CN114199716A - Forest combustible water content measuring device suitable for field - Google Patents
Forest combustible water content measuring device suitable for field Download PDFInfo
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- CN114199716A CN114199716A CN202111510952.4A CN202111510952A CN114199716A CN 114199716 A CN114199716 A CN 114199716A CN 202111510952 A CN202111510952 A CN 202111510952A CN 114199716 A CN114199716 A CN 114199716A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
- G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content
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Abstract
The utility model provides a forest combustible water content measuring device suitable for it is open-air, relates to a water content measuring device. The top of the shell of the barrel is covered with a barrel cover, the bottom of the shell is provided with a bottom plate, a positioning ring is arranged in the middle of the inner wall of the shell, three pressure units are fixed on the positioning ring and support a material bearing bowl, the axis direction of each pressure unit points to the center of the material bearing bowl, each pressure unit comprises a suspended pressure sensor and a universal ball supporting the material bearing bowl, the pressure sensors measure the component force of the material bearing bowl, a counterweight weight is arranged at the center of the bottom of the material bearing bowl, an electric heating assembly is fixed around the counterweight weight, three inclination sensors are fixed on the upper surface of the bottom plate and measure the included angle between the axis of each pressure sensor and the gravity g, a control module is installed on the outer wall of the shell of the barrel and is provided with a battery and can control whether to supply power or not, a quality calculation formula is compiled and can display numerical values. The wind-proof self-adaptive gravity direction measuring device can prevent wind and self-adapt to the gravity direction, ensures the measuring precision of the field complex environment, and provides convenience for field measuring operation.
Description
Technical Field
The invention relates to a water content measuring device, in particular to a forest combustible water content measuring device suitable for the field, and belongs to the technical field of forestry sampling research.
Background
Often need carry out the measurement of moisture content to the combustible sample when developing open-air sampling activity in forestry research field, present measurement operation generally combines simple weighing device to go on through heating drying device, and the mass around the combustible sample dewatering calculates the moisture content under the certain drying temperature through the record. The simple and crude measuring form is often influenced by the environment to cause low measuring accuracy, the weighing device commonly used at present is divided into a flat plate scale and a hook scale, the flat plate scale has higher requirements on the ground, when the ground has an inclination angle, a sensor in the scale can only accurately measure the gravity component along the axis direction of the sensor, so that the quality result is often smaller than the true value, and the hook scale is easily influenced by strong wind to cause larger fluctuation of the quality result. In summary, the measurement accuracy of the moisture content of the combustible sample is not high due to the influence of the sloping field, the strong wind and the like, and therefore, a device for measuring the moisture content of the combustible sample with high measurement accuracy, which is suitable for the complex outdoor environment, is needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a forest combustible water content measuring device suitable for the field, which can prevent wind and adapt to the gravity direction, ensure the measuring precision of the field complex environment and provide convenience for the forest combustible water content measuring operation of the field.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a forest combustible material moisture content measuring device suitable for it is open-air, includes barrel casing, cover, pressure unit, inclination sensor, holds material bowl and control module, the uncovered and cover dress cover in barrel casing top, barrel casing bottom sets up bottom plate and its edge and leaves the opening, and barrel casing inner wall intermediate position sets up the holding ring along circumference, first-class angle fixed three pressure unit of arranging on the holding ring, hold the material bowl and establish for hemisphere and seat on the three pressure unit, and the equal directional centre of sphere that holds the material bowl of axis direction of three pressure unit, pressure unit including fix the spacing spout on the holding ring, fix the lower permanent magnet of bottom in the spacing spout, place in the spacing spout and with lower permanent magnet suspension complex go up the permanent magnet, fix go up the pressure sensor at permanent magnet top, fix the supporting seat at pressure sensor top and install the supporting seat top is to holding the material bowl and carry out the ten thousand that support The ball is provided with three pressure sensors for measuring component force F of the material bearing bowli( i 1, 2, 3) transmit for control module, hold material bowl bottom center and set up the counter weight and weigh, hold material bowl bottom and encircle the fixed electric heating element is weighed to the counter weight, the fixed three inclination sensor of bottom plate upper surface, just three inclination sensor arranges with three pressure unit one-to-one, and three inclination sensor is used for measuring the axis of the pressure sensor who corresponds and the contained angle theta between the gravity gi(i 1, 2, 3) transmit for control module, control module fixed mounting is on barrel shell outer wall, and control module disposes the battery and can control whether be electric heating assemblies, three pressure sensor and three inclination sensor power supply, and control module is compiled there is the quality calculation formula
And enables numerical display.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the material bearing bowl is supported by the ingenious design of the three pressure units, so that the material bearing bowl can be adaptive to the gravity direction, the three inclination angle sensors are combined, the mass calculation is carried out by the component force measured by the pressure sensors and the included angle measured by the inclination angle sensors, the influence of the terrain on the measurement result can be avoided, the measurement precision of the field complex environment is ensured, meanwhile, the adverse influence of wind in the field environment on the measurement can be effectively avoided by the cooperation of the shell of the barrel body, the barrel cover and the material bearing bowl, the combustible sample placed in the material bearing bowl is heated and dewatered by the electric heating assembly, the water content can be calculated by the mass before and after dewatering, the operation is simple and convenient, the size is small, and convenience is provided for the field combustible water content measurement operation of the forest.
Drawings
FIG. 1 is an isometric view of the overall construction of the present invention;
FIG. 2 is a partial cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the construction of the cartridge cover of the present invention;
FIG. 4 is an isometric view of the cartridge housing of the present invention;
FIG. 5 is a longitudinal cross-sectional view of the cartridge housing of the present invention;
FIG. 6 is a layout view of the pressure unit and tilt sensor of the present invention;
FIG. 7 is a schematic structural view of a pressure unit of the present invention;
FIG. 8 is a schematic structural view of a material bowl of the present invention;
fig. 9 is a circuit wiring diagram of the present invention.
Detailed Description
The technical solutions in 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 invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in figures 1-9, the forest combustible water content measuring device suitable for the field comprises a cylinder shell 1, a cylinder cover 2, a pressure unit 3, a tilt angle sensor 4, a material bearing bowl 5 and a control module 6.
Referring to fig. 1 and 4, the top of the cylinder housing 1 is open and covered with a cylinder cover 2 to protect a combustible sample from being invaded by wind and rain in a field environment in a weighing process, a bottom plate 1-1 is arranged at the bottom of the cylinder housing 1, through holes are reserved at the edge of the bottom plate, the bottom plate 1-1 is in contact with the ground in use and is also responsible for installing three inclination angle sensors 4, the through holes are used for discharging water in heating and dewatering of the combustible sample, positioning rings 1-5 are arranged at the middle position of the inner wall of the cylinder housing 1 along the circumferential direction and are used for fixing a pressure unit 3 and carrying a material bearing bowl 5, in addition, a plurality of support legs 1-2 which are distributed at equal angles are integrally arranged at the edge of the lower surface of the bottom plate 1-1, the plurality of support legs 1-2 are inserted into the bottom surface to promote stability and avoid tipping, two handles 1-3 are oppositely arranged on the outer wall of the cylinder housing 1, the outer wall of the cylinder shell 1 can be integrally provided with mounting grooves 1-4 for mounting and positioning a control module 6, so that the mounting and protection effects are achieved;
referring to fig. 2 and 5, three pressure units 3 are equidistantly arranged and fixed on the positioning rings 1-5, the material bearing bowl 5 is hemispherical and used for containing a combustible sample, the material bearing bowl 5 is arranged on the three pressure units 3, and the axial directions of the three pressure units 3 all point to the center of the sphere of the material bearing bowl 5, so that the pressure units 3 are subjected to force along the axial directions thereof, and the interference of radial force on the measurement accuracy is reduced;
as shown in fig. 3, the cylinder cover 2 can further be coaxially and rotatably provided with a shaft rod, the upper end of the shaft rod extends out of the top of the cylinder cover 2 and is fixed with a handle 2-1, and the lower end of the shaft rod extends into the material bearing bowl 5 and is fixed with a stirring blade 2-2, so that a combustible sample in the material bearing bowl 5 can be conveniently disturbed and crushed;
referring to fig. 7, the pressure unit 3 comprises a limiting chute 3-1 fixed on a positioning ring 1-5, a lower permanent magnet 3-2 fixed at the bottom in the limiting chute 3-1, an upper permanent magnet 3-3 placed in the limiting chute 3-1 and in suspension fit with the lower permanent magnet 3-2, a pressure sensor 3-4 fixed at the top of the upper permanent magnet 3-3, a support seat 3-5 fixed at the top of the pressure sensor 3-4, and a universal ball 3-6 mounted at the top of the support seat 3-5 for supporting a material bearing bowl 5, and the structure can enable the material bearing bowl 5 to freely perform centering on the center of the ball 3-5Inclined rotation, wherein three pressure sensors 3-4 are used for measuring the component force F of the material-bearing bowl 5i(i ═ 1, 2, 3) to the control module 6;
referring to fig. 8, a counterweight weight 5-1 is arranged in the center of the bottom of the material bearing bowl 5, and is matched with three universal balls 3-6 to enable the material bearing bowl 5 to be adaptive to the gravity direction, so that the axis of the material bearing bowl 5 always points to the gravity g direction in the measurement process, the influence of a sloping field in a field environment is avoided, and an electric heating assembly 5-2 is fixed at the bottom of the material bearing bowl 5 around the counterweight weight 5-1 and used for heating and dewatering a combustible sample in the material bearing bowl 5;
referring to fig. 5 to 6, three tilt angle sensors 4 are fixed on the upper surface of the bottom plate 1-1, the three tilt angle sensors 4 and the three pressure units 3 are arranged in a one-to-one correspondence manner, and the three tilt angle sensors 4 are used for measuring an included angle theta between an axis of the corresponding pressure sensor 3-4 and gravity gi(i ═ 1, 2, 3) to the control module 6;
referring to fig. 1 and 9, the control module 6 is fixedly arranged in mounting grooves 1-4 formed in the outer wall of the cylinder shell 1, the control module 6 is provided with a battery and can control whether power is supplied to the electric heating assemblies 5-2, the three pressure sensors 3-4 and the three inclination sensors 4, and a mass calculation formula is written in the control module 6
And enables numerical display.
The principle of the invention is as follows: the three pressure units 3 are arranged in a manner that the pressure sensors 3-4 are ensured to receive a component force F from the material bearing bowl 5 along the axial direction thereofiThree inclination sensors 4 simultaneously provided in correspondence with the pressure unit 3 in the vertical direction are capable of measuring the angle theta between the axis of the pressure sensors 3-4 and the gravity giThen the mass weighed
Where g is the acceleration of gravity.
When in use, the barrel shell 1 is firstly kept with the bottom plate 1-1 placed on the ground, the support legs 1-2 are inserted into the bottom surface to avoid tipping, and then the combustible materials are put into the barrel shellPutting the sample into a material bearing bowl 5, covering a cylinder cover 2, operating a control module 6 to supply power to an electric heating assembly 5-2, three pressure sensors 3-4 and three inclination angle sensors 4, reading the mass m of the combustible sample at the moment, and recording the mass m as WH(wet weight of combustible sample, i.e. initial mass of sample put into holding bowl 5, kg), while recording time, the electric heating component 5-2 continuously heating to remove water, when the mass change is less than 0.2%/min, the combustible sample is considered to be completely dehydrated, and the mass m of combustible sample at this time is read and recorded as WD(dry weight of combustible sample, namely the residual mass of the sample after drying, kg), and finally calculating the water content, wherein the calculation formula is as follows:
in this case, RMC represents the relative water content (%), and AMC represents the absolute water content (%).
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a forest combustible moisture content measuring device suitable for it is open-air which characterized in that: the automatic feeding device comprises a barrel shell (1), a barrel cover (2), pressure units (3), an inclination angle sensor (4), a material bearing bowl (5) and a control module (6), wherein the top of the barrel shell (1) is opened and the barrel cover (2) is covered, the bottom of the barrel shell (1) is provided with a bottom plate (1-1) and the edge of the bottom plate is provided with a through hole, the middle position of the inner wall of the barrel shell (1) is provided with a positioning ring (1-5) along the circumferential direction, the positioning ring (1-5) is arranged at a first equal angle to fix three pressure units (3), the material bearing bowl (5) is hemispherical and is arranged on the three pressure units (3), the axial direction of the three pressure units (3) points to the spherical center of the material bearing bowl (5), and the pressure units (3) comprise limiting sliding grooves (3-1) fixed on the positioning rings (1-5) and lower permanent magnets (3-2) fixed at the bottom of the limiting sliding grooves (3-1), An upper permanent magnet (3-3) which is placed in a limiting sliding groove (3-1) and matched with the lower permanent magnet (3-2) in a suspending way, a pressure sensor (3-4) fixed at the top of the upper permanent magnet (3-3), a supporting seat (3-5) fixed at the top of the pressure sensor (3-4) and a universal ball (3-6) which is arranged at the top of the supporting seat (3-5) and supports the material bearing bowl (5), wherein the three pressure sensors (3-4) are used for measuring the component force F of the material bearing bowl (5)i(i 1, 2, 3) transmit for control module (6), hold material bowl (5) bottom center and set up the counter weight and weigh down (5-1), hold material bowl (5) bottom and encircle the counter weight weighs down (5-1) fixed electric heating assemblies (5-2), three angular transducer (4) of fixed surface on bottom plate (1-1), just three angular transducer (4) and three pressure unit (3) one-to-one arrange, and three angular transducer (4) are used for measuring contained angle theta between axis and the gravity g of corresponding pressure sensor (3-4)i(i 1, 2, 3) transmit for control module (6), control module (6) fixed mounting is on barrel shell (1) outer wall, and control module (6) dispose the battery and can control whether be electric heating assemblies (5-2), three pressure sensor (3-4) and three inclination sensor (4) power supply, and control module (6) are compiled and are had quality calculation formula
And enables numerical display.
2. The forest combustible water content measuring device applicable to the field as claimed in claim 1, wherein: the cylinder cover (2) is coaxially and rotatably provided with a shaft lever, the upper end of the shaft lever extends out of the top of the cylinder cover (2) and is fixed with a handle (2-1), and the lower end of the shaft lever extends into the material bearing bowl (5) and is fixed with a stirring blade (2-2).
3. The forest combustible water content measuring device applicable to the field as claimed in claim 1 or 2, wherein: the lower surface edge of the bottom plate (1-1) is integrally provided with a plurality of supporting legs (1-2) which are arranged at equal angles.
4. The forest combustible water content measuring device applicable to the field as claimed in claim 1, wherein: the outer wall of the cylinder shell (1) is oppositely provided with two handles (1-3).
5. The forest combustible water content measuring device applicable to the field as claimed in claim 1, wherein: the outer wall of the cylinder shell (1) is integrally provided with mounting grooves (1-4) for mounting and positioning a control module (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510952.4A CN114199716B (en) | 2021-12-11 | 2021-12-11 | Forest combustible water content measuring device suitable for open-air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111510952.4A CN114199716B (en) | 2021-12-11 | 2021-12-11 | Forest combustible water content measuring device suitable for open-air |
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| Publication Number | Publication Date |
|---|---|
| CN114199716A true CN114199716A (en) | 2022-03-18 |
| CN114199716B CN114199716B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111510952.4A Active CN114199716B (en) | 2021-12-11 | 2021-12-11 | Forest combustible water content measuring device suitable for open-air |
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| KR101404518B1 (en) * | 2014-03-04 | 2014-06-10 | (주) 이레아이에스 | moisture content measurement apparatus of plants root area |
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| CN108489852A (en) * | 2018-03-30 | 2018-09-04 | 中国水利水电科学研究院 | A kind of field litter moisture determination device |
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| CN213239995U (en) * | 2020-11-02 | 2021-05-18 | 东北林业大学 | Simulated experiment device for flying fire |
| CN112880798A (en) * | 2021-01-20 | 2021-06-01 | 四川永联星通科技有限公司 | Combustible weight measuring device under forest |
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| CN214539085U (en) * | 2021-02-03 | 2021-10-29 | 西南林业大学 | Forest combustible water content continuous measurement device |
-
2021
- 2021-12-11 CN CN202111510952.4A patent/CN114199716B/en active Active
Patent Citations (9)
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| KR101404518B1 (en) * | 2014-03-04 | 2014-06-10 | (주) 이레아이에스 | moisture content measurement apparatus of plants root area |
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| CN108489852A (en) * | 2018-03-30 | 2018-09-04 | 中国水利水电科学研究院 | A kind of field litter moisture determination device |
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| CN209182189U (en) * | 2018-12-17 | 2019-07-30 | 河北智沃新农业发展有限公司 | A kind of rice moisture percentage measuring apparatus |
| CN213875329U (en) * | 2020-09-26 | 2021-08-03 | 中国电建集团华东勘测设计研究院有限公司 | Quick detection device of soil moisture content |
| CN213239995U (en) * | 2020-11-02 | 2021-05-18 | 东北林业大学 | Simulated experiment device for flying fire |
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