CN2752771Y - Multi-functional moisture check meter - Google Patents

Multi-functional moisture check meter Download PDF

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Publication number
CN2752771Y
CN2752771Y CN 200420065595 CN200420065595U CN2752771Y CN 2752771 Y CN2752771 Y CN 2752771Y CN 200420065595 CN200420065595 CN 200420065595 CN 200420065595 U CN200420065595 U CN 200420065595U CN 2752771 Y CN2752771 Y CN 2752771Y
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China
Prior art keywords
pole plate
moisture
high frequency
circuit board
housing
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CN 200420065595
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Chinese (zh)
Inventor
吴军港
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SANSHENG AGRICULTURAL MACHINERY SCIENCE AND TECHNOLOGY CO Ltd
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SANSHENG AGRICULTURAL MACHINERY SCIENCE AND TECHNOLOGY CO Ltd
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Abstract

The utility model relates to a nondestructive multifunctional moisture tester which is used for testing the moisture content of tested objects by being arranged on drying equipment or a test box. The utility model has the guiding moisture percentage set-up function. The utility model comprises a housing, a containing space arranged in the housing, a circuit board arranged in the containing space, a temperature compensation and temperature sensing rod, at least one emitting pole plate, at least one receiving pole plate and a control unit which is coupled on the circuit board, wherein one end of the temperature compensation and temperature sensing rod is connected with the circuit board, and the other end of the temperature compensation and temperature sensing rod is projected out of the housing. High frequency waves are sent out through the emitting pole plate and received by the receiving pole plate. High frequency wave signals received by the receiving pole plate are transferred to the control unit through an identification circuit board. The moisture content value can be reckon up by the control unit according to received high frequency wave signals and tested temperature value, so the drying action of drying equipment can be controlled or the moisture percentage value can be displayed.

Description

Multi-purpose water content check meter
Technical field
The utility model relates to a kind of nondestructive multi-purpose water content tester, relates in particular on a kind of drying equipment that is applicable to graininess such as cereal, sandstone or particles or liquid object, to measure the moisture check of its moisture content value.
Background technology
General crops suchs as grain etc. all need elder generation through super-dry after gathering, and just can carry out the storage of long period and preserve.At present, use stove to produce hot blast and come the drying equipment of dried grain extensively to be used, yet, in the process of drying, need not timing simultaneously or routinely check the water cut of cereal.So just can avoid the dry deficiency of cereal to cause mouldy addling or the dry excess waste energy.
Now, being widely used in the grain moisture content check system of agricultural community most, is to adopt so-called cal rolling formula moisture check system.It mainly is transmission and the rolling body of forming by gear, belt, motor, screw rod, roller, with mechanical component such as bearing.Mechanism pulverizes cereal, squeeze whereby, applies its resistance value of voltage measurement again, and then goes out the grain moisture content value according to this resistance value calculation.But this known grain moisture check system has following shortcoming:
(1) is destructive test; In checkout procedure, need pulverize, squeeze cereal, be taken as the cereal of check sample, cause waste in case after being pulverized destruction, just need throw aside.
(2) be intermittent check; In continuity or circulating cereal dry run, the mensuration of grain moisture content needs to take out sample in intermittent mode and detects, and is not only inconvenient and can't obtain the cereal dry condition of (Real-Time) in real time.
(3) easily break down; Too much transmission, mechanical component such as roll, cause the rising of failure rate.
(4) versatility is poor; Owing to transmission, mechanical component such as roll and need demands such as size, hardness to design at different crops, so the mechanical expression formula moisture check system of different crops need design different mechanical components, still more, if design is used for checking the mechanical expression equipment of grain moisture value, can't directly change and be used for for example determination of moisture work of other non-agricultural product such as sandstone or particles, so versatility is relatively poor.
(5) can't cooperate the drying equipment action; Existing mechanical expression formula moisture check system only can be carried out the detection of water cut separately, measurement result can not be fed back to the control that drying equipment carries out the drying action of robotization.
(6) sensing range is narrower; Tradition is measured the mode of water cut with resistance value, its only in the scope in a specified moisture content interval (about 12-22%) can obtain measured value more accurately, exceed that measured value outside this interval will have than the mistake amount and unactual.
Summary of the invention
The purpose of this utility model, be to provide a kind of nondestructive multi-purpose water content tester, can have that non-destructive measuring ability, sustainability detect, failure rate is low, purposes is many and versatility is high, can cooperate the action of control drying equipment, can have guiding water percentage set-up function and be applicable to than the detection of water content ranges greatly.
For realizing above-mentioned purpose, the utility model provides a kind of nondestructive multi-purpose water content tester, this moisture check meter be device on a drying equipment the earnest to be measured of its inside is carried out the check of moisture.Moisture check meter comprise by housing, circuit board, temperature compensation sensing rod for temperature, emission pole plate, receive pole plate, and control module formed.Send high frequency waves by the emission pole plate and pass determined object and receive, be tested and appraised circuit board again the high frequency waves signal that receives is sent to control module by receiving pole plate.Control module then calculates moisture content value according to received high frequency waves signal and the measured temperature value of temperature compensation sensing rod for temperature, and and then according to the drying action of this moisture content value control drying equipment.
A kind of nondestructive multi-purpose water content tester can install one and need carry out on the equipment of water content detection to carry out the work for inspection to the moisture of thing to be determined, and this moisture check meter comprises at least:
One housing has an accommodation space in it;
One circuit board is placed in this accommodation space, and design has the circuit that can carry out sensing temperature, produce high frequency waves and receive high frequency waves at least on circuit board;
One temperature compensation sensing rod for temperature, the one end is connected on the circuit board, and the other end then protrudes in outside the housing, can carry out the sensing of temperature value;
At least one emission pole plate, one end be connected on the circuit board and by housing one pleurapophysis for outside the housing, the emission pole plate be coupled on this circuit that can produce high frequency waves, make high frequency waves can through the emission pole plate launch;
At least one reception pole plate, protrude in outside the housing and with the emission pole plate at a distance of an appropriate intervals, receive pole plate and be coupled in the circuit that this can receive high frequency waves, make the emission high frequency waves that pole plate sent to be received pole plate and receive, and be the high frequency waves signal by the circuit conversion of these reception high frequency waves; And,
One control module, be coupled in circuit board, high frequency waves signal that the reception pole plate is received and temperature compensation sensing rod for temperature institute sensed temperature value all can be sent to control module through circuit board, and calculate corresponding moisture content value by control module according to this high frequency waves signal and in conjunction with temperature value.
Wherein, this emission pole plate is a fin shape structure, and has an inclined side at the upside of emission pole plate;
One side of this housing is open shape and is an open sides, make circuit board put into accommodation space through this open sides, the reception pole plate is the cover plate shape, and it can cover the open sides of housing just, on the reception pole plate, be provided with and comprise an opening and at least one fin, the position of opening and shape are to cooperate the emission pole plate for its protruding reception pole plate that passes, fin protrude out direction be matched with the emission pole plate and with the emission pole plate suitable distance of being separated by.
Described nondestructive multi-purpose water content tester, wherein, described fin is greater than the emission pole plate, and has inclined side at the upside of fin.
Described nondestructive multi-purpose water content tester, wherein, also comprise an insulcrete, it is receiving between pole plate and the circuit board, position corresponding to the emission pole plate on insulcrete is provided with a fluting for the protruding insulcrete that passes of emission pole plate, the periphery of fluting is provided with chimb, and it can be placed between the opening and emission pole plate that receives pole plate just, contacts with the reception pole plate to avoid launching pole plate.
Described nondestructive multi-purpose water content tester wherein, also is provided with on the control module and includes a display unit, and it shows this sensed temperature value and moisture content value at least.
Described nondestructive multi-purpose water content tester, wherein, the machinery and equipment that described needs carry out water content detection is a drying equipment, it can carry out drying work to this earnest to be measured;
This control module is connected on this drying equipment, can control the drying action of drying equipment according to the detected moisture content value of moisture check meter.
Described nondestructive multi-purpose water content tester, wherein, the action of the drying of drying equipment that control module is controlled comprises:
When moisture content value is higher than one first predetermined moisture value, then continue the drying action of drying equipment, but when moisture content value is lower than this first predetermined moisture value, then stop dry the action;
When being higher than one second predetermined moisture value, moisture content value then strengthens the dry firepower output of drying equipment.
Described nondestructive multi-purpose water content tester, wherein, the demonstration of display unit also includes: this first predetermined moisture value, this second predetermined moisture value, a timing value, this timing value are that the expression control module is moving through the drying that will directly stop drying equipment after the time of this timing value.
Described nondestructive multi-purpose water content tester, wherein, device has and comprises a stove and a fan at least on drying equipment, by fan with hot blast that stove produced be blown into or earnest to be measured that suction is sent in the drying equipment to be placed to carry out its dry action; And,
The display unit of control module also shows: wind-force value, one first predetermined wind-force value and one second predetermined wind-force value are measured in one of drying equipment inside;
Control module will send alarm signal when measuring the wind-force value and be lower than the first predetermined wind-force value, and control module will stop the drying action of drying equipment when measuring the wind-force value and be lower than the second predetermined wind-force value.
Described nondestructive multi-purpose water content tester, wherein, this moisture check meter is installed on the position on the drying equipment, be one perforate to be set by the appropriate location on drying equipment, its size is slightly less than the housing of moisture check meter, moisture check meter housing is fixed on around the perforate, and makes the emission pole plate stretch into drying equipment inside, with the moisture check action of the earnest to be measured that carries out drying equipment inside with receiving pole plate.
Below only in the good and bad point of tabulation moisture more of the present utility model check with existing mechanical press type moisture check system, the beneficial effects of the utility model as can be seen therefrom:
Project Moisture check meter of the present utility model Existing moisture check system
Structural detail Simple structure, number of elements is few, is difficult for breaking down Need numerous and diverse transmission and rolling body, the failure rate height
Versatility Because of having bigger fixed test zone, applicable to multiple material, such as grain, beans, iron sand, sandstone, particles, and the suitable particulates magnitude range is wider, and range of application is extremely wide Cereal at different sizes need design corresponding transmission and rolling body, can not be suitable for various cereal by a machine, but unit single-use only, and can't detect the too high material of hardness
Detection mode Non-destructive detects, earnest to be measured only by sensing capacitance signal between the two-plate and being converted to water-retention value, need not destroy earnest to be measured The destructive detection, the earnest to be measured of cereal etc. needs to be pulverized, destroy, and after its resistance value of sensing, converts water-retention value again to
Control is set Can preestablish several moisture content value according to earnest characteristic to be measured; when the moisture content value of earnest to be measured is higher than a certain particular value; may command is quickened dry with big fire; in case earnest drying to be measured makes its moisture content value drop to a certain specific moisture content value when following, may command drying equipment auto stop The set-up function of no dryin-up point
Sensing range The moisture content value of determinand, after testing can be according to the difference of material, scope by near 0% to all can accurately showing its water percentage near 100% The sensing range of its cereal moisture percentage is only more accurate in the 12%-22% scope, then error is bigger to exceed this scope, the value of no reference
Connectivity Can be with signal feedback to control module, drying equipment, computer etc., can carry out the control of the dry firepower size of drying equipment, because of it detects action for continuity, so can be with the temperature of dry run, humidity, export computer to be depicted as relevant form or chart with the data of drying time, how to improve dry usefulness for the research reference Testing only can intermittently be carried out, and can only be used for the reference of whether shutting down at most, but single-set operation only
Guiding function Have do sample test at the water-retention value standard of different measured objects after, with its water percentage record, storage, and provide water percentage to set the foundation at reference mark, and do not need to decide dry reference mark at the characteristic analysis of determinand in addition, have versatility and intelligent widely Do not have and instruct function
Description of drawings
Fig. 1 is the assembly exploded perspective synoptic diagram of a preferred embodiment of moisture check meter of the present utility model;
Fig. 2 is the three-dimensional combination figure of moisture check meter shown in Figure 1;
Fig. 3 is an enforcement illustration of the control module of moisture check meter of the present utility model;
Fig. 4 A is the video data embodiment of display unit of the present utility model;
Fig. 4 B is another embodiment of the shown data of display unit of the present utility model;
Fig. 5 is control module of the present utility model carries out the control action of drying equipment according to the moisture content value of being measured a process flow diagram;
Fig. 6 is that moisture check meter of the present utility model is installed in the schematic perspective view on the grain drying;
Fig. 7 is that moisture check meter of the present utility model is installed in another diagrammatic cross-section on another grain drying;
Fig. 8 is that moisture check meter of the present utility model is installed in the embodiment synoptic diagram on another grain drying.
Wherein, description of reference numerals is as follows:
1 multi-purpose water content check meter, 10 housings, 101 open sides
102 accommodation spaces, 11 circuit boards, 12 temperature compensation sensing rod for temperature
13 emission pole plates, 131 inclined sides 14 receive pole plate
141 openings, 142 fins, 143 inclined sides
15 insulcretes, 151 flutings, 152 chimbs
16 screws, 20 control modules, 21 power leads
The temperature of 22 connecting lines, 23 display units, 231 earnest to be measured
232 moisture content value, 235 timing values 236 are measured the wind-force value
237 first predetermined wind-force value 238 second predetermined wind-force value values 239 time delays
24 operating keys, 6 computer units, 7,8,9 grain dryings
71,91 stoves, 72,92 fans, 73 anemometry meters
Embodiment
In order more specifically to illustrate feature of the present utility model and invention intension, by following embodiment, and be described with reference to the accompanying drawings as followsly, just can understand advantage of the present utility model and effect thereof.
Main feature of the present utility model, be according to high frequency waves (zig-zag) when the object, the moisture that is contained in the object what, the physical characteristics that can impact capacitance, and design a kind of nondestructive multi-purpose water content tester.Moisture check meter of the present utility model is installed on the drying equipment, owing to be to check moisture by object, therefore can destroy earnest to be measured, and can carry out continuity and detect according to high frequency waves.Because do not need numerous and diverse mechanical component, so failure rate significantly reduces, and same moisture check meter goes for water content detection work, multi-usage and the versatility height of article such as multiple different crops even sandstone, particles.The also supporting design of moisture check meter of the present utility model has a control module, can be connected in drying equipment or detection case, and moves according to the drying of measured moisture content value control drying equipment, but also has guiding water percentage set-up function.
See also Figure 1 and Figure 2, be a preferred embodiment of nondestructive multi-purpose water content tester 1 of the present utility model, it can be installed in one need carry out on the machinery and equipment of water content detection (such as grain drying equipment) so that thing to be determined (such as grain) is carried out the work for inspection of moisture.In preferred embodiment, this moisture check meter 1 includes: a housing 10, a circuit board 11, a temperature compensation sensing rod for temperature 12, at least one emission pole plate 13, at least one reception pole plate 14, an insulcrete 15 and a control module 20.
Housing 10 1 sides are to be open shape and to be an open sides 101, and its inside is to be hollow and to form an accommodation space 102.
This circuit board 11 is to be placed in the accommodation space 102 of housing 10 inside by open sides 101, and design has the circuit design (not shown) that can carry out sensing temperature, produce high frequency waves and receive high frequency waves or the like at least on circuit board 11.
One end of this temperature compensation sensing rod for temperature 12 is connected on the circuit board 11, and the other end is then given prominence to outside housing 10 by open sides 101, can carry out the sensing of temperature value.
This emission pole plate 13 is a fin shape structure, the one end connects (coupling and fixing) on circuit board 11, the other end is then given prominence to outside housing 10 by open sides 101, and the upper side edge of emission pole plate 13 then is designed to an inclined side 131, the effect appearance back detailed description of this inclined side 131.Emission pole plate 13 is coupling on its circuit that can produce high frequency waves, and high frequency waves can be launched through emission pole plate 13.
Receiving pole plate 14 is to be cover plate shape structure, it can cover the open sides 101 of housing 10 just, on reception pole plate 14, be provided with and comprise an opening 141 and the lamellar fin 142 that at least one is outstanding, fin 142 is greater than emission pole plate 13, and is provided with inclined side 143 too at the upper side edge of fin 142.The position of opening 141 and form fit emission pole plate 13 receives pole plate 14 for its protruding passing, fin 142 protrude out direction cooperate emission pole plate 13 and with emission pole plate 13 appropriate intervals of being separated by.Receive pole plate 14 and be coupled in the circuit that it can receive high frequency waves, the fin 142 that makes the emission high frequency waves that pole plate 13 sent can be received pole plate 14 receives, and is high frequency waves signal (capacitance signal) by the circuit conversion of these reception high frequency waves on the circuit board 11.
Insulcrete 15 is to receive between pole plate 14 and the circuit board 11, and the position corresponding to emission pole plate 13 on insulcrete 15 is provided with a fluting 151 for the emission pole plate 13 protruding insulcretes 15 that pass.Also be provided with chimb 152 around the fluting 151, it can insert between the opening 141 and emission pole plate 13 that receives pole plate 14 just, directly contacts with reception pole plate 14 to avoid launching pole plate 13.As for insulcrete 15, receive pole plate 14, and housing 10 between, can be fixed by screw 16, also can welding, gummed or otherwise be combined into one.
See also shown in Figure 3, this control module 20 connects a power supply (not shown) and circuit board 11 respectively by power lead 21 and connecting line 22, receive high frequency waves signal that pole plate 14 received and, all can be sent to control module 20 through circuit board 11 and connecting line 22 by 12 sensed temperature value signals of temperature compensation sensing rod for temperature.And the circuit by control module 20 inside and the design of software, according to this high frequency waves signal (capacitance signal) and cooperate temperature value signal, and calculate corresponding moisture content value.
On control module 20, also be provided with and comprise a display unit 23 and some operating keys 24.Shown in Fig. 4 A and Fig. 4 B; in its preferred embodiment, display unit 23 can show and includes: the temperature value 231 of the earnest to be measured that is sensed by the temperature compensation sensing rod for temperature; the moisture content value 232 that calculates by control module; one first predetermined moisture value 233 (be used to specify and stop drying); the second predetermined moisture value 234 (be used to specify and improve dry power); one timing value 235 (setting stop time); one measures wind-force value 236; one first predetermined wind-force value 237 (being used to send caution); one second predetermined wind-force value 238 (being used for forced stoppage); and one time delay be worth 239 (shutting down the aft-fan late release times).In this preferred embodiment, display unit 23 can't once demonstrate above-mentioned each value, but need to show each data value by pushing operating key 24 in batches because of being subjected to the restriction of size simultaneously.Certainly, we also can change the design of display unit 23, and above-mentioned each value once all is simultaneously displayed on the display unit.
See also Fig. 6, Fig. 7 and Fig. 8, be installed in the enforcement illustration of multi-form grain drying 7,8,9 (it can be circulating drying equipment or fixed drying equipment) for moisture check meter 1 of the present utility model.In general, on drying equipment 7,8,9, all be equiped with and comprise a stove 71,91 and a fan 72,92 at least, by fan 72,92 stove 71,91 hot blasts that produced are blown between the earnest of being placed in (also can be to suck) drying equipment 7,8,9 to be measured to carry out its dry action.Design the housing 10 that its size of a perforate (unnumbered among the figure) is slightly less than moisture check meter 1 by the appropriate location on drying equipment 7,8,9, be fixed on moisture check meter housing 10 around the perforate and make emission pole plate 13 and the fin 142 that receives pole plate 14 stretch into drying equipment 7,8,9 inside, with the moisture check action of the earnest to be measured that carries out drying equipment 7,8,9 inside.As for this 1 position that is installed on the drying equipment 7,8,9 of moisture check meter, then generally speaking be that its emission pole plate 13 and reception pole plate 14 can be covered by things to be determined such as cereal, but must note to avoid having influence on the original function of grain drying simultaneously.Just owing to emission pole plate 13 and the cereal that the fin 142 that receives pole plate 14 can be dropped from top to bottom cover, for avoiding cereal, paddy bits or paddy dirt to be deposited on emission pole plate 13 and the fin 142, therefore launch that pole plate 13 all is designed to flake structure with fin 142 and its upside all is designed to inclined side 131,143, be beneficial to landings smoothly such as cereal, paddy bits or Gu Chen.
See also Fig. 5, it is a process flow diagram, illustrates that roughly control module 20 of the present utility model carries out a concise and to the point embodiment of the control action of drying equipment 7 according to the moisture content value of being measured.This control module 20 is connected on this drying equipment 7, can control the drying action of drying equipment 7 according to moisture check meter 1 detected moisture content value.Receive the temperature value 231 and the moisture content value 232 (asking for an interview Fig. 4 A and Fig. 4 B) of the measured earnest to be measured of moisture check meter 1 by control module 20 of the present utility model, and be shown on the display unit 23.This first predetermined moisture value 233 is to represent us to be scheduled to which kind of degree cereal is dried to just to stop drying.Dry action will continue to carry out (square 701) when moisture content value 232 is higher than this first predetermined moisture value 233, just stop dry action (square 702) when being lower than this first predetermined moisture value 233 when measured moisture content value 232, the expression drying is finished (square 704).The water cut of cereal is higher under some state, can carry out drying with the dry wind of higher temperature to raise the efficiency, for example, when moisture content value 232 is higher than the second predetermined moisture value 234 that sets (square 703), the stove 71 that control module 20 will be controlled grain drying 7 strengthens firepower output, to quicken rate of drying.
What deserves to be mentioned is that people are predetermined which kind of degree cereal is dried to just stops drying because the of the present utility model first predetermined moisture value 233 can be used to control.So, when but the drying work of carrying out a certain determinand does not for the first time know which kind of degree it should be dried to and just calculate when finishing, after the standard dry sample that people can get its determinand earlier detects with moisture check meter 1 of the present utility model, be input in control module 20 to this first predetermined moisture value 233 through operating key 24 moisture value measured and store this numerical value in storer, as the standard that detects.Then; only need push specific operating key 24 and just can carry out the switching utilization that it is stored in the predetermined moisture value 233 of some different first in the storer in advance; reach the different dry reference mark of different cereal; and then the shutdown and the action of control machine, and this just described in the utility model can be guiding the function set of water percentage.
In addition, for avoiding at moisture check meter 1 when barrier makes the mensuration of moisture content value produce error for some reason, drying equipment 7 can continue to carry out drying always and cause danger.Ad hoc in respect of timing value 235 at control module 20, expression control module 20 with directly stopping the drying action of drying equipment 7, can increase considerably security like this after the time that sets through timing value 235.
The hot blast path of drying equipment 7 suffers that dust is piled up or other factors is blocked in order to avoid sometimes, the hot blast that causes fan 72 to be blowed can't flow smoothly, the temperature of stove 71 may be too high and cause danger like this, and the utility model is ad hoc on control module 20 to be measured wind-force value 236, first predetermined wind-force value 237 and second in respect of this and be scheduled to data such as wind-force value 238.Measure wind-force value 236 and be the measured dry-heat air flow velocity of an anemometry meter 73 that installs in the hot-air channel (not shown) of drying equipment 7 inside by.When measuring wind-force value 236 and be lower than the first predetermined wind-force value 237, the expression hot-air channel has the partial blockage phenomenon, and control module 20 will send alarm signal (for example caution sound or flashing light) notifying operation personnel and carry out the mediation maintenance work of drying equipment 7 at this moment.And when measuring wind-force value 236 and be lower than the second predetermined wind-force value 238, represent that then hot-air channel has more serious obstruction, this moment control module 20 will send more serious alarm signal or even the drying action that directly stops drying equipment 7 to avoid danger.In addition, being worth 239 this time delay is to represent that its fan 72 will just cut out after the continuous running regular hour after drying equipment 7 stops drying.
In addition, control module 20 of the present utility model also can be connected on the computer unit 6 (as shown in Figure 3), so that control module 20 data measured and that calculate are sent to computer unit 6.These data further can be handled by computer unit 6, for example be stored, analyze, tabulate, draw or by printer output or the like.
The utility model is structure as the aforementioned, really can reach the effect and the effect of expection.But the explanation of above-mentioned the utility model preferred embodiment is to be used for providing technical characterictic of the present utility model, rather than limits right of the present utility model.Though for example the inside of this instructions be in grain drying as a preferred embodiment that is equiped with moisture of the present utility model check, any personage who is familiar with this technology all can be installed in the utility model on sandstone drying equipment or particles drying equipment or other drying or the object storing equipment easily.Therefore, the conversion of change on every structure, on the number and equivalence all should be included in the scope of claim of the present utility model.

Claims (7)

1. a multi-purpose water content check meter can be arranged on one and need carry out on the equipment of water content detection, it is characterized in that this moisture check meter comprises:
One housing, there is an accommodation space its inside;
One circuit board is placed in this accommodation space, and design has the circuit that can carry out sensing temperature, produce high frequency waves and receive high frequency waves at least on this circuit board;
One can carry out temperature value sensed temperature compensation sensing rod for temperature, and the one end is connected on this circuit board, and the other end then protrudes in outside this housing;
At least one emission pole plate, one end be connected on this circuit board and by housing one pleurapophysis for outside this housing, this emission pole plate is coupling on the circuit that can produce high frequency waves;
At least one reception pole plate, protrude in outside this housing and with this emission pole plate at a distance of one at interval, this reception pole plate is coupled in the circuit that this can receive high frequency waves, and the high frequency waves that this emission pole plate is sent can be received pole plate by this and receive, and is the high frequency waves signal by the circuit conversion of these reception high frequency waves; And,
One control module, be coupled in this circuit board, the high frequency waves signal that this reception pole plate is received and this temperature compensation sensing rod for temperature institute sensed temperature value all can be sent to this control module through this circuit board, this control module output and this high frequency waves signal and the corresponding moisture content value of this temperature value;
Wherein, this emission pole plate is a fin shape structure, and has an inclined side at the upside of this emission pole plate;
One side of this housing is open shape and is an open sides, and this circuit board is put into this accommodation space via this open sides; This reception pole plate is the cover plate shape, and it can cover the open sides of this housing just; On this reception pole plate, be provided with and comprise that an opening and at least one fin, the position of this opening and shape are to cooperate this emission pole plate for its protruding this reception pole plate that passes, this fin protrude out direction be matched with this emission pole plate and with this emission pole plate distance of being separated by.
2. multi-purpose water content as claimed in claim 1 check meter is characterized in that described fin launches pole plate greater than this, and has inclined side at the upside of described fin.
3. multi-purpose water content check meter as claimed in claim 1, it is characterized in that also comprising an insulcrete, it receives between pole plate and this circuit board at this, position corresponding to this emission pole plate on this insulcrete is provided with a fluting, this emission pole plate is by protruding this insulcrete that passes of this fluting, the periphery of this fluting is provided with chimb, and it can be placed between the opening and this emission pole plate of this reception pole plate just.
4. multi-purpose water content check as claimed in claim 1 is counted, and it is characterized in that also being provided with on this control module including a display unit, and it shows this sensed temperature value and moisture content value at least.
5. multi-purpose water content as claimed in claim 1 check meter is characterized in that the equipment that described needs carry out water content detection is a drying equipment; This control module is connected on this drying equipment.
6. multi-purpose water content check meter as claimed in claim 5 is characterized in that being equiped with an at least one stove and a fan on this drying equipment.
7. multi-purpose water content check meter as claimed in claim 5, it is characterized in that this moisture check meter is installed in a perforate that is provided with on this drying equipment, the size of this perforate is slightly less than the housing of this moisture check meter, this moisture check meter housing is fixed on around this perforate, and this emission pole plate and this reception pole plate stretch into this drying equipment inside.
CN 200420065595 2004-06-11 2004-06-11 Multi-functional moisture check meter Expired - Fee Related CN2752771Y (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105651833A (en) * 2014-11-15 2016-06-08 新疆科立机械设备有限公司 A method of measuring the water content of a granular material based on capacitance
CN108732208A (en) * 2018-05-22 2018-11-02 上海交通大学 A kind of Crop moisture sensor and the method for measuring grain moisture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105651833A (en) * 2014-11-15 2016-06-08 新疆科立机械设备有限公司 A method of measuring the water content of a granular material based on capacitance
CN108732208A (en) * 2018-05-22 2018-11-02 上海交通大学 A kind of Crop moisture sensor and the method for measuring grain moisture
CN108732208B (en) * 2018-05-22 2020-11-06 上海交通大学 Grain moisture sensor and method for measuring grain moisture

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