed back by the photosensitive resistor and the matching relation between the resistance value and the liquid level, and adjusting the rotating speed of the air pump motor according to the liquid level detection result so as to adjust the atomization rate of the emulsion in the bottle body to a target atomization rate corresponding to the liquid level detection result; the method for determining the matching relation between the resistance value and the liquid level comprises the following steps: the distance between the LED lamp and the photoresistor, the proportion of air on the path from the LED lamp to the photoresistor, the propagation loss coefficient of the LED lamp in the air medium, the propagation loss coefficient of the LED lamp in the emulsion medium, the proportion of emulsion on the path from the LED lamp to the photoresistor and the total energy from the LED lamp to the photoresistor are calculated, and the actual energy from the LED lamp to the photoresistor is calculated; constructing a matching relation between actual energy and liquid level; constructing a matching relation between actual energy and resistance; and determining the matching relation between the resistance value and the liquid level according to the matching relation between the actual energy and the liquid level and the matching relation between the actual energy and the resistance value.
2. The photosensitive emulsion liquid level detection device of claim 1, wherein the bottle cap is cylindrical, and the bottom of the bottle cap is provided with an annular stepped groove adapted to the bottle opening, the inner diameter of the annular stepped groove close to the cylindrical ring on one side of the bottle opening is larger than the inner diameter of the cylindrical ring on one side of the bottle opening, the cylindrical ring with the larger inner diameter is away from the cylindrical ring on one side of the bottle opening, and the cylindrical ring with the larger inner diameter is away from the cylindrical ring with the smaller inner diameter at the top of the bottle cap.
3. The photosensitive emulsion liquid level detection device of claim 2, wherein the bracket structure is connected to the inner wall of the cylindrical ring with a smaller inner diameter through three support rods, the included angle between any two adjacent support rods is 120 °, and a tubular cylindrical through hole for connecting the LED lamp is arranged at the center of the intersection of the three support rods.
4. The photosensitive emulsion liquid level detection device according to claim 3, wherein an opening is formed in one side of the bottle body, a stepped cylindrical wall surface matched with the annular stepped groove of the bottle cap is formed in the opening of the bottle body, and a stepped cylindrical wall surface matched with the annular stepped groove of the base is formed in the other side of the bottle body.
5. The photosensitive emulsion liquid level detection device of claim 4, wherein the base is cylindrical, one side of the base is provided with an annular stepped groove adapted to the stepped cylindrical wall surface of the bottle body, the base is internally provided with a containing cavity for installing the liquid level detection module, and the outer surface of the base is provided with a switch button, a power input interface and a signal output interface.
6. The photosensitive emulsion liquid level detection apparatus of claim 1, wherein the bottle cap and the bottle body and the base are detachably connected by threads.
7. The apparatus of claim 1, wherein the level detection module detects the resistance of the photo resistor via an ac bridge.
8. A method for atomizing a photosensitive emulsion level detecting device according to any one of claims 1 to 7, comprising:
obtaining a first liquid level in the bottle body;
if the first liquid level is not zero, adjusting the rotating speed of an air pump motor according to a preset atomization rate to carry out atomization;
acquiring a second liquid level in the bottle body according to a preset time interval, and calculating the actual atomization rate according to the liquid level difference between the first liquid level and the second liquid level and the time interval;
comparing the actual atomization rate with the preset atomization rate, and adjusting the rotating speed of an air pump motor according to the comparison result so as to atomize the atomized liquid in the bottle body according to the preset atomization rate;
and if the first liquid level is zero, controlling the air pump motor to stop working, and feeding back atomized liquid adding reminding information through the display screen and the alarm.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201233264Y (en) * | 2008-07-16 | 2009-05-06 | 重庆大学 | Liquid level sensor with thermister probe and liquid level measuring set thereof |
| CN107952100A (en) * | 2017-11-17 | 2018-04-24 | 深圳市邻友通科技发展有限公司 | A kind of atomizer and its control method |
| CN108917877A (en) * | 2018-08-10 | 2018-11-30 | 温州市人民医院 | A kind of urine detector |
| CN110986376A (en) * | 2019-12-09 | 2020-04-10 | 珠海格力电器股份有限公司 | Condensate detection device and method |
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| BR102013006794B1 (en) * | 2013-03-25 | 2022-11-01 | Luxtec - Sistemas Ópticos Ltda - Me | MULTIPARAMETRIC DEVICE FOR MEASURING, BY OPTICAL MEANS, THE FILLING LEVEL OF TANKS AND RESERVOIRS FOR LIQUIDS AND LIQUEFIEDS, REFRACTIVE INDEX AND IMAGE ANALYSIS, WITHOUT MOVING PARTS |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201233264Y (en) * | 2008-07-16 | 2009-05-06 | 重庆大学 | Liquid level sensor with thermister probe and liquid level measuring set thereof |
| CN107952100A (en) * | 2017-11-17 | 2018-04-24 | 深圳市邻友通科技发展有限公司 | A kind of atomizer and its control method |
| CN108917877A (en) * | 2018-08-10 | 2018-11-30 | 温州市人民医院 | A kind of urine detector |
| CN110986376A (en) * | 2019-12-09 | 2020-04-10 | 珠海格力电器股份有限公司 | Condensate detection device and method |
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