CN202583105U - Methane sensor - Google Patents
Methane sensor Download PDFInfo
- Publication number
- CN202583105U CN202583105U CN 201220161302 CN201220161302U CN202583105U CN 202583105 U CN202583105 U CN 202583105U CN 201220161302 CN201220161302 CN 201220161302 CN 201220161302 U CN201220161302 U CN 201220161302U CN 202583105 U CN202583105 U CN 202583105U
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- methane
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- 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.)
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Abstract
The utility model provides a methane sensor, which comprises a methane gas sensitive element, wherein the methane gas sensitive element is connected with a signal amplification circuit; and the signal amplification circuit is connected with an analog/digital conversion circuit. The methane sensor is characterized in that the A/D conversion circuit is connected with a micro processor; the micro processor is respectively connected with a power circuit, a storage unit, a signal output circuit, a power failure output circuit, an audible and visual alarming circuit, a display unit and an operation unit; the power circuit is connected with an external power supply; and the signal output circuit and the power failure output circuit are connected with external equipment through an air plug. According to the methane sensor, the micro processor is used as a main control unit, so that the power consumption is low, the response speed is high, and the stability is high; furthermore, a universal infrared remote controller is used for calibrating the sensor and setting other parameters; external connection wires are connected by the air plug; and the senor is easy to assemble and use.
Description
Technical field
The utility model relates to a kind of sensor that is used for methane content in the monitoring mine.
Background technology
Methane transducer is mainly used in the content that detects methane gas in the mine air, and converts the concentration value of methane gas in the air to the electric signal output corresponding with it.According to detected concentration of methane gas value, send and report to the police or power-off signal again.Methane transducer can be used in mining safety production monitoring system or the wind-powered electricity generation gas shutting system, as data collection station, also can be used for control outage actuator.
There is defective in existing methane transducer on corresponding speed, and is difficult for installing and using.
Summary of the invention
The purpose of the utility model provides and a kind ofly is easy to install and methane transducer that corresponding speed is fast.
In order to achieve the above object; The technical scheme of the utility model has provided a kind of methane transducer, comprises the methane gas gas sensor, and the methane gas gas sensor connects signal amplification circuit; Signal amplification circuit connects the A/D change-over circuit; It is characterized in that: the A/D change-over circuit connects microprocessor, and microprocessor connects power circuit, storage unit, signal output apparatus, outage output circuit, sound light alarming circuit, display unit and operating unit respectively, wherein; Power circuit connects external power supply, and signal output apparatus and outage output circuit connect external unit through aviation plug.
Preferably, said operating unit is an infrared remote control unit.
The utility model is owing to adopted microprocessor as main control unit; Therefore low in energy consumption, response is fast, good stability; Simultaneously; Pick up calibration and other parameters are provided with and adopt unified IR remote controller to operate, and external cabling adopts aviation plug to connect, and make that sensor is easy to install and use.
Description of drawings
The circuit block diagram of a kind of methane transducer that Fig. 1 provides for the utility model.
Embodiment
For making the utility model more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
As shown in Figure 1; Be a kind of methane transducer that the utility model provides, comprise methane gas gas sensor (being black-and-white component), the methane gas gas sensor connects signal amplification circuit; Signal amplification circuit connects the A/D change-over circuit; The A/D change-over circuit connects microprocessor (English abbreviates MCU as), and microprocessor connects power circuit, storage unit, signal output apparatus, outage output circuit, sound light alarming circuit, display unit and operating unit respectively, wherein; Power circuit connects external power supply, and signal output apparatus and outage output circuit connect external unit through aviation plug.Operating unit adopts infrared remote control unit.
During work, the dc voltage conversion of the DC12～18V that power supply box, outstation or other power-supply units is provided by power circuit for+5VDC and+supply voltage of 3VDC provides other unit and black-and-white component in the circuit.Black-and-white component is the gas sensor of methane gas.To after the black-and-white component power supply, black-and-white component exportable with environment in methane concentration become the voltage signal of linear approximate relationship.Signal amplification circuit outputs to the A/D change-over circuit to the voltage signal amplification filtering of black-and-white component output then, after the A/D conversion, obtains digital signal and is input to MCU.MCU calculates and handles the digital signal of A/D change-over circuit input, and the data that obtain are concentration value data of methane.According to concentration value data controlling signal output circuit, make its output electric signal (frequency signal) corresponding again, and its concentration value is presented at above the display unit intuitively with extraneous concentration of methane gas.If gas concentration value is greater than or equal to the alarm set point setting value, MCU then give an order control warning circuit send the sound and light alarm signal.If gas concentration value is then controlled power-down circuit output power-off signal greater than outage point setting value.
Claims (2)
1. methane transducer; Comprise the methane gas gas sensor; The methane gas gas sensor connects signal amplification circuit, and signal amplification circuit connects the A/D change-over circuit, it is characterized in that: the A/D change-over circuit connects microprocessor; Microprocessor connects power circuit, storage unit, signal output apparatus, outage output circuit, sound light alarming circuit, display unit and operating unit respectively; Wherein, power circuit connects external power supply, and signal output apparatus and outage output circuit connect external unit through aviation plug.
2. a kind of methane transducer as claimed in claim 1 is characterized in that: said operating unit is an infrared remote control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220161302 CN202583105U (en) | 2012-04-17 | 2012-04-17 | Methane sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220161302 CN202583105U (en) | 2012-04-17 | 2012-04-17 | Methane sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583105U true CN202583105U (en) | 2012-12-05 |
Family
ID=47252506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220161302 Expired - Fee Related CN202583105U (en) | 2012-04-17 | 2012-04-17 | Methane sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137028A (en) * | 2015-10-09 | 2015-12-09 | 扬中市南方矿用电器有限公司 | CJC4A methane measuring device |
| CN105717173A (en) * | 2016-03-30 | 2016-06-29 | 济南本安科技发展有限公司 | Two-wire toxic gas detector with digital display function |
-
2012
- 2012-04-17 CN CN 201220161302 patent/CN202583105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137028A (en) * | 2015-10-09 | 2015-12-09 | 扬中市南方矿用电器有限公司 | CJC4A methane measuring device |
| CN105717173A (en) * | 2016-03-30 | 2016-06-29 | 济南本安科技发展有限公司 | Two-wire toxic gas detector with digital display function |
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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: 20121205 Termination date: 20200417 |