CN110672178B - Volume measurer - Google Patents
Volume measurer Download PDFInfo
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- CN110672178B CN110672178B CN201911055330.XA CN201911055330A CN110672178B CN 110672178 B CN110672178 B CN 110672178B CN 201911055330 A CN201911055330 A CN 201911055330A CN 110672178 B CN110672178 B CN 110672178B
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- liquid level
- level sensor
- volume
- object carrier
- supporting layer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention belongs to the technical field of solid volume measurement, and provides a volume measurer aiming at the problem that in the prior art, when the liquid level is read, artificial reading errors are easy to generate, and further the experimental data is not strict enough, wherein the volume measurer comprises: the carrying device is a hollow cylindrical body with a sealed bottom; the liquid level sensor is fixed in the object carrier and used for detecting the liquid level depth; the display is used for receiving and displaying the detection value of the liquid level sensor; the processor is electrically connected with the liquid level sensor and the display; the processor comprises a computing unit and a starting unit; the calculation unit is used for calculating the volume of the detected solid, and the volume calculation formula V of the detected solid stored in the calculation unit is (P2-P1) S/rho g. Compared with the prior art, the device of the application has no artificial reading error, and can avoid the problem of insufficient test data rigor caused by the artificial reading error.
Description
Technical Field
The invention belongs to the technical field of solid volume measurement, and particularly relates to a volume measurer.
Background
The volume measurement is often required to be carried out on an experimental sample or a product in scientific research and actual production, and the accurate measurement of the volume has a direct scale function on the rigor of experimental research and the accuracy of product production. For example: electrochemical experiments, corrosion experiments, frictional wear experiments and the like which are often performed by researchers in laboratories require accurate measurement of the volume of a sample.
In the experiment, when measuring the volume of the solid, researchers mostly use a measuring cylinder (measuring cup) to measure the volume of the solid, the solid to be measured is put into the measuring cylinder (measuring cup) filled with liquid, and the volume of the solid is calculated according to the height change of the liquid level of the measuring cylinder (measuring cup).
The method can measure not only relatively regular solids, but also irregular shaped objects. However, when the measurement method is used for reading the change of the liquid level, artificial reading errors are easy to generate, and further, the rigor of experimental data is insufficient.
Disclosure of Invention
The invention provides a volume measurer, aiming at the problem that in the prior art, when the change of a liquid level is read, artificial reading errors are easy to generate, and further the experimental data is not strict enough.
The basic scheme provided by the invention is as follows:
a volume measurer, comprising:
the carrying device is a hollow cylindrical body with a sealed bottom;
the liquid level sensor is fixed in the object carrier and used for detecting the liquid level depth;
and the display is used for receiving and displaying the detection value of the liquid level sensor.
Basic scheme theory of operation and beneficial effect:
filling liquid (such as distilled water) into the object carrier, and making the liquid level of the liquid higher than the liquid level sensor, when detecting the volume of the solid, putting the detected solid into the object carrier, wherein the detected solid is immersed in the liquid in the object carrier, and the whole liquid level of the object carrier is increased; after the liquid level in the object carrier rises, the detection value of the liquid level sensor changes; and a display electrically connected with the liquid level sensor can display the detection value of the liquid level sensor in real time.
The researchers only need to record the initial detection value before the detection solid is put in and the detection value after the liquid level of the detection solid is stabilized, and the volume of the detection solid can be calculated by combining the internal bottom area of the object carrier.
Compared with the prior art, the method has no artificial reading error, and can avoid the problem of insufficient test data rigor caused by the artificial reading error.
The liquid level sensor is electrically connected with the liquid level sensor and the display; the processor comprises a computing unit and a starting unit;
the calculation unit is used for calculating the volume of the detected solid, and the volume calculation formula V of the detected solid stored in the calculation unit is (P2-P1) S/rho g; wherein P1 is the detection value of the liquid level sensor when the starting unit is started; p2 is the value of the stable detection value of the liquid level sensor after the detection solid is put in; s is the inner bottom area of the object carrying device; ρ is the density of the liquid;
the starting unit is used for starting the processor to calculate the volume of the detected solid.
The noun explains: detect solids, i.e., scientists detect volumes of solids.
Like this, after the scientific research worker will detect the solid and put into the loader, need not calculate the data that level sensor detected and obtain, directly just can obtain the volume that detects the solid, and is more convenient, also more high-efficient simultaneously.
Further, the processor also comprises a timing unit and a recording unit; the timing unit is used for timing; the recording unit is used for screening and recording P1 and P2, detection data of the liquid level sensor is recorded as P1 when the starting unit starts, and a numerical value after the detection data of the liquid level sensor changes and stops changing for N seconds is recorded as P2.
Thus, the values of P1 and P2 can be accurately obtained, and the volume of the detected solid can be accurately obtained. The specific value of N can be specifically set by those skilled in the art according to the kind of liquid.
Further, the liquid level sensor is arranged below the supporting layer.
After the supporting layer is arranged, when the detection solid is placed in, the detection solid can be placed on the supporting layer, so that the detection solid can be prevented from contacting with the liquid level sensor or even pressing the liquid level sensor when the detection solid is placed in, the liquid level sensor is subjected to extra pressure, and the detection result is inaccurate.
Furthermore, the supporting layer is of a net structure, and the cross section of the supporting layer is the same as that of the object carrier.
By adopting the supporting layer structure, compared with other shapes, when a detection object is placed, the detection object can be directly placed, the supporting layer can support the detection solid, and the detection solid does not need to be worried to fall below the supporting layer.
Further, the device also comprises a base, wherein the bottom of the object carrier is fixed on the top surface of the base; the display and the processor are both fixed on the base.
This facilitates the mounting of the display and the processor.
Further, the liquid level sensor is fixed on the bottom surface of the object carrier.
Compared with the method that the liquid level sensor is fixed on the side wall of the object carrier, if the liquid level sensor is fixed on the side wall of the object carrier, when the liquid level sensor is loosened and the liquid level of the detected solid rises, the liquid level sensor can slightly deviate downwards due to the increase of pressure intensity, so that unnecessary errors occur in the detection result; such errors can be avoided by fixing the level sensor to the bottom surface of the carrier.
Further, the object carrier is a cylinder.
Compared with a square cylinder, the cylinder is more convenient to take.
Further, the liquid level sensor is fixed at the bottom of the object carrier by bolts.
Compared with bonding, the fixing mode is more stable.
Further, the treater is STM32 series's singlechip.
Compared with a 51-series single chip microcomputer, the STM 32-series single chip microcomputer is more powerful in operation capability, and compared with a PLC (programmable logic controller), the STM32 is lower in cost.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a volume measuring device according to the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a carrier 1, a liquid level sensor 2, a supporting layer 3, a base 4 and a display 5.
As shown in FIG. 1, the volume measuring device comprises a carrier 1, a liquid level sensor 2, a display 5, a processor, a supporting layer 3 and a base 4.
The object carrier 1 is a hollow cylinder with a sealed bottom, the liquid level sensor 2 is fixed on the inner bottom surface of the object carrier 1 by bolts, and in the embodiment, the liquid level sensor 2 is a high-precision liquid level sensor 2 of an HEL-375 model manufactured by Shanghai nationality union electric Co., Ltd. The liquid level sensor 2 of this model's accuracy is high, and error band is 0.000001Pa, can be accurate carry out liquid level detection.
Compared with the method that the liquid level sensor 2 is fixed on the side wall of the object carrier 1, if the liquid level sensor 2 is fixed on the side wall of the object carrier 1, when the liquid level sensor 2 is loosened, and the liquid level of the detected solid rises, the liquid level sensor 2 may slightly deflect downwards due to the increase of pressure intensity, so that unnecessary errors occur in the detection result; such an error can be avoided by fixing the level sensor 2 to the bottom surface of the carrier 1.
The supporting layer 3 is a circular net-shaped structure, the cross section of the supporting layer 3 is equal to the cross section of the object carrier 1, the supporting layer 3 is adhered to the inner wall of the object carrier 1, and in this embodiment, the supporting layer 3 is located at one third of the height of the object carrier 1. Such a height allows sufficient space above the support layer 3 to hold the solid when measuring the volume of the solid.
One side of the base 4 is provided with a bevel. The bottom surface of the carrier 1 is adhered to the top surface of the base 4; the processor is embedded in the side wall of the base 4 and is electrically connected with the liquid level sensor 2 and the display 5; the display 5 is fixed on the inclined plane of the base 4 by bolts, and the display 5 is used for displaying the detection value of the liquid level sensor 2 and displaying the calculation result of the processor.
In this embodiment, the processor is an STM32 series single chip microcomputer. The processor comprises a starting unit, a calculating unit, a timing unit and a recording unit.
The starting unit is used for starting the processor to calculate the volume of the detected solid.
The calculation unit is internally provided with a volume calculation formula V of the detected solid, wherein the volume calculation formula V is (P2-P1) S/rho g; wherein, P1 is the detection value of the liquid level sensor 2 when the starting unit is started; p2 is the value of the stable detection value of the liquid level sensor 2 after the detection solid is put in; s is the inner bottom area of the carrier 1; ρ is the density of the liquid. In this example, the liquid used was distilled water. The specific value of S can be determined in advance.
The timing unit is used for timing. The recording unit is used for screening and recording P1 and P2, detection data of the liquid level sensor 2 is recorded as P1 when the starting unit is started, and a numerical value after the detection data of the liquid level sensor 2 changes and stops changing for N seconds is recorded as P2.
The specific implementation process is as follows:
distilled water is filled in the carrier 1, and in this embodiment, the liquid level of the filled distilled water is two thirds of the height of the carrier 1. After the liquid level is stabilized, the starting unit is started, and at the moment, the recording unit records initial detection data P1 of the liquid level sensor 2;
afterwards, the detection solid (such as a copper block) is placed in the object carrier 1, and due to the arrangement of the supporting layer 3, the detection object can fall on the supporting layer 3, so that the condition that the detection object is contacted with or even presses the liquid level sensor 2, and the detection data of the liquid level sensor 2 is inaccurate can be avoided.
The detection solid can be submerged in the liquid after being placed in the object carrier 1, the height of the liquid level can be changed, and after the height of the liquid level is stabilized for N seconds, namely, after the detection data of the liquid level sensor 2 is stabilized for N seconds again, the recording unit can record the detection data P2 of the liquid level sensor 2 after the liquid level is stabilized again. Then, the calculation unit calculates the volume of the detected solid from the volume calculation formula V ═ S/ρ g (P2-P1) of the detected solid.
The display 5 then displays the results of the processor calculations. The scientific researchers only need to record the display result of the display 5.
Example two
Different from the first embodiment, in the first embodiment, the inner wall of the carrier is provided with eight vertical sliding grooves, the eight sliding grooves are uniformly distributed on the side wall of the carrier 1, and sliding blocks are connected in the sliding grooves in a sliding manner. The slide block is characterized by further comprising a rubber band, and two ends of the rubber band are respectively bonded with the slide block and the opening end of the object carrying device 1.
In this embodiment, the edge of the supporting layer 3 is bonded to the eight sliders, and the supporting layer 3 is slidably connected to the carrier 1 through the sliders and the sliding grooves.
Because some of the solid bodies have holes, when the carrier 1 is placed, if the gas in the holes of the solid bodies is not extruded, unnecessary errors occur in the measurement results.
By adopting the device in the embodiment, after the solid is placed in the object carrier 1 and falls on the supporting layer 3, the supporting layer 3 is pulled downwards under the action of gravity, and when the supporting layer 3 slides downwards, the rubber band is stretched; then, the rubber band can contract to further drive the supporting layer 3 to rebound upwards, and the solid is bounced upwards for a certain distance; after that, under the action of the gravity of the solid, the supporting layer 3 is again lowered, and so on until the supporting layer 3 and the solid reach a new equilibrium in the carrier 1.
In the process of the downward movement of the supporting layer 3 and the solid, the water below the supporting layer 3 can be extruded, the water below the supporting layer can be flushed upwards, the water flow speed inside the object carrying device 1 is increased, so that the gas in the solid hole is flushed out, and the gas is extruded to become bubbles to float upwards and break.
Therefore, after the solid is placed in the carrier 1, the gas in the hole can be flushed out by the water, so that the error caused by the fact that the gas in the hole of the solid is not extruded can be effectively avoided, and the detection precision is further improved.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. A volume measuring device, comprising:
the carrying device is a hollow cylindrical body with a sealed bottom;
the liquid level sensor is fixed in the object carrier and used for detecting the liquid level depth;
the display is used for receiving and displaying the detection value of the liquid level sensor;
the processor is electrically connected with the liquid level sensor and the display; the processor comprises a calculating unit, a starting unit, a timing unit and a recording unit;
the calculation unit is used for calculating the volume of the detected solid, and the volume calculation formula V of the detected solid stored in the calculation unit is (P2-P1) S/rho g; wherein P1 is the detection value of the liquid level sensor when the starting unit is started; p2 is the value of the stable detection value of the liquid level sensor after the detection solid is put in; s is the inner bottom area of the object carrying device; ρ is the density of the liquid;
the starting unit is used for starting the processor to calculate the volume of the detected solid; the timing unit is used for timing; the recording unit is used for screening and recording P1 and P2, when the starting unit is started, the detection data of the liquid level sensor is recorded as P1, and when the detection data of the liquid level sensor changes, the change stops for N seconds, and the numerical value is recorded as P2;
the inner wall of the object carrier is provided with eight vertical sliding grooves, the eight sliding grooves are uniformly distributed on the side wall of the object carrier, sliding blocks are connected in the sliding grooves in a sliding mode, the inner wall of the object carrier also comprises rubber bands, and two ends of each rubber band are respectively bonded with the sliding blocks and the opening end of the object carrier;
the supporting layer is of a net structure, and the cross section of the supporting layer is the same as that of the object carrying device; the upper part of the supporting layer is communicated with the space below the supporting layer, and the liquid level sensor is positioned below the supporting layer; the border and the eight sliders of supporting layer bond, and the supporting layer passes through slider and spout and carries thing ware sliding connection.
2. The volume measurer according to claim 1, wherein: the bottom of the object carrier is fixed on the top surface of the base; the display and the processor are both fixed on the base.
3. The volume measurer according to claim 2, wherein: the liquid level sensor is fixed on the bottom surface of the object carrier.
4. The volume measurer according to claim 3, wherein: the object carrier is a cylinder.
5. The volume measurer according to claim 4, wherein: the liquid level sensor is fixed at the bottom of the object carrier by bolts.
6. The volume measurer according to claim 5, wherein: the processor is an STM32 series single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055330.XA CN110672178B (en) | 2019-10-31 | 2019-10-31 | Volume measurer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055330.XA CN110672178B (en) | 2019-10-31 | 2019-10-31 | Volume measurer |
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| CN110672178A CN110672178A (en) | 2020-01-10 |
| CN110672178B true CN110672178B (en) | 2020-10-27 |
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| CN111366683A (en) * | 2020-03-18 | 2020-07-03 | 烟台厚旭能源科技有限责任公司 | Method for rapidly detecting stability of slurry of solid-liquid two-phase fluid |
| CN113828757B (en) * | 2021-09-13 | 2023-01-06 | 海宁哈工我耀机器人有限公司 | Method for accurately controlling quality of high-temperature molten iron in electrolytic aluminum anode casting |
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| CN2082412U (en) * | 1990-04-08 | 1991-08-07 | 中国人民解放军信息工程学院 | Intelligent measuring device for solid density |
| CN1208611C (en) * | 2003-06-11 | 2005-06-29 | 汕头大学 | Hydraulic induced volume densimeter and testing method, use thereof |
| CN2620532Y (en) * | 2003-06-11 | 2004-06-16 | 汕头大学 | Intelligent biological organ volume density meter |
| GB2510558B (en) * | 2013-01-28 | 2016-03-23 | Enevo Oy | Sensor device for smart waste collection systems |
| CN106872307A (en) * | 2015-12-14 | 2017-06-20 | 重庆丽友软件科技有限公司 | A kind of quick measurement solid-liquid density devices |
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Inventor after: Gong Yurong Inventor after: Wei Hongming Inventor after: Yang Yunqiu Inventor before: Gong Yurong Inventor before: Yang Yunqiu |
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