CN208313924U - A kind of turbidity on-line analyzer based on analog quantity - Google Patents
A kind of turbidity on-line analyzer based on analog quantity Download PDFInfo
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- CN208313924U CN208313924U CN201820196040.1U CN201820196040U CN208313924U CN 208313924 U CN208313924 U CN 208313924U CN 201820196040 U CN201820196040 U CN 201820196040U CN 208313924 U CN208313924 U CN 208313924U
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Abstract
The utility model relates to a kind of VOC gas in-line analyzer, in particular to a kind of turbidity on-line analyzer based on analog quantity.The signal input part of the single chip machine controlling circuit of the utility model is connected by relay circuit with the power output end of the first power supply circuit, the signal input part of single chip machine controlling circuit is connected with the signal output end of sensor signal amplifying circuit, the signal input part of the sensor signal amplifying circuit is connected with the signal output end of signal acquisition circuit, and the power input of sensor signal amplifying circuit is connected with the power output end of the second power supply circuit.The utility model can accurately measure the content of VOC gas, and on-site test can be carried out to faint VOC gas, and the VOC gas that can be will test are shown and are alarmed, the testing results of VOC gas can be printed simultaneously, and the utility model high reliablity, high sensitivity, low in cost, stability is good.
Description
Technical field
The utility model relates to a kind of VOC gas in-line analyzer, in particular to a kind of turbidity on-line based on analog quantity
Analyzer.
Background technique
VOC gas are volatile organic compounds, and VOC gas turbidity on-line analyzer is normally used for l Museum Exhibition Hal etc.
Occasion is monitored VOC gas, being capable of effective protection historical relic and scene.
Existing VOC gas turbidity on-line analyzer is easy the interference by external environment, not so as to cause measurement result
Accurately, and at high cost, stability is bad, therefore one kind is of simple structure and low cost, stability is good there is an urgent need to provide
VOC gas turbidity on-line analyzer.
Utility model content
The utility model in order to overcome the above-mentioned deficiencies of the prior art, provides a kind of of simple structure and low cost, stable
The good VOC gas turbidity on-line analyzer based on analog quantity of property.
Solve the problems, such as techniques discussed above, the technical solution that the utility model is taken are as follows:
A kind of turbidity on-line analyzer based on analog quantity includes single chip machine controlling circuit, the single chip machine controlling circuit
Signal input part is connected by relay circuit with the power output end of the first power supply circuit, the signal of single chip machine controlling circuit
Input terminal is connected with the signal output end of sensor signal amplifying circuit, the signal input of the sensor signal amplifying circuit
End is connected with the signal output end of signal acquisition circuit, the power input of sensor signal amplifying circuit and the second power supply electricity
The power output end on road is connected, the signal output end of the single chip machine controlling circuit respectively with printer communication circuit, display
Circuit, warning circuit, voltage-current converter circuit signal input part be connected.
Preferably, the single chip machine controlling circuit includes control chip, the model of the control chip
STM32F103RCT6 chip, pin 38, the pin 37 of the STM32F103RCT6 chip are all connected with sensor signal amplification electricity
The signal output end on road, pin 51, pin 42, pin 52, the pin 43 of STM32F103RCT6 chip are all connected with printer communication
The signal input part of circuit, the pin 20 of STM32F103RCT6 chip connect the signal input part of voltage-current converter circuit.
Preferably, the sensor signal amplifying circuit includes the first signal amplifier A1, first signal amplifier
The positive signal input terminal of A1 is separately connected one end of one end of the 5th resistance R5, the 11st capacitor C11, the 11st capacitor
The other end of C11 is grounded, and the other end of the 5th resistance R5 is separately connected the cathode and external interface of first diode D1,
The negative signal input terminal of the plus earth of the first diode D1, the first signal amplifier A1 is separately connected the first letter
Number signal output end of amplifier A1 and one end of the 6th resistance R6, the other end of the 6th resistance R6 are separately connected the tenth
One end of two capacitor C12 and the positive signal input terminal of second signal amplifier A2, the other end of the 12nd capacitor C12
Ground connection, the negative signal input terminal of the second signal amplifier A2 are separately connected the signal output end of second signal amplifier A2
And the pin 1 of model ADS1100A0IDBVR chip, the pin 3 of ADS1100A0IDBVR chip are separately connected the 7th resistance
One end of R7 and the pin 38 of STM32F103RCT6 chip, the other end of the 7th resistance R7 are separately connected the 8th resistance
One end of R8 and power supply, the other end of the 8th resistance R8 be separately connected ADS1100A0IDBVR chip pin 6 and
The pin 5 of the pin 37 of STM32F103RCT6 chip, the ADS1100A0IDBVR chip is separately connected the 13rd capacitor C13
One end and power supply, the 13rd capacitor C13 the other end ground connection.
Preferably, the printer communication circuit includes SP3232EEY-L/TR chip, the SP3232EEY-L/TR core
The pin 1 of piece connects one end of the 14th capacitor C14, and the other end of the 14th capacitor C14 connects SP3232EEY-L/TR
The pin 3 of chip, the pin 4 of the SP3232EEY-L/TR chip connect one end of the 15th capacitor C15, the 15th electricity
Hold the pin 5 of the other end connection SP3232EEY-L/TR chip of C15, the pin 11 of SP3232EEY-L/TR chip, pin 10,
Pin 12, pin 9 are separately connected one end of the 9th resistance R9, one end of the tenth resistance R10, one end of eleventh resistor R11,
One end of 12 resistance R12, the other end of the 9th resistance R9, the other end of the tenth resistance R10, eleventh resistor R11
The other end, twelfth resistor R12 the other end be separately connected the pin 51 of STM32F103RCT6 chip, pin 42, pin 52,
Pin 43, the pin 16 of SP3232EEY-L/TR chip are separately connected one end and the power supply of the 16th capacitor C16, and the described tenth
The other end of six capacitor C16 is grounded, and the pin 2 of SP3232EEY-L/TR chip is grounded by the 17th capacitor C17,
Pin 14, the pin 13 of SP3232EEY-L/TR chip are all connected with printer, pin 7, the pin 8 of SP3232EEY-L/TR chip
It is all connected with display, the pin 6 of SP3232EEY-L/TR chip is grounded by the 18th capacitor C18.
Preferably, first power supply circuit includes power conversion chip, the model of the power conversion chip
XC6206 chip.
Further, the model of the first signal amplifier A1 and second signal amplifier A2 are LM358.
Further, the display circuit is liquid crystal display.
Further, the warning circuit is flashing light and/or buzzer.
Further, this VOC gas turbidity on-line analyzer further includes storage circuit, the signal input of the storage circuit
End is connected with the signal output end of single chip machine controlling circuit.
The utility model has the following beneficial effects:
(1), the utility model includes single chip machine controlling circuit, relay circuit, sensor signal amplifying circuit, printer
Telecommunication circuit, display circuit, warning circuit, signal acquisition circuit, voltage-current converter circuit, the first power supply circuit, second supply
Circuit, the utility model can accurately measure the content of VOC gas, and can faint VOC gas be carried out with live inspection
It surveys, and the VOC gas that can be will test are shown and alarmed, while can print the testing result of VOC gas, and
And the utility model high reliablity, high sensitivity, low in cost, stability is good.
(2), the single chip machine controlling circuit includes control chip, the model STM32F103RCT6 of the control chip
Chip, STM32F103RCT6 chip processing signal speed is fast, at low cost, STM32F103RCT6 chip and its peripheral circuit
Structure is simple, is easy to build.
(3), the signal output end of the voltage-current converter circuit is connected with external equipment, can will test
VOC gas information notifies user by way of short message, plays the role of dual-alarm.
Detailed description of the invention
Below to width attached drawing every in the utility model specification expression content and figure in label be briefly described:
Fig. 1 is the structure principle chart of the utility model；
Fig. 2 is the schematic diagram of the single chip machine controlling circuit of the utility model；
Fig. 3 is the schematic diagram of the sensor signal amplifying circuit of the utility model；
Fig. 4 is the schematic diagram of the printer communication circuit of the utility model.
Appended drawing reference meaning in figure is as follows:
10-20-relay circuits of single chip machine controlling circuit
30-sensor signal amplifying circuit 40-printer communication circuits
50-60-warning circuits of display circuit
70-80-voltage-current converter circuits of signal acquisition circuit
90-the first the 100-the second power supply circuit of power supply circuit
Specific embodiment
Below against attached drawing, to the shape of for example related each component of specific embodiment of the present utility model, construction, each
The effect of mutual alignment and connection relationship, each section between part and working principle etc. are described in further detail:
As shown in Figure 1, a kind of turbidity on-line analyzer based on analog quantity includes single chip machine controlling circuit 10, the monolithic
The signal input part of machine control circuit 10 is connected by relay circuit 20 with the power output end of the first power supply circuit 90, single
The signal input part of piece machine control circuit 10 is connected with the signal output end of sensor signal amplifying circuit 30, the sensor
The signal input part of signal amplification circuit 30 is connected with the signal output end of signal acquisition circuit 70, sensor signal amplification electricity
The power input on road 30 is connected with the power output end of the second power supply circuit 100, the letter of the single chip machine controlling circuit 10
Number output end respectively with printer communication circuit 40, display circuit 50, warning circuit 60, voltage-current converter circuit 80 signal
Input terminal is connected, this VOC gas turbidity on-line analyzer further includes storage circuit, the signal input part of the storage circuit with
The signal output end of single chip machine controlling circuit 10 is connected.
Further, the display circuit 50 is liquid crystal display, and the warning circuit 60 is flashing light, and storage circuit is
Eeprom memory.
The relay circuit 20 includes magnet and switch, plays control this VOC gas turbidity on-line analyzer on-off
Effect, after the signal input part of the relay circuit 20 accesses power supply, switch connection, single chip machine controlling circuit 10 is powered on, this
VOC gas turbidity on-line analyzer is started to work.
Specifically, the signal acquisition circuit is gas sensor, for acquiring VOC gas, and by collected VOC gas
Body is sent to sensor signal amplifying circuit 30 and amplifies.
As shown in Fig. 2, the single chip machine controlling circuit 10 includes control chip, the model of the control chip
STM32F103RCT6 chip, pin 38, the pin 37 of the STM32F103RCT6 chip are all connected with sensor signal amplification electricity
The signal output end on road 30, it is logical that pin 51, pin 42, pin 52, the pin 43 of STM32F103RCT6 chip are all connected with printer
Believe that the signal input part of circuit 40, the signal that the pin 20 of STM32F103RCT6 chip connects voltage-current converter circuit 80 are defeated
Enter end.
As shown in figure 3, the sensor signal amplifying circuit 30 includes the first signal amplifier A1, first signal is put
The positive signal input terminal of big device A1 is separately connected one end of one end of the 5th resistance R5, the 11st capacitor C11, and the described 11st
The other end of capacitor C11 is grounded, and the other end of the 5th resistance R5 is separately connected cathode and the outside of first diode D1
The negative signal input terminal of interface, the plus earth of the first diode D1, the first signal amplifier A1 is separately connected
The signal output end of first signal amplifier A1 and one end of the 6th resistance R6, the other end of the 6th resistance R6 connect respectively
One end of the 12nd capacitor C12 and the positive signal input terminal of second signal amplifier A2 are connect, the 12nd capacitor C12's
Other end ground connection, the negative signal input terminal of the second signal amplifier A2 are separately connected the signal of second signal amplifier A2
The pin 1 of output end and model ADS1100A0IDBVR chip, the pin 3 of ADS1100A0IDBVR chip are separately connected
One end of seven resistance R7 and the pin 38 of STM32F103RCT6 chip, the other end of the 7th resistance R7 are separately connected
The other end of one end of eight resistance R8 and power supply, the 8th resistance R8 is separately connected the pin of ADS1100A0IDBVR chip
The pin 37 of 6 and STM32F103RCT6 chip, the pin 5 of the ADS1100A0IDBVR chip are separately connected the 13rd electricity
Hold one end and the power supply of C13, the other end ground connection of the 13rd capacitor C13.
As shown in figure 4, the printer communication circuit 40 includes SP3232EEY-L/TR chip, the SP3232EEY-L/
The pin 1 of TR chip connects one end of the 14th capacitor C14, and the other end of the 14th capacitor C14 connects SP3232EEY-
The pin 3 of L/TR chip, one end of the 15th capacitor C15 of the connection of pin 4 of the SP3232EEY-L/TR chip, the described tenth
The pin 5 of the other end connection SP3232EEY-L/TR chip of five capacitor C15, the pin 11 of SP3232EEY-L/TR chip draw
Foot 10, pin 12, pin 9 be separately connected one end of the 9th resistance R9, one end of the tenth resistance R10, eleventh resistor R11 one
It holds, one end of twelfth resistor R12, the other end, the other end of the tenth resistance R10, eleventh resistor of the 9th resistance R9
The other end of R11, the other end of twelfth resistor R12 are separately connected the pin 51 of STM32F103RCT6 chip, pin 42, draw
The pin 16 of foot 52, pin 43, SP3232EEY-L/TR chip is separately connected one end and the power supply of the 16th capacitor C16, institute
The other end ground connection of the 16th capacitor C16 is stated, the pin 2 of SP3232EEY-L/TR chip is grounded by the 17th capacitor C17,
Pin 14, the pin 13 of SP3232EEY-L/TR chip are all connected with printer, pin 7, the pin 8 of SP3232EEY-L/TR chip
It is all connected with display, the pin 6 of SP3232EEY-L/TR chip is grounded by the 18th capacitor C18.
Specifically, the model of the first signal amplifier A1 and second signal amplifier A2 are LM358.
The signal amplifier of the voltage-current converter circuit 80 including model LM324, triode, diode, capacitor,
The components such as resistance, voltage-current converter circuit 80 exports the current signal of 4mA~20mA after converting the voltage into, to will test
To the information warnings of VOC gas be transmitted to user mobile phone.
Second power supply circuit 100 is used to provide 3V for sensor signal amplifying circuit 30 and single chip machine controlling circuit 10
Power supply.
First power supply circuit 90 is for providing the power supply of+24V.
To keep technical solutions of the utility model more clear, below by way of a specific embodiment to the utility model
The course of work is illustrated.
As shown in Figure 1, after the signal input part access power supply of the relay circuit 20, switch connection, single-chip microcontroller control
Circuit 10 powers on, this VOC gas turbidity on-line analyzer is started to work, and the signal acquisition circuit acquires VOC gas in real time, first
First collected VOC gas are amplified, then are converted, are sent to sensor signal amplification electricity after being converted into digital signal
Road 30 amplifies, and the sensor signal amplifying circuit 30 is for amplifying signal, the single chip machine controlling circuit 10
Judge whether digital signal is greater than internal pre-set threshold value, if it exceeds the threshold, control flashing light or buzzer warning, thus
Reminding the current VOC gas of staff is more than that threshold value and real-time control liquid crystal display show VOC gas information, single-chip microcontroller
Control circuit 10 control voltage-current converter circuit 80 convert the voltage into rear output current signal, for example, when voltage be 0V when pair
4mA electric current should be exported, corresponding output 20mA electric current, voltage-current converter circuit 80 pass through signal conversion equipment when voltage is 3V
Current signal is converted, the information of conversion is finally passed through into SMS message transmission to user mobile phone.Meanwhile eeprom memory rises
The effect of storing data is arrived.
In conclusion the utility model can accurately measure the content of VOC gas, and can be to faint VOC gas
On-site test is carried out, and the VOC gas that can be will test are shown and alarmed, while can print VOC gas
Testing result, and the utility model high reliablity, high sensitivity, low in cost, stability is good.
The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize
Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field
For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical
In novel protection scope.
Claims (9)
1. a kind of turbidity on-line analyzer based on analog quantity, it is characterised in that: including single chip machine controlling circuit (10), the list
The signal input part of piece machine control circuit (10) passes through the power output end of relay circuit (20) and the first power supply circuit (90)
It is connected, the signal input part of single chip machine controlling circuit (10) is connected with the signal output end of sensor signal amplifying circuit (30)
It connects, the signal input part of the sensor signal amplifying circuit (30) is connected with the signal output end of signal acquisition circuit (70)
It connects, the power input of sensor signal amplifying circuit (30) is connected with the power output end of the second power supply circuit (100), institute
The signal output end for stating single chip machine controlling circuit (10) is electric with printer communication circuit (40), display circuit (50), alarm respectively
Road (60), voltage-current converter circuit (80) signal input part be connected.
2. a kind of turbidity on-line analyzer based on analog quantity as described in claim 1, it is characterised in that: the single-chip microcontroller control
Circuit (10) processed includes control chip, the model STM32F103RCT6 chip of the control chip, described
Pin 38, the pin 37 of STM32F103RCT6 chip are all connected with the signal output end of sensor signal amplifying circuit (30),
Pin 51, pin 42, pin 52, the pin 43 of STM32F103RCT6 chip are all connected with the signal of printer communication circuit (40)
Input terminal, the pin 20 of STM32F103RCT6 chip connect the signal input part of voltage-current converter circuit (80).
3. a kind of turbidity on-line analyzer based on analog quantity as claimed in claim 2, it is characterised in that: the sensor letter
Number amplifying circuit (30) includes the first signal amplifier A1, and the positive signal input terminal of the first signal amplifier A1 connects respectively
One end of the 5th resistance R5, one end of the 11st capacitor C11 are connect, the other end of the 11st capacitor C11 is grounded, and the described 5th
The other end of resistance R5 is separately connected the cathode and external interface of first diode D1, and the anode of the first diode D1 connects
Ground, the negative signal input terminal of the first signal amplifier A1 be separately connected the signal output end of the first signal amplifier A1 with
And the 6th resistance R6 one end, the other end of the 6th resistance R6 is separately connected one end and second of the 12nd capacitor C12
The positive signal input terminal of signal amplifier A2, the other end ground connection of the 12nd capacitor C12, the second signal amplifier
The negative signal input terminal of A2 is separately connected the signal output end and model of second signal amplifier A2
The pin 1 of ADS1100A0IDBVR chip, the pin 3 of ADS1100A0IDBVR chip be separately connected one end of the 7th resistance R7 with
And the pin 38 of STM32F103RCT6 chip, the other end of the 7th resistance R7 be separately connected one end of the 8th resistance R8 with
And power supply, the other end of the 8th resistance R8 be separately connected ADS1100A0IDBVR chip pin 6 and
The pin 5 of the pin 37 of STM32F103RCT6 chip, the ADS1100A0IDBVR chip is separately connected the 13rd capacitor C13
One end and power supply, the 13rd capacitor C13 the other end ground connection.
4. a kind of turbidity on-line analyzer based on analog quantity as claimed in claim 3, it is characterised in that: the printer is logical
Believe that circuit (40) include SP3232EEY-L/TR chip, the pin 1 of the SP3232EEY-L/TR chip connects the 14th capacitor
One end of C14, the pin 3 of the other end connection SP3232EEY-L/TR chip of the 14th capacitor C14 are described
The pin 4 of SP3232EEY-L/TR chip connects one end of the 15th capacitor C15, and the other end of the 15th capacitor C15 connects
The pin 5 of SP3232EEY-L/TR chip is connect, pin 11, pin 10, pin 12, the pin 9 of SP3232EEY-L/TR chip divide
It Lian Jie not one end of the 9th resistance R9, one end of the tenth resistance R10, one end of eleventh resistor R11, twelfth resistor R12
One end, the other end of the 9th resistance R9, the other end of the tenth resistance R10, the other end of eleventh resistor R11, the 12nd
The other end of resistance R12 is separately connected pin 51, pin 42, pin 52, the pin 43 of STM32F103RCT6 chip,
The pin 16 of SP3232EEY-L/TR chip is separately connected one end and the power supply of the 16th capacitor C16, the 16th capacitor
The other end of C16 is grounded, and the pin 2 of SP3232EEY-L/TR chip is grounded by the 17th capacitor C17, SP3232EEY-L/TR
Pin 14, the pin 13 of chip are all connected with printer, and pin 7, the pin 8 of SP3232EEY-L/TR chip are all connected with display,
The pin 6 of SP3232EEY-L/TR chip is grounded by the 18th capacitor C18.
5. a kind of turbidity on-line analyzer based on analog quantity as claimed in claim 4, it is characterised in that: first power supply
Circuit (90) includes power conversion chip, the model XC6206 chip of the power conversion chip.
6. a kind of turbidity on-line analyzer based on analog quantity as claimed in claim 3, it is characterised in that: first signal
The model of amplifier A1 and second signal amplifier A2 are LM358.
7. a kind of turbidity on-line analyzer based on analog quantity as described in claim 1~6 any one, it is characterised in that:
The display circuit (50) is liquid crystal display.
8. a kind of turbidity on-line analyzer based on analog quantity as claimed in claim 7, it is characterised in that: the warning circuit
It (60) is flashing light and/or buzzer.
9. a kind of turbidity on-line analyzer based on analog quantity as claimed in claim 8, it is characterised in that: this VOC gas is turbid
Spending in-line analyzer further includes storage circuit, the signal input part of the storage circuit and the signal of single chip machine controlling circuit (10)
Output end is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820196040.1U CN208313924U (en) | 2018-02-05 | 2018-02-05 | A kind of turbidity on-line analyzer based on analog quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820196040.1U CN208313924U (en) | 2018-02-05 | 2018-02-05 | A kind of turbidity on-line analyzer based on analog quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208313924U true CN208313924U (en) | 2019-01-01 |
Family
ID=64730884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820196040.1U Active CN208313924U (en) | 2018-02-05 | 2018-02-05 | A kind of turbidity on-line analyzer based on analog quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208313924U (en) |
-
2018
- 2018-02-05 CN CN201820196040.1U patent/CN208313924U/en active Active
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