CN204086246U - A kind of high performance mineral carbon monoxide transducer - Google Patents
A kind of high performance mineral carbon monoxide transducer Download PDFInfo
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- CN204086246U CN204086246U CN201420504744.2U CN201420504744U CN204086246U CN 204086246 U CN204086246 U CN 204086246U CN 201420504744 U CN201420504744 U CN 201420504744U CN 204086246 U CN204086246 U CN 204086246U
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- 229910002091 carbon monoxide Inorganic materials 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 230000005669 field effect Effects 0.000 claims description 31
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000035945 sensitivity Effects 0.000 abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 10
- 238000004891 communication Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 208000001408 Carbon monoxide poisoning Diseases 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 208000005374 Poisoning Diseases 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 208000010513 Stupor Diseases 0.000 description 1
- 208000003443 Unconsciousness Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- -1 fire Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 206010042772 syncope Diseases 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model relates to a kind of high performance mineral carbon monoxide transducer; The technical matters solved is: provide the high performance mineral carbon monoxide transducer that a kind of range of linearity is wider, sensitivity is higher, the response time is shorter, anti-interference degree is higher; The technical scheme adopted is: a kind of high performance mineral carbon monoxide transducer, comprise: processor module, sound and light alarm module, carbonomonoxide concentration acquisition processing module, display remoting module, the multi-system output module and power management module, described power management module comprises anti-interference unit, power supply unit of voltage regulation and DC/DC converting unit, described carbonomonoxide concentration acquisition processing module comprises collecting unit and processing unit, described collecting unit comprises sensitive element U1 and amplifying circuit, and the model of described sensitive element U1 is 4CO-500; The utility model is applicable to colliery and association area thereof.
Description
Technical field
The utility model relates to the technical field of mine sensors, is specifically related to a kind of high performance mineral carbon monoxide transducer.
Background technology
As everyone knows, carbon monoxide is a kind of hypertoxic gas, because its binding ability with haemoglobin in blood is than large 300 times of the adhesion of haemoglobin in oxygen and blood, therefore after the carbon monoxide contained in air is inhaled into human body, haemoglobin in blood can first combine with carbon monoxide, a large amount of anoxics of tissue and cell will be caused, finally cause being poisoned to death; Usually, the symptom of anthracemia be lose consciousness, spasm and fainting suddenly, a few hours of specifically can going into a coma, even round the clock several, severe patient respiratory standstill, be in torpor, and possibility insanity after regaining consciousness, even there is the sequelae such as dull or paralysis; Usually, when the concentration of CO in Air reaches 0.4%, life entity is dead immediately through 20 to 30 minutes, when concentration reaches 1%, life entity is breathed through several times and can be lost consciousness immediately, can cause fatal poisoning within 1 to 2 minute, it serves to show the harm of carbon monoxide to human body.
In field, colliery, because the environment of underground coal mine is more complicated, there is multiple explosive mixed gas, therefore bring many potential safety hazards to coal production, wherein, the harm of carbon monoxide can not be ignored, in recent years, underground coal mine often has carbon monoxide poisoning event to occur, its poison gas source mainly contains blasting fume, fire, gas and dust explosion etc., in order to prevent that the carbonomonoxide concentration of underground coal mine is too high and the personnel that cause injure, most of colliery unit all adopts installs carbon monoxide transducer Real-time Collection carbonomonoxide concentration in down-hole, when finding that concentration gives the alarm the mode of taking measures in time to ensure the life security of staff under mine time higher, and at present conventional mining carbon monoxide transducer mostly performance is lower, there is the range of linearity narrow, sensitivity is low, response time is long, be disturbed the shortcomings such as degree is high, certain limitation and insecurity are brought to the monitoring of carbonomonoxide concentration under mine.
Utility model content
The utility model overcomes the deficiency that prior art exists, and technical matters to be solved is: provide the high performance mineral carbon monoxide transducer that a kind of range of linearity is wider, sensitivity is higher, the response time is shorter, anti-interference degree is higher.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of high performance mineral carbon monoxide transducer, comprise: processor module, sound and light alarm module, carbonomonoxide concentration acquisition processing module, display remoting module, the multi-system output module and power management module, described processor module respectively with described sound and light alarm module, carbonomonoxide concentration acquisition processing module, display remoting module, the multi-system output module is connected with power management module, described sound and light alarm module, carbonomonoxide concentration acquisition processing module, display remoting module is all connected with described power management module with the multi-system output module, described power management module comprises anti-interference unit, power supply unit of voltage regulation and DC/DC converting unit, described carbonomonoxide concentration acquisition processing module comprises collecting unit and processing unit, described collecting unit comprises sensitive element U1 and amplifying circuit, and the model of described sensitive element U1 is 4CO-500.
Described anti-interference unit comprises network transformer T1, and described power supply unit of voltage regulation comprises PNP type triode Q1 and stabilized voltage supply chip U2, and described DC/DC converting unit comprises DC/DC conversion chip U3, be connected with one end of fuse F1 behind one end of the positive input terminal shunt-wound capacitance C1 of described network transformer T1, be connected with external power source positive pole VIN+ behind one end of the other end shunt-wound capacitance C2 of fuse F1, be connected with one end of fuse F2 after the other end of the negative input end shunt-wound capacitance C1 of described network transformer T1, be connected with external power source negative pole VIN-after the other end of the other end shunt-wound capacitance C2 of fuse F2, be connected with one end of fuse F3 behind one end of the positive output end shunt-wound capacitance C3 of described network transformer T1, the other end of fuse F3 is also connected with one end of electric capacity C4 after connecing one end of fuse FS1, be connected with one end of fuse F4 after the other end of the negative output terminal shunt-wound capacitance C3 of described network transformer T1, ground connection after the other end of other end shunt-wound capacitance C4 of fuse F4 and the positive pole of diode TVS1, the emitter of described PNP type triode Q1 is connected with one end of resistance R1, the other end of resistance R1 one end of connecting resistance R2, one end of electric capacity C5, the positive pole of diode D1, the negative pole of diode TVS1 is connected with the drain electrode of P-channel field-effect transistor (PEFT) pipe Q2 with after the other end of fuse FS1, the base stage of described PNP type triode Q1 one end of connecting resistance R3 are connected with the negative pole of diode D2 with behind one end of resistance R4, the positive pole of diode D2 is connected with the negative pole of diode D1, the collector of described PNP type triode Q1 is connected with the source electrode of P-channel field-effect transistor (PEFT) pipe Q2, the described grid of P-channel field-effect transistor (PEFT) pipe Q2 the other end of connecting resistance R2 are connected with one end of resistance R5 with after the other end of electric capacity C5, the other end of resistance R5 is connected with the collector of photoelectrical coupler U4, the grounded emitter of described photoelectrical coupler U4, the positive pole of described photoelectrical coupler U4 is connected with the power output terminal VDD of described power management module, the negative pole of described photoelectrical coupler U4 is also connected with one end of resistance R6 after connecing the positive pole of photoelectrical coupler U5, the other end of resistance R6 is connected with the first optocoupler control end PW1 of described processor module, be connected with the second optocoupler control end PW2 of described processor module after the negative pole series resistor R7 of described photoelectrical coupler U5, the collector of described photoelectrical coupler U5 is also connected with the other end of resistance R3 after connecing the grid of P-channel field-effect transistor (PEFT) pipe Q3, the source electrode of described P-channel field-effect transistor (PEFT) pipe Q3 is connected with the other end of resistance R4, the drain electrode of described P-channel field-effect transistor (PEFT) pipe Q3 ground connection after connecing the emitter of described photoelectrical coupler U5, be connected with the source electrode of described P-channel field-effect transistor (PEFT) pipe Q2 behind one end of the input end Vin shunt-wound capacitance C6 of described stabilized voltage supply chip U2, the other end of described electric capacity C6 ground connection after connecing the negative pole of the earth terminal GND of described stabilized voltage supply chip U2, one end of electric capacity C7, one end of electric capacity C8, the positive pole of diode TVS2 and electrochemical capacitor C9, the other end of the output end vo ut shunt-wound capacitance C7 of described stabilized voltage supply chip U2, the other end of electric capacity C8, the negative pole of diode TVS2 are connected with one end of resistance R8 with after the positive pole of electrochemical capacitor C9, the described power input Pvin of DC/DC conversion chip U3 one end of connecting resistance R9, one end of electric capacity C10, one end of electric capacity C11 is connected with the other end of resistance R8 with behind one end of resistance R10, the power input Vin of described DC/DC conversion chip U3 also meets the digital input control end D0 of DC/DC conversion chip U3, numeral input control end D1, the other end of resistance R9 is connected with one end of electric capacity C13 with behind one end of electric capacity C12, the other end of the other end shunt-wound capacitance C10 of electric capacity C12, ground connection after the other end of electric capacity C11 and the other end of electric capacity C13, the Lou output terminal of opening of described DC/DC conversion chip U3 is connected with the other end of resistance R10, one end of the feedback end FB shunt-wound capacitance C14 of described DC/DC conversion chip U3 is connected with one end of resistance R12 with behind one end of resistance R11, the power supply ground of described DC/DC conversion chip U3 is held GND and holds Pgnd with connecing the power supply of DC/DC conversion chip U3, ground connection behind one end of electric capacity C15 and one end of electric capacity C16, the inductance type switching node end LX of described DC/DC conversion chip U3 is connected with one end of inductance L 1, the other end of the other end shunt-wound capacitance C15 of described inductance L 1, the other end of electric capacity C16, the voltage output end Vout of DC/DC conversion chip U3, the other end of electric capacity C14, the other end of resistance R11, the negative pole of diode TVS3 is connected with the input end of wave filter FC1 with after the positive pole of electrochemical capacitor C17, the other end of described resistance R12 ground connection after connecing the positive pole of diode TVS3 and the negative pole of electrochemical capacitor C17, the output terminal of described wave filter FC1 is connected with the power output terminal VDD of described power management module, the earth terminal ground connection of described wave filter FC1.
Described collecting unit amplifying circuit comprises two-way amplifier U6, with being connected to electrode CE of described sensitive element U1 behind one end of the A channel output terminal OA shunt-wound capacitance C18 of described two-way amplifier U6, A channel negative terminal-the IA of described two-way amplifier U6 is connected with one end of resistance R13, be connected with one end of resistance R14 after the other end of the other end shunt-wound capacitance C18 of resistance R13, be connected with the negative input end SIG-of described processing unit after the A channel anode+IA series resistor R15 of described two-way amplifier U6, the power supply negative terminal G ground connection of described two-way amplifier U6, channel B anode+the IB of described two-way amplifier U6 is connected with the A channel anode+IA of two-way amplifier U6, one end of the channel B negative terminal-IB shunt-wound capacitance C19 of described two-way amplifier U6 is connected with one end of resistance R16 with behind one end of resistance R20, the other end of resistance R16 is also connected with the working electrode WE of described sensitive element U1 after connecing the drain electrode of P-channel field-effect transistor (PEFT) pipe Q4, the reference electrode RE of described sensitive element U1 is also connected with the source electrode of described P-channel field-effect transistor (PEFT) pipe Q4 after the other end of connecting resistance R14, be connected with the power output terminal VDD of described power management module after the grid series resistor R19 of described P-channel field-effect transistor (PEFT) pipe Q4, the other end of the channel B output terminal OB shunt-wound capacitance C19 of described two-way amplifier U6 is connected with one end of resistance R17 with after the other end of resistance R20, be connected with one end of resistance R18 behind one end of the other end shunt-wound capacitance C20 of resistance R17, the other end of resistance R18 is connected with the positive input terminal SIG+ of described processing unit, the other end ground connection of described electric capacity C20, be connected with the power output terminal VDD of described power management module behind one end of the power positive end V shunt-wound capacitance C21 of described two-way amplifier U6, the other end ground connection of described electric capacity C21.
The utility model compared with prior art has following beneficial effect:
Mining carbon monoxide transducer in the utility model, comprise processor module, processor module respectively with sound and light alarm module, carbonomonoxide concentration acquisition processing module, display remoting module, the multi-system output module is connected with power management module, sound and light alarm module, carbonomonoxide concentration acquisition processing module, display remoting module is all connected with power management module with the multi-system output module, and power management module comprises anti-interference unit, power supply unit of voltage regulation and DC/DC converting unit, carbonomonoxide concentration acquisition processing module comprises collecting unit and processing unit, collecting unit comprises sensitive element U1 and amplifying circuit, the model of sensitive element U1 is 4CO-500, after power management module powers on, processor module controls each module orderly start, when each module of whole sensor starts complete, carbonomonoxide concentration acquisition processing module starts image data, and by the real-time data transmission that collects to processor module, after processor module processes data, communication is carried out by the multi-system output module and outside, particularly, transfer data to display remoting module to show, and in the process of processor module process data, if find that the concentration value of carbon monoxide reaches the numerical value of predetermined warning and power-off, processor module is to sound and light alarm module transfer alarm signal, then sensor sends sound and light alarm and carries out the process of correlation behavior,
In the technical solution of the utility model, the model selected due to the sensitive element U1 carrying out Real-time Collection to CO gas in collecting unit is 4CO-500, the linearity of 4CO-500 sensitive element U1 can reach 2000ppm, its range of linearity is made to be 0 ~ 500ppm, in addition, the sensitivity of 4CO-500 sensitive element U1 can reach 75 ± 15nA/ppm, response time T
90< 25s, therefore, 4CO-500 sensitive element U1 is used to have as the utility model of sensing probe the advantage that the range of linearity is wider, sensitivity is higher, the response time is shorter, and the utility model is when designing power supply part, Anti-interference Design has been carried out to power management module, make its contact discharge can resisting 4KV, electrical fast transient (eft) that voltage peak is 1KV and open-circuit voltage be the surge impact of 1KV, improve the anti-interference degree of whole sensor.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the circuit theory diagrams of power management module;
Fig. 3 is the circuit theory diagrams of collecting unit in carbonomonoxide concentration acquisition processing module;
In figure: 1 is processor module, 2 is sound and light alarm module, 3 is carbonomonoxide concentration acquisition processing module, and 4 is display remoting module, and 5 is the multi-system output module, 6 is power management module, 7 is anti-interference unit, and 8 is power supply unit of voltage regulation, and 9 is DC/DC converting unit, 10 is collecting unit, and 11 is processing unit.
Embodiment
As shown in Figure 1, a kind of high performance mineral carbon monoxide transducer, comprise: processor module 1, sound and light alarm module 2, carbonomonoxide concentration acquisition processing module 3, display remoting module 4, the multi-system output module 5 and power management module 6, described processor module 1 respectively with described sound and light alarm module 2, carbonomonoxide concentration acquisition processing module 3, display remoting module 4, the multi-system output module 5 is connected with power management module 6, described sound and light alarm module 2, carbonomonoxide concentration acquisition processing module 3, display remoting module 4 and the multi-system output module 5 are all connected with described power management module 6, in the present embodiment, after power management module 5 powers on, processor module 1 controls each module orderly start, to reach the object reducing and start power consumption, when each module of whole sensor starts complete, methane concentration signal acquisition module 3 starts image data, and by the real-time data transmission that collects to processor module 1, after processor module 1 processes data, transfer data to display remoting module 4 to show, and process in the process of data at processor module 1, if find that the concentration value of methane reaches the numerical value of predetermined warning and power-off, processor module 1 transmits an alarm signal to sound and light alarm module 2, then sensor sends sound and light alarm and carries out the process of correlation behavior, in addition, client also carries out calibration by telepilot to sensor, the operations such as inquiry, in the present embodiment, the multi-system output module 5 comprises RS485 communicating circuit plate, CAN communication circuit plate and ZIGBEE wireless communication line plate, on RS485 communicating circuit plate, be provided with for carrying out the port of communication with processor module 1 and external communications on CAN communication circuit plate and on ZIGBEE wireless communication line plate respectively, and the connectivity port be provided with on the base plate of sensor outer housing for connecting PORT COM on foregoing circuit plate and processor module 1, RS485, CAN and ZIGBEE is communication transfer standard more popular at present, carbon monoxide transducer in the present embodiment can with multiple supervisory system with the use of, according to actual needs, RS485 communicating circuit plate or CAN communication circuit plate or ZIGBEE wireless communication line plate can be selected to be used as detecting data outputting module, versatility is extremely strong, can from the multiple supervisory system with different transmission mode with the use of, the data transmission stream that improve between system and sensor is freely spent, ensure that monitoring efficiency and the monitoring precision of supervisory system.
Concrete, described power management module 6 can comprise anti-interference unit 7, power supply unit of voltage regulation 8 and DC/DC converting unit 9, described carbonomonoxide concentration acquisition processing module 3 can comprise collecting unit 10 and processing unit 11, described collecting unit 10 can comprise sensitive element U1 and amplifying circuit, the model of described sensitive element U1 can be 4CO-500, in the present embodiment, it is 0 ~ 500ppm that the linearity of 4CO-500 sensitive element U1 can reach the 2000ppm(range of linearity), sensitivity can reach 75 ± 15nA/ppm, response time T
90< 25s; Anti-interference unit 7 in the present embodiment can comprise network transformer T1, and described power supply unit of voltage regulation 8 can comprise PNP type triode Q1 and stabilized voltage supply chip U2, and described DC/DC converting unit 9 can comprise DC/DC conversion chip U3.
As shown in Figure 2, be connected with one end of fuse F1 behind one end of the positive input terminal shunt-wound capacitance C1 of described network transformer T1, be connected with external power source positive pole VIN+ behind one end of the other end shunt-wound capacitance C2 of fuse F1, in the present embodiment, the model of network transformer T1 can be HR630501-881, be connected with one end of fuse F2 after the other end of the negative input end shunt-wound capacitance C1 of described network transformer T1, be connected with external power source negative pole VIN-after the other end of the other end shunt-wound capacitance C2 of fuse F2, be connected with one end of fuse F3 behind one end of the positive output end shunt-wound capacitance C3 of described network transformer T1, the other end of fuse F3 is also connected with one end of electric capacity C4 after connecing one end of fuse FS1, be connected with one end of fuse F4 after the other end of the negative output terminal shunt-wound capacitance C3 of described network transformer T1, ground connection after the other end of other end shunt-wound capacitance C4 of fuse F4 and the positive pole of diode TVS1, in the present embodiment, the model of diode TVS1 can be SMAJ24A, the emitter of described PNP type triode Q1 is connected with one end of resistance R1, the other end of resistance R1 one end of connecting resistance R2, one end of electric capacity C5, the positive pole of diode D1, the negative pole of diode TVS1 is connected with the drain electrode of P-channel field-effect transistor (PEFT) pipe Q2 with after the other end of fuse FS1, in the present embodiment, the model of fuse FS1 can be mSMD030, the model of P-channel field-effect transistor (PEFT) pipe Q2 can be AO3407, the base stage of described PNP type triode Q1 one end of connecting resistance R3 are connected with the negative pole of diode D2 with behind one end of resistance R4, the positive pole of diode D2 is connected with the negative pole of diode D1, the collector of described PNP type triode Q1 is connected with the source electrode of P-channel field-effect transistor (PEFT) pipe Q2, the described grid of P-channel field-effect transistor (PEFT) pipe Q2 the other end of connecting resistance R2 are connected with one end of resistance R5 with after the other end of electric capacity C5, the other end of resistance R5 is connected with the collector of photoelectrical coupler U4, the grounded emitter of described photoelectrical coupler U4, the positive pole of described photoelectrical coupler U4 is connected with the power output terminal VDD of described power management module 6, the negative pole of described photoelectrical coupler U4 is also connected with one end of resistance R6 after connecing the positive pole of photoelectrical coupler U5, the other end of resistance R6 is connected with the first optocoupler control end PW1 of described processor module 1, be connected with the second optocoupler control end PW2 of described processor module 1 after the negative pole series resistor R7 of described photoelectrical coupler U5, the collector of described photoelectrical coupler U5 is also connected with the other end of resistance R3 after connecing the grid of P-channel field-effect transistor (PEFT) pipe Q3, the source electrode of described P-channel field-effect transistor (PEFT) pipe Q3 is connected with the other end of resistance R4, the drain electrode of described P-channel field-effect transistor (PEFT) pipe Q3 ground connection after connecing the emitter of described photoelectrical coupler U5, be connected with the source electrode of described P-channel field-effect transistor (PEFT) pipe Q2 behind one end of the input end Vin shunt-wound capacitance C6 of described stabilized voltage supply chip U2, the other end of described electric capacity C6 also meets the earth terminal GND of described stabilized voltage supply chip U2, one end of electric capacity C7, one end of electric capacity C8, ground connection after the positive pole of diode TVS2 and the negative pole of electrochemical capacitor C9, in the present embodiment, the model of diode TVS2 can be SMAJ5.0A, the other end of the output end vo ut shunt-wound capacitance C7 of described stabilized voltage supply chip U2, the other end of electric capacity C8, the negative pole of diode TVS2 is connected with one end of resistance R8 with after the positive pole of electrochemical capacitor C9,
In the present embodiment, the model of DC/DC conversion chip U3 can be SP6651AEU, the described power input Pvin of DC/DC conversion chip U3 one end of connecting resistance R9, one end of electric capacity C10, one end of electric capacity C11 is connected with the other end of resistance R8 with behind one end of resistance R10, the power input Vin of described DC/DC conversion chip U3 also meets the digital input control end D0 of DC/DC conversion chip U3, numeral input control end D1, the other end of resistance R9 is connected with one end of electric capacity C13 with behind one end of electric capacity C12, the other end of the other end shunt-wound capacitance C10 of electric capacity C12, ground connection after the other end of electric capacity C11 and the other end of electric capacity C13, the Lou output terminal of opening of described DC/DC conversion chip U3 is connected with the other end of resistance R10, one end of the feedback end FB shunt-wound capacitance C14 of described DC/DC conversion chip U3 is connected with one end of resistance R12 with behind one end of resistance R11, the power supply ground of described DC/DC conversion chip U3 is held GND and holds Pgnd with connecing the power supply of DC/DC conversion chip U3, ground connection behind one end of electric capacity C15 and one end of electric capacity C16, the inductance type switching node end LX of described DC/DC conversion chip U3 is connected with one end of inductance L 1, the other end of the other end shunt-wound capacitance C15 of described inductance L 1, the other end of electric capacity C16, the voltage output end Vout of DC/DC conversion chip U3, the other end of electric capacity C14, the other end of resistance R11, the negative pole of diode TVS3 is connected with the input end of wave filter FC1 with after the positive pole of electrochemical capacitor C17, the other end of described resistance R12 ground connection after connecing the positive pole of diode TVS3 and the negative pole of electrochemical capacitor C17, the output terminal of described wave filter FC1 is connected with the power output terminal VDD of described power management module 6, the earth terminal ground connection of described wave filter FC1.
As shown in Figure 3, described collecting unit 10 amplifying circuit comprises two-way amplifier U6, in the present embodiment, the model of two-way amplifier U6 can be AD8572AR, with being connected to electrode CE of described sensitive element U1 behind one end of the A channel output terminal OA shunt-wound capacitance C18 of described two-way amplifier U6, A channel negative terminal-the IA of described two-way amplifier U6 is connected with one end of resistance R13, be connected with one end of resistance R14 after the other end of the other end shunt-wound capacitance C18 of resistance R13, be connected with the negative input end SIG-of described processing unit 11 after the A channel anode+IA series resistor R15 of described two-way amplifier U6, the power supply negative terminal G ground connection of described two-way amplifier U6, channel B anode+the IB of described two-way amplifier U6 is connected with the A channel anode+IA of two-way amplifier U6, one end of the channel B negative terminal-IB shunt-wound capacitance C19 of described two-way amplifier U6 is connected with one end of resistance R16 with behind one end of resistance R20, the other end of resistance R16 is also connected with the working electrode WE of described sensitive element U1 after connecing the drain electrode of P-channel field-effect transistor (PEFT) pipe Q4, the reference electrode RE of described sensitive element U1 is also connected with the source electrode of described P-channel field-effect transistor (PEFT) pipe Q4 after the other end of connecting resistance R14, be connected with the power output terminal VDD of described power management module 6 after the grid series resistor R19 of described P-channel field-effect transistor (PEFT) pipe Q4, the other end of the channel B output terminal OB shunt-wound capacitance C19 of described two-way amplifier U6 is connected with one end of resistance R17 with after the other end of resistance R20, be connected with one end of resistance R18 behind one end of the other end shunt-wound capacitance C20 of resistance R17, the other end of resistance R18 is connected with the positive input terminal SIG+ of described processing unit 11, the other end ground connection of described electric capacity C20, be connected with the power output terminal VDD of described power management module 6 behind one end of the power positive end V shunt-wound capacitance C21 of described two-way amplifier U6, the other end ground connection of described electric capacity C21.
The utility model can not only be applied to field, colliery, easily may be used on chemical industry simultaneously, the industries such as metallurgy, nor be only directed to carbonomonoxide concentration sensor, gas sensor for other is also suitable for simultaneously, the structure of whole sensor is simple, the basis of traditional sensor is carried out improve, can not only easily for user provides the output of the multi-system, solve each producer supervisory system must and oneself sensor with the use of drawback, for user has saved a large amount of manpower and materials, and whole linear sensor wider range, sensitivity is higher, response time is shorter and anti-interference degree is higher, there is substantive distinguishing features and progress, by reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (3)
1. a high performance mineral carbon monoxide transducer, comprise: processor module (1), sound and light alarm module (2), carbonomonoxide concentration acquisition processing module (3), display remoting module (4), the multi-system output module (5) and power management module (6), described processor module (1) respectively with described sound and light alarm module (2), carbonomonoxide concentration acquisition processing module (3), display remoting module (4), the multi-system output module (5) is connected with power management module (6), described sound and light alarm module (2), carbonomonoxide concentration acquisition processing module (3), display remoting module (4) is all connected with described power management module (6) with the multi-system output module (5),
It is characterized in that: described power management module (6) comprises anti-interference unit (7), power supply unit of voltage regulation (8) and DC/DC converting unit (9), described carbonomonoxide concentration acquisition processing module (3) comprises collecting unit (10) and processing unit (11), described collecting unit (10) comprises sensitive element U1 and amplifying circuit, and the model of described sensitive element U1 is 4CO-500.
2. a kind of high performance mineral carbon monoxide transducer according to claim 1, it is characterized in that: described anti-interference unit (7) comprises network transformer T1, described power supply unit of voltage regulation (8) comprises PNP type triode Q1 and stabilized voltage supply chip U2, and described DC/DC converting unit (9) comprises DC/DC conversion chip U3;
Be connected with one end of fuse F1 behind one end of the positive input terminal shunt-wound capacitance C1 of described network transformer T1, be connected with external power source positive pole VIN+ behind one end of the other end shunt-wound capacitance C2 of fuse F1, be connected with one end of fuse F2 after the other end of the negative input end shunt-wound capacitance C1 of described network transformer T1, be connected with external power source negative pole VIN-after the other end of the other end shunt-wound capacitance C2 of fuse F2, be connected with one end of fuse F3 behind one end of the positive output end shunt-wound capacitance C3 of described network transformer T1, the other end of fuse F3 is also connected with one end of electric capacity C4 after connecing one end of fuse FS1, be connected with one end of fuse F4 after the other end of the negative output terminal shunt-wound capacitance C3 of described network transformer T1, ground connection after the other end of other end shunt-wound capacitance C4 of fuse F4 and the positive pole of diode TVS1,
The emitter of described PNP type triode Q1 is connected with one end of resistance R1, the other end of resistance R1 one end of connecting resistance R2, one end of electric capacity C5, the positive pole of diode D1, the negative pole of diode TVS1 is connected with the drain electrode of P-channel field-effect transistor (PEFT) pipe Q2 with after the other end of fuse FS1, the base stage of described PNP type triode Q1 one end of connecting resistance R3 are connected with the negative pole of diode D2 with behind one end of resistance R4, the positive pole of diode D2 is connected with the negative pole of diode D1, the collector of described PNP type triode Q1 is connected with the source electrode of P-channel field-effect transistor (PEFT) pipe Q2, the described grid of P-channel field-effect transistor (PEFT) pipe Q2 the other end of connecting resistance R2 are connected with one end of resistance R5 with after the other end of electric capacity C5, the other end of resistance R5 is connected with the collector of photoelectrical coupler U4, the grounded emitter of described photoelectrical coupler U4, the positive pole of described photoelectrical coupler U4 is connected with the power output terminal VDD of described power management module (6), the negative pole of described photoelectrical coupler U4 is also connected with one end of resistance R6 after connecing the positive pole of photoelectrical coupler U5, the other end of resistance R6 is connected with the first optocoupler control end PW1 of described processor module (1), be connected with the second optocoupler control end PW2 of described processor module (1) after the negative pole series resistor R7 of described photoelectrical coupler U5, the collector of described photoelectrical coupler U5 is also connected with the other end of resistance R3 after connecing the grid of P-channel field-effect transistor (PEFT) pipe Q3, the source electrode of described P-channel field-effect transistor (PEFT) pipe Q3 is connected with the other end of resistance R4, the drain electrode of described P-channel field-effect transistor (PEFT) pipe Q3 ground connection after connecing the emitter of described photoelectrical coupler U5, be connected with the source electrode of described P-channel field-effect transistor (PEFT) pipe Q2 behind one end of the input end Vin shunt-wound capacitance C6 of described stabilized voltage supply chip U2, the other end of described electric capacity C6 ground connection after connecing the negative pole of the earth terminal GND of described stabilized voltage supply chip U2, one end of electric capacity C7, one end of electric capacity C8, the positive pole of diode TVS2 and electrochemical capacitor C9, the other end of the output end vo ut shunt-wound capacitance C7 of described stabilized voltage supply chip U2, the other end of electric capacity C8, the negative pole of diode TVS2 are connected with one end of resistance R8 with after the positive pole of electrochemical capacitor C9,
The described power input Pvin of DC/DC conversion chip U3 one end of connecting resistance R9, one end of electric capacity C10, one end of electric capacity C11 is connected with the other end of resistance R8 with behind one end of resistance R10, the power input Vin of described DC/DC conversion chip U3 also meets the digital input control end D0 of DC/DC conversion chip U3, numeral input control end D1, the other end of resistance R9 is connected with one end of electric capacity C13 with behind one end of electric capacity C12, the other end of the other end shunt-wound capacitance C10 of electric capacity C12, ground connection after the other end of electric capacity C11 and the other end of electric capacity C13, the Lou output terminal of opening of described DC/DC conversion chip U3 is connected with the other end of resistance R10, one end of the feedback end FB shunt-wound capacitance C14 of described DC/DC conversion chip U3 is connected with one end of resistance R12 with behind one end of resistance R11, the power supply ground of described DC/DC conversion chip U3 is held GND and holds Pgnd with connecing the power supply of DC/DC conversion chip U3, ground connection behind one end of electric capacity C15 and one end of electric capacity C16, the inductance type switching node end LX of described DC/DC conversion chip U3 is connected with one end of inductance L 1, the other end of the other end shunt-wound capacitance C15 of described inductance L 1, the other end of electric capacity C16, the voltage output end Vout of DC/DC conversion chip U3, the other end of electric capacity C14, the other end of resistance R11, the negative pole of diode TVS3 is connected with the input end of wave filter FC1 with after the positive pole of electrochemical capacitor C17, the other end of described resistance R12 ground connection after connecing the positive pole of diode TVS3 and the negative pole of electrochemical capacitor C17, the output terminal of described wave filter FC1 is connected with the power output terminal VDD of described power management module (6), the earth terminal ground connection of described wave filter FC1.
3. a kind of high performance mineral carbon monoxide transducer according to claim 2, it is characterized in that: described collecting unit (10) amplifying circuit comprises two-way amplifier U6, with being connected to electrode CE of described sensitive element U1 behind one end of the A channel output terminal OA shunt-wound capacitance C18 of described two-way amplifier U6, A channel negative terminal-the IA of described two-way amplifier U6 is connected with one end of resistance R13, be connected with one end of resistance R14 after the other end of the other end shunt-wound capacitance C18 of resistance R13, be connected with the negative input end SIG-of described processing unit (11) after the A channel anode+IA series resistor R15 of described two-way amplifier U6, the power supply negative terminal G ground connection of described two-way amplifier U6, channel B anode+the IB of described two-way amplifier U6 is connected with the A channel anode+IA of two-way amplifier U6, one end of the channel B negative terminal-IB shunt-wound capacitance C19 of described two-way amplifier U6 is connected with one end of resistance R16 with behind one end of resistance R20, the other end of resistance R16 is also connected with the working electrode WE of described sensitive element U1 after connecing the drain electrode of P-channel field-effect transistor (PEFT) pipe Q4, the reference electrode RE of described sensitive element U1 is also connected with the source electrode of described P-channel field-effect transistor (PEFT) pipe Q4 after the other end of connecting resistance R14, be connected with the power output terminal VDD of described power management module (6) after the grid series resistor R19 of described P-channel field-effect transistor (PEFT) pipe Q4, the other end of the channel B output terminal OB shunt-wound capacitance C19 of described two-way amplifier U6 is connected with one end of resistance R17 with after the other end of resistance R20, be connected with one end of resistance R18 behind one end of the other end shunt-wound capacitance C20 of resistance R17, the other end of resistance R18 is connected with the positive input terminal SIG+ of described processing unit (11), the other end ground connection of described electric capacity C20, be connected with the power output terminal VDD of described power management module (6) behind one end of the power positive end V shunt-wound capacitance C21 of described two-way amplifier U6, the other end ground connection of described electric capacity C21.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136878A (en) * | 2015-08-14 | 2015-12-09 | 成都易思科科技有限公司 | CO detection signal amplifying circuit |
| CN107659205A (en) * | 2017-09-29 | 2018-02-02 | 中国矿业大学 | A kind of piezoelectric energy capture operated type wireless sensing node device for deep tunnel monitoring |
| CN108765887A (en) * | 2018-08-06 | 2018-11-06 | 扬中市南方矿用电器有限公司 | A kind of coal mine pipeline carbon monoxide transducer and its application process |
| CN109723493A (en) * | 2018-11-20 | 2019-05-07 | 山西宏安翔科技股份有限公司 | A kind of mine rock burst Real-time Detecting System for Microseism |
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2014
- 2014-09-03 CN CN201420504744.2U patent/CN204086246U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136878A (en) * | 2015-08-14 | 2015-12-09 | 成都易思科科技有限公司 | CO detection signal amplifying circuit |
| CN107659205A (en) * | 2017-09-29 | 2018-02-02 | 中国矿业大学 | A kind of piezoelectric energy capture operated type wireless sensing node device for deep tunnel monitoring |
| CN108765887A (en) * | 2018-08-06 | 2018-11-06 | 扬中市南方矿用电器有限公司 | A kind of coal mine pipeline carbon monoxide transducer and its application process |
| CN109723493A (en) * | 2018-11-20 | 2019-05-07 | 山西宏安翔科技股份有限公司 | A kind of mine rock burst Real-time Detecting System for Microseism |
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