CN201274085Y - Carbon monoxide sensor - Google Patents
Carbon monoxide sensor Download PDFInfo
- Publication number
- CN201274085Y CN201274085Y CNU2008200416712U CN200820041671U CN201274085Y CN 201274085 Y CN201274085 Y CN 201274085Y CN U2008200416712 U CNU2008200416712 U CN U2008200416712U CN 200820041671 U CN200820041671 U CN 200820041671U CN 201274085 Y CN201274085 Y CN 201274085Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- carbon monoxide
- microprocessor
- signal
- chip microcomputer
- 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
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a carbon monoxide sensor, which belongs to a sensor and consists of a CO gas-sensitive element, a constant-voltage amplifying circuit which amplifies signals, a V/F converter, a microprocessor, a display, a signal output circuit, an acousto-optic alarm circuit and a remote control receiving circuit; the CO gas-sensitive element, the constant-voltage amplifying circuit and the V/F converter are connected in sequence and then are connected with a corresponding inlet terminal of the microprocessor; the infrared remote control receiving circuit is connected with the corresponding inlet terminal of the microprocessor; and the display, the acousto-optic alarm circuit and the signal output circuit are connected with an I/O port of the microprocessor. The carbon monoxide sensor has the beneficial effects of high measuring sensitivity, wide measuring range and high reliability.
Description
Technical field
The utility model relates to a kind of sensor, specifically is a kind of carbon monoxide transducer.Be applicable to that mainly getting working face under the coal mine, return aircourse, dynamo-electric cavern have the place of CO gas that carbonomonoxide concentration is carried out METHOD FOR CONTINUOUS DETERMINATION.
Background technology
Carbon monoxide is a kind of odorless, colourless, tasteless toxic gas.Content Law Control to carbon monoxide in the air puts teeth in.Particularly the control of the carbon monoxide content of getting working face, return aircourse, dynamo-electric cavern is even more important to the safety in production that guarantees the colliery under the coal mine.Existing carbon monoxide transducer is made up of sample circuit, amplifying circuit, temperature-compensation circuit, analog to digital conversion circuit and displaying alarm.The sample circuit and the gas concentration that adopt are nonlinear relationship, cause the side accuracy of measurement low; The temperature drift of probe is big, and the continuous working continuation is poor.
Summary of the invention
The utility model provides a kind of carbon monoxide transducer, have highly sensitive, the characteristics that measurement range is wide.
The utility model is realized with following technical scheme: a kind of carbon monoxide transducer is characterized in that comprising: the CO gas sensor that is used to obtain the carbon monoxide signal; Be used for constant voltage amplifying circuit with the amplification of carbon monoxide signal; The carbon monoxide conversion of signals that is used for amplifying becomes the V/F converter of frequency signal; Be used to handle the microprocessor of frequency signal; Display process result's display, the signal output apparatus that the signal of correspondence is exported with frequency or current signal mode; Sound light alarming circuit; Also comprise the infrared remote control receiving circuit; CO gas sensor, constant voltage amplifying circuit, V/F converter connect the back successively and connect with the corresponding inlet terminal of microprocessor, and the infrared remote control receiving circuit connects with the corresponding inlet terminal of microprocessor; Display, sound light alarming circuit, signal output apparatus are connected with the I/O mouth of microprocessor.
The voltage of mu balanced circuit output is supplied with each circuit unit of instrument.The current signal of CO gas sensor output is through amplifying, convert frequency signal to through the V/F converter again and send microprocessor processes, microprocessor send display to show the digital quantity of handling well, can the signal of correspondence be delivered to substation with frequency or current signal mode according to the needs of supervisory system simultaneously.When being not less than the warning value of setting, carbonomonoxide concentration sends sound, light warning.
The beneficial effects of the utility model are: measure highly sensitively, measurement range is wide, the reliability height.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is an electric theory diagram of the present utility model.
Embodiment
As shown in drawings, signal output apparatus, sound light alarming circuit and infrared remote control receiving circuit that the constant voltage amplifying circuit that carbon monoxide transducer comprises the CO gas sensor that is used to obtain the carbon monoxide signal, the carbon monoxide signal that is used for obtaining amplifies, the carbon monoxide conversion of signals that is used for amplifying become the V/F converter of frequency signal, the microprocessor that is used to handle frequency signal, display process result's display, the signal of correspondence is exported with frequency or current signal mode.
Microprocessor adopts the 89S52 single-chip microcomputer, in establish house dog and storer, it finishes the functions such as collection, computing, processing, control, output of data; The V/F change-over circuit is connected with the P33 mouth of 89S52 single-chip microcomputer; The infrared remote control receiving circuit receives the signal of being sent by telepilot, supplies with the P35 mouth of single-chip microcomputer 89S52; Display adopts charactron to show, is made up of 4 charactrons, is the dynamic scan display mode, and the segment encode of the P0 mouth output of single-chip microcomputer 89S52 outputs to 4 each sections of charactron, the P2 mouth export bit code drive respectively 4 shinny in turn.Sound light alarming circuit is connected with P23, the P26 mouth of 89S52 single-chip microcomputer, and when the carbonomonoxide concentration that detects during more than or equal to the alarming value set, the P26 of single-chip microcomputer, P23 mouth are reported to the police through peripheral inverter drive sound light alarming circuit.Signal output apparatus be connected with P20, the P21 mouth of 89S52 single-chip microcomputer. by 20 foot control systems of the single-chip microcomputer output frequency signal corresponding with carbonomonoxide concentration, 21 foot control systems are exported the current signal corresponding with carbonomonoxide concentration.
The external intrinsic safety electric source of stabilized voltage supply is given other each circuit supply 5V after voltage stabilizing.
Constant voltage is amplified current stabilization circuit generation 150mV voltage and is powered the pin output voltage signal to sensitive element.Principle of work is: 9～24V direct supply of external input is supplied with each circuit unit of instrument through mu balanced circuit output 5V voltage.The current signal of CO gas sensor output amplifies through conversion, output 0～1V voltage (corresponding 0～1000 * 10
-6), converting frequency signal to through V/F converter 331 again and send single-chip microcomputer 89S52 to handle, single-chip microcomputer 89S52 send display to show the digital quantity of handling well, and display shows 0～999 (unit: 1 * 10 with 4 bit digital
-6); Simultaneously can the signal of correspondence be delivered to substation with frequency or current signal mode according to the needs of supervisory system.When carbonomonoxide concentration was not less than the warning value of setting, instrument sent sound, light is reported to the police.
Claims (3)
1, a kind of carbon monoxide transducer is characterized in that comprising: the CO gas sensor that is used to obtain the carbon monoxide signal; Be used for constant voltage amplifying circuit with the amplification of carbon monoxide signal; The carbon monoxide conversion of signals that is used for amplifying becomes the V/F converter of frequency signal; Be used to handle the microprocessor of frequency signal; Display process result's display, the signal output apparatus that the signal of correspondence is exported with frequency or current signal mode; Sound light alarming circuit; Also comprise the infrared remote control receiving circuit; CO gas sensor, constant voltage amplifying circuit, V/F converter connect the back successively and connect with the corresponding inlet terminal of microprocessor, and the infrared remote control receiving circuit connects with the corresponding inlet terminal of microprocessor; Display, sound light alarming circuit, signal output apparatus are connected with the I/O mouth of microprocessor.
2, carbon monoxide transducer according to claim 1 is characterized in that microprocessor adopts the 89S52 single-chip microcomputer, in establish house dog and storer.
3, carbon monoxide transducer according to claim 1, it is characterized in that the V/F change-over circuit is connected with the P33 mouth of 89S52 single-chip microcomputer, the infrared remote control receiving circuit is connected with the P35 mouth of 89S52 single-chip microcomputer, display is connected with P0, the P2 mouth of 89S52 single-chip microcomputer, sound light alarming circuit is connected with P23, the P26 mouth of 89S52 single-chip microcomputer, signal output apparatus be connected with P20, the P21 mouth of 89S52 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200416712U CN201274085Y (en) | 2008-08-28 | 2008-08-28 | Carbon monoxide sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200416712U CN201274085Y (en) | 2008-08-28 | 2008-08-28 | Carbon monoxide sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201274085Y true CN201274085Y (en) | 2009-07-15 |
Family
ID=40884428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200416712U Expired - Fee Related CN201274085Y (en) | 2008-08-28 | 2008-08-28 | Carbon monoxide sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201274085Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293272A (en) * | 2013-05-09 | 2013-09-11 | 济南市长清计算机应用公司 | Sulfur hexafluoride alarm detector |
-
2008
- 2008-08-28 CN CNU2008200416712U patent/CN201274085Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293272A (en) * | 2013-05-09 | 2013-09-11 | 济南市长清计算机应用公司 | Sulfur hexafluoride alarm detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202281767U (en) | Hydrogen sulfide online monitoring analyzer | |
| CN201274085Y (en) | Carbon monoxide sensor | |
| CN202486087U (en) | High-concentration methane sensor for coal mine pipeline | |
| CN201331532Y (en) | Wide range methane sensor device | |
| CN205228513U (en) | Portable beasts and birds house environment measuring appearance | |
| CN110568124B (en) | Three-in-one sensor gas concentration detection method and three-in-one sensor | |
| CN205785306U (en) | A kind of hydrogen detection system based on metal-oxide gas sensor | |
| CN214502536U (en) | Multi-parameter measuring and sensing system | |
| CN216208769U (en) | High-precision online dissolved oxygen measuring instrument | |
| CN202404060U (en) | Carbon monoxide sensor for coal mines | |
| CN202393732U (en) | Multi-parameter gas measuring apparatus | |
| CN201345156Y (en) | Toxic gas detecting alarm | |
| CN103529091A (en) | Methane sensor | |
| CN2713470Y (en) | Integrative multifunctional quick detector for harmful gas | |
| CN201277946Y (en) | Infrared methane sensor | |
| CN201569636U (en) | Coal gas measuring equipment | |
| CN103105429A (en) | Automatic zero setting method, device and system of carbon monoxide sensor | |
| CN202330350U (en) | Oxygen sensor device | |
| CN203053990U (en) | Wind speed and wind direction measuring system | |
| CN113866233B (en) | High-precision online dissolved oxygen measuring instrument | |
| CN2751300Y (en) | Embedded multifunctional smoke dust online monitoring system | |
| CN112762884A (en) | Coal seam deformation measuring device | |
| CN2800396Y (en) | Wearable multi-sensor safety alarm for mine | |
| CN205003113U (en) | Mining pipe oxygen concentration meter | |
| CN204556496U (en) | Non-dispersive infrared methane sensor for coal mine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20100828 |