CN102221571B - Online rapid detector for perfuming uniformity of shredded tobacco - Google Patents
Online rapid detector for perfuming uniformity of shredded tobacco Download PDFInfo
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- CN102221571B CN102221571B CN 201010148309 CN201010148309A CN102221571B CN 102221571 B CN102221571 B CN 102221571B CN 201010148309 CN201010148309 CN 201010148309 CN 201010148309 A CN201010148309 A CN 201010148309A CN 102221571 B CN102221571 B CN 102221571B
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Abstract
The invention relates to an online rapid detector for the perfuming uniformity of shredded tobacco. The online rapid detector comprises a first sensor 1, a second sensor 2, a detection point measuring circuit 3, a reference point measuring circuit 4 and a data acquiring module 5, wherein the first sensor 1 is connected with the data acquiring module 5 through the detection point measuring circuit 3; and the second sensor 2 is connected with the data acquiring module 5 through the reference point measuring point 4. In the invention, a reference method is adopted, so that the influence of environmental factors on measuring results is eliminated effectively; and the detector is also suitable for detecting the concentrations of other high-concentration alcohols, has no requirement of air tightness on a detection point environment, can be used for realizing continuous real-time detection, and has a wide application range.
Description
Technical field
The present invention relates to the detection, particularly a kind of tobacco perfuming homogeneity on-line detector of the alcohol concentration of volatilizing in a kind of perfuming cigarette process.
Background technology
At present, the detection for the alcohol concentration of volatilizing in the perfuming cigarette process does not also have special testing instrument.Detection for the characteristics of contaminated respiratory droplets alcohol degree of depth mainly is to utilize portable hand held alcohol concentration detector, but when using this detector, can there be certain limitation, it is only applicable to the detection of check point alcohol concentration under closed environment, and its detection is that discontinuity detects, can not realize continuously, detect in real time, also having it to detect sample is breath, contained alcohol concentration is higher, be not suitable for the detection of the low-concentration ethanol of nature volatilization, moreover, its scope of application is little, is not suitable for the detection that the tobacco perfuming process volatilizes alcohol.
In addition, in order to prevent driving when intoxicated, also there is the people to detect the drink concentration of rear exhalation alcohol of people with vehicle-mounted alcohol detection apparatus, but use the deficiency of this monitor to be: except having above-mentioned limitation, also to be subjected to such environmental effects large, if its testing result just had deviation when the alcohol content of itself was larger in the air, cause testing result inaccurate.
Summary of the invention
In order to solve existing problem in the prior art, the invention provides a kind of be subjected to such environmental effects little, can detect in real time online and tobacco perfuming homogeneity on-line quick detection instrument that the scope of application is wider.
Involved in the present invention is a kind of tobacco perfuming homogeneity on-line quick detection instrument, and its special character is: described on-line quick detection instrument comprises first sensor, the second sensor, check point metering circuit, reference point metering circuit, data acquisition module; Described first sensor is connected with data acquisition module by the check point metering circuit; Described the second sensor is to be connected with data acquisition module by the reference point metering circuit.
Above-mentioned on-line quick detection instrument also comprises communication conversion module and computing machine; Computing machine is to be connected with data acquisition module by communication conversion module.
Above-mentioned tested point metering circuit is connected with the reference point metering circuit and is comprised of the sensor excitation circuit and the differential amplifier circuit that connect successively.
The sensor exciting circuit comprises alcohol sensor, voltage stabilizer, diode DI, capacitor C 3, resistance R 2, adjusts output circuit and voltage follower circuit; The input end of described capacitor C 3 connects the output terminal of voltage stabilizer, the output head grounding of capacitor C 3; The input end of described resistance R 2 is connected with the output terminal of voltage stabilizer, and output terminal is connected with light emitting diode DI and consisted of LED circuit; The input end of described alcohol sensor is connected with the output terminal of voltage stabilizer; Described adjustment output circuit is to be composed in series by fixed resistance R3 and slide rheostat R120, and the end of slide rheostat R120 is connected with the earthmeter utmost point of alcohol sensor, and the other end is connected with the output terminal of alcohol sensor by fixed resistance R3; The input end of described voltage follower circuit is connected with the output terminal of alcohol sensor, and the output terminal of voltage follower circuit is connected with the input end of described differential amplifier circuit.
Above-mentioned first sensor and the second sensor all can adopt QM-J1 alcohol sensor or SCH-004 alcohol sensor.
The invention has the beneficial effects as follows:
Its sensor measurement electronic circuit board of tobacco perfuming homogeneity on-line quick detection instrument provided by the present invention adopts the reference method, one drive test amount tested point concentration, another drive test amount ambient concentration as the reference contrast, has effectively been eliminated the impact of environmental factor on measurement result; It detects sample is the alcohol concentration that pipe tobacco volatilizes in the perfuming cigarette process, also applicable to the detection of other alcohol in high concentration concentration, do not require whether airtight the check point environment is, detector provided by the invention is that continuity detects simultaneously, can realize continuously, detect in real time, can accurately detect the detection of 0～10% alcohol concentration, the scope of application is also wider.
Also have, tobacco perfuming homogeneity on-line quick detection instrument provided by the invention also comprises communication conversion module and computing machine, so its measurement result also shows with waveform except numeral shows in real time, directly perceived and convenient, and have data processing, analysis and historical query function.
Description of drawings
Fig. 1 is the system architecture schematic diagram;
Fig. 2 is the sensor excitation circuit;
Among the figure: 1-first sensor, 2-the second sensor, 3-tested point metering circuit, 4-reference point metering circuit, 5-data acquisition module, 6-communication conversion module, 7-computing machine.
Embodiment
Involved in the present invention is a kind of tobacco perfuming homogeneity on-line quick detection instrument, referring to Fig. 1, comprise first sensor 1, the second sensor 2, check point metering circuit 3, reference point metering circuit 4, data acquisition module 5, communication conversion module 6 and computing machine 7; First sensor 1 is connected with data acquisition module 5 by check point metering circuit 3; Described the second sensor 2 is to be connected with data acquisition module 5 by reference point metering circuit 4, and communication conversion module 6 is connected between data acquisition module 5 and the computing machine 7.
The essence that in the perfuming cigarette process, applies generally all with alcohol as solvent, and alcohol has stronger volatility, therefore can by measuring the alcohol concentration of volatilizing in the air of pipe tobacco top, can estimate the homogeneity of tobacco perfuming.On-line quick detection instrument involved in the present invention is to change tested point and reference point (being environment) alcohol concentration into voltage signal respectively by first sensor 1 and the second sensor 2, tested point metering circuit 3 and reference point metering circuit 4 receive respectively the voltage signal by first sensor 1 and 2 inputs of the second sensor, and the signal of first sensor 1 and the input of the second sensor 2 after amplifying, differential amplifier circuit exported to data acquisition module 5 more simultaneously through the sensor excitation processing of circuit, data acquisition module 5 is converted to concentration signal with the voltage signal that collects, afterwards, data acquisition module 5 is crossed communication conversion module 6 input computing machines 7 with the data communication device that collects, carry out various data operations, analyze, and with the testing result storage, in order to inquiry; After system processes, obtain the alcohol concentration of actual tested point, be the concentration that first sensor 1 detects and deduct the concentration that the second sensor 2 detects, so just eliminated the impact of environmental factor, obtain accurately numerical value.
Above-mentioned first sensor 1 and the second sensor 2 all can adopt QM-J1 model alcohol sensor or SCH-004 model alcohol sensor.
Tested point metering circuit 3 and reference point metering circuit 4 all are comprised of sensor excitation circuit and differential amplifier circuit, the input end of sensing exciting circuit is connected with the output terminal of first sensor 1 or the second sensor 2, its output terminal is connected with the input end of differential amplifier circuit, sends respectively the signal that first sensor 1 and the second sensor 2 gather to data acquisition module 5 by differential amplifier circuit.
Referring to Fig. 2, the sensor excitation circuit comprises alcohol sensor, voltage stabilizer, diode DI, capacitor C 3, resistance R 2, adjusts output circuit and voltage follower circuit; The input end of capacitor C 3 connects the output terminal of voltage stabilizer, the output head grounding of capacitor C 3; The input end of resistance R 2 is connected with the output terminal of voltage stabilizer, and output terminal is connected with light emitting diode DI and consisted of LED circuit; The input end of alcohol sensor is connected with the output terminal of voltage stabilizer; Adjusting output circuit is that the end of slide rheostat R120 is connected with the earthmeter utmost point of alcohol sensor by fixed resistance R3 and slide rheostat R120 series connection, and the other end is connected with the output terminal of alcohol sensor by fixed resistance R3; The input end of voltage follower circuit is connected with the output terminal of alcohol sensor, and the output terminal of voltage follower circuit is connected with the input end of differential amplifier circuit.Generally can adopt QM-J1 alcohol sensor and L7805CV voltage stabilizer, voltage stabilizer L7805CV provides+heating voltage and the measuring voltage of 5V alcohol sensor QM-J1, QM-J1 is the heater-type gas sensor, belong to the resistor-type semiconductor transducer, measure the utmost point comprising two, one is measured the utmost point is to connect output end of voltage stabilizer, another measures the utmost point is ground connection, be also referred to as the earthmeter utmost point, in addition, this sensor also has two terminal and two lead-out terminals of connecting heater strip, and the terminal of link heater strip can make heater strip not contact with gas sensitive, has avoided influencing each other between measuring circuit and the heating circuit.The circuit working principle: the heating terminal 1 of sensor QM-J1,2 is under the burning voltage effect of stabilized voltage supply L7805CV, make sensor be heated to the relevant work temperature, difference along with the detected alcohol degree of depth, its sensing body 3,4 resistance change, by resistance R 3 output induced voltage signals, be transported to differential amplifier circuit.
Differential amplifier circuit can adopt LM324 four high guaily unit circuit, but general LM324 four high guaily unit circuit power voltage range is wide, the little single supply of quiescent dissipation uses, and cheap.
Claims (6)
1. tobacco perfuming homogeneity on-line quick detection instrument, it is characterized in that: described on-line quick detection instrument comprises first sensor, the second sensor, check point metering circuit, reference point metering circuit, data acquisition module; Described first sensor is connected with data acquisition module by the check point metering circuit; Described the second sensor is to be connected with data acquisition module by the reference point metering circuit; Described check point metering circuit is connected with the reference point metering circuit and is comprised of the sensor excitation circuit and the differential amplifier circuit that connect successively; Described sensor excitation circuit comprises alcohol sensor, voltage stabilizer, light emitting diode DI, capacitor C 3, resistance R 2, adjusts output circuit and voltage follower circuit; The input end of described capacitor C 3 connects the output terminal of voltage stabilizer, the output head grounding of capacitor C 3; The input end of described resistance R 2 is connected with the output terminal of voltage stabilizer, and the output terminal of resistance R 2 is connected with light emitting diode DI and consisted of LED circuit; The input end of described alcohol sensor is connected with the output terminal of voltage stabilizer; Described adjustment output circuit is to be composed in series by fixed resistance R3 and slide rheostat R120, and the end of described slide rheostat R120 is connected with the earthmeter utmost point of alcohol sensor, and the other end is connected with the output terminal of alcohol sensor by fixed resistance R3; The input end of described voltage follower circuit is connected with the output terminal of alcohol sensor, and the output terminal of voltage follower circuit is connected with the input end of described differential amplifier circuit.
2. tobacco perfuming homogeneity on-line quick detection instrument according to claim 1, it is characterized in that: described on-line quick detection instrument also comprises communication conversion module and computing machine; Described computing machine is to be connected with data acquisition module by communication conversion module.
3. tobacco perfuming homogeneity on-line quick detection instrument according to claim 2, it is characterized in that: described first sensor and the second sensor all adopt QM-J1 alcohol sensor or SCH-004 alcohol sensor.
4. want 3 described tobacco perfuming homogeneity on-line quick detection instrument according to right, it is characterized in that: the model of described differential amplifier circuit is LM324.
5. tobacco perfuming homogeneity on-line quick detection instrument according to claim 4, it is characterized in that: the model of described data acquisition module is ADAM-4019.
6. tobacco perfuming homogeneity on-line quick detection instrument according to claim 5, it is characterized in that: the model of described communication conversion module is ADAM-4520.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010148309 CN102221571B (en) | 2010-04-16 | 2010-04-16 | Online rapid detector for perfuming uniformity of shredded tobacco |
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| CN 201010148309 CN102221571B (en) | 2010-04-16 | 2010-04-16 | Online rapid detector for perfuming uniformity of shredded tobacco |
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| CN102221571B true CN102221571B (en) | 2013-01-02 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453584A (en) * | 2003-06-02 | 2003-11-05 | 江苏大学 | Fast non-destructive detection method and device of food smell based on gas sensor array technology |
| CN1687764A (en) * | 2005-04-30 | 2005-10-26 | 广东中烟工业公司 | Device for testing smell of auxiliary material for cigarette |
| CN101308120A (en) * | 2008-06-09 | 2008-11-19 | 重庆烟草工业有限责任公司 | Cigar flavour quality control method |
| CN101526470A (en) * | 2009-04-22 | 2009-09-09 | 川渝中烟工业公司 | Method for detecting essence for tobacco |
| CN201653961U (en) * | 2010-04-16 | 2010-11-24 | 陕西中烟工业有限责任公司 | On-line quick detection instrument for perfuming uniformity of tobacco shreds |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453584A (en) * | 2003-06-02 | 2003-11-05 | 江苏大学 | Fast non-destructive detection method and device of food smell based on gas sensor array technology |
| CN1687764A (en) * | 2005-04-30 | 2005-10-26 | 广东中烟工业公司 | Device for testing smell of auxiliary material for cigarette |
| CN101308120A (en) * | 2008-06-09 | 2008-11-19 | 重庆烟草工业有限责任公司 | Cigar flavour quality control method |
| CN101526470A (en) * | 2009-04-22 | 2009-09-09 | 川渝中烟工业公司 | Method for detecting essence for tobacco |
| CN201653961U (en) * | 2010-04-16 | 2010-11-24 | 陕西中烟工业有限责任公司 | On-line quick detection instrument for perfuming uniformity of tobacco shreds |
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