CN207181216U - Density of tobacco rod detection means - Google Patents
Density of tobacco rod detection means Download PDFInfo
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- CN207181216U CN207181216U CN201721051662.7U CN201721051662U CN207181216U CN 207181216 U CN207181216 U CN 207181216U CN 201721051662 U CN201721051662 U CN 201721051662U CN 207181216 U CN207181216 U CN 207181216U
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- density
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- resonator
- temperature
- tobacco rod
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Abstract
The utility model provides a kind of density of tobacco rod detection means, including resonator, frequency tuning module, microwave signal generator, the first temperature compensation module, second temperature compensating module, sound detector, analog-to-digital conversion module and data processing module；The frequency tuning module is connected with the microwave signal generator, the microwave signal generator is connected with the resonator and first temperature compensation module respectively, the resonator is connected with the sound detector and the second temperature compensating module respectively, the sound detector is connected with the analog-to-digital conversion module, and the analog-to-digital conversion module is connected with the data processing module.Density of tobacco rod detection means provided by the utility model can improve the accuracy of detection of density of tobacco rod detection, avoid microwave detection signals interfered by outside, improve the stability of Density Detection.
Description
Technical field
The utility model belongs to Density Detection technical field, is to be related to a kind of density of tobacco rod detection means more specifically.
Background technology
With the development of modern science and technology, to raw material and product density in industry-by-industry construction and manufacture course of products
Required precision more and more higher, various general and special product Density Detection equipment is arisen at the historic moment, so as to form detection device one
When the market pattern that a hundred flowers blossom.Existing density of tobacco rod detection device is largely ultrasound examination, vibration detection, radiation survey
Examination, infrared ray test etc..The advantages of such detection device is that have a wide range of application, but shortcoming is also than more prominent, such as detection speed
Slowly, precision is low, there is injury to human body, and test is unstable, serious etc. by external interference.
Utility model content
The purpose of this utility model is to provide a kind of density of tobacco rod detection means, it is intended to solves current density of tobacco rod detection
Accuracy of detection it is low, easily by external interference and detection it is unstable the problem of.
To achieve the above object, the technical solution adopted in the utility model is：A kind of density of tobacco rod detection means is provided, wrapped
Include：Resonator, the frequency tuning module of tuning signal is produced, microwave detection signals are generated according to the tuning signal and are sent to
The microwave signal generator of the resonator, the first temperature compensation module of the microwave signal generator temperature is adjusted, adjusted
The second temperature compensating module of the resonator temperature, the microwave detection signals exported according to the resonator export rectified signal
Sound detector, the rectified signal is converted into the analog-to-digital conversion module of data signal and to the data signal at
The data processing module of reason；
The frequency tuning module is connected with the microwave signal generator, the microwave signal generator respectively with it is described
Resonator is connected with first temperature compensation module, the resonator respectively with the sound detector and the second temperature
Compensating module is connected, and the sound detector is connected with the analog-to-digital conversion module, the analog-to-digital conversion module and the data
Processing module is connected.
Further, in addition to the fixed compensation module to the data processing module input offset data-signal；It is described
Fixed compensation module is connected with the data processing module.
Further, the microwave detection signals of the microwave signal generator output fixed frequency.
Further, in addition to shield shell；The microwave signal generator, the resonator and the sound detector
It is located at the inside of shield casings.
Further, the shield shell is provided with first port and second port；The first port respectively with it is described micro-
Wave generator is connected with the frequency tuning module；The second port respectively with the sound detector and the modulus
Modular converter is connected.
Further, the resonator is provided with cigarette input port, cigarette delivery outlet, detection signal input and detection signal
Output end, the shield shell are provided with the 3rd port and the 4th port；The cigarette input port is connected with the 3rd port, institute
State cigarette delivery outlet with the 4th port to be connected, the detection signal input is connected with the microwave signal generator, institute
Detection signal output end is stated with the sound detector to be connected.
Further, the shield shell is the housing of aluminium material.
Further, first temperature compensation module includes the first temperature sensor, the first temperature controller and first
Heater block；First temperature controller is connected with first temperature sensor and first heater block respectively, institute
State the first temperature sensor and first heater block is connected with the microwave signal generator.
Further, the second temperature compensating module includes second temperature sensor, second temperature controller and second
Heater block；The second temperature controller is connected with the second temperature sensor and second heater block respectively, institute
State second temperature sensor and second heater block is connected with the resonator.
Further, the resonator is the cavity of copper material.
The beneficial effect of density of tobacco rod detection means provided by the utility model is：It is close that cigarette is carried out using microwave signal
Degree detection, microwave detection signals are received after resonator by sound detector, and data processing module exports to sound detector
Rectified signal handled, the density of tobacco rod in resonator is obtained according to the power of rectified signal, so as to realize Density Detection,
The accuracy of detection for improving density of tobacco rod and detecting is combined by microwave technology and Density Detection technology；Adjusted by temperature-compensating micro-
The temperature of wave generator resonant cavity, avoid microwave detection signals interfered by outside, improve the stability of Density Detection.
Brief description of the drawings
Fig. 1 is the structural representation for the density of tobacco rod detection means that the utility model one embodiment provides；
Fig. 2 is the structural representation for the density of tobacco rod detection means that another embodiment of the utility model provides；
Fig. 3 is the top view cross section signal of shield shell in the density of tobacco rod detection means that the utility model embodiment provides
Figure；
Fig. 4 be Fig. 3 shown in density of tobacco rod detection means in shield shell present invention looks up structural representation；
Fig. 5 be Fig. 3 shown in density of tobacco rod detection means in shield shell side structure schematic view.
In figure：100th, frequency tuning module；200th, microwave signal generator；300th, resonator；301st, cigarette input port；
302nd, cigarette delivery outlet；303rd, detection signal input；304th, detection signal output end；410th, the first temperature compensation module；
411st, the first temperature sensor；412nd, the first temperature controller；413rd, the first heater block；420th, second temperature compensating module；
421st, second temperature sensor；422nd, second temperature controller；423rd, the second heater block；500th, sound detector；600th, mould
Number modular converter；700th, data processing module；800th, fixed compensation module；900th, shield shell；901 first ports；902nd,
Two-port netwerk；903rd, the 3rd port；904th, the 4th port；905th, fifth port；906th, the first side wall；907th, second sidewall.
Embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect are more clearly understood, with
Lower combination drawings and Examples, the utility model is further elaborated.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
Referring to Fig. 1, existing illustrate to density of tobacco rod detection means provided by the utility model.The density of tobacco rod inspection
Surveying device includes frequency tuning module 100, microwave signal generator 200, resonator 300, the first temperature compensation module 410, the
Two temperature compensation modules 420, sound detector 500, analog-to-digital conversion module 600 and data processing module 700.
Frequency tuning module 100 is connected with microwave signal generator 200.Microwave signal generator 200 respectively with resonator
300 are connected with the first temperature compensation module 410.Resonator 300 respectively with sound detector 500 and second temperature compensating module
420 are connected.Sound detector 500 is connected with analog-to-digital conversion module 600.Analog-to-digital conversion module 600 and the phase of data processing module 700
Even.
Frequency tuning module 100 produces tuning signal and transmits tuning signal to microwave signal generator 200.Microwave signal
Generator 200 generates microwave detection signals according to tuning signal and is sent to resonator 300.First temperature compensation module 410 is adjusted
Save the temperature of microwave signal generator 200.Second temperature compensating module 420 adjusts the temperature of resonator 300.Sound detector
500 microwave detection signals exported according to resonator 300 export rectified signal.Analog-to-digital conversion module 600 changes rectified signal
For data signal.Data processing module 700 handles data signal.
Density of tobacco rod detection means provided by the utility model, density of tobacco rod detection, microwave inspection are carried out using microwave signal
Survey signal to be received by sound detector 500 after resonator 300, data processing module 700 exports sound detector 500
Rectified signal is handled, and is obtained the density of tobacco rod in resonator 300 according to power, so as to realize Density Detection, is passed through microwave
Technology and Density Detection technology are combined the accuracy of detection for improving density of tobacco rod detection；Microwave signal is adjusted by temperature-compensating to send out
The temperature of the raw resonant cavity 300 of device 200, avoids microwave detection signals interfered by outside, improves the stability of Density Detection.
Microwave refers to the electromagnetic wave that wavelength is 1mm-1m, and it has five features in engineer applied：Orientable radiation, dress
It is relatively easy to put manufacture；Various barriers are run into be easy to reflect；Diffracting power is poor；Transmission characteristic is good, by ash in transmitting procedure
The external interferences such as cloud of dust mist, strong light are small；Absorption of the medium to microwave is directly proportional to the dielectric constant of medium.Therefore by microwave technology
It is combined with Density Detection technology, it is possible to achieve to the Density Detection of the pinpoint accuracy of cigarette.
The density of tobacco rod detection means that the utility model embodiment provides is mainly using microwave signal in closed wire chamber
Propagate in vivo, the characteristic of resonance point is formed between transmitting terminal is received.Treated when being added in cavity resonator with dielectric characteristic
After test sample product, micro- due to medium will change around effect, the resonance characteristic of resonator.The general medium that adds is lossy
, it can not only cause the change of resonant frequency, can also cause the change of transimission power with dissipating because of the energy absorption of medium.
Therefore, the density of testee can be obtained by detecting the changed power of microwave signal.
Specifically, the tuning signal that frequency tuning module 100 exports is used for microwave caused by microwave signal generator 200
The frequency of detection signal is adjusted.Microwave detection signals after resonator 300 by sound detector 500 by being received.Modulus turns
Mold changing block 600 is carried out at analog-to-digital conversion and data with the rectified signal that data processing module 700 generates to sound detector 500
Reason, obtains density measurement result.
Further, referring to Fig. 2, one kind as density of tobacco rod detection means provided by the utility model is embodied
Mode, the density of tobacco rod detection means also include fixed compensation module 800.Fixed compensation module 800 and data processing module
700 are connected.Offset data signal is transferred to data processing module 700 by fixed compensation module 800.
For deviation caused by reduction system internal test, accuracy in detection is further improved, before testing, can utilize and survey
Try standard component and obtain fixed compensation value.Specifically, density measurement value is obtained when testing standard part can be put into resonator 300,
Difference is calculated by the nominal value of density measurement value and standard component, using difference as fixed compensation value, is stored in fixed compensation mould
In block 800.When actual density detects, fixed compensation value is transferred to number by fixed compensation module 800 in the form of data signal
According to processing module 700, data processing module 700 is modified compensation using fixed compensation value to the Density Detection value drawn, from
And improve accuracy in detection.
Further, a kind of embodiment as density of tobacco rod detection means provided by the utility model, microwave
Signal generator 200 exports the microwave detection signals of fixed frequency.
In the present embodiment, density of tobacco rod detection means can be used for high speed Density Detection, i.e., at full speed by humorous
Shake chamber 300 cigarette carry out Density Detection.As high speed device for detecting density, the density measure of microwave remote sensor should be able to provide foot
Enough high measurement data rates.Therefore, density measure can use fixed frequency microwave signal, be carried out by power detection mode.Adopt
Influence of the low frequency change to transimission power can drop with the microwave signal of fixed frequency, so as to improve detection means processing data
Speed.For fixed frequency microwave signal, the change of the caused transimission power of resonator resonance characteristic change is non-linear
, still, when testee is by resonator 300, the change of output signal frequency is proportional to testee density, can be with
Changed power and the function of density can be obtained by experimental fit, so as to obtain testee according to the changed power measured
Density.
Further, 3 are referred to, a kind of specific embodiment party as density of tobacco rod detection means provided by the utility model
Formula, the density of tobacco rod detection means also include shield shell 900.Microwave signal generator 200, resonator 300 and signal demodulator
Device 500 is inside shield shell 900.
Wherein, shield shell 900 uses metal material, close so as to improve for shielding the interference of outer bound pair microwave signal
Spend the accuracy in detection of detection.Alternatively, shield shell 900 is the housing of aluminium material.Microwave signal generator 200, resonator
300 and sound detector 500 be fixed on the bottom plate of shield shell 900.Microwave signal generator 200 and sound detector
500 are connected by coaxial line with the resonator 300.The inner space of shield shell 900 is by analogue simulation gained, energy
It is enough effectively to avoid producing resonance in the space outside resonator 300, strengthen the stability of detection.
Further, Fig. 3 and Fig. 4 is referred to, one kind tool as density of tobacco rod detection means provided by the utility model
Body embodiment, shield shell 900 are provided with first port 901 and second port 902.First port 901 respectively with microwave signal
Generator 200 is connected with frequency tuning module 100, second port 902 respectively with sound detector 500 and analog-to-digital conversion module
600 are connected.
In the present embodiment, first port 901 and second port 902 are located at the bottom plate of shield shell 900.First port
901 are connected inside shield shell 900 by coaxial line with microwave signal generator 200, the outside of the shield shell 900 with
Frequency tuning module 100 is connected.Second port 902 passes through coaxial line and the phase of sound detector 500 inside shield shell 900
Even, it is connected in the outside of shield shell 900 with analog-to-digital conversion module 600.
Further, Fig. 3 and Fig. 5 is referred to, one kind tool as density of tobacco rod detection means provided by the utility model
Body embodiment, resonator 300 are provided with cigarette input port 301, cigarette delivery outlet 302, detection signal input 303 and detection letter
Number output end 304.Shield shell 900 is provided with the 3rd port 903 and the 4th port 904.The port of cigarette input port 301 and the 3rd
903 are connected, and cigarette delivery outlet 302 is connected with the 4th port 904, detection signal input 303 and the phase of microwave signal generator 200
Even, detection signal output end 304 is connected with sound detector 500.
In the present embodiment, the first side wall 906 of shield shell 900 is provided with the 3rd port 903, with the first side wall 906
Relative second sidewall 907 is provided with the 4th port 904.Alternatively, resonator 300 is the cylindric of inner hollow.Resonator
300 the first bottom surface is relative with the first side wall 906, and the second bottom surface of resonator 300 is relative with second sidewall 907.Detection signal
Input 303 and detection signal output end 304 are located at the arc surface of columned resonator 300.Detection signal input
303 are connected by coaxial line with microwave signal generator 200, and detection signal output end 304 passes through coaxial line and sound detector
500 are connected.Cigarette is successively from the 3rd port 903 on shield shell 900, the cigarette input port 301 of resonator 300, resonator
The 4th port 904 on 300 cigarette delivery outlet 302 and shield shell 900 passes through.Resonator 300 is the cylinder of inner hollow
Shape, be advantageous to the smooth by avoiding cigarette from being stagnated in resonator 300, influenceing Density Detection of cigarette.
Alternatively, resonator 300 is the cavity of copper material.Copper has good shielding properties, can preferably resist interference,
So that the accuracy in detection of density of tobacco rod detection means greatly improves.
Further, refering to Fig. 3, a kind of specific embodiment party as density of tobacco rod detection means provided by the utility model
Formula, the first temperature compensation module 410 include the first temperature sensor 411, the first temperature controller 412 and the first heater block
413.First temperature controller 412 is connected with the first temperature sensor 411 and the first heater block 413 respectively, and the first temperature passes
The heater block 413 of sensor 411 and first is connected with microwave signal generator 200.
In the present embodiment, the first heater block 413 can be heating plate or heating tape etc., can be according to control signal pair
Object is heated.First temperature sensor 411 is fixed and is connected to microwave signal generator 200, for sensing microwave signal
The temperature of device 200, and temperature signal is transferred to the first temperature controller 412.First temperature controller 412 can be according to temperature
Signal is spent microwave signal occurs according to control signal to the transmission of control signals of the first heater block 413, the first heater block 413
Device 200 is heated or stops heating, so that microwave signal generator 200 is stable at stationary temperature, exports the micro- of stabilization
Ripple detection signal, and then improve the stability of Density Detection.Alternatively, the first temperature sensor 411, the first temperature controller
412 and first heater block 413 be fixed at the inside of shield shell 900.First heater block 413 is heating plate, is located at
The side of microwave signal generator 200.
Further, Fig. 3 and Fig. 4 is referred to, one kind tool as density of tobacco rod detection means provided by the utility model
Body embodiment, second temperature compensating module 420 includes second temperature sensor 421, second temperature controller 422 and second adds
Thermal part 423.Second temperature controller 422 is connected with the heater block 423 of second temperature sensor 421 and second respectively, and second
The heater block 423 of temperature sensor 421 and second is connected with resonator 300.
In the present embodiment, the second heater block 423 can be heating plate or heating tape etc., can be according to control signal pair
Object is heated.Second temperature sensor 421 is fixed and is connected to resonator 300, for sensing the temperature of resonator 300, and will
Temperature signal is transferred to second temperature controller 422.Second temperature controller 422 can be according to temperature signal to the second heating part
The transmission of control signals of part 423, the second heater block 423 are heated to resonator 300 according to control signal or stop heating,
So that resonator 300 is stable at stationary temperature, the shadow for avoiding ambient temperature from propagating the inside microwave signal of resonator 300
Ring, and then improve the stability of Density Detection.
Alternatively, the heater block 423 of second temperature sensor 421 and second is inside shield shell 900；Second temperature
Controller 422 is located at the outside of shield shell 900.Shield shell 900 is provided with fifth port 905, the He of second temperature sensor 421
Second heater block 423 is connected by transmission line with fifth port 905.Fifth port 905 passes through in the outside of shield shell 900
Connecting line is connected with second temperature controller 422.Second heater block 423 is heating tape.If resonator 300 is inner hollow
Cylindric, then the second heater block 423 is wound in columned arc surface, more balanced to be heated to resonator 300, reduces and adds
Influence of the thermal process to microwave signal, improve the stability of Density Detection.
The beneficial effect of density of tobacco rod detection means provided by the utility model is：It is close that cigarette is carried out using microwave signal
Degree detection, microwave detection signals are received after resonator 300 by sound detector 500, and data processing module 700 is examined to signal
The rectified signal that ripple device 500 exports is handled, and the density of tobacco rod in resonator 300 can be obtained according to power, so as to realize
Density Detection, the accuracy of detection for improving density of tobacco rod and detecting is combined by microwave technology and Density Detection technology；Pass through temperature
The temperature of the resonant cavity 300 of compensation adjustment microwave signal generator 200, avoids microwave detection signals interfered by outside, improves
The stability of Density Detection.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
- A kind of 1. density of tobacco rod detection means, it is characterised in that including：Resonator, the frequency tuning module of tuning signal is produced, Microwave detection signals are generated according to the tuning signal and are sent to the microwave signal generator of the resonator, regulation is described micro- First temperature compensation module of wave generator temperature, the second temperature compensating module of the resonator temperature is adjusted, according to The sound detector of the microwave detection signals output rectified signal of the resonator output, numeral is converted to by the rectified signal The analog-to-digital conversion module of signal and the data processing module handled the data signal；The frequency tuning module is connected with the microwave signal generator, the microwave signal generator respectively with the resonance Chamber is connected with first temperature compensation module, and the resonator compensates with the sound detector and the second temperature respectively Module is connected, and the sound detector is connected with the analog-to-digital conversion module, the analog-to-digital conversion module and the data processing Module is connected.
- 2. density of tobacco rod detection means as claimed in claim 1, it is characterised in that also include defeated to the data processing module Enter the fixed compensation module of offset data signal；The fixed compensation module is connected with the data processing module.
- 3. density of tobacco rod detection means as claimed in claim 1, it is characterised in that the microwave signal generator output is fixed The microwave detection signals of frequency.
- 4. density of tobacco rod detection means as claimed in claim 1, it is characterised in that also including shield shell；The microwave letter Number generator, the resonator and the sound detector are located at the inside of shield casings.
- 5. density of tobacco rod detection means as claimed in claim 4, it is characterised in that the shield shell be provided with first port and Second port；The first port is connected with the microwave signal generator and the frequency tuning module respectively；Described second Port is connected with the sound detector and the analog-to-digital conversion module respectively.
- 6. density of tobacco rod detection means as claimed in claim 4, it is characterised in that the resonator be provided with cigarette input port, Cigarette delivery outlet, detection signal input and detection signal output end, the shield shell are provided with the 3rd port and the 4th port； The cigarette input port is connected with the 3rd port, and the cigarette delivery outlet is connected with the 4th port, the detection letter Number input is connected with the microwave signal generator, and the detection signal output end is connected with the sound detector.
- 7. density of tobacco rod detection means as claimed in claim 4, it is characterised in that the shield shell is the shell of aluminium material Body.
- 8. density of tobacco rod detection means as claimed in claim 1, it is characterised in that first temperature compensation module includes the One temperature sensor, the first temperature controller and the first heater block；First temperature controller is warm with described first respectively Degree sensor is connected with first heater block, first temperature sensor and first heater block with it is described micro- Wave generator is connected.
- 9. density of tobacco rod detection means as claimed in claim 1, it is characterised in that the second temperature compensating module includes the Two temperature sensors, second temperature controller and the second heater block；The second temperature controller is warm with described second respectively Degree sensor is connected with second heater block, the second temperature sensor and second heater block with it is described humorous The chamber that shakes is connected.
- 10. the density of tobacco rod detection means as described in claim any one of 1-9, it is characterised in that the resonator is copper material The cavity of matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721051662.7U CN207181216U (en) | 2017-08-22 | 2017-08-22 | Density of tobacco rod detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721051662.7U CN207181216U (en) | 2017-08-22 | 2017-08-22 | Density of tobacco rod detection means |
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| Publication Number | Publication Date |
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| CN207181216U true CN207181216U (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721051662.7U Expired - Fee Related CN207181216U (en) | 2017-08-22 | 2017-08-22 | Density of tobacco rod detection means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527034A (en) * | 2022-02-11 | 2022-05-24 | 浙江中烟工业有限责任公司 | Method for improving cigarette density online detection precision by using multi-source temperature dynamic compensation |
-
2017
- 2017-08-22 CN CN201721051662.7U patent/CN207181216U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114527034A (en) * | 2022-02-11 | 2022-05-24 | 浙江中烟工业有限责任公司 | Method for improving cigarette density online detection precision by using multi-source temperature dynamic compensation |
| CN114527034B (en) * | 2022-02-11 | 2024-03-01 | 浙江中烟工业有限责任公司 | Method for improving on-line detection precision of cigarette density by utilizing multi-source temperature dynamic compensation |
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