CN109298029A - Intelligent humidity detection device based on integral operation - Google Patents
Intelligent humidity detection device based on integral operation Download PDFInfo
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- CN109298029A CN109298029A CN201811232849.6A CN201811232849A CN109298029A CN 109298029 A CN109298029 A CN 109298029A CN 201811232849 A CN201811232849 A CN 201811232849A CN 109298029 A CN109298029 A CN 109298029A
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- 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
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
- G01N27/121—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid for determining moisture content, e.g. humidity, of the fluid
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Abstract
The present invention provides a kind of intelligent humidity detection device based on integral operation, comprising: at least two humistor units；Channel to channel adapter is connect respectively respectively to export the detectable voltage signals of a humistor unit at least two humistor units at least two humistors unit；Signal amplifier, input terminal are connect with the output end of the channel to channel adapter, and the detectable voltage signals for exporting channel to channel adapter are amplified to obtain amplified signal；Integration module is connect with the output end of the signal amplifier to obtain the amplified signal of signal amplifier output, and carry out integral operation to the amplified signal；Comparison module is connected with integration module and is compared with the integral voltage exported after the integral operation by the integration module with predeterminated voltage, and exports comparison result signal according to comparison result；Main control module is connect with the comparison module, and the main control module is used to be calculated the humidity value of corresponding humistor unit detection according to the comparison result signal that the comparison module exports.
Description
Technical field
The present invention relates to Humidity Detection fields, and in particular to a kind of intelligent humidity detection device based on integral operation.
Background technique
Humidity Detection is needed using dew cell.Dew cell mainly has resistance-type, condenser type two major classes.Humistor
Feature is one layer of film made of wet sensory material of covering on substrate, when the water vapor adsorption in air is on humidity-sensitive film, member
The resistivity and resistance value of part all change, and can measure humidity using this characteristic.Humicap is usually to use macromolecule
Made of thin-film capacitor, common high molecular material has polystyrene, polyimides, butyric acid acetate fiber etc..Work as ambient humidity
When changing, the dielectric constant of humicap changes, its capacitance is made also to change, capacitance change and opposite
Humidity is directly proportional.Up to 2-3%RH, this is higher than wet and dry bulb humidity measurement precision for the accuracy of electronic type moisture sensor.
But it is small to encounter detection accuracy when the humistor of Humidity Detection use in the prior art, and sensitivity is lower
Defect.
Summary of the invention
The embodiment of the present invention provides the intelligent humidity detection device based on integral operation, has and improves detection accuracy and spirit
The beneficial effect of sensitivity.
The intelligent humidity detection device based on integral operation that the embodiment of the invention provides a kind of, comprising:
At least two humistor units；
Channel to channel adapter is connect respectively respectively by at least two wet sensitives electricity at least two humistors unit
Hinder the detectable voltage signals output of a humistor unit in unit；
Signal amplifier, input terminal are connect with the output end of the channel to channel adapter, the inspection for exporting channel to channel adapter
Voltage signal amplification is surveyed to obtain amplified signal；
Integration module is connect to obtain the amplification letter of the signal amplifier output with the output end of the signal amplifier
Number, and integral operation is carried out to the amplified signal；
Comparison module is connect with the integral voltage that exports after the integral operation by the integration module and pre- with the integration module
If voltage is compared, and exports comparison result signal according to comparison result；
Main control module is connect with the comparison module, and the main control module is used for the comparison exported according to the comparison module
The humidity value of corresponding humistor unit detection is calculated in consequential signal.
In the intelligent humidity detection device of the present invention based on integral operation, four humistor lists
The reference resistor value of the humistor of member is sequentially increased.
In the intelligent humidity detection device of the present invention based on integral operation, the channel to channel adapter includes second
It gates chip and third gates chip；The quantity of at least two humistors unit is four；
Two input terminals of third gating chip respectively with two humistor lists in four humistor units
Member connects correspondingly, the output end of third gating chip and other two in four humistor units
Humistor unit is connect correspondingly with three input terminals of the second gating chip；Described second gates the defeated of chip
Outlet is connect with the input terminal of the signal amplifier；
The control terminal of the second gating chip and third gating chip is connected to the main control module respectively.
In the intelligent humidity detection device of the present invention based on integral operation, the integration module includes the first choosing
Obturator piece and integral unit, the first gating chip are connect with the integral unit, the main control module and described first
The control terminal connection of gating chip is to control the integral unit by first gating unit in integration phase and reset rank
Switch between section.
In the intelligent humidity detection device of the present invention based on integral operation, the integral unit includes capacitor
C23, resistance R20 and the first operational amplifier；
The inverting input terminal of first operational amplifier respectively with the first end of the capacitor C23 and the resistance R20
The normal phase input end of first end connection, first operational amplifier accesses the first reference voltage, first operational amplifier
Output end connect respectively with the second end of the comparison module and the capacitor C23, it is described first gating chip pin Z
It being connect with the second end of the capacitor C23, the pin Z1 of the first gating chip is connect with the first end of the capacitor C23,
It is described first gating chip pin X connect with the second end of the resistance R20, it is described first gate chip an input terminal and
The output end of the signal amplifier connects；
The main control module is connect with the control terminal of the first gating chip, to control the integration module in integration phase
Switch between reseting stage.
In the intelligent humidity detection device of the present invention based on integral operation, in integration phase, described first
Gating chip will be isolated between pin Z and pin Z1, the input terminal of control module connection and pin X be connected, the capacitor
C23, resistance R20 and the first operational amplifier constitute integral unit and charge to capacitor C23；
In reseting stage, the first gating chip is by pin Z and pin Z1 connection, to discharge capacitor C23.
In the intelligent humidity detection device of the present invention based on integral operation, the comparison module includes the second fortune
Calculate amplifier；
The inverting input terminal of the second operational amplifier is connect with the output end of first operational amplifier；
The normal phase input end of the second operational amplifier also accesses the first reference voltage.
It further include latch in the intelligent humidity detection device of the present invention based on integral operation, described second
The output end of operational amplifier is connect with an input terminal of the latch, the output end of the latch and another input terminal
It is connected to the main control module.
In the intelligent humidity detection device of the present invention based on integral operation, each humistor unit packet
Include humistor, divider resistance R1, divider resistance R6 and filter capacitor C1；
The both ends of the humistor are connect with the both ends of the divider resistance R6 respectively, one end access of the divider resistance R1
Predeterminated voltage, the other end of the divider resistance R1 are connect with one end of the divider resistance R6, and the divider resistance R6's is another
One end is connect with one end of the filter capacitor C1, the other end ground connection of the filter capacitor C1；The divider resistance R6 and
The voltage of the common node of the filter capacitor C1 is the detectable voltage signals.
In the intelligent humidity detection device of the present invention based on integral operation, the main control module respectively with it is each
The common node of the divider resistance R1 and divider resistance R6 of the humistor unit are connected to detect corresponding humistor
It is no to have in connection.
A kind of intelligent humidity detection device based on integral operation provided by the invention passes through four humistor lists of setting
Member；Channel to channel adapter is connect respectively respectively by at least two wet sensitives electricity at least two humistors unit
Hinder the detectable voltage signals output of a humistor unit in unit；Signal amplifier, input terminal and the channel are selected
The output end connection of device is selected, the detectable voltage signals for exporting channel to channel adapter are amplified to obtain amplified signal；Integrate mould
Block connect to obtain the amplified signal of the signal amplifier output with the output end of the signal amplifier, and puts to this
Big signal carries out integral operation；Comparison module is connect with the integration module with defeated after the integral operation by the integration module
Integral voltage out is compared with predeterminated voltage, and exports comparison result signal according to comparison result；Main control module, with institute
Comparison module connection is stated, the main control module is used to that correspondence to be calculated according to the comparison result signal that the comparison module exports
The humidity value of humistor unit detection；To realize the quick and accurate detection to humidity, amplify due to using signal
Module, and Humidity Detection signal is integrated using integration module, further improve detection accuracy.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the intelligent humidity detection device based on integral operation in the embodiment of the present invention.
Fig. 2 is a kind of detailed construction signal of the intelligent humidity detection device based on integral operation in the embodiment of the present invention
Figure.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Fig. 1 is please referred to, Fig. 1 is the structure of the intelligent humidity detection device based on integral operation in one embodiment of the invention
Schematic diagram, 1, a kind of intelligent humidity detection device based on integral operation, comprising: four humistor units 10, channel choosing
Select device 20, signal amplifier 30, integration module 40, comparison module 50 and main control module 60.
Wherein, each humistor unit 10 is used to detection temperature and generates corresponding detectable voltage signals.Channel choosing
Device 20 is selected to be connect at least two humistors unit 10 respectively respectively by at least two humistors unit 10
In a humistor unit 10 detectable voltage signals output；The input terminal of signal amplifier 30 and the channel to channel adapter
20 output end connection, the detectable voltage signals for exporting channel to channel adapter 20 are amplified to obtain amplified signal；Integrate mould
Block 40 is connect to obtain the amplified signal that the signal amplifier 30 exports with the output end of the signal amplifier 30, and to this
Amplified signal carries out integral operation；Comparison module 50 is connect with by the integral operation of the integration module 40 with the integration module 40
The integral voltage exported afterwards is compared with predeterminated voltage, and exports comparison result signal according to comparison result；Main control module 60
It is connect with the comparison module 50, the main control module 60 is used to obtain corresponding humistor according to the comparison result signal
The humidity value that unit 10 detects, specially according to the duration of the high level in the comparison result signal of the output of comparison module 50
Calculate the humidity value that corresponding humistor unit 10 detects.
Wherein, referring to Fig. 2, which connect with the control terminal of the channel to channel adapter 20, to be used for
The channel to channel adapter 20 is controlled to export the detectable voltage signals of corresponding humistor unit 10 to the integration module 40.The master
It controls module 60 and uses single-chip microcontroller, model AT89S51RT2, naturally it is also possible to single-chip microcontroller or micro- place using other models
Manage chip.Main control module 60 that is to say divider resistance of the chip processor AT89S51 RT2 respectively with each humistor unit 10
The common node of R1 and divider resistance R6 are connected to detect whether corresponding humistor has in connection.
Specifically, each humistor unit 10 includes humistor, divider resistance R1, divider resistance R6 and filtered electrical
Hold C1；The both ends of humistor are connect with the both ends of divider resistance R6 respectively, for example, the terminal J11 and J12 in figure respectively with
The both ends of one humistor connect, and terminal J21 and J22 are connect with the both ends of a humistor respectively, terminal J31 and J32
It is connect respectively with the both ends of a humistor, terminals P 41 and 32 is connect with the both ends of a humistor respectively.The divider resistance
Predeterminated voltage, such as 2.5V, one end company of the other end of the divider resistance R1 and the divider resistance R6 are accessed in one end of R1
It connects, the other end of the divider resistance R6 is connect with one end of the filter capacitor C1, another termination of the filter capacitor C1
Ground；The voltage of the common node of the divider resistance R6 and the filter capacitor C1 is the detectable voltage signals.Also, it is every
One end that the humistor of one humistor unit 10 is connect with filter capacitor C1 also that is to say the monolithic with the main control module 60
Machine AT89S51RT2 connection.Specifically, terminal J12, J22, J32 and J42 in figure are respectively with chip processor AT89S51 RT2's
Pin P00, P01, P02, P03 are connected correspondingly.
Wherein, which includes that the second gating chip S2 and third gate chip S3；Described at least two
The quantity of humistor unit 10 is four.
Wherein, the third gating chip S3 two input terminals respectively with two in four humistor units 10
Humistor unit 10 connects correspondingly, the output end and four humistor lists of the third gating chip S3
Other two humistor units 10 in member 10 are connect correspondingly with three input terminals of the second gating chip S2；
The output end of the second gating chip S2 is connect with the input terminal of the signal amplifier 30；It is described second gating chip S2 with
And the control terminal of the third gating chip S3 is connect with the main control module 60 respectively.
Wherein, the second gating chip S2 and third gating chip S3 can use 4053 chip of model.This
The VEE pin of three gating chip S3 is grounded by capacitor C26, and INH pin and GND pin are grounded, which gates chip
Gating control pin A, B, C of S3 is connect with the main control module 60 pin P20, P21 and P22 correspondingly respectively.This
The pin X1 of three gating chip S3 is connect with the terminals P 32, and the pin Y1 of third gating chip S3 is connect with the terminals P 42.
Wherein, pin X1, Y1 and Z1 of third gating chip S3 is the signal input pin.Third gating chip S3's draws
Foot X that is to say that gating output pin and the signal input part of second gating chip S2 that is to say that pin Z1 is connect.The master control mould
Block 60 gates chip S3's by controlling the level for exporting pin A, B, C for gating chip S3 to the third to control the third
Strobe case.
This second gating chip S2 other two quotation marks input terminal that is to say pin X1 and pin Y1 respectively with terminal
J12 and terminal J22 connection.The gating output pin of second gating chip S2 that is to say pin X and the signal amplifier 30
Input terminal connection.Pin A, B, C of second gating chip S2 is connect with main control module 60 pin P15, P16, P17 respectively.
The main control module 60 by control this export to this second gating chip S2 pin A, B, C level come control this second gating
The strobe case of chip S2.The signal amplifier 30 can be realized using normal signal amplifying circuit in the prior art, herein
It does not repeat.The integration module 40 includes the first gating chip U6 and integral unit, and described first gates chip U6 and the product
Sub-unit connection, the main control module 60 are connect with the control terminal of the first gating chip through first gating unit U6
Switch to control the integral unit between integration phase and reseting stage.Specifically, the integral unit include capacitor C23,
Resistance R20 and the first operational amplifier F2；The inverting input terminal of first operational amplifier F2 respectively with the capacitor C23
The normal phase input end of the connection of the first end of one end and the resistance R20, the first operational amplifier F2 accesses the first benchmark
Voltage, the output end of the first operational amplifier F2 second end with the comparison module 50 and the capacitor C23 respectively
The pin Z of connection, the first gating chip S1 is connect with the second end of the capacitor C23, the first gating chip S1's
Pin Z1 is connect with the first end of the capacitor C23, and the second of the pin X and the resistance R20 of the first gating chip S1
One input terminal of end connection, the first gating chip is connect with the output end of the signal amplifier 30；The main control module
60 connect with the control terminals of the first gating chip U6, to control the integration module 40 in integration phase and reseting stage
Between switch.
In integration phase, it is described first gating chip will between pin Z and pin Z1 isolation and it is hanging, mould will be controlled
The input terminal and pin X of block connection are connected, and capacitor C23, resistance R20 and the first operational amplifier constitute integral unit simultaneously
It charges to capacitor C23；In reseting stage, the first gating chip is by pin Z and pin Z1 connection, to the electricity
Hold C23 to discharge.
Wherein, which includes second operational amplifier F3, filter capacitor C15 and filter capacitor C18；It is described
The inverting input terminal of second operational amplifier F3 is connect with the output end of the first operational amplifier F2, and second operation is put
The normal phase input end of big device F3 is connect with one end of one end of the filter capacitor C15 and filter capacitor C18 respectively, the filter
The other end of wave capacitor C15 and the other end ground connection of filter capacitor C18；The normal phase input end of second operational amplifier F3 also connects
Enter the first reference voltage.
In some embodiments, which further includes including latch F4 and resistance R27, second operation are put
The output end of big device F3 is connect with one end of the resistance R27, and the one of the other end of the resistance R27 and the latch F4 is defeated
Enter end connection, the output end and another input terminal of the latch F4 connect with the main control module 60, specially with the master
Control the pin P16 connection of module 60.
A kind of intelligent humidity detection device based on integral operation provided by the invention passes through four humistor lists of setting
Member；Channel to channel adapter is connect respectively respectively by at least two wet sensitives electricity at least two humistors unit
Hinder the detectable voltage signals output of a humistor unit in unit；Signal amplifier, input terminal and the channel are selected
The output end connection of device is selected, the detectable voltage signals for exporting channel to channel adapter are amplified to obtain amplified signal；Integrate mould
Block connect to obtain the amplified signal of the signal amplifier output with the output end of the signal amplifier, and puts to this
Big signal carries out integral operation；Comparison module is connect with the integration module with defeated after the integral operation by the integration module
Integral voltage out is compared with predeterminated voltage, and exports comparison result signal according to comparison result；Main control module, with institute
Comparison module connection is stated, the main control module is used to that correspondence to be calculated according to the comparison result signal that the comparison module exports
The humidity value of humistor unit detection；To realize the quick and accurate detection to humidity, amplify due to using signal
Module, and Humidity Detection signal is integrated using integration module, further improve detection accuracy.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (9)
1. a kind of intelligent humidity detection device based on integral operation characterized by comprising
Four humistor units；
Channel to channel adapter is connect respectively respectively by at least two wet sensitives electricity at least two humistors unit
Hinder the detectable voltage signals output of a humistor unit in unit；
Signal amplifier, input terminal are connect with the output end of the channel to channel adapter, the inspection for exporting channel to channel adapter
Voltage signal amplification is surveyed to obtain amplified signal；
Integration module is connect to obtain the amplification letter of the signal amplifier output with the output end of the signal amplifier
Number, and integral operation is carried out to the amplified signal；
Comparison module is connect with the integration module, the integral voltage for exporting after the integral operation by the integration module
It is compared with predeterminated voltage, and comparison result signal is exported according to comparison result；
Main control module is connect with the comparison module, and the main control module is used for the comparison exported according to the comparison module
The humidity value of corresponding humistor unit detection is calculated in consequential signal.
2. the intelligent humidity detection device according to claim 1 based on integral operation, which is characterized in that each described wet
Quick resistance unit includes humistor, divider resistance R1, divider resistance R6 and filter capacitor C1；
The both ends of the humistor are connect with the both ends of the divider resistance R6 respectively, one end access of the divider resistance R1
Predeterminated voltage, the other end of the divider resistance R1 are connect with one end of the divider resistance R6, and the divider resistance R6's is another
One end is connect with one end of the filter capacitor C1, the other end ground connection of the filter capacitor C1；The divider resistance R6 and
The voltage of the common node of the filter capacitor C1 is the detectable voltage signals.
3. the intelligent humidity detection device according to claim 2 based on integral operation, which is characterized in that the master control mould
Block is connect respectively to detect pair with the common node of the divider resistance R1 and divider resistance R6 of each humistor unit
Answer whether humistor has in connection.
4. the intelligent humidity detection device according to claim 3 based on integral operation, which is characterized in that described four
The reference resistor value of the humistor of a humistor unit is sequentially increased.
5. the intelligent humidity detection device according to claim 4 based on integral operation, which is characterized in that the channel choosing
Selecting device includes the second gating chip and third gating chip；The quantity of at least two humistors unit is four；
Two input terminals of third gating chip respectively with two humistor lists in four humistor units
Member connects correspondingly, the output end of third gating chip and other two in four humistor units
Humistor unit is connect correspondingly with three input terminals of the second gating chip；Described second gates the defeated of chip
Outlet is connect with the input terminal of the signal amplifier；
The control terminal of the second gating chip and third gating chip is connected to the main control module respectively.
6. the intelligent humidity detection device according to claim 5 based on integral operation, which is characterized in that the integral mould
Block includes the first gating chip and integral unit, and the first gating chip is connect with the integral unit, the master control mould
Block is connect with the control terminal of the first gating chip to be integrated by first gating unit to control the integral unit
Switch between stage and reseting stage.
7. the intelligent humidity detection device according to claim 6 based on integral operation, which is characterized in that the integral is single
Member includes capacitor C23, resistance R20 and the first operational amplifier；
The inverting input terminal of first operational amplifier respectively with the first end of the capacitor C23 and the resistance R20
The normal phase input end of first end connection, first operational amplifier accesses the first reference voltage, first operational amplifier
Output end connect respectively with the second end of the comparison module and the capacitor C23, it is described first gating chip pin Z
It being connect with the second end of the capacitor C23, the pin Z1 of the first gating chip is connect with the first end of the capacitor C23,
It is described first gating chip pin X connect with the second end of the resistance R20, it is described first gate chip an input terminal and
The output end of the signal amplifier connects；
The main control module is connect with the control terminal of the first gating chip, to control the integration module in integration phase
Switch between reseting stage；The first gating chip will be isolated between pin Z and pin Z1, by control module connection
Input terminal and pin X are connected, and capacitor C23, resistance R20 and the first operational amplifier constitute integral unit and to capacitor
C23 charges；
In reseting stage, the first gating chip is by pin Z and pin Z1 connection, to discharge capacitor C23.
8. the intelligent humidity detection device according to claim 7 based on integral operation, which is characterized in that the relatively mould
Block includes second operational amplifier；
The inverting input terminal of the second operational amplifier is connect with the output end of first operational amplifier；
The normal phase input end of the second operational amplifier also accesses the first reference voltage.
9. the intelligent humidity detection device according to claim 8 based on integral operation, which is characterized in that further include latching
Device, the output end of the second operational amplifier are connect with an input terminal of the latch, the output end of the latch with
And another input terminal is connected to the main control module.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736491A (en) * | 2019-11-29 | 2020-01-31 | 佛山市川东磁电股份有限公司 | detection device based on temperature and humidity sensor and detection method thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58105046A (en) * | 1981-12-18 | 1983-06-22 | Hitachi Ltd | Sensing element for temperature and humidity |
| CN1080741A (en) * | 1992-12-25 | 1994-01-12 | 南京航空航天大学 | Multi-channel intelligent damp-warm syndrome degree measurement and control instrument |
| CN1598509A (en) * | 2004-07-21 | 2005-03-23 | 中国科学院广州电子技术研究所 | Temp. moisture monitoring meter and method for correcting error of platinum thermal resistance |
| US20090090626A1 (en) * | 2006-10-12 | 2009-04-09 | Holt Christopher T | Hydrogen sensitive composite material, hydrogen gas sensor, and sensor for detecting hydrogen and other gases with improved baseline resistance |
| CN102435639A (en) * | 2011-09-30 | 2012-05-02 | 郑州炜盛电子科技有限公司 | Method and system for testing parameters of humidity sensitive element |
| CN103868955A (en) * | 2014-04-09 | 2014-06-18 | 西南大学 | Portable in-automobile gas detection system and method |
| CN204630969U (en) * | 2015-04-24 | 2015-09-09 | 中国科学院半导体研究所 | Measure the device of soil moisture content and temperature |
| CN105806900A (en) * | 2014-08-20 | 2016-07-27 | 云南师范大学 | Humidity detection circuit |
| CN205786830U (en) * | 2016-05-11 | 2016-12-07 | 深圳市优必选科技有限公司 | circuit board assembly detection circuit |
| CN205898730U (en) * | 2016-07-31 | 2017-01-18 | 河北工业大学 | Multichannel polytypic sensor capability test system |
| CN207035670U (en) * | 2017-05-23 | 2018-02-23 | 南京创维家用电器有限公司 | A kind of temperature and humidity acquisition module and wind cooling refrigerator |
| CN108535151A (en) * | 2018-01-24 | 2018-09-14 | 江苏大学 | A kind of pesticide droplet deposition amount detection device based on wireless sensing |
| CN109142456A (en) * | 2018-10-19 | 2019-01-04 | 台州市皓仔邦工业设计有限公司 | Humidity detector based on integral operation |
| CN109142455A (en) * | 2018-10-19 | 2019-01-04 | 长兴恒大电子材料有限公司 | Humidity detector based on integral operation |
-
2018
- 2018-10-23 CN CN201811232849.6A patent/CN109298029A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58105046A (en) * | 1981-12-18 | 1983-06-22 | Hitachi Ltd | Sensing element for temperature and humidity |
| CN1080741A (en) * | 1992-12-25 | 1994-01-12 | 南京航空航天大学 | Multi-channel intelligent damp-warm syndrome degree measurement and control instrument |
| CN1598509A (en) * | 2004-07-21 | 2005-03-23 | 中国科学院广州电子技术研究所 | Temp. moisture monitoring meter and method for correcting error of platinum thermal resistance |
| US20090090626A1 (en) * | 2006-10-12 | 2009-04-09 | Holt Christopher T | Hydrogen sensitive composite material, hydrogen gas sensor, and sensor for detecting hydrogen and other gases with improved baseline resistance |
| CN102435639A (en) * | 2011-09-30 | 2012-05-02 | 郑州炜盛电子科技有限公司 | Method and system for testing parameters of humidity sensitive element |
| CN103868955A (en) * | 2014-04-09 | 2014-06-18 | 西南大学 | Portable in-automobile gas detection system and method |
| CN105806900A (en) * | 2014-08-20 | 2016-07-27 | 云南师范大学 | Humidity detection circuit |
| CN204630969U (en) * | 2015-04-24 | 2015-09-09 | 中国科学院半导体研究所 | Measure the device of soil moisture content and temperature |
| CN205786830U (en) * | 2016-05-11 | 2016-12-07 | 深圳市优必选科技有限公司 | circuit board assembly detection circuit |
| CN205898730U (en) * | 2016-07-31 | 2017-01-18 | 河北工业大学 | Multichannel polytypic sensor capability test system |
| CN207035670U (en) * | 2017-05-23 | 2018-02-23 | 南京创维家用电器有限公司 | A kind of temperature and humidity acquisition module and wind cooling refrigerator |
| CN108535151A (en) * | 2018-01-24 | 2018-09-14 | 江苏大学 | A kind of pesticide droplet deposition amount detection device based on wireless sensing |
| CN109142456A (en) * | 2018-10-19 | 2019-01-04 | 台州市皓仔邦工业设计有限公司 | Humidity detector based on integral operation |
| CN109142455A (en) * | 2018-10-19 | 2019-01-04 | 长兴恒大电子材料有限公司 | Humidity detector based on integral operation |
Non-Patent Citations (4)
| Title |
|---|
| 徐锡威: "挤出机温度控制板电路剖析", 《华南师范大学学报（自然科学版）》 * |
| 许卫等: "双积分AD转换设计", 《豆丁网HTTPS://WWW.DOCIN.COM/TOUCH/DETAIL.DO?ID=722217790》 * |
| 郑长勇等: "单片机在温度检测与控制中的应用", 《电子质量》 * |
| 黄涛等: "基于单片机的新型温湿度检测与控制系统设计", 《廊坊师范学院学报（自然科学版）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110736491A (en) * | 2019-11-29 | 2020-01-31 | 佛山市川东磁电股份有限公司 | detection device based on temperature and humidity sensor and detection method thereof |
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