CN203490189U - High-precision semiconductor expired gas alcohol concentration detection module - Google Patents
High-precision semiconductor expired gas alcohol concentration detection module Download PDFInfo
- Publication number
- CN203490189U CN203490189U CN201320396641.4U CN201320396641U CN203490189U CN 203490189 U CN203490189 U CN 203490189U CN 201320396641 U CN201320396641 U CN 201320396641U CN 203490189 U CN203490189 U CN 203490189U
- Authority
- CN
- China
- Prior art keywords
- gas
- semiconductor
- control circuit
- detects
- alcohol
- 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 Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model provides a high-precision semiconductor expired gas alcohol concentration detection module, and relates to the field of a semiconductor expired gas alcohol content detection technology. The high-precision semiconductor expired gas alcohol concentration detection module comprises an expired gas pressure stabilization detection gas cavity; the bottom of the expired gas pressure stabilization detection gas cavity is provided with a control circuit assembly bracket which is used for fixing a control circuit assembly; the control circuit assembly is internally provided with a compensation type alcohol gas sensor driving circuit, a gas flow sensor analysis circuit, a singlechip microcomputer, a signal transmission bus and a power supply control circuit. The high-precision semiconductor expired gas alcohol concentration detection module can be used for detecting the alcohol concentration of gas which is about to be detected and is injected into a semiconductor gas alcohol concentration detector and the continuity of the injected gas, thus guaranteeing the continuous detection time of a semiconductor alcohol gas sensor. The test results of the high-precision semiconductor expired gas alcohol concentration detection module are good in accuracy and repeatability.
Description
Technical field
The utility model relates to alcoholicity of exhaled gas detection technique field, relates in particular to the high-precision semiconductor alcohol content of exhalation gas concentration detection module that a kind of alcohol content of exhalation gas concentration detector is used.
Background technology
After people drink, drunk degree is generally determined by the alcohol content of chemical examination blood, also can be inferred by the alcohol content of breath.Conventionally the alcohol content in exhaling with the alcohol content of exhalation gas concentration detector person that detects motor vehicle driving, thus whether judgement driver drives when intoxicated.
Existing used semiconductor alcohol content of exhalation gas concentration detector, it is simple in structure, cheap, thereby is used in a large number.But, the semiconductor alcohol content of exhalation gas concentration detector using at present, substantially be all that the gas that the needs of exhalation are detected directly injects semiconductor alcohol content of exhalation gas concentration detector by mouthpiece or blowpipe, common semiconductor alcohol gas sensor is directly injected in the expiration of injecting, because the structure of design is different, the position of common semiconductor alcohol gas sensor is different, cause its testing conditions different, so that have a strong impact on the test accuracy of semi-conductor gas alcohol concentration detector, and the repeatability of test result is poor.
Utility model content
The purpose of this utility model is to provide a kind of high-precision semiconductor alcohol content of exhalation gas concentration to detect module.
The utility model is to be achieved through the following technical solutions: high-precision semiconductor alcohol content of exhalation gas concentration detects module, comprise that breath voltage stabilizing detects air cavity, breath voltage stabilizing detects air cavity inside and is provided with compensated semiconductor's alcohol gas sensor and pneumatic sensor, and breath to be measured detects air cavity top gas inlet by being located at breath voltage stabilizing injects air cavity.Breath voltage stabilizing detects air cavity bottom and is provided with control circuit assembly bracket, and control circuit assembly is fixed on this.In control circuit assembly, be provided with compensated semiconductor's alcohol gas sensor drive driving circuit, pneumatic sensor analysis circuit, one-chip computer and signal transmission bus and power control circuit.
High-precision semiconductor alcohol content of exhalation gas concentration detects module and does not establish man-machine interface, during use, only need access external power source, outside subscriber's line circuit can receive various information and the instruction that the utility model module sends by signal transmission bus, external user carries out the coding display line correlation operation of going forward side by side to these information and instruction, completes test process.
When high-precision semiconductor alcohol content of exhalation gas concentration detects module use, mounting ear can embed in the housing that is fixed on semiconductor alcohol content of exhalation gas concentration detector.
The utility model is simple in structure, adopt breath voltage stabilizing to detect air cavity, the concentration alcohol gas to be measured of semi-conductor gas alcohol concentration detector will be injected, automatically be adjusted to the gas field that is applicable to semiconductor transducer work, can also detect the continuity of injecting gas, guarantee the continuous detecting time of compensated semiconductor's alcohol gas sensor simultaneously.Its test result has good accuracy and repeatability.
Accompanying drawing explanation
Fig. 1 is the front schematic view of the utility model structure;
Fig. 2 is the side schematic view of the utility model structure;
Fig. 3 is the block diagram of the utility model circuit.
Reference numeral: 1, breath voltage stabilizing detects air cavity; 2, gas inlet to be measured; 3, control circuit fixed support; 4, compensated semiconductor's alcohol gas sensor; 5, air-flow detecting sensor; 6, control circuit assembly; 7, sensor drive driving circuit; 8, air-flow detecting sensor analysis circuit; 9, one-chip computer circuit; 10, signal transmission bus; 11, power control circuit; 12, external power source; The concentration alcohol gas to be measured of 13, breathing out; 14, mounting ear.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described further:
Shown in seeing figures.1.and.2, high-precision semiconductor alcohol content of exhalation gas concentration detects module, comprise that breath voltage stabilizing detects air cavity 1, gas inlet 2 to be measured, control circuit assembly fixed support 3, compensated semiconductor's alcohol gas sensor 4, air-flow detecting sensor 5, control circuit assembly 6, sensor drive driving circuit 7, air-flow detecting sensor analysis circuit 8, one-chip computer circuit 9, signal transmission bus 10, power control circuit 11, external power source 12, the alcohol gas 13 of concentration to be measured, mounting ear 14.
Described breath constant current constant voltage detects air chamber 1 inside and is provided with compensated semiconductor's alcohol gas sensor 4 and pneumatic sensor 5, and the alcohol gas 13 of concentration to be measured detects air cavity 1 top gas inlet to be measured 2 by being located at breath voltage stabilizing injects air chamber 1.
Described breath voltage stabilizing detects air cavity 1 both sides and is provided with mounting ear 14.
Described breath voltage stabilizing detects air cavity 1 bottom and is provided with control circuit assembly bracket 3, and control circuit assembly 6 is fixed on control circuit and props up in assembly frame 3.
In described control circuit assembly 6, be provided with compensated semiconductor's alcohol gas sensor drive driving circuit 7, pneumatic sensor analysis circuit 8, one-chip computer circuit 9 and signal transmission bus 10 and power control circuit 11.
Described one-chip computer circuit 9 is electrically connected with compensated semiconductor's alcohol gas sensor drive driving circuit 7.
Described compensated semiconductor's alcohol gas sensor drive driving circuit 7 is electrically connected with compensated semiconductor's alcohol gas sensor 4.
Detection signal and the one-chip computer circuit 9 of described compensated semiconductor's alcohol gas sensor 4 are electrically connected.
The detection signal of described pneumatic sensor 5 and air-flow detecting sensor analysis circuit 8 are electrically connected.
Described air-flow detecting sensor analysis circuit 8 is electrically connected with one-chip computer circuit 9.
Described one-chip computer circuit 9 is electrically connected with signal transmission bus 10.
Described power control circuit 11 is electrically connected with one-chip computer circuit 9.
Described power control circuit 11 is electrically connected with external power source 12.
Shown in Fig. 3, described high-precision semiconductor alcohol content of exhalation gas concentration detects module, during use, only need access external power source 12, outside subscriber's line circuit can receive various information and the instruction that the utility model module sends by signal transmission bus 10, external user carries out the coding display line correlation operation of going forward side by side to these information and instruction, high-precision semiconductor alcohol content of exhalation gas concentration detects module and enters alcohol content of exhalation gas concentration detecting pattern, 7 operations of 9 pairs of compensated semiconductor's alcohol gas sensor drive driving circuits of one-chip computer circuit, drive 4 work of compensated semiconductor's alcohol gas sensor, external user is pressed the instruction of one-chip computer circuit 9, by the exhalation of the current rate that meets the requirements concentration alcohol gas 13 to be measured, inject continuously the gas inlet to be measured 2 that breath voltage stabilizing detects air cavity 1, compensated semiconductor's alcohol gas sensor 4 detect sensitive signal be transferred to one-chip computer circuit 9 and carry out analytical calculation, result of calculation sends to outside subscriber's line circuit by signal transmission bus 10.This test process completes.
Inject the gas inlet to be measured 2 that breath voltage stabilizing detects air cavity 1, air-flow detecting sensor 5 detects airflow signal, be transferred to 8 analytical calculations of air-flow detecting sensor analysis circuit, if current rate backlog demand or gas injection being detected interrupts, be transferred to air-flow detecting sensor analysis circuit 8 and will send gas injection false command to one-chip computer circuit 9, one-chip computer circuit 9 will stop this test, and send gas injection rub-out signal by the subscriber's line circuit of signal transmission bus 10 outsides.This test process completes.
When described high-precision semiconductor alcohol content of exhalation gas concentration detects module use, mounting ear 14 can embed in the housing that is fixed on user's semiconductor alcohol content of exhalation gas concentration detector.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the utility model is not limited to embodiment disclosed and described above, to modifications and changes more of the present utility model, also should fall in the protection domain of claim of the present utility model.In addition,, although used some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (6)
1. high-precision semiconductor alcohol content of exhalation gas concentration detects module, comprise that breath voltage stabilizing detects air cavity, compensated semiconductor's alcohol gas sensor, air-flow detecting sensor, control circuit assembly, it is characterized in that: breath voltage stabilizing detects air cavity inside compensated semiconductor's alcohol gas sensor and air-flow detecting sensor are installed, control circuit assembly fixed in position detects the bottom of air cavity in breath voltage stabilizing.
2. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: control circuit assembly is by sensor drive driving circuit, air-flow detecting sensor analysis circuit, one-chip computer circuit, signal transmission bus, power control circuit is jointly assembled on printed circuit board (PCB) and forms.
3. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: compensated semiconductor's alcohol gas installation of sensors, in breath voltage stabilizing detects the cavity of air cavity, is electrically connected with sensor drive driving circuit.
4. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: air-flow detecting sensor is arranged in the cavity of breath voltage stabilizing detection air cavity, is electrically connected with air-flow detecting sensor analysis circuit.
5. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: the one-chip computer in control circuit assembly and sensor drive driving circuit and air-flow detecting sensor analysis circuit are electrically connected.
6. high-precision semiconductor alcohol content of exhalation gas concentration according to claim 1 detects module, it is characterized in that: control circuit assembly and external circuit that high-precision semiconductor alcohol content of exhalation gas concentration detects in module are electrically connected by signal bus, carry out the transmission exchange of instruction and signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396641.4U CN203490189U (en) | 2013-06-28 | 2013-06-28 | High-precision semiconductor expired gas alcohol concentration detection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396641.4U CN203490189U (en) | 2013-06-28 | 2013-06-28 | High-precision semiconductor expired gas alcohol concentration detection module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203490189U true CN203490189U (en) | 2014-03-19 |
Family
ID=50261011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320396641.4U Expired - Fee Related CN203490189U (en) | 2013-06-28 | 2013-06-28 | High-precision semiconductor expired gas alcohol concentration detection module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203490189U (en) |
-
2013
- 2013-06-28 CN CN201320396641.4U patent/CN203490189U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4709630B2 (en) | Breath alcohol measurement method | |
| CN203616851U (en) | Laser methane concentration sensor | |
| KR101097952B1 (en) | A drunkometer sensing malfunction of alcholsensor | |
| KR20110029749A (en) | A drunkometer | |
| CN203490189U (en) | High-precision semiconductor expired gas alcohol concentration detection module | |
| CN204495829U (en) | A kind of hand-held end-expiratory carbon dioxide detector | |
| JP2008232710A (en) | Expiration examination device | |
| CN103344671A (en) | High-precision semiconductor exhaled gas alcohol concentration detection module | |
| CN203490190U (en) | High-precision semiconductor expired gas alcohol concentration detector | |
| CN203206309U (en) | Mobile phone with built-in independent replaceable detection apparatus | |
| CN201548510U (en) | Air quality monitoring device | |
| CN202491690U (en) | Drunk driving detection system | |
| CN109631187A (en) | A kind of Intelligent air purifier and its display mode with heart rate and blood oxygen detection | |
| CN204142196U (en) | Car guide rail rail gauge measuring apparatus | |
| CN103768736A (en) | Intelligent respirator detection device | |
| CN207004780U (en) | Extraction flow control system based on double absolute pressure methods in side stream type gasmetry | |
| CN210472151U (en) | No button indicates to press from both sides formula pulse oximeter | |
| CN207557754U (en) | A kind of detection device of electronic type vacuum pressure controller | |
| CN103018427A (en) | Instrument for testing and demonstrating article gas release | |
| CN205665237U (en) | Portable dissolved oxygen determination appearance | |
| KR20220047097A (en) | The contactless breath alcohol analyzer | |
| CN203455343U (en) | Portable methane detecting alarm with independent gas chamber | |
| CN104730203A (en) | Hydrogen concentration detector with temperature measurement function | |
| CN209014575U (en) | A kind of Vehicular multifunctional alcohol tester | |
| CN204950919U (en) | Health monitoring system device of testable rhythm of heart of mirror surface formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xiang Zeyu Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Xiang Zeyu Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |