CN201803972U - Oxygen sensor - Google Patents
Oxygen sensor Download PDFInfo
- Publication number
- CN201803972U CN201803972U CN2010205380822U CN201020538082U CN201803972U CN 201803972 U CN201803972 U CN 201803972U CN 2010205380822 U CN2010205380822 U CN 2010205380822U CN 201020538082 U CN201020538082 U CN 201020538082U CN 201803972 U CN201803972 U CN 201803972U
- Authority
- CN
- China
- Prior art keywords
- cpu
- resistance
- probe
- oxygen sensor
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model provides an oxygen sensor comprising a voltage stabilizer, a probe, a CPU (central processing unit) main board, a probe power supply regulator and a CPU power supply regulator, wherein the voltage stabilizer is connected with the probe and the CPU main board; the probe power supply regulator is connected with the voltage stabilizer and the probe respectively; the CPU power supply regulator is connected with the CPU main board; and the CPU main board is connected with an acousto-optic alarming device circuit which can sent out loud acousto-optic alarm with strong red lights when oxygen concentration is lower than a certain set value. The oxygen sensor has the following advantages and positive effects: since the probe power supply regulator and the CPU power supply regulator are arranged, the working voltages of the probe and the CPU can be changed through changing the resistance value of two variable resistors, namely, the oxygen sensor can be matched with probes and CPUs with different working voltages, therefore, the oxygen sensor is very convenient to use and maintain, and the promotion and application of the sensor are favorable.
Description
Technical field
The utility model relates to gas measurement device, particularly a kind of oxygen sensor.
Background technology
Oxygen sensor is used for the analog sensor of the airborne oxygen concentration of each operation place measurement under the coal mine, and numeral shows that measured oxygen concentration value and outputting standard signal send associate device on the spot.At present, known oxygen sensor, the device of the operating voltage of not popping one's head on the mainboard and CPU operating voltage, normally utilize the method adjusting probe of interpolation build-out resistor and the operating voltage of CPU, probe and CPU for coupling different operating voltage, very inconvenient in operation and maintenance, be unfavorable for the promotion and application of sensor.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of and can regulate probe operating voltage and CPU operating voltage, to mate the oxygen sensor of different operating voltage probe and CPU easily.
For achieving the above object, the oxygen sensor that the utility model provides, comprise voltage stabilizer, probe and cpu motherboard, also comprise probe power regulator and cpu power regulator, described probe power regulator links to each other respectively with probe with described voltage stabilizer, and described cpu power regulator links to each other with described cpu motherboard.
The utility model oxygen sensor, wherein said probe power regulator is provided with the 27 resistance, the 26 resistance and the 3rd adjustable resistance, and described the 27 resistance, the 26 resistance are connected the back successively with the 3rd adjustable resistance and are connected in the output terminal of described voltage stabilizer.
The utility model oxygen sensor, wherein said cpu power regulator is provided with the 19 resistance, the 18 resistance and the 5th adjustable resistance, described the 19 resistance, the 18 resistance are connected the back successively with the 5th adjustable resistance and are connected in the output terminal of described voltage stabilizer, and the node of described the 19 resistance and the 18 resistance is connected to the voltage input end end of CPU.
The utility model oxygen sensor, wherein said cpu motherboard is connected with the acoustic-optic alarm circuit.
The utility model oxygen sensor, the parameter of wherein said the 3rd adjustable resistance are 1 kilo-ohm.
The utility model oxygen sensor, the parameter of wherein said the 5th adjustable resistance are 10 kilo-ohms.
The advantage and the good effect of the utility model oxygen sensor are: owing to be provided with probe power regulator and cpu power regulator, by changing the operating voltage that two variable-resistance resistances can change probe and CPU, that is to say the probe and the CPU that can mate different operating voltage, very convenient in operation and maintenance, be very beneficial for the promotion and application of sensor.
Be elaborated with reference to accompanying drawing below in conjunction with embodiment.
Description of drawings
Fig. 1 is the circuit diagram of probe power regulator;
Fig. 2 is the circuit diagram of cpu power regulator;
Fig. 3 is the circuit diagram of acoustic-optic alarm.
Embodiment
The utility model oxygen sensor comprises voltage stabilizer, probe and cpu motherboard, also comprises probe power regulator and cpu power regulator.Voltage stabilizer U9 connects probe and cpu motherboard, and the probe power regulator links to each other respectively with probe with voltage stabilizer, and the cpu power regulator links to each other with cpu motherboard.
With reference to Fig. 1, the power regulator of wherein popping one's head in is provided with the 27 resistance R the 27, the 26 resistance R 26 and the 3rd adjustable resistance W3, and the 27 resistance R the 27, the 26 resistance R 26 is connected the back successively with the 3rd adjustable resistance W3 and is connected in the output terminal of voltage stabilizer.The concrete connection is: it is the pin 3 of AMS1117 that+5V power supply connects voltage stabilizer U9, the power supply of+3V connects the pin 2 of voltage stabilizer U9, the pin 3 of voltage stabilizer U9 is by the tenth capacitor C 10 ground connection of 0.1u, the pin 2 of voltage stabilizer U9 is by the 13 capacitor C 13 ground connection of 0.1u, and the pin 2 of voltage stabilizer U9 connects pin 1 by the 27 resistance R 27, and pin 2 connects the 26 resistance R 26 and the 3rd adjustable resistance W3 and ground connection successively by the 27 resistance R 27.At this moment, can regulate the output voltage of probe socket by the resistance of regulating the 3rd adjustable resistance W3.
With reference to Fig. 2, the cpu power regulator is provided with the 19 resistance R the 19, the 18 resistance R 18 and the 5th adjustable resistance W5, the 19 resistance R the 19, the 18 resistance R 18 is connected the back successively with the 5th adjustable resistance W5 and is connected in the output terminal of voltage stabilizer, and the node of the 19 resistance R 19 and the 18 resistance R 18 is connected to the voltage input end end of CPU.The concrete connection is: the 3.3V power supply is the P0.0/Vref end by pin 2 voltage input ends of the 19 resistance R 19 connection CPU of 1K, and the 19 resistance R 19 also connects the 18 resistance R 18 of 1K and the 5th adjustable resistance W5 ground connection of 10K successively.Thereby guarantee, when the 3.3V power supply power, regulate the voltage that voltage input end P0.0/Vref that the 5th adjustable resistance W5 can regulate the CPU of pressure transducer holds, i.e. the operating voltage of CPU.
With reference to Fig. 3, cpu motherboard is connected with acoustic-optic alarm.The input end of acoustic-optic alarm, promptly the 23rd pin that the base stage of triode is connected to cpu motherboard among Fig. 3 is the F_OUT end.Acoustic-optic alarm can send very loud when oxygen concentration is lower than a certain setting value and with the sound and light alarm of strong ruddiness.The circuit of acoustic-optic alarm adopts conventional art, no longer describes in detail here.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design proposal prerequisite; common engineering technical personnel make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (6)
1. oxygen sensor, comprise voltage stabilizer, probe and cpu motherboard, it is characterized in that: also comprise probe power regulator and cpu power regulator, described probe power regulator links to each other respectively with probe with described voltage stabilizer, and described cpu power regulator links to each other with described cpu motherboard.
2. oxygen sensor according to claim 1, it is characterized in that: wherein said probe power regulator is provided with the 27 resistance, the 26 resistance and the 3rd adjustable resistance, and described the 27 resistance, the 26 resistance are connected the back successively with the 3rd adjustable resistance and are connected in the output terminal of described voltage stabilizer.
3. oxygen sensor according to claim 1 and 2, it is characterized in that: wherein said cpu power regulator is provided with the 19 resistance, the 18 resistance and the 5th adjustable resistance, described the 19 resistance, the 18 resistance are connected the back successively with the 5th adjustable resistance and are connected in the output terminal of described voltage stabilizer, and the node of described the 19 resistance and the 18 resistance is connected to the voltage input end of CPU.
4. oxygen sensor according to claim 3 is characterized in that: wherein said cpu motherboard is connected with the acoustic-optic alarm circuit.
5. oxygen sensor according to claim 4 is characterized in that: the parameter of wherein said the 3rd adjustable resistance is 1 kilo-ohm.
6. oxygen sensor according to claim 5 is characterized in that: the parameter of wherein said the 5th adjustable resistance is 10 kilo-ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205380822U CN201803972U (en) | 2010-09-21 | 2010-09-21 | Oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205380822U CN201803972U (en) | 2010-09-21 | 2010-09-21 | Oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803972U true CN201803972U (en) | 2011-04-20 |
Family
ID=43873472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205380822U Expired - Fee Related CN201803972U (en) | 2010-09-21 | 2010-09-21 | Oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201803972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652904A (en) * | 2016-03-18 | 2016-06-08 | 柳州易旺科技有限公司 | Automatic oxygen adjusting system and method thereof |
-
2010
- 2010-09-21 CN CN2010205380822U patent/CN201803972U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105652904A (en) * | 2016-03-18 | 2016-06-08 | 柳州易旺科技有限公司 | Automatic oxygen adjusting system and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101470172A (en) | CMOS battery voltage test device | |
| RU2010102947A (en) | METHOD AND SYSTEM OF MANAGEMENT OF DISCONNECTIONS OF ELECTRIC POWER SUPPLY ON THE BOARD OF THE AIRCRAFT | |
| CN202522915U (en) | Data acquisition system based on vibration wire type sensor | |
| CN201803972U (en) | Oxygen sensor | |
| CN103364367A (en) | Mining digitized gas parameter measuring and early warning system | |
| CN201803971U (en) | Carbon monoxide sensor | |
| CN202255641U (en) | Temperature warning direct-current circuit | |
| TW201300644A (en) | Fan rotate speed test device | |
| CN203964951U (en) | A kind of digital Temperature and Humidity monitoring alarm | |
| CN205426364U (en) | Intelligence humiture measurement system | |
| CN203504787U (en) | Electromagnetic heating circuit and electric pressure cooker | |
| CN102564566B (en) | Vibration test system of locomotive cooling tower | |
| CN203133530U (en) | Power management circuit | |
| CN201803807U (en) | Temperature sensor | |
| CN210667089U (en) | Smoke alarm | |
| CN203950450U (en) | A kind of solution conductivity display | |
| CN208420962U (en) | A kind of signal deteching circuit and motor speed measuring system | |
| CN102478622B (en) | Field effect transistor (FET) test device and method | |
| CN205539177U (en) | But circuit power supply unit of detection circuitry information | |
| CN201259447Y (en) | PTC heat-sensitive body temperature measuring circuit having variable resistance | |
| CN205079791U (en) | Thermal technology of thermal power plant operation environment monitoring device and system | |
| CN203337279U (en) | Temperature measuring instrument capable of adjusting upper limit and lower limit | |
| CN203643868U (en) | Water temperature regulating circuit | |
| CN204831540U (en) | Appearance was gathered in vibration monitoring acceleration passageway self -checking unit and system | |
| CN204576783U (en) | Based on the radio transmitting device of X-bee |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20160921 |