CN201653961U

CN201653961U - On-line quick detection instrument for perfuming uniformity of tobacco shreds

Info

Publication number: CN201653961U
Application number: CN201020161125XU
Authority: CN
Inventors: 雷东锋; 孙胜兵; 王宗英
Original assignee: China Tobacco Shaanxi Industrial Co Ltd
Current assignee: China Tobacco Shaanxi Industrial Co Ltd
Priority date: 2010-04-16
Filing date: 2010-04-16
Publication date: 2010-11-24
Anticipated expiration: 2020-04-16

Abstract

The utility model relates to an on-line quick detection instrument for the perfuming uniformity of tobacco shreds, which comprises a first sensor 1, a second sensor 2, a measuring circuit 3 of a detection point, a measuring circuit 4 of a reference point and a data collection module 5, wherein the first sensor 1 is connected with the data collection module 5 by the measuring circuit 3 of the detection point; the second sensor 2 is connected with the data collection module 5 by the measuring circuit 4 of the reference point; the utility model adopts a reference method and eliminates the influence of environmental factors to a measurement result effectively; and the utility model can also be suitable for detecting the concentration of other high-concentration alcohol, does not have requirements on whether the environment of the detection point is sealed or not, can realize continuous real-time detection and has wide application range.

Description

Tobacco perfuming homogeneity on-line quick detection instrument

Technical field

The utility model relates to the detection of the alcohol concentration of volatilizing in a kind of perfuming cigarette process, particularly a kind of tobacco perfuming homogeneity on-line detector.

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 human body exhalation 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 to drive when intoxicated, also the someone uses the vehicle-mounted alcohol pick-up unit to detect the drink concentration of back exhalation alcohol of people, but be to use the deficiency of this monitor to be: except having above-mentioned limitation, also to be subjected to such environmental effects big, if its testing result just had deviation when the alcohol content of itself was big in the air, cause testing result inaccurate.

The utility model content

But the purpose of this utility model is to provide a kind of little online in real time of such environmental effects that is subjected to detect and the wider tobacco perfuming homogeneity on-line quick detection instrument of the scope of application.

What the utility model was related 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, 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 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 modular converter and computing machine; Computing machine is to be connected with data acquisition module by the communication modular converter.

Above-mentioned tested point metering circuit all is made up of the sensor excitation circuit and the differential amplifier circuit that are connected successively with the reference point metering circuit.

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 constituted the light-emitting diodes tube loop; 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.

The above-mentioned first sensor and second sensor all can adopt QM-J1 alcohol sensor or SCH-004 alcohol sensor.

The beneficial effects of the utility model are:

Its sensor measurement electronic circuit board of tobacco perfuming homogeneity on-line quick detection instrument provided by the utility model 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 influence of environmental factor to 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, the detector that while the utility model provides is that continuity detects, 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, the tobacco perfuming homogeneity on-line quick detection instrument that the utility model provides also comprises communication modular converter and computing machine, so its measurement result also shows with waveform except that 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 synoptic diagram;

Fig. 2 is the sensor excitation circuit;

Among the figure: 1-first sensor, 2-second sensor, 3-tested point metering circuit, 4-reference point metering circuit, 5-data acquisition module, 6-communication modular converter, 7-computing machine.

Embodiment

What the utility model was related is a kind of tobacco perfuming homogeneity on-line quick detection instrument, referring to Fig. 1, comprise first sensor 1, second sensor 2, check point metering circuit 3, reference point metering circuit 4, data acquisition module 5, communication modular converter 6 and computing machine 7; First sensor 1 is connected with data acquisition module 5 by check point metering circuit 3; Described second sensor 2 is to be connected with data acquisition module 5 by reference point metering circuit 4, and communication modular converter 6 is connected between data acquisition module 5 and the computing machine 7.

The essence that in the perfuming cigarette process, is applied generally all with alcohol as solvent, and alcohol has stronger volatility, therefore can estimate the homogeneity of tobacco perfuming by measuring the alcohol concentration of volatilizing in the air of pipe tobacco top.The related on-line quick detection instrument of the utility model is to change tested point and reference point (being environment) alcohol concentration into voltage signal respectively by the first sensor 1 and second sensor 2, tested point metering circuit 3 and reference point metering circuit 4 receive the voltage signal by

first sensor

1 and 2 inputs of second sensor respectively, and the signal of first sensor 1 and the input of 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 imported computing machines 7 with the data that collect by communication modular converter 6, carry out various data operations, analyze, and with the testing result storage, in order to inquiry; After system handles, obtain the alcohol concentration of actual tested point, be first sensor 1 detected concentration and deduct second sensor, 2 detected concentration, so just eliminated Effect of Environmental, obtain accurate values.

The above-mentioned first sensor 1 and second sensor 2 all can adopt QM-J1 model alcohol sensor or SCH-004 model alcohol sensor.

Data acquisition module 5 can adopt the module of the ADAM-4019 model in the ADAM4000 series module.

Communication modular converter 6 also can adopt the modular converter of ADAM-4520 model, by 9 core cables or directly buy Serial Port Line and be connected with computing machine 7.

Tested point metering circuit 3 and reference point metering circuit 4 all are made up of sensor excitation circuit and differential amplifier circuit, the input end of sensing exciting circuit is connected with the output terminal of the first sensor 1 or second sensor 2, its output terminal is connected with the input end of differential amplifier circuit, and the signal of first sensor 1 and second sensor 2 being gathered by differential amplifier circuit sends data acquisition module 5 respectively to.

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 constituted the light-emitting diodes tube loop; 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 measuring influencing each other between loop and the heating circuit.The circuit working principle: the

heating terminal

1,2 of sensor QM-J1 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, the resistance that its sensing body is 3,4 changes, 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

1. tobacco perfuming homogeneity on-line quick detection instrument, it is characterized in that: described on-line quick detection instrument comprises first sensor, 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 second sensor is to be connected with data acquisition module by the reference point metering 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 modular converter and computing machine; Described computing machine is to be connected with data acquisition module by the communication modular converter.

3. tobacco perfuming homogeneity on-line quick detection instrument according to claim 1 and 2 is characterized in that: described tested point metering circuit all is made up of the sensor excitation circuit and the differential amplifier circuit that are connected successively with the reference point metering circuit.

4. tobacco perfuming homogeneity on-line quick detection instrument according to claim 3 is characterized in that: described 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 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 constituted the light-emitting diodes tube loop; 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.

5. tobacco perfuming homogeneity on-line quick detection instrument according to claim 4, it is characterized in that: the described first sensor and second sensor all adopt QM-J1 alcohol sensor or SCH-004 alcohol sensor.

6. tobacco perfuming homogeneity on-line quick detection instrument according to claim 5, it is characterized in that: the model of described differential amplifier circuit is LM324.

7. tobacco perfuming homogeneity on-line quick detection instrument according to claim 6, it is characterized in that: the model of described data acquisition module is ADAM-4019.

8. tobacco perfuming homogeneity on-line quick detection instrument according to claim 7, it is characterized in that: the model of described communication modular converter is ADAM-4520.