CN203772780U - Alcohol concentration tester - Google Patents
Alcohol concentration tester Download PDFInfo
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- CN203772780U CN203772780U CN201420019417.8U CN201420019417U CN203772780U CN 203772780 U CN203772780 U CN 203772780U CN 201420019417 U CN201420019417 U CN 201420019417U CN 203772780 U CN203772780 U CN 203772780U
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Abstract
The utility model discloses an alcohol concentration tester and belongs to the technical field of alcohol testers. The alcohol concentration tester comprises an alcohol concentration detection circuit, a voltage division circuit, an execution mechanism circuit and an alarm circuit, wherein the alcohol concentration detection circuit is electrically connected with the voltage division circuit; the voltage division circuit is electrically connected with the execution mechanism circuit; the execution mechanism circuit is electrically connected with the alarm circuit. A circuit structure of an existing alcohol concentration tester is improved, the circuit structure is simplified, the cost is reduced, the test accuracy is improved, and the response is sensitive without delay.
Description
Technical field
The utility model relates to a kind of tester, and specifically a kind of tester for alcohol concentration, belongs to alcohol tester technical field.
Background technology
Driving when intoxicated is a principal element that causes traffic hazard, in order to prevent that vehicle driving personnel from driving when intoxicated, on-the-spot test human body exhale in alcohol content come into one's own, so tester for alcohol concentration slowly obtain pay close attention to widely and apply.
When alcohol reaches finite concentration in blood of human body, will benumb nerve, cause brain response slow, the symptom such as limbs are uncontrolled.People's reaction capacity and control ability to external world will decline, and the ability dealing with an urgent situation also declines thereupon.For drunken driving, its alcohol content in blood is higher, and the probability that collision occurs is larger.According to the accident investigation of world organization, about 50%-69% traffic hazard with drive when intoxicated relevant, drive when intoxicated and be listed in the main cause that traffic accident is lethal, from factory and enterprise to resident family, detection, the monitoring that alcohol is revealed and be all very important and requisite to resident's the person and property safety to the monitoring of driving when intoxicated.
Nowadays, because people's awareness of safety is strengthened gradually, environmentally safe property and life comfortableness require to improve, and add gas sensor to the development of low-power consumption, multi-functional, integrated direction.Therefore, tester for alcohol concentration has very wide real market and market potential demand, and the tester for alcohol concentration circuit structure using is at present complicated, and test accuracy rate is on the low side, slow in reacting.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of tester for alcohol concentration, and existing circuit structure is improved, and when simplifying circuit structure, improves the test intensity of tester for alcohol concentration.
To achieve these goals, the technical solution adopted in the utility model is: a kind of tester for alcohol concentration, comprise alcohol concentration testing circuit, partial pressure type circuit, actuating mechanism circuit and warning circuit, described alcohol concentration testing circuit and partial pressure type circuit are electrically connected to, partial pressure type circuit and actuating mechanism circuit are electrically connected to, and actuating mechanism circuit and warning circuit are electrically connected to; Described alcohol concentration testing circuit comprises MQ-3 alcohol sensor, partial pressure type circuit comprises potentiometer R2 and resistance R 3, actuating mechanism circuit comprises integrated circuit (IC) chip LM3914, resistance R 4 and resistance R 5, and warning circuit comprises LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, LED 7, LED 8, resistance R 1, diode VD1, diode VD2, diode VD3, triode VT1 and hummer H.
Further, the pin one of MQ-3 alcohol sensor, pin 5 and connect+5V of pin 4 power supply, the pin two ground connection of MQ-3 alcohol sensor, the pin 3 of MQ-3 alcohol sensor, pin 6 is by resistance R 3, ground connection after potentiometer R2, the pin two of integrated circuit (IC) chip LM3914, pin 4 ground connection, connect+5V of pin 3 power supply of integrated circuit (IC) chip LM3914, the pin 5 of integrated circuit (IC) chip LM3914 is by potentiometer R2 ground connection, the pin 6 of integrated circuit (IC) chip LM3914, pin 7 connects by resistance R 5 and is connected rear resistance R 4 ground connection of passing through with pin 8, the pin 9 of integrated circuit (IC) chip LM3914, after connecting, pin one 1 is connected with the negative electrode of LED 7, the pin one 0 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 8, the pin one 2 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 6, the pin one 3 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 5, the pin one 4 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of diode VD1 by resistance R 1, the pin one 5 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 4, the pin one 6 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 3, the pin one 7 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 2, the pin one 8 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 1, LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, connect respectively+5V of the anode of LED 7 and LED 8 power supply, the anode of diode VD1 is by the negative electrode of diode VD2, the negative electrode of diode VD3 is connected with the base stage B of triode VT1, connect+5V of the emitter E of triode VT1 power supply, the collector C of triode VT1 is by hummer H ground connection.
The beneficial effects of the utility model are: by existing tester for alcohol concentration circuit structure is improved, circuit structure is simplified, when reducing costs, improved the accuracy rate of test, be quick on the draw, speed is fast and without delay.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of tester for alcohol concentration, comprise alcohol concentration testing circuit, partial pressure type circuit, actuating mechanism circuit and warning circuit, described alcohol concentration testing circuit and partial pressure type circuit are electrically connected to, partial pressure type circuit and actuating mechanism circuit are electrically connected to, and actuating mechanism circuit and warning circuit are electrically connected to; Described alcohol concentration testing circuit comprises MQ-3 alcohol sensor, partial pressure type circuit comprises potentiometer R2 and resistance R 3, actuating mechanism circuit comprises integrated circuit (IC) chip LM3914, resistance R 4 and resistance R 5, and warning circuit comprises LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, LED 7, LED 8, resistance R 1, diode VD1, diode VD2, diode VD3, triode VT1 and hummer H.
The pin one of MQ-3 alcohol sensor, pin 5 and connect+5V of pin 4 power supply, the pin two ground connection of MQ-3 alcohol sensor, the pin 3 of MQ-3 alcohol sensor, pin 6 is by resistance R 3, ground connection after potentiometer R2, the pin two of integrated circuit (IC) chip LM3914, pin 4 ground connection, connect+5V of pin 3 power supply of integrated circuit (IC) chip LM3914, the pin 5 of integrated circuit (IC) chip LM3914 is by potentiometer R2 ground connection, the pin 6 of integrated circuit (IC) chip LM3914, pin 7 connects by resistance R 5 and is connected rear resistance R 4 ground connection of passing through with pin 8, the pin 9 of integrated circuit (IC) chip LM3914, after connecting, pin one 1 is connected with the negative electrode of LED 7, the pin one 0 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 8, the pin one 2 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 6, the pin one 3 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 5, the pin one 4 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of diode VD1 by resistance R 1, the pin one 5 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 4, the pin one 6 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 3, the pin one 7 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 2, the pin one 8 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 1, LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, connect respectively+5V of the anode of LED 7 and LED 8 power supply, the anode of diode VD1 is by the negative electrode of diode VD2, the negative electrode of diode VD3 is connected with the base stage B of triode VT1, connect+5V of the emitter E of triode VT1 power supply, the collector C of triode VT1 is by hummer H ground connection.
The course of work: this circuit employing+5V Power supply, front end is MQ-3 alcohol sensor, utilize partial pressure type circuit that alcohol concentration is converted into voltage by resistance, the integrated circuit (IC) chip LM3914 passing through again, according to the corresponding lumination of light emitting diode of voltage swing driver output, when in body, alcohol concentration content surpasses certain numerical value, LED 5, LED 6, LED 7 and LED 8 send red indication, when in body, alcohol concentration content is lower than certain numerical value, LED 1, LED 2, LED 3 and LED 4 send green indication, when reaching certain threshold voltage, hummer is triggered, send chimes of doom.By regulator potentiometer R2, regulate the sensitivity of tester for alcohol concentration.
Claims (2)
1. a tester for alcohol concentration, it is characterized in that, comprise alcohol concentration testing circuit, partial pressure type circuit, actuating mechanism circuit and warning circuit, described alcohol concentration testing circuit and partial pressure type circuit are electrically connected to, partial pressure type circuit and actuating mechanism circuit are electrically connected to, and actuating mechanism circuit and warning circuit are electrically connected to; Described alcohol concentration testing circuit comprises MQ-3 alcohol sensor, partial pressure type circuit comprises potentiometer R2 and resistance R 3, actuating mechanism circuit comprises integrated circuit (IC) chip LM3914, resistance R 4 and resistance R 5, and warning circuit comprises LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, LED 7, LED 8, resistance R 1, diode VD1, diode VD2, diode VD3, triode VT1 and hummer H.
2. a kind of tester for alcohol concentration according to claim 1, it is characterized in that, the pin one of MQ-3 alcohol sensor, pin 5 and connect+5V of pin 4 power supply, the pin two ground connection of MQ-3 alcohol sensor, the pin 3 of MQ-3 alcohol sensor, pin 6 is by resistance R 3, ground connection after potentiometer R2, the pin two of integrated circuit (IC) chip LM3914, pin 4 ground connection, connect+5V of pin 3 power supply of integrated circuit (IC) chip LM3914, the pin 5 of integrated circuit (IC) chip LM3914 is by potentiometer R2 ground connection, the pin 6 of integrated circuit (IC) chip LM3914, pin 7 connects by resistance R 5 and is connected rear resistance R 4 ground connection of passing through with pin 8, the pin 9 of integrated circuit (IC) chip LM3914, after connecting, pin one 1 is connected with the negative electrode of LED 7, the pin one 0 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 8, the pin one 2 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 6, the pin one 3 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 5, the pin one 4 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of diode VD1 by resistance R 1, the pin one 5 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 4, the pin one 6 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 3, the pin one 7 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 2, the pin one 8 of integrated circuit (IC) chip LM3914 is connected with the negative electrode of LED 1, LED 1, LED 2, LED 3, LED 4, LED 5, LED 6, connect respectively+5V of the anode of LED 7 and LED 8 power supply, the anode of diode VD1 is by the negative electrode of diode VD2, the negative electrode of diode VD3 is connected with the base stage B of triode VT1, connect+5V of the emitter E of triode VT1 power supply, the collector C of triode VT1 is by hummer H ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019417.8U CN203772780U (en) | 2014-01-13 | 2014-01-13 | Alcohol concentration tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420019417.8U CN203772780U (en) | 2014-01-13 | 2014-01-13 | Alcohol concentration tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772780U true CN203772780U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420019417.8U Expired - Fee Related CN203772780U (en) | 2014-01-13 | 2014-01-13 | Alcohol concentration tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN203772780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959632A (en) * | 2017-03-04 | 2017-07-18 | 长沙开雅电子科技有限公司 | A kind of tester for alcohol concentration |
-
2014
- 2014-01-13 CN CN201420019417.8U patent/CN203772780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106959632A (en) * | 2017-03-04 | 2017-07-18 | 长沙开雅电子科技有限公司 | A kind of tester for alcohol concentration |
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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 |
Granted publication date: 20140813 Termination date: 20150113 |
|
| EXPY | Termination of patent right or utility model |