CN203490190U - High-precision semiconductor expired gas alcohol concentration detector - Google Patents

High-precision semiconductor expired gas alcohol concentration detector Download PDF

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Publication number
CN203490190U
CN203490190U CN201320464377.3U CN201320464377U CN203490190U CN 203490190 U CN203490190 U CN 203490190U CN 201320464377 U CN201320464377 U CN 201320464377U CN 203490190 U CN203490190 U CN 203490190U
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China
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gas
sensor
alcohol
concentration detector
semiconductor
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Expired - Fee Related
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CN201320464377.3U
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Chinese (zh)
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项泽玉
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Individual
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Individual
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Abstract

The utility model provides a high-precision semiconductor expired gas alcohol concentration detector, and relates to the field of a semiconductor expired gas alcohol content detection technology. The high-precision semiconductor expired gas alcohol concentration detector comprises an exhalation detector shell, an expired gas pressure stabilization detection gas cavity, a control circuit assembly, a liquid crystal display (LCD), a control switch and a battery, wherein the control circuit assembly is internally provided with an alcohol sensor detection driving circuit, a gas flow detection sensor circuit and a singlechip microcomputer circuit. The high-precision semiconductor expired gas alcohol concentration detector can be used for detecting the alcohol content of the injected gas to be detected and the continuity and the gas injection intensity of the injected gas. The test results of the high-precision semiconductor expired gas alcohol concentration detector are good in accuracy and repeatability.

Description

High-precision semiconductor alcohol content of exhalation gas concentration detector
The utility model relates to alcoholicity of exhaled gas detection technique field, relates in particular to a kind of high-precision semiconductor alcohol content of exhalation gas concentration detector.
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 detector.
The utility model is to be achieved through the following technical solutions: high-precision semiconductor alcohol content of exhalation gas concentration detector, comprise detector shell, detector shell is divided into gas voltage stabilizing and detects air cavity and circuit mounting box two parts, gas 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 gas voltage stabilizing injects air cavity.Gas voltage stabilizing in detector shell detects air cavity bottom and is provided with circuit mounting box, fixed installation control circuit assembly and battery in circuit mounting box.In control circuit assembly, be provided with compensated semiconductor's alcohol gas sensor drive driving circuit, pneumatic sensor analysis circuit, liquid crystal display, and gauge tap and battery.
Operation and test result that high-precision semiconductor alcohol content of exhalation gas concentration detector completes test process by liquid crystal display and gauge tap show.
High-precision semiconductor alcohol content of exhalation gas concentration detector is simple in structure, adopt gas voltage stabilizing to detect air cavity, by the concentration alcohol gas to be measured being blown in semi-conductor gas alcohol concentration detector, 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.Test process adopts one-chip computer to control, and adopts the test curve the Fitting Calculation model of compensated semiconductor's alcohol gas sensor, and 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 block diagram of the utility model circuit.
Reference numeral: 1, detector shell; 2, breath voltage stabilizing detects air cavity; 3, compensated semiconductor's alcohol gas sensor; 4, air-flow detecting sensor; 5, gas inlet to be measured; 6, control circuit assembly; 7, circuit mounting box; 8, liquid crystal display; 9, gauge tap; 10, battery; 11, one-chip computer circuit; 12, disappointing groove; 13, alcohol sensor detects driving circuit; 14, air-flow detecting sensor circuit; 15, the alcohol concentration gas to be measured of breathing out; 16, gauge tap depression bar.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described further:
Shown in Fig. 1, high-precision semiconductor alcohol content of exhalation gas concentration detector, comprises detector shell 1, and detector shell 1 interior separation is that gas voltage stabilizing detects air cavity 2 and circuit mounting box 7 two parts.
Described gas voltage stabilizing detects air cavity 2 inside and is provided with compensated semiconductor's alcohol gas sensor 3 and pneumatic sensor 4.The top that described gas voltage stabilizing detects air cavity 2 is provided with gas inlet 5 to be measured, and detector shell 1 surface is provided with the groove 12 that loses heart.
Described circuit mounting box 7, inside is mounted with control circuit assembly 6.Described gauge tap 9 is arranged on the PCB of control circuit assembly 6, and gauge tap depression bar 16 exposes to the surface of detector shell 1.Liquid crystal display 8 and battery 10 are also installed in described circuit mounting box 7.
Shown in Fig. 2, in described control circuit assembly 6, be provided with one-chip computer circuit 11, alcohol sensor detects driving circuit 13, pneumatic sensor analysis circuit 14.
Described compensated semiconductor's alcohol gas sensor 3 detects driving circuit 13 with alcohol sensor and is electrically connected.Pneumatic sensor 4 detects driving circuit 14 with sensor and is electrically connected.
Described one-chip computer circuit 11 detects driving circuit 13 with alcohol sensor respectively and air-flow detecting sensor analysis circuit 14 is electrically connected.
Described one-chip computer circuit 11 is electrically connected with liquid crystal display 8 and gauge tap 9 respectively.
Described battery 10 is electrically connected with one-chip computer circuit 11.
Shown in Fig. 1, Fig. 2, described high-precision semiconductor alcohol content of exhalation gas concentration detector, during use, press gauge tap depression bar 16, again according to the prompting of liquid crystal display 8, aim at gas inlet 5 to be measured and be blown into alcohol concentration gas 15 to be measured, the utility model just can complete the alcohol content test of gas to be measured automatically, and concentration unit is in accordance with regulations presented in liquid crystal display 8.For guaranteeing the accuracy of test result and good test repeatability, circuit structure of the present utility model is provided with pneumatic sensor 4 and detects driving circuit 14 with sensor, to guarantee that the injection intensity that is blown into gas to be measured is with continuous.If be blown into gas to be measured by the time and intensity of test request, the utility model can normally detect and Output rusults, otherwise the utility model will interrupt this detection and point out operational testing again.
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 (7)

1. high-precision semiconductor alcohol content of exhalation gas concentration detector, comprise detector shell (1), gas voltage stabilizing detects air cavity (2), compensated semiconductor's alcohol gas sensor (3), pneumatic sensor (4), control circuit assembly (6), gauge tap (9), liquid crystal display (8) and battery (10), it is characterized in that: detector shell (1) inside is provided with gas voltage stabilizing and detects air cavity (2), compensated semiconductor's alcohol gas sensor (3), pneumatic sensor (4), control circuit assembly (6), gauge tap (9), liquid crystal display (8) and battery (10).
2. high-precision semiconductor alcohol content of exhalation gas concentration detector according to claim 1, is characterized in that: in detector shell (1), be divided into gas voltage stabilizing and detect air cavity (2) and circuit mounting box (7).
3. high-precision semiconductor alcohol content of exhalation gas concentration detector according to claim 1, it is characterized in that: gas voltage stabilizing detects air cavity (2) inside and is provided with compensated semiconductor's alcohol gas sensor (3) and pneumatic sensor (4), top is provided with gas inlet to be measured (5), and sidewall is provided with disappointing groove (12).
4. high-precision semiconductor alcohol content of exhalation gas concentration detector according to claim 1, it is characterized in that: circuit mounting box (7) inside is mounted with control circuit assembly (6), described gauge tap (9) is arranged on the PCB of control circuit assembly (6), gauge tap depression bar (16) exposes to the surface of detector shell (1), and liquid crystal display (8) and battery (10) are also installed in described circuit mounting box (7).
5. high-precision semiconductor alcohol content of exhalation gas concentration detector according to claim 1, it is characterized in that: in control circuit assembly (6), be provided with one-chip computer circuit (11), alcohol sensor detects driving circuit (13), pneumatic sensor analysis circuit (14).
6. high-precision semiconductor alcohol content of exhalation gas concentration detector according to claim 1, it is characterized in that: described compensated semiconductor's alcohol gas sensor (3) detects driving circuit (13) with alcohol sensor and is electrically connected, pneumatic sensor (4) detects driving circuit (14) with sensor and is electrically connected.
7. high-precision semiconductor alcohol content of exhalation gas concentration detector according to claim 1, is characterized in that: one-chip computer circuit (11) is electrically connected with alcohol sensor detection driving circuit (13), air-flow detecting sensor analysis circuit (14), liquid crystal display (8), gauge tap (9), battery (10) respectively.
CN201320464377.3U 2013-07-23 2013-07-23 High-precision semiconductor expired gas alcohol concentration detector Expired - Fee Related CN203490190U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320464377.3U CN203490190U (en) 2013-07-23 2013-07-23 High-precision semiconductor expired gas alcohol concentration detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320464377.3U CN203490190U (en) 2013-07-23 2013-07-23 High-precision semiconductor expired gas alcohol concentration detector

Publications (1)

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CN203490190U true CN203490190U (en) 2014-03-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106405123A (en) * 2016-11-22 2017-02-15 上海谘微信息技术发展有限公司 Alcoholometer whistle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106405123A (en) * 2016-11-22 2017-02-15 上海谘微信息技术发展有限公司 Alcoholometer whistle

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