CN110426419A - The moisture transducer of digital resistance-type - Google Patents
The moisture transducer of digital resistance-type Download PDFInfo
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- CN110426419A CN110426419A CN201910735378.9A CN201910735378A CN110426419A CN 110426419 A CN110426419 A CN 110426419A CN 201910735378 A CN201910735378 A CN 201910735378A CN 110426419 A CN110426419 A CN 110426419A
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- Prior art keywords
- resistance
- grain
- microcontroller
- moisture transducer
- value
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/045—Circuits
- G01N27/046—Circuits provided with temperature compensation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
Abstract
The embodiment of the invention discloses a kind of moisture transducers of digital resistance-type, including electrical resistance collection mouth, positive and negative electrode, microcontroller and communication interface: electrical resistance collection mouth is connect with microcontroller, for detecting the resistance value of grain；Electrical resistance collection mouth is connected on positive and negative electrode；The positive and negative electrode is contacted with grain to be measured；Microcontroller is connect with communication interface, for receiving host computer instruction and sending data to host computer, can be obtained grain resistance value by electrical resistance collection mouth, and can calculate resistance correlation or grain moisture content numerical value, be possessed ID coding and settable parameters；Communication interface is connect with microcontroller and host computer, for being communicated between microcontroller and host computer.The embodiment of the present invention has the advantages that core reusable, can flexible networking use；It can avoid power supply or communicate the Resistance Influence of insulating layer between core, measure more accurately grain resistance, make the grain moisture content value of measurement more accurate, and facilitate and realize broader moisture measurement range.
Description
Technical field
The embodiment of the present invention relates to grain measurement of moisture content technical field, and in particular to a kind of moisture biography of digital resistance-type
Sensor.
Background technique
Within the scope of normal grain all contains suitable moisture, and moisture content generally remains in centainly, this is
Grain is sustained life and is kept necessary to its intrinsic breeding quality and edible quality.Due to by harvest sooner or later, maturity and
The influence of weather conditions, the moisture content of grain are the numerical value of variation.Measurement for Grain Moisture Content is the important finger for evaluating grain quality
Mark is one of the elementary item of grain detection.
Grain measurement of moisture content mainly uses resistance-type moisture transducer in the prior art.Resistance-type moisture transducer originally
What (node) transmitted is the analog quantity of grain resistance, needs that analog quantity is transformed into number in the survey water installations of cable end piece
Amount.Therefore single to survey the attachable moisture transducer limited amount of water installations, the moisture transducer of analog quantity does not have address, can only
The address of moisture transducer is distinguished by the number of core.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of moisture transducer of digital resistance-type, to solve in the prior art
Since grain measurement of moisture content is inefficient caused by individually surveying the attachable moisture transducer limited amount of water installations, can keep away
The Resistance Influence of insulating layer, directly detects the resistance of grain between power-free or communication core, allows the grain moisture content number of measurement
According to more precisely, facilitates and realize broader moisture measurement range.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
According to a first aspect of the embodiments of the present invention, a kind of moisture transducer of digital resistance-type, including electricity are provided
Hinder acquisition port, positive and negative electrode, microcontroller and communication interface:
Electrical resistance collection mouth is connect with microcontroller, and the resistance value for microcontroller acquisition grain uses；Electrical resistance collection mouth
It is connected to positive and negative electrode；
The positive and negative electrode is contacted with grain to be measured, for the grain resistance between measuring electrode；
Microcontroller is connect with communication interface, and microcontroller is used to obtain the resistance of the collected grain of electrical resistance collection mouth
Value；The microcontroller can also be used to convert resistance value to resistance correlation or grain moisture content value；And by resistance value, resistance
Correlation or grain moisture content value are sent to host computer；
Communication interface is connect with microcontroller and host computer, is used for grain resistance value, resistance correlation or grain moisture content
Value sends host computer to；
Microcontroller instructs the resistance value for obtaining the collected grain of electrical resistance collection mouth or microcontroller to press according to host computer
It is selected according to preset time, the resistance value of time interval or the collected grain of frequency acquisition electrical resistance collection mouth.
It further, further include insulation injection molded layers, the surface of insulation injection molded layers is arranged in the positive and negative electrode, described positive and negative
Electrode does not contact；The external insulating protective layer periphery of cable corresponding with the moisture transducer is arranged in insulation injection molded layers.
Further, further include temperature sensor, connect with microcontroller, for obtaining cereal temperature value；
Correspondingly, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, for the electricity according to grain
Resistance value and cereal temperature value calculate grain moisture content numerical value；
Or, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, by the resistance value and grain of grain
Temperature value is sent to host computer by communication interface；
Or, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, resistance phase is converted by resistance value
Resistance correlation and cereal temperature value are passed through communication interface together and are sent to host computer by pass value.
Further, the moisture transducer of the digital resistance-type is connected to power supply by voltage regulator circuit, pressure stabilizing electricity
Road is used to after the voltage of power supply is carried out steady pressure treatment export to the moisture transducer of digital resistance-type.
Further, the moisture transducer of the digital resistance-type further includes high-tension circuit:
High-tension circuit is connect with microcontroller and power supply, is generated for the control instruction based on microcontroller and is applied to grain
Making alive.
Further, the data/address bus of the moisture transducer of the digital resistance-type is a core, the data/address bus
It is shared with the core in power supply line.
Further, the moisture transducer of the digital resistance-type further includes split circuit, and being used for will be total with data
Working power and signal of communication separation in the shared power supply line of line.
Further, the data/address bus of the moisture transducer of the digital resistance-type is a core, the data/address bus
It is not shared with any one core in power supply line.
Further, the data/address bus of the moisture transducer of the digital resistance-type is two cores, the data/address bus
It is not shared with any one core in power supply line.
Further, the temperature sensor includes any of the following: resistance temperature detector RTD, thermocouple, heat
Any temperatures determination unit such as sensitive resistor and integrated circuit temperature sensor.
Further, moisture transducer possesses ID coding；Simultaneously, additionally it is possible to position of the moisture transducer in silo be set and compiled
Depth in silo of code, types of food, moisture transducer, moisture transducer in silo the pressure of position, from
At least one of defined parameters.
The embodiment of the present invention provides a kind of moisture transducer of digital resistance-type, including electrical resistance collection mouth, positive negative electricity
Pole, microcontroller and communication interface: electrical resistance collection mouth is connect with microcontroller, for detecting the resistance value of grain；Electrical resistance collection
Mouth is connected on positive and negative electrode；The positive and negative electrode is contacted with grain to be measured；Microcontroller is connect with communication interface, for receiving
Host computer instruction simultaneously sends data to host computer, the resistance value of grain can be obtained by electrical resistance collection mouth, and can calculate
Resistance correlation or grain moisture content numerical value possess ID and encode and can be set Position Number, storage types of food, depth, pressure
Or other custom parameters；Communication interface is connect with microcontroller and host computer, for carrying out between microcontroller and host computer
Communication.The embodiment of the present invention, which has the advantages that, to allow core to be multiplexed, can flexible networking use；To avoid power supply or it can lead to
The Resistance Influence for interrogating insulating layer between core, detects more accurately grain resistance, makes the grain moisture content data of measurement more accurate,
Facilitate and realizes broader moisture measurement range.
The embodiment of the present invention has the advantages that
1. core can be allowed to be multiplexed, accomplish that core is multiplexed, it is minimum only to need 2 cores that realize multiple moisture transducers
Connection, can flexible networking use.
2. grain resistance is very big, close or larger than the resistance (long distance between core insulating layer in the measurement of low moisture grain
From transmission, the resistance value between insulating layer can become smaller), the present invention can be to avoid the electricity of insulating layer between power supply or communication core
Resistance influences, and detects more accurately grain resistance, makes the grain moisture content data of measurement more accurate, facilitates and realizes that broader moisture is surveyed
Measure range.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents can cover.
Fig. 1 is the moisture transducer overall structure diagram of provided in an embodiment of the present invention one digital resistance-type；
Fig. 2 is the moisture transducer concrete structure schematic diagram of provided in an embodiment of the present invention one digital resistance-type；
Fig. 3 is the moisture transducer concrete structure schematic diagram of another digital resistance-type provided in an embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
To solve at least one technical problem in the prior art, the embodiment of the present invention provides a kind of digital resistance-type
Moisture transducer.As shown in Figure 1, the moisture transducer of the digital resistance-type generally comprise electrical resistance collection mouth 10,
Positive and negative electrode 12, microcontroller 11 and communication interface 13:
Electrical resistance collection mouth 10 is connect with microcontroller 11, the electricity for the control instruction acquisition grain based on microcontroller 11
Resistance value；Electrical resistance collection mouth 10 is connected on positive and negative electrode 12；The positive and negative electrode 12 is respectively made of one or more electrodes；
The positive and negative electrode 12 is contacted with grain to be measured, for the grain resistance between measuring electrode；
Microcontroller 11 is connect with communication interface 13, and microcontroller 11 is used to obtain the electricity for the grain that electrical resistance collection mouth collection arrives
Resistance value, the microcontroller 11 can also be used to convert resistance value to resistance correlation or grain moisture content value；And by resistance value,
Resistance correlation or grain moisture content value are sent to host computer；
Communication interface 13 is connect with microcontroller 11 and host computer, is used for grain resistance value, resistance correlation or grain
Moisture value sends host computer to.
Wherein, microcontroller 11 is also used to obtain grain moisture content value based on resistance calculations, and grain moisture content value is passed through communication
Interface 13 is sent to host computer；
Microcontroller instructs the resistance value for obtaining the collected grain of electrical resistance collection mouth or microcontroller to press according to host computer
It is selected according to preset time, the resistance value of time interval or the collected grain of frequency acquisition electrical resistance collection mouth.
Wherein, host computer is any electronic equipment that control instruction can be sent to microcontroller, can be computer, hand
Holding equipment or large server etc., the embodiment of the present invention is not specifically limited herein.
It needs, further includes temperature sensor, connect with microcontroller, for obtaining cereal temperature value.
It is all the institutes such as microprocessor, microcomputer chip, digital signal processor, CPLD that wherein the microcontroller, which can wait,
There is the integrated circuit for having data calculation processing function, the embodiment of the present invention is not especially limited.Controller can receive but not
It is limited to parameter setting instruction, the control instruction that host computer is sent.
Further, because what is acquired is many to grain resistance value digit, grain resistance value is directly sent to host computer meeting
So that transmission speed is slow or data are easy error of transmission, thus the grain resistance value that can will acquire of microcontroller carry out ln or
The processing of log is translated into resistance correlation, and host computer carries out reverse process to correlation again after getting resistance correlation,
Obtain accurate grain resistance value.
It further, further include insulation injection molded layers, the surface of insulation injection molded layers, the positive negative electricity is arranged in the positive and negative electrode
Pole does not contact；The external insulating protective layer periphery of cable corresponding with the moisture transducer is arranged in insulation injection molded layers.
Further, correspondingly, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, for according to grain
The resistance value and cereal temperature value of food calculate grain moisture content numerical value；
Or, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, by the resistance value and grain of grain
Temperature value is sent to host computer by communication interface；
Or, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, resistance phase is converted by resistance value
Resistance correlation and cereal temperature value are passed through communication interface together and are sent to host computer by pass value.
Wherein, the moisture transducer of the digital resistance-type further includes high-tension circuit: high-tension circuit and microcontroller
It is connected with power supply, generated for the control instruction based on microcontroller and is based on the positive and negative electrode to grain application voltage.
Further, the moisture transducer of the digital resistance-type is connected to power supply by voltage regulator circuit, pressure stabilizing electricity
Output is used to the moisture transducer of digital resistance-type after road is used to carrying out power supply into steady pressure treatment.
Also further, the data/address bus of the moisture transducer of the digital resistance-type is a core, the data/address bus
It is shared with the core in power supply line.
Further, the moisture transducer of the digital resistance-type further includes split circuit, and the split circuit is used
Power supply and data are independent in separating data and power supply from bus.
Also further, the data/address bus of the moisture transducer of the digital resistance-type is a core, the data/address bus
It is not shared with any one core in power supply line.
Also further, the data/address bus of the moisture transducer of the digital resistance-type is at least two cores, the data
Any one core in bus and power supply line does not share.
Also further, the temperature sensor includes any of the following: resistance temperature detector RTD, thermocouple, heat
Any temperatures determination unit such as sensitive resistor and integrated circuit temperature sensor.
The embodiment of the present invention provides a kind of moisture transducer of digital resistance-type, including electrical resistance collection mouth, positive negative electricity
Pole and microcontroller and communication interface: electrical resistance collection mouth is connect with microcontroller, the resistance value for microcontroller acquisition grain
It uses；Electrical resistance collection mouth is connected on positive and negative electrode；The positive and negative electrode is contacted with grain to be measured；Microcontroller and communication interface
Connection instructs acquisition electrical resistance collection mouth to collect for receiving host computer instruction and sending data to host computer based on host computer
Grain resistance value, microcontroller be further used for according to the resistance value of grain calculate grain moisture content numerical value；Communication interface with
Microcontroller is connected with host computer, for grain moisture content numerical value to be sent to host computer.The embodiment of the present invention has the advantages that
With efficient detection grain moisture content, and exclude the problem of each moisture sensor signal is interfered.
On the basis of the above embodiment of the present invention, a kind of moisture transducer is provided, microcontroller is also used to based on resistance
It calculates and obtains grain moisture content value, grain moisture content value is sent to host computer by communication interface.
On the basis of the above embodiment of the present invention, a kind of moisture transducer of digital resistance-type is provided, with micro-control
Device connection processed, for obtaining cereal temperature value；
Or, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, by the resistance value and grain of grain
Temperature value is sent to host computer by communication interface；
Or, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, resistance phase is converted by resistance value
Resistance correlation and cereal temperature value are passed through communication interface together and are sent to host computer by pass value.
Wherein, there are two types of effects for temperature sensor, first is that for obtaining cereal temperature value, second is that collected grain water
Score value makees temperature-compensating, specifically, cereal temperature value is sent to microcontroller, so that microcontroller is used for according to grain
Resistance value and cereal temperature value calculate grain moisture content numerical value.
The embodiment of the present invention provides a kind of moisture transducer of digital resistance-type, including temperature sensor, with micro-control
Device connection processed, for obtaining cereal temperature value, further makees temperature-compensating to collected grain moisture content value.The embodiment of the present invention
Cereal temperature can be detected simultaneously by having the advantages that, and make accurate compensation to food moisture value based on cereal temperature.
On the basis of the above embodiment of the present invention, a kind of moisture transducer of digital resistance-type, the number are provided
The moisture transducer of the resistance-type of word formula further includes high-tension circuit:
High-tension circuit is connect with microcontroller and power supply, is generated and is based on described for the control instruction based on microcontroller
Positive and negative electrode applies voltage to grain.
Wherein, the high-tension circuit is equivalent to high-voltage insulating resistance tester in the prior art, and high pressure solves tester
It for generating high direct voltage, is applied on resistance by test loop, the resistance value of feedback is obtained by test loop.
The embodiment of the present invention carries out the resistance measurement of grain by high-tension circuit, has and more accurately measures grain moisture content
Beneficial effect.
On the basis of the above embodiment of the present invention, a kind of moisture transducer of digital resistance-type, the number are provided
The data/address bus of the moisture transducer of the resistance-type of word formula is a core, and the core in the data/address bus and power supply line shares.
Wherein, as shown in Fig. 2, the moisture transducer of resistance-type digital described in the embodiment of the present invention uses 2 line systems:
The data/address bus of the moisture transducer of the digital resistance-type is a core, the one of line of power supply line and data/address bus and use
1 line, the working power that power supply is module is taken out by split circuit respectively, and data are module and host computer signal of communication.It is described
Electrical resistance collection mouth is connect with the positive and negative anodes of grain respectively.
Further, the moisture transducer of the digital resistance-type further includes split circuit, and the split circuit is used for
Data and power supply are separated from bus and are independent power supply and data.
On the basis of the above embodiment of the present invention, a kind of moisture transducer of digital resistance-type, the number are provided
The data/address bus of the moisture transducer of the resistance-type of word formula is a core, and any one core in the data/address bus and power supply line is not
It shares.
Wherein, the moisture transducer of resistance-type digital described in the embodiment of the present invention uses 3 line systems: using Special electric
Source and single data/address bus.
On the basis of the above embodiment of the present invention, a kind of moisture transducer of digital resistance-type, the number are provided
The data/address bus of the moisture transducer of the resistance-type of word formula is at least two cores, any one core in the data/address bus and power supply line
Do not share.
Wherein, the moisture transducer of resistance-type digital described in the embodiment of the present invention uses 4 line systems: using Special electric
Source and double joint data/address bus.
On the basis of the above embodiment of the present invention, a kind of moisture transducer of digital resistance-type, the temperature are provided
Degree sensor includes any of the following: resistance temperature detector RTD, thermocouple, thermal resistor and Integrated Circuit Temperature
Any temperatures determination unit such as sensor.
RTD (resistance temperature detector) is a kind of temperature sensor, its working principle is that the resistance of material can be with temperature
Change and changes.Relationship very predictable between RTD resistance and ambient temperature, to realize accurate continuous temperature measurement.
Constant current is supplied to RTD, the voltage drop formed after resistor is measured, RTD resistance can be calculated, so that it is determined that warm
Degree.
Thermocouple (thermocouple) is common temperature element in temperature measuring instrument, it directly measures temperature, and
Temperature signal is converted into thermo-electromotive force signal, the temperature of measured medium is converted by electric meter (secondary meter).
Thermal resistor is a kind of extremely sensitive resistor of resistance value on temperature, is also semiconductor thermistor device.It
It can be made of the semiconductor materials such as monocrystalline, polycrystalline and glass, plastics.This resistor has a series of special electrical properties,
Most basic characteristic is that its resistance value variation with temperature has extremely significant change and volt-ampere curve in non-linear.
Temperature sensing can be digital with the embodiment of the present invention resistance-type moisture transducer carry out serial or parallel connection make
With；As shown in figure 3, the moisture transducer of the temperature sensing resistance-type digital with the embodiment of the present invention is used in parallel.
On the basis of the above embodiment of the present invention, a kind of moisture transducer of digital resistance-type is provided, further includes
Voltage regulator circuit: power supply is being unable to satisfy module operating voltage after the bus of long-distance generates pressure drop, gives by voltage regulator circuit
Module has a stable operating voltage.It can be not added when short distance.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (11)
1. a kind of moisture transducer of digital resistance-type, which is characterized in that including electrical resistance collection mouth, positive and negative electrode, micro-control
Device processed and communication interface:
Electrical resistance collection mouth is connect with microcontroller, and the resistance value for microcontroller acquisition grain uses；The connection of electrical resistance collection mouth
To positive and negative electrode；
The positive and negative electrode is contacted with grain to be measured, for the grain resistance between measuring electrode；The positive and negative electrode respectively by 1 or
Multiple electrodes composition；
Microcontroller is connect with communication interface, and microcontroller is used to obtain the resistance value of the collected grain of electrical resistance collection mouth；Institute
Stating microcontroller can also be used to convert resistance value to resistance correlation or grain moisture content value；And it is resistance value, resistance is related
Value or grain moisture content value are sent to host computer；
Communication interface is connect with microcontroller and host computer, for passing grain resistance value, resistance correlation or grain moisture content value
Give host computer.
2. moisture transducer according to claim 1, which is characterized in that further include insulation injection molded layers, the positive and negative electrode
The surface of insulation injection molded layers is set, and the positive and negative electrode does not contact；Insulate injection molded layers setting with the moisture transducer pair
Answer the external insulating protective layer periphery of cable.
3. moisture transducer according to claim 1 or 2, which is characterized in that further include temperature sensor, with microcontroller
Connection, for obtaining cereal temperature value；
Correspondingly, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, for the resistance value according to grain
Grain moisture content numerical value is calculated with cereal temperature value；
Or, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, by the resistance value and cereal temperature of grain
Value is sent to host computer by communication interface；
Or, microcontroller is also used to obtain the cereal temperature value that temperature sensor obtains, resistance correlation is converted by resistance value,
Resistance correlation and cereal temperature value are passed through into communication interface together and are sent to host computer.
4. the moisture transducer of digital resistance-type according to claim 1 or 2, which is characterized in that described digital
The moisture transducer of resistance-type connected to power supply by voltage regulator circuit, voltage regulator circuit for will power supply carry out it is defeated after steady pressure treatment
It is used out to the moisture transducer of digital resistance-type.
5. the moisture transducer of digital resistance-type according to claim 1 or 2, which is characterized in that described digital
The moisture transducer of resistance-type further include high-tension circuit:
High-tension circuit is connect with microcontroller and power supply, is generated and is based on described positive and negative for the control instruction based on microcontroller
Electrode applies voltage to grain.
6. the moisture transducer of digital resistance-type according to claim 4, which is characterized in that the digital electricity
The moisture transducer of resistive further includes high-tension circuit:
High-tension circuit is connect with microcontroller and power supply, for applying voltage to the positive and negative electrode to grain；
Or, high-tension circuit is connect with the voltage regulator circuit, for applying voltage to the positive and negative electrode to grain.
7. the moisture transducer of digital resistance-type according to claim 1 or 2, which is characterized in that described digital
The data/address bus of moisture transducer of resistance-type be a core, the core in the data/address bus and power supply line shares.
8. the moisture transducer of digital resistance-type according to claim 7, which is characterized in that the digital electricity
The moisture transducer of resistive further includes split circuit, and the split circuit is used to data and power supply being separated into independence from bus
Power supply and data.
9. the moisture transducer of digital resistance-type according to claim 1 or 2, which is characterized in that described digital
The data/address bus of moisture transducer of resistance-type be a core, any one core in the data/address bus and power supply line is not altogether
With.
10. the moisture transducer of digital resistance-type according to claim 1 or 2, which is characterized in that described digital
The data/address bus of moisture transducer of resistance-type be at least two cores, any one core in the data/address bus and power supply line is not
It shares.
11. the moisture transducer of digital resistance-type according to claim 1, it is characterised in that:
Moisture transducer possesses ID coding；Simultaneously, additionally it is possible to which position encoded, grain kind of the moisture transducer in silo are set
Depth in silo of class, moisture transducer, moisture transducer are in silo in the pressure, custom parameter of position
At least one.
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| CN201910735378.9A CN110426419A (en) | 2019-08-09 | 2019-08-09 | The moisture transducer of digital resistance-type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804730A (en) * | 2021-08-19 | 2021-12-17 | 赛默威(上海)智能科技有限公司 | Grain hidden venereal disease insect detection equipment |
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